/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-node-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:23:36,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:23:36,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:23:37,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 22:23:37,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 22:23:37,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 22:23:37,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 22:23:37,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 22:23:37,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 22:23:37,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 22:23:37,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 22:23:37,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 22:23:37,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:23:37,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:23:37,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:23:37,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:23:37,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:23:37,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:23:37,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:23:37,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:23:37,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:23:37,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:23:37,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:23:37,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:23:37,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 22:23:37,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:23:37,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:23:37,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:23:37,039 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 22:23:37,053 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:23:37,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:23:37,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:23:37,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:23:37,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:23:37,054 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:23:37,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:23:37,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:23:37,055 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:23:37,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:23:37,055 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:23:37,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:23:37,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:23:37,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:23:37,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:23:37,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:23:37,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:23:37,056 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:23:37,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:23:37,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:23:37,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:23:37,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:23:37,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:23:37,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:23:37,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:23:37,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:23:37,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:23:37,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:23:37,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:23:37,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:23:37,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:23:37,057 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:23:37,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:23:37,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:23:37,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:23:37,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:23:37,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:23:37,252 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:23:37,254 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:23:37,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-node-symm.wvr.c [2022-02-10 22:23:37,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf534f464/f8bf52c81c2b4b0f8e0fac8f5c07aaec/FLAG1394fc6f0 [2022-02-10 22:23:37,654 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:23:37,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-symm.wvr.c [2022-02-10 22:23:37,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf534f464/f8bf52c81c2b4b0f8e0fac8f5c07aaec/FLAG1394fc6f0 [2022-02-10 22:23:37,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf534f464/f8bf52c81c2b4b0f8e0fac8f5c07aaec [2022-02-10 22:23:37,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:23:37,681 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:23:37,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:23:37,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:23:37,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:23:37,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:23:37" (1/1) ... [2022-02-10 22:23:37,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3055c4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37, skipping insertion in model container [2022-02-10 22:23:37,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:23:37" (1/1) ... [2022-02-10 22:23:37,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:23:37,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:23:37,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-symm.wvr.c[3305,3318] [2022-02-10 22:23:37,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:23:37,876 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:23:37,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-symm.wvr.c[3305,3318] [2022-02-10 22:23:37,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:23:37,906 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:23:37,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37 WrapperNode [2022-02-10 22:23:37,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:23:37,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:23:37,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:23:37,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:23:37,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37" (1/1) ... [2022-02-10 22:23:37,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37" (1/1) ... [2022-02-10 22:23:37,947 INFO L137 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 314 [2022-02-10 22:23:37,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:23:37,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:23:37,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:23:37,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:23:37,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37" (1/1) ... [2022-02-10 22:23:37,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37" (1/1) ... [2022-02-10 22:23:37,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37" (1/1) ... [2022-02-10 22:23:37,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37" (1/1) ... [2022-02-10 22:23:37,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37" (1/1) ... [2022-02-10 22:23:37,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37" (1/1) ... [2022-02-10 22:23:37,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37" (1/1) ... [2022-02-10 22:23:37,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:23:37,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:23:37,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:23:37,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:23:37,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37" (1/1) ... [2022-02-10 22:23:37,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:23:38,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:23:38,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 22:23:38,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 22:23:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:23:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:23:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:23:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:23:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:23:38,040 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:23:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:23:38,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:23:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:23:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-10 22:23:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:23:38,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:23:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:23:38,043 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:23:38,155 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:23:38,156 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:23:38,578 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:23:38,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:23:38,596 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-10 22:23:38,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:23:38 BoogieIcfgContainer [2022-02-10 22:23:38,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:23:38,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:23:38,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:23:38,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:23:38,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:23:37" (1/3) ... [2022-02-10 22:23:38,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fbff1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:23:38, skipping insertion in model container [2022-02-10 22:23:38,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:23:37" (2/3) ... [2022-02-10 22:23:38,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fbff1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:23:38, skipping insertion in model container [2022-02-10 22:23:38,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:23:38" (3/3) ... [2022-02-10 22:23:38,606 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-symm.wvr.c [2022-02-10 22:23:38,609 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:23:38,609 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:23:38,609 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:23:38,610 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:23:38,681 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,682 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,682 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,682 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,682 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,682 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,682 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,684 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,684 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,685 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,685 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,685 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,685 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,685 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,686 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,686 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,686 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,686 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,686 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,687 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,687 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,687 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,687 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,687 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,688 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,688 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,688 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,688 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,688 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,688 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,688 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,688 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,688 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,689 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,689 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,689 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,689 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,689 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,689 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,689 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,689 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,690 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,690 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,690 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,690 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,690 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,690 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,690 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,690 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,690 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,691 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,691 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,691 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,691 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,691 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,691 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,692 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,692 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,692 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,692 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,692 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,692 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,692 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,692 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,692 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,693 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,693 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,693 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,693 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,693 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,693 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,693 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,693 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,693 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,693 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,694 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,694 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,694 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,694 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,694 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,696 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,696 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,698 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,704 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,704 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,704 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,704 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,704 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,704 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,704 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,704 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,704 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,704 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,704 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,705 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,705 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,705 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,705 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,705 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,705 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,706 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,706 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,706 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,706 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,706 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,706 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,706 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,706 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,706 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,706 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,706 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,706 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,707 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,707 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,707 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,707 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,707 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,708 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,708 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,708 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,708 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,708 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,708 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,710 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,710 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,711 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,711 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,711 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,711 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,711 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,711 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,712 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,712 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,712 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,712 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,712 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,712 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,712 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,712 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,712 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,712 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,712 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,713 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,713 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,713 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,713 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,713 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,713 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,713 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,714 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,714 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,714 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,714 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,714 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,714 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,714 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,714 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,714 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,714 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,714 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,714 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,715 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,716 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,716 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,716 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,716 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,716 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,716 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,716 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,716 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,716 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,717 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,717 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,720 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,720 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,721 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,721 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,721 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,721 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,721 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,721 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,721 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,726 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,726 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,726 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,732 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,732 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,732 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,732 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,735 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,735 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,735 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,735 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,738 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,738 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,744 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,744 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,744 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,744 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,744 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,744 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,744 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,744 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:23:38,748 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 22:23:38,790 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:23:38,796 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 22:23:38,797 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 22:23:38,814 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 385 places, 414 transitions, 844 flow [2022-02-10 22:23:39,206 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 14694 states, 14693 states have (on average 2.8599333015721773) internal successors, (42021), 14693 states have internal predecessors, (42021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 14694 states, 14693 states have (on average 2.8599333015721773) internal successors, (42021), 14693 states have internal predecessors, (42021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-02-10 22:23:39,353 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:39,354 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:39,355 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:39,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:39,368 INFO L85 PathProgramCache]: Analyzing trace with hash -670772536, now seen corresponding path program 1 times [2022-02-10 22:23:39,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:39,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840384261] [2022-02-10 22:23:39,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:39,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:39,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:39,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:39,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840384261] [2022-02-10 22:23:39,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840384261] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:39,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:39,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:23:39,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383503973] [2022-02-10 22:23:39,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:39,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:23:39,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:39,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:23:39,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:23:39,703 INFO L87 Difference]: Start difference. First operand has 14694 states, 14693 states have (on average 2.8599333015721773) internal successors, (42021), 14693 states have internal predecessors, (42021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:39,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:39,880 INFO L93 Difference]: Finished difference Result 14694 states and 41043 transitions. [2022-02-10 22:23:39,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:23:39,883 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2022-02-10 22:23:39,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:39,961 INFO L225 Difference]: With dead ends: 14694 [2022-02-10 22:23:39,962 INFO L226 Difference]: Without dead ends: 13736 [2022-02-10 22:23:39,964 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:23:39,968 INFO L934 BasicCegarLoop]: 379 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:39,968 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 379 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:23:40,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13736 states. [2022-02-10 22:23:40,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13736 to 13736. [2022-02-10 22:23:40,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13736 states, 13735 states have (on average 2.795413178012377) internal successors, (38395), 13735 states have internal predecessors, (38395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:40,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13736 states to 13736 states and 38395 transitions. [2022-02-10 22:23:40,532 INFO L78 Accepts]: Start accepts. Automaton has 13736 states and 38395 transitions. Word has length 259 [2022-02-10 22:23:40,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:40,534 INFO L470 AbstractCegarLoop]: Abstraction has 13736 states and 38395 transitions. [2022-02-10 22:23:40,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:40,535 INFO L276 IsEmpty]: Start isEmpty. Operand 13736 states and 38395 transitions. [2022-02-10 22:23:40,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-02-10 22:23:40,567 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:40,567 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:40,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:23:40,568 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:40,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:40,569 INFO L85 PathProgramCache]: Analyzing trace with hash 173473607, now seen corresponding path program 1 times [2022-02-10 22:23:40,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:40,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990335743] [2022-02-10 22:23:40,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:40,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:40,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:40,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990335743] [2022-02-10 22:23:40,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990335743] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:40,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:40,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:23:40,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073421522] [2022-02-10 22:23:40,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:40,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:23:40,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:40,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:23:40,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:23:40,732 INFO L87 Difference]: Start difference. First operand 13736 states and 38395 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:40,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:40,884 INFO L93 Difference]: Finished difference Result 14891 states and 41620 transitions. [2022-02-10 22:23:40,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:23:40,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2022-02-10 22:23:40,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:40,942 INFO L225 Difference]: With dead ends: 14891 [2022-02-10 22:23:40,942 INFO L226 Difference]: Without dead ends: 14891 [2022-02-10 22:23:40,942 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:23:40,943 INFO L934 BasicCegarLoop]: 431 mSDtfsCounter, 93 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:40,943 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 762 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:23:40,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14891 states. [2022-02-10 22:23:41,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14891 to 13967. [2022-02-10 22:23:41,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13967 states, 13966 states have (on average 2.7953601603895173) internal successors, (39040), 13966 states have internal predecessors, (39040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:41,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13967 states to 13967 states and 39040 transitions. [2022-02-10 22:23:41,307 INFO L78 Accepts]: Start accepts. Automaton has 13967 states and 39040 transitions. Word has length 259 [2022-02-10 22:23:41,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:41,310 INFO L470 AbstractCegarLoop]: Abstraction has 13967 states and 39040 transitions. [2022-02-10 22:23:41,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:41,310 INFO L276 IsEmpty]: Start isEmpty. Operand 13967 states and 39040 transitions. [2022-02-10 22:23:41,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-02-10 22:23:41,344 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:41,344 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:41,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:23:41,344 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:41,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:41,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1506369353, now seen corresponding path program 1 times [2022-02-10 22:23:41,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:41,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395047436] [2022-02-10 22:23:41,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:41,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:41,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:41,464 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:41,464 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395047436] [2022-02-10 22:23:41,464 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395047436] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:41,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:41,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:23:41,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196049637] [2022-02-10 22:23:41,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:41,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:23:41,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:41,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:23:41,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:23:41,467 INFO L87 Difference]: Start difference. First operand 13967 states and 39040 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:41,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:41,622 INFO L93 Difference]: Finished difference Result 15157 states and 42350 transitions. [2022-02-10 22:23:41,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:23:41,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 261 [2022-02-10 22:23:41,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:41,656 INFO L225 Difference]: With dead ends: 15157 [2022-02-10 22:23:41,657 INFO L226 Difference]: Without dead ends: 15157 [2022-02-10 22:23:41,657 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:23:41,658 INFO L934 BasicCegarLoop]: 434 mSDtfsCounter, 66 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:41,658 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 765 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:23:41,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15157 states. [2022-02-10 22:23:41,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15157 to 14205. [2022-02-10 22:23:42,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14205 states, 14204 states have (on average 2.795128132920304) internal successors, (39702), 14204 states have internal predecessors, (39702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:42,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14205 states to 14205 states and 39702 transitions. [2022-02-10 22:23:42,048 INFO L78 Accepts]: Start accepts. Automaton has 14205 states and 39702 transitions. Word has length 261 [2022-02-10 22:23:42,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:42,050 INFO L470 AbstractCegarLoop]: Abstraction has 14205 states and 39702 transitions. [2022-02-10 22:23:42,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:42,050 INFO L276 IsEmpty]: Start isEmpty. Operand 14205 states and 39702 transitions. [2022-02-10 22:23:42,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:23:42,080 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:42,080 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:42,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:23:42,081 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:42,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:42,081 INFO L85 PathProgramCache]: Analyzing trace with hash -143658131, now seen corresponding path program 1 times [2022-02-10 22:23:42,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:42,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273800231] [2022-02-10 22:23:42,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:42,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:42,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:42,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273800231] [2022-02-10 22:23:42,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273800231] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:42,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:42,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:23:42,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259821439] [2022-02-10 22:23:42,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:42,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:23:42,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:42,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:23:42,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:23:42,701 INFO L87 Difference]: Start difference. First operand 14205 states and 39702 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:45,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:45,022 INFO L93 Difference]: Finished difference Result 35386 states and 98507 transitions. [2022-02-10 22:23:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:23:45,023 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:23:45,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:45,105 INFO L225 Difference]: With dead ends: 35386 [2022-02-10 22:23:45,105 INFO L226 Difference]: Without dead ends: 35386 [2022-02-10 22:23:45,106 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=889, Invalid=3271, Unknown=0, NotChecked=0, Total=4160 [2022-02-10 22:23:45,112 INFO L934 BasicCegarLoop]: 916 mSDtfsCounter, 4137 mSDsluCounter, 10329 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4137 SdHoareTripleChecker+Valid, 11072 SdHoareTripleChecker+Invalid, 2103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:45,113 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [4137 Valid, 11072 Invalid, 2103 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:23:45,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35386 states. [2022-02-10 22:23:45,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35386 to 16283. [2022-02-10 22:23:45,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16283 states, 16282 states have (on average 2.8205994349588503) internal successors, (45925), 16282 states have internal predecessors, (45925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:45,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16283 states to 16283 states and 45925 transitions. [2022-02-10 22:23:45,697 INFO L78 Accepts]: Start accepts. Automaton has 16283 states and 45925 transitions. Word has length 263 [2022-02-10 22:23:45,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:45,698 INFO L470 AbstractCegarLoop]: Abstraction has 16283 states and 45925 transitions. [2022-02-10 22:23:45,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:45,698 INFO L276 IsEmpty]: Start isEmpty. Operand 16283 states and 45925 transitions. [2022-02-10 22:23:45,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:23:45,730 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:45,730 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:45,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:23:45,731 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:45,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:45,731 INFO L85 PathProgramCache]: Analyzing trace with hash 808311701, now seen corresponding path program 2 times [2022-02-10 22:23:45,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:45,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893579915] [2022-02-10 22:23:45,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:45,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:46,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:46,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:46,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893579915] [2022-02-10 22:23:46,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893579915] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:46,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:46,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:23:46,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748352509] [2022-02-10 22:23:46,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:46,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:23:46,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:46,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:23:46,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:23:46,221 INFO L87 Difference]: Start difference. First operand 16283 states and 45925 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:48,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:48,277 INFO L93 Difference]: Finished difference Result 37590 states and 104987 transitions. [2022-02-10 22:23:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:23:48,277 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:23:48,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:48,359 INFO L225 Difference]: With dead ends: 37590 [2022-02-10 22:23:48,360 INFO L226 Difference]: Without dead ends: 37590 [2022-02-10 22:23:48,361 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=923, Invalid=3499, Unknown=0, NotChecked=0, Total=4422 [2022-02-10 22:23:48,361 INFO L934 BasicCegarLoop]: 927 mSDtfsCounter, 4093 mSDsluCounter, 10847 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4093 SdHoareTripleChecker+Valid, 11642 SdHoareTripleChecker+Invalid, 2183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:48,362 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [4093 Valid, 11642 Invalid, 2183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2146 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:23:48,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37590 states. [2022-02-10 22:23:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37590 to 18351. [2022-02-10 22:23:48,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18351 states, 18350 states have (on average 2.8340054495912805) internal successors, (52004), 18350 states have internal predecessors, (52004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:48,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18351 states to 18351 states and 52004 transitions. [2022-02-10 22:23:48,937 INFO L78 Accepts]: Start accepts. Automaton has 18351 states and 52004 transitions. Word has length 263 [2022-02-10 22:23:48,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:48,937 INFO L470 AbstractCegarLoop]: Abstraction has 18351 states and 52004 transitions. [2022-02-10 22:23:48,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:48,938 INFO L276 IsEmpty]: Start isEmpty. Operand 18351 states and 52004 transitions. [2022-02-10 22:23:48,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:23:48,968 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:48,968 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:48,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:23:48,969 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:48,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:48,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1668153289, now seen corresponding path program 3 times [2022-02-10 22:23:48,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:48,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312016969] [2022-02-10 22:23:48,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:48,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:49,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:49,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:49,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312016969] [2022-02-10 22:23:49,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312016969] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:49,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:49,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:23:49,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315415477] [2022-02-10 22:23:49,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:49,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:23:49,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:49,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:23:49,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:23:49,391 INFO L87 Difference]: Start difference. First operand 18351 states and 52004 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:51,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:51,135 INFO L93 Difference]: Finished difference Result 38359 states and 107175 transitions. [2022-02-10 22:23:51,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:23:51,136 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:23:51,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:51,218 INFO L225 Difference]: With dead ends: 38359 [2022-02-10 22:23:51,218 INFO L226 Difference]: Without dead ends: 38359 [2022-02-10 22:23:51,219 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=826, Invalid=3206, Unknown=0, NotChecked=0, Total=4032 [2022-02-10 22:23:51,219 INFO L934 BasicCegarLoop]: 903 mSDtfsCounter, 3756 mSDsluCounter, 10336 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3756 SdHoareTripleChecker+Valid, 11115 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:51,220 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3756 Valid, 11115 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:23:51,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38359 states. [2022-02-10 22:23:51,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38359 to 18981. [2022-02-10 22:23:51,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18981 states, 18980 states have (on average 2.8345626975763962) internal successors, (53800), 18980 states have internal predecessors, (53800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:51,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18981 states to 18981 states and 53800 transitions. [2022-02-10 22:23:51,917 INFO L78 Accepts]: Start accepts. Automaton has 18981 states and 53800 transitions. Word has length 263 [2022-02-10 22:23:51,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:51,918 INFO L470 AbstractCegarLoop]: Abstraction has 18981 states and 53800 transitions. [2022-02-10 22:23:51,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:51,918 INFO L276 IsEmpty]: Start isEmpty. Operand 18981 states and 53800 transitions. [2022-02-10 22:23:51,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:23:51,950 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:51,950 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:51,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 22:23:51,950 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:51,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:51,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1822535429, now seen corresponding path program 4 times [2022-02-10 22:23:51,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:51,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008115247] [2022-02-10 22:23:51,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:51,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:52,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:52,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:52,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008115247] [2022-02-10 22:23:52,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008115247] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:52,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:52,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:23:52,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887173861] [2022-02-10 22:23:52,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:52,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:23:52,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:52,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:23:52,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:23:52,355 INFO L87 Difference]: Start difference. First operand 18981 states and 53800 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:54,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:54,065 INFO L93 Difference]: Finished difference Result 42882 states and 119153 transitions. [2022-02-10 22:23:54,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:23:54,066 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:23:54,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:54,284 INFO L225 Difference]: With dead ends: 42882 [2022-02-10 22:23:54,285 INFO L226 Difference]: Without dead ends: 42882 [2022-02-10 22:23:54,286 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=857, Invalid=3303, Unknown=0, NotChecked=0, Total=4160 [2022-02-10 22:23:54,287 INFO L934 BasicCegarLoop]: 918 mSDtfsCounter, 3771 mSDsluCounter, 10659 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3771 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:54,288 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3771 Valid, 11446 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1978 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:23:54,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42882 states. [2022-02-10 22:23:54,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42882 to 19107. [2022-02-10 22:23:54,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19107 states, 19106 states have (on average 2.83335077985973) internal successors, (54134), 19106 states have internal predecessors, (54134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:54,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19107 states to 19107 states and 54134 transitions. [2022-02-10 22:23:54,779 INFO L78 Accepts]: Start accepts. Automaton has 19107 states and 54134 transitions. Word has length 263 [2022-02-10 22:23:54,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:54,779 INFO L470 AbstractCegarLoop]: Abstraction has 19107 states and 54134 transitions. [2022-02-10 22:23:54,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:54,780 INFO L276 IsEmpty]: Start isEmpty. Operand 19107 states and 54134 transitions. [2022-02-10 22:23:54,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:23:54,809 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:54,809 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:54,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 22:23:54,810 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:54,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:54,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1758360647, now seen corresponding path program 5 times [2022-02-10 22:23:54,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:54,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426559743] [2022-02-10 22:23:54,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:54,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:55,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:55,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:55,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426559743] [2022-02-10 22:23:55,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426559743] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:55,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:55,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:23:55,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401322687] [2022-02-10 22:23:55,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:55,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:23:55,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:55,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:23:55,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:23:55,217 INFO L87 Difference]: Start difference. First operand 19107 states and 54134 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:56,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:56,694 INFO L93 Difference]: Finished difference Result 26309 states and 73525 transitions. [2022-02-10 22:23:56,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:23:56,695 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:23:56,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:56,743 INFO L225 Difference]: With dead ends: 26309 [2022-02-10 22:23:56,743 INFO L226 Difference]: Without dead ends: 26309 [2022-02-10 22:23:56,744 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=700, Invalid=2840, Unknown=0, NotChecked=0, Total=3540 [2022-02-10 22:23:56,744 INFO L934 BasicCegarLoop]: 877 mSDtfsCounter, 3059 mSDsluCounter, 10286 mSDsCounter, 0 mSdLazyCounter, 1901 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 11028 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:56,744 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3059 Valid, 11028 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1901 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:23:56,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26309 states. [2022-02-10 22:23:57,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26309 to 19359. [2022-02-10 22:23:57,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19359 states, 19358 states have (on average 2.83097427420188) internal successors, (54802), 19358 states have internal predecessors, (54802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19359 states to 19359 states and 54802 transitions. [2022-02-10 22:23:57,246 INFO L78 Accepts]: Start accepts. Automaton has 19359 states and 54802 transitions. Word has length 263 [2022-02-10 22:23:57,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:57,246 INFO L470 AbstractCegarLoop]: Abstraction has 19359 states and 54802 transitions. [2022-02-10 22:23:57,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:57,247 INFO L276 IsEmpty]: Start isEmpty. Operand 19359 states and 54802 transitions. [2022-02-10 22:23:57,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:23:57,276 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:57,276 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:57,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 22:23:57,276 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:57,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:57,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1044610155, now seen corresponding path program 6 times [2022-02-10 22:23:57,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:57,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543381368] [2022-02-10 22:23:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:57,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:57,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:57,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:57,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543381368] [2022-02-10 22:23:57,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543381368] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:57,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:57,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:23:57,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373611745] [2022-02-10 22:23:57,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:57,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:23:57,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:57,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:23:57,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:23:57,673 INFO L87 Difference]: Start difference. First operand 19359 states and 54802 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:59,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:59,194 INFO L93 Difference]: Finished difference Result 30599 states and 84834 transitions. [2022-02-10 22:23:59,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:23:59,195 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:23:59,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:59,253 INFO L225 Difference]: With dead ends: 30599 [2022-02-10 22:23:59,253 INFO L226 Difference]: Without dead ends: 30599 [2022-02-10 22:23:59,254 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=711, Invalid=2829, Unknown=0, NotChecked=0, Total=3540 [2022-02-10 22:23:59,255 INFO L934 BasicCegarLoop]: 913 mSDtfsCounter, 2962 mSDsluCounter, 10979 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2962 SdHoareTripleChecker+Valid, 11743 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:59,255 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2962 Valid, 11743 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:23:59,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30599 states. [2022-02-10 22:23:59,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30599 to 19492. [2022-02-10 22:23:59,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19492 states, 19491 states have (on average 2.826791852649941) internal successors, (55097), 19491 states have internal predecessors, (55097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:59,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19492 states to 19492 states and 55097 transitions. [2022-02-10 22:23:59,792 INFO L78 Accepts]: Start accepts. Automaton has 19492 states and 55097 transitions. Word has length 263 [2022-02-10 22:23:59,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:59,792 INFO L470 AbstractCegarLoop]: Abstraction has 19492 states and 55097 transitions. [2022-02-10 22:23:59,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:59,793 INFO L276 IsEmpty]: Start isEmpty. Operand 19492 states and 55097 transitions. [2022-02-10 22:23:59,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:23:59,820 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:59,821 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:59,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 22:23:59,821 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:59,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:59,821 INFO L85 PathProgramCache]: Analyzing trace with hash 6835089, now seen corresponding path program 7 times [2022-02-10 22:23:59,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:59,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950815511] [2022-02-10 22:23:59,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:59,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:00,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:00,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:00,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950815511] [2022-02-10 22:24:00,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950815511] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:00,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:00,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:00,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034574687] [2022-02-10 22:24:00,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:00,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:00,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:00,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:00,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:00,223 INFO L87 Difference]: Start difference. First operand 19492 states and 55097 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:01,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:01,839 INFO L93 Difference]: Finished difference Result 40438 states and 113348 transitions. [2022-02-10 22:24:01,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:24:01,840 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:01,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:01,921 INFO L225 Difference]: With dead ends: 40438 [2022-02-10 22:24:01,921 INFO L226 Difference]: Without dead ends: 40438 [2022-02-10 22:24:01,922 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=648, Invalid=2658, Unknown=0, NotChecked=0, Total=3306 [2022-02-10 22:24:01,922 INFO L934 BasicCegarLoop]: 816 mSDtfsCounter, 3127 mSDsluCounter, 10721 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3127 SdHoareTripleChecker+Valid, 11395 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:01,922 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3127 Valid, 11395 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:24:01,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40438 states. [2022-02-10 22:24:02,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40438 to 19932. [2022-02-10 22:24:02,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19932 states, 19931 states have (on average 2.8409512819226332) internal successors, (56623), 19931 states have internal predecessors, (56623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:02,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19932 states to 19932 states and 56623 transitions. [2022-02-10 22:24:02,438 INFO L78 Accepts]: Start accepts. Automaton has 19932 states and 56623 transitions. Word has length 263 [2022-02-10 22:24:02,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:02,438 INFO L470 AbstractCegarLoop]: Abstraction has 19932 states and 56623 transitions. [2022-02-10 22:24:02,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:02,438 INFO L276 IsEmpty]: Start isEmpty. Operand 19932 states and 56623 transitions. [2022-02-10 22:24:02,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:02,468 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:02,469 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:02,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-10 22:24:02,469 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:02,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:02,469 INFO L85 PathProgramCache]: Analyzing trace with hash 958804921, now seen corresponding path program 8 times [2022-02-10 22:24:02,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:02,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68992367] [2022-02-10 22:24:02,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:02,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:02,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:02,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:02,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68992367] [2022-02-10 22:24:02,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68992367] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:02,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:02,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:02,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828261432] [2022-02-10 22:24:02,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:02,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:02,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:02,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:02,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:02,842 INFO L87 Difference]: Start difference. First operand 19932 states and 56623 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:04,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:04,533 INFO L93 Difference]: Finished difference Result 41733 states and 117126 transitions. [2022-02-10 22:24:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:24:04,533 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:04,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:04,655 INFO L225 Difference]: With dead ends: 41733 [2022-02-10 22:24:04,655 INFO L226 Difference]: Without dead ends: 41733 [2022-02-10 22:24:04,656 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=748, Invalid=3034, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:24:04,657 INFO L934 BasicCegarLoop]: 889 mSDtfsCounter, 3046 mSDsluCounter, 11518 mSDsCounter, 0 mSdLazyCounter, 2158 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 12286 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:04,657 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3046 Valid, 12286 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2158 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:24:04,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41733 states. [2022-02-10 22:24:05,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41733 to 20444. [2022-02-10 22:24:05,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20444 states, 20443 states have (on average 2.843369368487991) internal successors, (58127), 20443 states have internal predecessors, (58127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:05,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20444 states to 20444 states and 58127 transitions. [2022-02-10 22:24:05,269 INFO L78 Accepts]: Start accepts. Automaton has 20444 states and 58127 transitions. Word has length 263 [2022-02-10 22:24:05,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:05,269 INFO L470 AbstractCegarLoop]: Abstraction has 20444 states and 58127 transitions. [2022-02-10 22:24:05,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:05,269 INFO L276 IsEmpty]: Start isEmpty. Operand 20444 states and 58127 transitions. [2022-02-10 22:24:05,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:05,301 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:05,301 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:05,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-10 22:24:05,301 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:05,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:05,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2051743033, now seen corresponding path program 9 times [2022-02-10 22:24:05,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:05,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799330824] [2022-02-10 22:24:05,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:05,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:05,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:05,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799330824] [2022-02-10 22:24:05,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799330824] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:05,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:05,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:05,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64068100] [2022-02-10 22:24:05,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:05,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:05,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:05,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:05,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:05,732 INFO L87 Difference]: Start difference. First operand 20444 states and 58127 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:07,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:07,118 INFO L93 Difference]: Finished difference Result 27602 states and 77655 transitions. [2022-02-10 22:24:07,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:24:07,118 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:07,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:07,181 INFO L225 Difference]: With dead ends: 27602 [2022-02-10 22:24:07,182 INFO L226 Difference]: Without dead ends: 27602 [2022-02-10 22:24:07,182 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=609, Invalid=2583, Unknown=0, NotChecked=0, Total=3192 [2022-02-10 22:24:07,183 INFO L934 BasicCegarLoop]: 732 mSDtfsCounter, 2802 mSDsluCounter, 9078 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 9713 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:07,183 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2802 Valid, 9713 Invalid, 1835 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:24:07,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27602 states. [2022-02-10 22:24:07,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27602 to 20444. [2022-02-10 22:24:07,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20444 states, 20443 states have (on average 2.843369368487991) internal successors, (58127), 20443 states have internal predecessors, (58127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:07,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20444 states to 20444 states and 58127 transitions. [2022-02-10 22:24:07,595 INFO L78 Accepts]: Start accepts. Automaton has 20444 states and 58127 transitions. Word has length 263 [2022-02-10 22:24:07,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:07,596 INFO L470 AbstractCegarLoop]: Abstraction has 20444 states and 58127 transitions. [2022-02-10 22:24:07,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:07,596 INFO L276 IsEmpty]: Start isEmpty. Operand 20444 states and 58127 transitions. [2022-02-10 22:24:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:07,625 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:07,625 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:07,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-10 22:24:07,625 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:07,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:07,626 INFO L85 PathProgramCache]: Analyzing trace with hash 730362641, now seen corresponding path program 10 times [2022-02-10 22:24:07,626 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:07,626 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673088752] [2022-02-10 22:24:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:07,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:08,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:08,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:08,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673088752] [2022-02-10 22:24:08,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673088752] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:08,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:08,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:08,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846310835] [2022-02-10 22:24:08,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:08,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:08,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:08,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:08,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:08,053 INFO L87 Difference]: Start difference. First operand 20444 states and 58127 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:09,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:09,374 INFO L93 Difference]: Finished difference Result 41224 states and 115926 transitions. [2022-02-10 22:24:09,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-10 22:24:09,374 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:09,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:09,455 INFO L225 Difference]: With dead ends: 41224 [2022-02-10 22:24:09,455 INFO L226 Difference]: Without dead ends: 41224 [2022-02-10 22:24:09,456 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=582, Invalid=2388, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:24:09,457 INFO L934 BasicCegarLoop]: 753 mSDtfsCounter, 3306 mSDsluCounter, 10043 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3306 SdHoareTripleChecker+Valid, 10674 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:09,457 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3306 Valid, 10674 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2021 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:24:09,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41224 states. [2022-02-10 22:24:09,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41224 to 20768. [2022-02-10 22:24:09,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20768 states, 20767 states have (on average 2.8540472865604083) internal successors, (59270), 20767 states have internal predecessors, (59270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:09,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20768 states to 20768 states and 59270 transitions. [2022-02-10 22:24:09,989 INFO L78 Accepts]: Start accepts. Automaton has 20768 states and 59270 transitions. Word has length 263 [2022-02-10 22:24:09,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:09,989 INFO L470 AbstractCegarLoop]: Abstraction has 20768 states and 59270 transitions. [2022-02-10 22:24:09,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:09,989 INFO L276 IsEmpty]: Start isEmpty. Operand 20768 states and 59270 transitions. [2022-02-10 22:24:10,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:10,023 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:10,024 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:10,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-10 22:24:10,024 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:10,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:10,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1682332473, now seen corresponding path program 11 times [2022-02-10 22:24:10,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:10,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016184576] [2022-02-10 22:24:10,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:10,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:10,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:10,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016184576] [2022-02-10 22:24:10,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016184576] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:10,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:10,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:10,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146991886] [2022-02-10 22:24:10,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:10,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:10,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:10,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:10,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:10,368 INFO L87 Difference]: Start difference. First operand 20768 states and 59270 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:11,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:11,958 INFO L93 Difference]: Finished difference Result 42190 states and 118789 transitions. [2022-02-10 22:24:11,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:24:11,958 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:11,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:12,041 INFO L225 Difference]: With dead ends: 42190 [2022-02-10 22:24:12,041 INFO L226 Difference]: Without dead ends: 42190 [2022-02-10 22:24:12,042 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=707, Invalid=2833, Unknown=0, NotChecked=0, Total=3540 [2022-02-10 22:24:12,042 INFO L934 BasicCegarLoop]: 788 mSDtfsCounter, 3100 mSDsluCounter, 10446 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3100 SdHoareTripleChecker+Valid, 11143 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:12,042 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3100 Valid, 11143 Invalid, 2070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:24:12,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42190 states. [2022-02-10 22:24:12,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42190 to 20544. [2022-02-10 22:24:12,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20544 states, 20543 states have (on average 2.8434990020931705) internal successors, (58414), 20543 states have internal predecessors, (58414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20544 states to 20544 states and 58414 transitions. [2022-02-10 22:24:12,544 INFO L78 Accepts]: Start accepts. Automaton has 20544 states and 58414 transitions. Word has length 263 [2022-02-10 22:24:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:12,545 INFO L470 AbstractCegarLoop]: Abstraction has 20544 states and 58414 transitions. [2022-02-10 22:24:12,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:12,545 INFO L276 IsEmpty]: Start isEmpty. Operand 20544 states and 58414 transitions. [2022-02-10 22:24:12,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:12,575 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:12,575 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:12,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-10 22:24:12,576 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:12,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:12,576 INFO L85 PathProgramCache]: Analyzing trace with hash -16355817, now seen corresponding path program 12 times [2022-02-10 22:24:12,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:12,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324537050] [2022-02-10 22:24:12,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:12,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:12,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:12,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:12,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324537050] [2022-02-10 22:24:12,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324537050] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:12,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:12,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:12,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344388444] [2022-02-10 22:24:12,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:12,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:12,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:12,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:12,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:12,928 INFO L87 Difference]: Start difference. First operand 20544 states and 58414 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:14,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:14,069 INFO L93 Difference]: Finished difference Result 26756 states and 75278 transitions. [2022-02-10 22:24:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:14,069 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:14,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:14,119 INFO L225 Difference]: With dead ends: 26756 [2022-02-10 22:24:14,119 INFO L226 Difference]: Without dead ends: 26756 [2022-02-10 22:24:14,120 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=504, Invalid=2148, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:24:14,120 INFO L934 BasicCegarLoop]: 655 mSDtfsCounter, 2814 mSDsluCounter, 8243 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 8797 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:14,120 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2814 Valid, 8797 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:24:14,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26756 states. [2022-02-10 22:24:14,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26756 to 20612. [2022-02-10 22:24:14,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20612 states, 20611 states have (on average 2.842996458201931) internal successors, (58597), 20611 states have internal predecessors, (58597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:14,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20612 states to 20612 states and 58597 transitions. [2022-02-10 22:24:14,480 INFO L78 Accepts]: Start accepts. Automaton has 20612 states and 58597 transitions. Word has length 263 [2022-02-10 22:24:14,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:14,480 INFO L470 AbstractCegarLoop]: Abstraction has 20612 states and 58597 transitions. [2022-02-10 22:24:14,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:14,480 INFO L276 IsEmpty]: Start isEmpty. Operand 20612 states and 58597 transitions. [2022-02-10 22:24:14,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:14,510 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:14,510 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:14,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-10 22:24:14,510 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:14,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:14,511 INFO L85 PathProgramCache]: Analyzing trace with hash 476517939, now seen corresponding path program 13 times [2022-02-10 22:24:14,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:14,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184659181] [2022-02-10 22:24:14,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:14,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:14,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:14,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:14,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184659181] [2022-02-10 22:24:14,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184659181] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:14,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:14,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:14,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905065556] [2022-02-10 22:24:14,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:14,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:14,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:14,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:14,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:14,895 INFO L87 Difference]: Start difference. First operand 20612 states and 58597 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:16,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:16,637 INFO L93 Difference]: Finished difference Result 59802 states and 167802 transitions. [2022-02-10 22:24:16,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:24:16,638 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:16,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:16,773 INFO L225 Difference]: With dead ends: 59802 [2022-02-10 22:24:16,775 INFO L226 Difference]: Without dead ends: 59802 [2022-02-10 22:24:16,776 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=746, Invalid=2914, Unknown=0, NotChecked=0, Total=3660 [2022-02-10 22:24:16,776 INFO L934 BasicCegarLoop]: 966 mSDtfsCounter, 3285 mSDsluCounter, 12479 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3285 SdHoareTripleChecker+Valid, 13275 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:16,777 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3285 Valid, 13275 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:24:16,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59802 states. [2022-02-10 22:24:17,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59802 to 22321. [2022-02-10 22:24:17,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22321 states, 22320 states have (on average 2.8576164874551973) internal successors, (63782), 22320 states have internal predecessors, (63782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:17,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22321 states to 22321 states and 63782 transitions. [2022-02-10 22:24:17,394 INFO L78 Accepts]: Start accepts. Automaton has 22321 states and 63782 transitions. Word has length 263 [2022-02-10 22:24:17,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:17,394 INFO L470 AbstractCegarLoop]: Abstraction has 22321 states and 63782 transitions. [2022-02-10 22:24:17,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:17,395 INFO L276 IsEmpty]: Start isEmpty. Operand 22321 states and 63782 transitions. [2022-02-10 22:24:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:17,428 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:17,428 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:17,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-10 22:24:17,429 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:17,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1428487771, now seen corresponding path program 14 times [2022-02-10 22:24:17,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:17,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515635312] [2022-02-10 22:24:17,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:17,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:17,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:17,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515635312] [2022-02-10 22:24:17,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515635312] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:17,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:17,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:17,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909693190] [2022-02-10 22:24:17,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:17,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:17,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:17,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:17,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:17,809 INFO L87 Difference]: Start difference. First operand 22321 states and 63782 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:19,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:19,707 INFO L93 Difference]: Finished difference Result 59202 states and 166291 transitions. [2022-02-10 22:24:19,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:24:19,707 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:19,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:19,836 INFO L225 Difference]: With dead ends: 59202 [2022-02-10 22:24:19,837 INFO L226 Difference]: Without dead ends: 59202 [2022-02-10 22:24:19,838 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=878, Invalid=3412, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:24:19,838 INFO L934 BasicCegarLoop]: 1062 mSDtfsCounter, 3372 mSDsluCounter, 13316 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3372 SdHoareTripleChecker+Valid, 14229 SdHoareTripleChecker+Invalid, 2497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:19,838 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3372 Valid, 14229 Invalid, 2497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2462 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:24:19,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59202 states. [2022-02-10 22:24:20,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59202 to 22321. [2022-02-10 22:24:20,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22321 states, 22320 states have (on average 2.8576164874551973) internal successors, (63782), 22320 states have internal predecessors, (63782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:20,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22321 states to 22321 states and 63782 transitions. [2022-02-10 22:24:20,935 INFO L78 Accepts]: Start accepts. Automaton has 22321 states and 63782 transitions. Word has length 263 [2022-02-10 22:24:20,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:20,935 INFO L470 AbstractCegarLoop]: Abstraction has 22321 states and 63782 transitions. [2022-02-10 22:24:20,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:20,936 INFO L276 IsEmpty]: Start isEmpty. Operand 22321 states and 63782 transitions. [2022-02-10 22:24:20,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:20,972 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:20,972 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:20,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-10 22:24:20,972 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:20,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:20,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1582060183, now seen corresponding path program 15 times [2022-02-10 22:24:20,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:20,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464902075] [2022-02-10 22:24:20,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:20,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:21,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:21,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:21,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464902075] [2022-02-10 22:24:21,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464902075] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:21,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:21,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:21,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508836310] [2022-02-10 22:24:21,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:21,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:21,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:21,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:21,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:21,363 INFO L87 Difference]: Start difference. First operand 22321 states and 63782 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:22,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:22,870 INFO L93 Difference]: Finished difference Result 46070 states and 129937 transitions. [2022-02-10 22:24:22,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:24:22,870 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:22,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:22,960 INFO L225 Difference]: With dead ends: 46070 [2022-02-10 22:24:22,961 INFO L226 Difference]: Without dead ends: 46070 [2022-02-10 22:24:22,962 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=725, Invalid=2935, Unknown=0, NotChecked=0, Total=3660 [2022-02-10 22:24:22,962 INFO L934 BasicCegarLoop]: 905 mSDtfsCounter, 3124 mSDsluCounter, 10934 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3124 SdHoareTripleChecker+Valid, 11717 SdHoareTripleChecker+Invalid, 2157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:22,962 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3124 Valid, 11717 Invalid, 2157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:24:23,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46070 states. [2022-02-10 22:24:23,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46070 to 22321. [2022-02-10 22:24:23,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22321 states, 22320 states have (on average 2.8576164874551973) internal successors, (63782), 22320 states have internal predecessors, (63782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:23,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22321 states to 22321 states and 63782 transitions. [2022-02-10 22:24:23,778 INFO L78 Accepts]: Start accepts. Automaton has 22321 states and 63782 transitions. Word has length 263 [2022-02-10 22:24:23,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:23,779 INFO L470 AbstractCegarLoop]: Abstraction has 22321 states and 63782 transitions. [2022-02-10 22:24:23,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:23,779 INFO L276 IsEmpty]: Start isEmpty. Operand 22321 states and 63782 transitions. [2022-02-10 22:24:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:23,813 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:23,814 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:23,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-10 22:24:23,814 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:23,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:23,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1622312059, now seen corresponding path program 16 times [2022-02-10 22:24:23,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:23,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557616118] [2022-02-10 22:24:23,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:23,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:24,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:24,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:24,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557616118] [2022-02-10 22:24:24,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557616118] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:24,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:24,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:24,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423495549] [2022-02-10 22:24:24,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:24,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:24,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:24,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:24,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:24,223 INFO L87 Difference]: Start difference. First operand 22321 states and 63782 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:25,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:25,920 INFO L93 Difference]: Finished difference Result 49176 states and 137978 transitions. [2022-02-10 22:24:25,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:24:25,920 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:25,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:26,034 INFO L225 Difference]: With dead ends: 49176 [2022-02-10 22:24:26,034 INFO L226 Difference]: Without dead ends: 49176 [2022-02-10 22:24:26,035 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=724, Invalid=2936, Unknown=0, NotChecked=0, Total=3660 [2022-02-10 22:24:26,035 INFO L934 BasicCegarLoop]: 946 mSDtfsCounter, 2792 mSDsluCounter, 12132 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2792 SdHoareTripleChecker+Valid, 12929 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:26,035 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2792 Valid, 12929 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:24:26,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49176 states. [2022-02-10 22:24:26,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49176 to 22321. [2022-02-10 22:24:26,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22321 states, 22320 states have (on average 2.8576164874551973) internal successors, (63782), 22320 states have internal predecessors, (63782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:26,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22321 states to 22321 states and 63782 transitions. [2022-02-10 22:24:26,686 INFO L78 Accepts]: Start accepts. Automaton has 22321 states and 63782 transitions. Word has length 263 [2022-02-10 22:24:26,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:26,686 INFO L470 AbstractCegarLoop]: Abstraction has 22321 states and 63782 transitions. [2022-02-10 22:24:26,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:26,686 INFO L276 IsEmpty]: Start isEmpty. Operand 22321 states and 63782 transitions. [2022-02-10 22:24:26,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:26,722 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:26,722 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:26,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-10 22:24:26,722 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:26,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:26,723 INFO L85 PathProgramCache]: Analyzing trace with hash 870170709, now seen corresponding path program 17 times [2022-02-10 22:24:26,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:26,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417210553] [2022-02-10 22:24:26,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:26,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:27,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:27,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:27,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417210553] [2022-02-10 22:24:27,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417210553] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:27,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:27,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:27,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651267578] [2022-02-10 22:24:27,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:27,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:27,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:27,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:27,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:27,331 INFO L87 Difference]: Start difference. First operand 22321 states and 63782 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:29,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:29,164 INFO L93 Difference]: Finished difference Result 43648 states and 123045 transitions. [2022-02-10 22:24:29,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:24:29,165 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:29,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:29,247 INFO L225 Difference]: With dead ends: 43648 [2022-02-10 22:24:29,248 INFO L226 Difference]: Without dead ends: 43648 [2022-02-10 22:24:29,248 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=808, Invalid=3224, Unknown=0, NotChecked=0, Total=4032 [2022-02-10 22:24:29,249 INFO L934 BasicCegarLoop]: 951 mSDtfsCounter, 3425 mSDsluCounter, 11496 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3425 SdHoareTripleChecker+Valid, 12275 SdHoareTripleChecker+Invalid, 2337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:29,250 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3425 Valid, 12275 Invalid, 2337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:24:29,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43648 states. [2022-02-10 22:24:29,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43648 to 22749. [2022-02-10 22:24:29,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22749 states, 22748 states have (on average 2.868603833304027) internal successors, (65255), 22748 states have internal predecessors, (65255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:29,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22749 states to 22749 states and 65255 transitions. [2022-02-10 22:24:29,765 INFO L78 Accepts]: Start accepts. Automaton has 22749 states and 65255 transitions. Word has length 263 [2022-02-10 22:24:29,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:29,765 INFO L470 AbstractCegarLoop]: Abstraction has 22749 states and 65255 transitions. [2022-02-10 22:24:29,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:29,765 INFO L276 IsEmpty]: Start isEmpty. Operand 22749 states and 65255 transitions. [2022-02-10 22:24:29,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:29,800 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:29,800 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:29,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-10 22:24:29,801 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:29,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:29,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1822140541, now seen corresponding path program 18 times [2022-02-10 22:24:29,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:29,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677907779] [2022-02-10 22:24:29,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:29,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:30,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:30,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677907779] [2022-02-10 22:24:30,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677907779] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:30,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:30,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:30,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654273666] [2022-02-10 22:24:30,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:30,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:30,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:30,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:30,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:30,183 INFO L87 Difference]: Start difference. First operand 22749 states and 65255 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:32,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:32,042 INFO L93 Difference]: Finished difference Result 46301 states and 130842 transitions. [2022-02-10 22:24:32,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:24:32,042 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:32,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:32,132 INFO L225 Difference]: With dead ends: 46301 [2022-02-10 22:24:32,132 INFO L226 Difference]: Without dead ends: 46301 [2022-02-10 22:24:32,133 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=799, Invalid=3233, Unknown=0, NotChecked=0, Total=4032 [2022-02-10 22:24:32,134 INFO L934 BasicCegarLoop]: 983 mSDtfsCounter, 3301 mSDsluCounter, 12215 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3301 SdHoareTripleChecker+Valid, 13055 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:32,134 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3301 Valid, 13055 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:24:32,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46301 states. [2022-02-10 22:24:32,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46301 to 22449. [2022-02-10 22:24:32,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22449 states, 22448 states have (on average 2.8591411261582325) internal successors, (64182), 22448 states have internal predecessors, (64182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22449 states to 22449 states and 64182 transitions. [2022-02-10 22:24:32,699 INFO L78 Accepts]: Start accepts. Automaton has 22449 states and 64182 transitions. Word has length 263 [2022-02-10 22:24:32,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:32,699 INFO L470 AbstractCegarLoop]: Abstraction has 22449 states and 64182 transitions. [2022-02-10 22:24:32,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:32,700 INFO L276 IsEmpty]: Start isEmpty. Operand 22449 states and 64182 transitions. [2022-02-10 22:24:32,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:32,733 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:32,733 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:32,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-10 22:24:32,733 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:32,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:32,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1188407413, now seen corresponding path program 19 times [2022-02-10 22:24:32,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:32,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962340348] [2022-02-10 22:24:32,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:32,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:33,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:33,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962340348] [2022-02-10 22:24:33,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962340348] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:33,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:33,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:33,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651963848] [2022-02-10 22:24:33,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:33,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:33,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:33,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:33,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:33,123 INFO L87 Difference]: Start difference. First operand 22449 states and 64182 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:34,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:34,729 INFO L93 Difference]: Finished difference Result 46593 states and 131721 transitions. [2022-02-10 22:24:34,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:24:34,729 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:34,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:34,818 INFO L225 Difference]: With dead ends: 46593 [2022-02-10 22:24:34,818 INFO L226 Difference]: Without dead ends: 46593 [2022-02-10 22:24:34,819 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=711, Invalid=2949, Unknown=0, NotChecked=0, Total=3660 [2022-02-10 22:24:34,819 INFO L934 BasicCegarLoop]: 953 mSDtfsCounter, 2979 mSDsluCounter, 11591 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2979 SdHoareTripleChecker+Valid, 12414 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:34,819 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2979 Valid, 12414 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:24:34,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46593 states. [2022-02-10 22:24:35,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46593 to 22449. [2022-02-10 22:24:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22449 states, 22448 states have (on average 2.8591411261582325) internal successors, (64182), 22448 states have internal predecessors, (64182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:35,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22449 states to 22449 states and 64182 transitions. [2022-02-10 22:24:35,398 INFO L78 Accepts]: Start accepts. Automaton has 22449 states and 64182 transitions. Word has length 263 [2022-02-10 22:24:35,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:35,398 INFO L470 AbstractCegarLoop]: Abstraction has 22449 states and 64182 transitions. [2022-02-10 22:24:35,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:35,398 INFO L276 IsEmpty]: Start isEmpty. Operand 22449 states and 64182 transitions. [2022-02-10 22:24:35,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:35,433 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:35,433 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:35,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-10 22:24:35,434 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:35,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:35,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1228659289, now seen corresponding path program 20 times [2022-02-10 22:24:35,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:35,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965176914] [2022-02-10 22:24:35,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:35,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:35,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:35,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965176914] [2022-02-10 22:24:35,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965176914] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:35,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:35,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:35,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706259185] [2022-02-10 22:24:35,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:35,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:35,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:35,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:35,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:35,791 INFO L87 Difference]: Start difference. First operand 22449 states and 64182 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:37,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:37,580 INFO L93 Difference]: Finished difference Result 50423 states and 141736 transitions. [2022-02-10 22:24:37,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:24:37,581 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:37,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:37,694 INFO L225 Difference]: With dead ends: 50423 [2022-02-10 22:24:37,695 INFO L226 Difference]: Without dead ends: 50423 [2022-02-10 22:24:37,695 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=738, Invalid=3044, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:24:37,695 INFO L934 BasicCegarLoop]: 968 mSDtfsCounter, 3406 mSDsluCounter, 11513 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3406 SdHoareTripleChecker+Valid, 12346 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:37,696 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3406 Valid, 12346 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:24:37,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50423 states. [2022-02-10 22:24:38,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50423 to 22449. [2022-02-10 22:24:38,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22449 states, 22448 states have (on average 2.8591411261582325) internal successors, (64182), 22448 states have internal predecessors, (64182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22449 states to 22449 states and 64182 transitions. [2022-02-10 22:24:38,450 INFO L78 Accepts]: Start accepts. Automaton has 22449 states and 64182 transitions. Word has length 263 [2022-02-10 22:24:38,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:38,451 INFO L470 AbstractCegarLoop]: Abstraction has 22449 states and 64182 transitions. [2022-02-10 22:24:38,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 22449 states and 64182 transitions. [2022-02-10 22:24:38,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:38,483 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:38,483 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:38,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-10 22:24:38,483 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:38,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:38,484 INFO L85 PathProgramCache]: Analyzing trace with hash 505163749, now seen corresponding path program 21 times [2022-02-10 22:24:38,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:38,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616381793] [2022-02-10 22:24:38,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:38,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:38,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:38,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:38,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616381793] [2022-02-10 22:24:38,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616381793] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:38,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:38,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-10 22:24:38,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314765892] [2022-02-10 22:24:38,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:38,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-10 22:24:38,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:38,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-10 22:24:38,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:24:38,838 INFO L87 Difference]: Start difference. First operand 22449 states and 64182 transitions. Second operand has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:40,209 INFO L93 Difference]: Finished difference Result 30092 states and 84724 transitions. [2022-02-10 22:24:40,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:24:40,211 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:40,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:40,274 INFO L225 Difference]: With dead ends: 30092 [2022-02-10 22:24:40,274 INFO L226 Difference]: Without dead ends: 30092 [2022-02-10 22:24:40,275 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=597, Invalid=2595, Unknown=0, NotChecked=0, Total=3192 [2022-02-10 22:24:40,275 INFO L934 BasicCegarLoop]: 815 mSDtfsCounter, 2595 mSDsluCounter, 10055 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2595 SdHoareTripleChecker+Valid, 10740 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:40,275 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2595 Valid, 10740 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:24:40,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30092 states. [2022-02-10 22:24:40,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30092 to 22512. [2022-02-10 22:24:40,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22512 states, 22511 states have (on average 2.8585580382923905) internal successors, (64349), 22511 states have internal predecessors, (64349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:40,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22512 states to 22512 states and 64349 transitions. [2022-02-10 22:24:40,705 INFO L78 Accepts]: Start accepts. Automaton has 22512 states and 64349 transitions. Word has length 263 [2022-02-10 22:24:40,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:40,705 INFO L470 AbstractCegarLoop]: Abstraction has 22512 states and 64349 transitions. [2022-02-10 22:24:40,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.52) internal successors, (263), 25 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:40,705 INFO L276 IsEmpty]: Start isEmpty. Operand 22512 states and 64349 transitions. [2022-02-10 22:24:40,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:40,748 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:40,748 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:40,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-10 22:24:40,749 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:40,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:40,749 INFO L85 PathProgramCache]: Analyzing trace with hash -2112004153, now seen corresponding path program 22 times [2022-02-10 22:24:40,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:40,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004256572] [2022-02-10 22:24:40,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:40,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:40,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:40,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:40,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004256572] [2022-02-10 22:24:40,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004256572] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:40,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:40,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:24:40,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243704460] [2022-02-10 22:24:40,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:40,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:24:40,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:40,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:24:40,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:24:40,951 INFO L87 Difference]: Start difference. First operand 22512 states and 64349 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:42,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:42,391 INFO L93 Difference]: Finished difference Result 61037 states and 171879 transitions. [2022-02-10 22:24:42,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:24:42,392 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:42,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:42,521 INFO L225 Difference]: With dead ends: 61037 [2022-02-10 22:24:42,521 INFO L226 Difference]: Without dead ends: 61037 [2022-02-10 22:24:42,522 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=655, Invalid=2315, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:24:42,522 INFO L934 BasicCegarLoop]: 955 mSDtfsCounter, 3138 mSDsluCounter, 8409 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3138 SdHoareTripleChecker+Valid, 9226 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:42,523 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3138 Valid, 9226 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:24:42,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61037 states. [2022-02-10 22:24:43,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61037 to 22908. [2022-02-10 22:24:43,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22908 states, 22907 states have (on average 2.869952416291963) internal successors, (65742), 22907 states have internal predecessors, (65742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:43,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22908 states to 22908 states and 65742 transitions. [2022-02-10 22:24:43,289 INFO L78 Accepts]: Start accepts. Automaton has 22908 states and 65742 transitions. Word has length 263 [2022-02-10 22:24:43,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:43,289 INFO L470 AbstractCegarLoop]: Abstraction has 22908 states and 65742 transitions. [2022-02-10 22:24:43,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:43,290 INFO L276 IsEmpty]: Start isEmpty. Operand 22908 states and 65742 transitions. [2022-02-10 22:24:43,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:43,325 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:43,325 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:43,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-10 22:24:43,325 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:43,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:43,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1160034321, now seen corresponding path program 23 times [2022-02-10 22:24:43,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:43,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702087220] [2022-02-10 22:24:43,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:43,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:43,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:43,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:43,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702087220] [2022-02-10 22:24:43,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702087220] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:43,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:43,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:24:43,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001826872] [2022-02-10 22:24:43,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:43,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:24:43,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:43,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:24:43,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:24:43,529 INFO L87 Difference]: Start difference. First operand 22908 states and 65742 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:45,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:45,041 INFO L93 Difference]: Finished difference Result 60962 states and 171964 transitions. [2022-02-10 22:24:45,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:24:45,041 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:45,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:45,173 INFO L225 Difference]: With dead ends: 60962 [2022-02-10 22:24:45,174 INFO L226 Difference]: Without dead ends: 60962 [2022-02-10 22:24:45,174 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=666, Invalid=2414, Unknown=0, NotChecked=0, Total=3080 [2022-02-10 22:24:45,174 INFO L934 BasicCegarLoop]: 970 mSDtfsCounter, 3172 mSDsluCounter, 9399 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3172 SdHoareTripleChecker+Valid, 10259 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:45,174 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3172 Valid, 10259 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:24:45,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60962 states. [2022-02-10 22:24:45,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60962 to 22580. [2022-02-10 22:24:45,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22580 states, 22579 states have (on average 2.858762566987023) internal successors, (64548), 22579 states have internal predecessors, (64548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:45,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22580 states to 22580 states and 64548 transitions. [2022-02-10 22:24:45,938 INFO L78 Accepts]: Start accepts. Automaton has 22580 states and 64548 transitions. Word has length 263 [2022-02-10 22:24:45,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:45,939 INFO L470 AbstractCegarLoop]: Abstraction has 22580 states and 64548 transitions. [2022-02-10 22:24:45,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:45,939 INFO L276 IsEmpty]: Start isEmpty. Operand 22580 states and 64548 transitions. [2022-02-10 22:24:45,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:45,975 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:45,975 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:45,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-10 22:24:45,975 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:45,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:45,975 INFO L85 PathProgramCache]: Analyzing trace with hash 124385021, now seen corresponding path program 24 times [2022-02-10 22:24:45,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:45,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882317338] [2022-02-10 22:24:45,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:45,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:46,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:46,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882317338] [2022-02-10 22:24:46,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882317338] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:46,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:46,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:24:46,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690719920] [2022-02-10 22:24:46,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:46,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:24:46,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:46,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:24:46,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:24:46,176 INFO L87 Difference]: Start difference. First operand 22580 states and 64548 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:47,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:47,298 INFO L93 Difference]: Finished difference Result 45506 states and 128438 transitions. [2022-02-10 22:24:47,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:24:47,298 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:47,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:47,384 INFO L225 Difference]: With dead ends: 45506 [2022-02-10 22:24:47,385 INFO L226 Difference]: Without dead ends: 45506 [2022-02-10 22:24:47,385 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=576, Invalid=2076, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:24:47,386 INFO L934 BasicCegarLoop]: 818 mSDtfsCounter, 2572 mSDsluCounter, 7296 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 8022 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:47,386 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2572 Valid, 8022 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:24:47,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45506 states. [2022-02-10 22:24:48,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45506 to 22580. [2022-02-10 22:24:48,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22580 states, 22579 states have (on average 2.858762566987023) internal successors, (64548), 22579 states have internal predecessors, (64548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:48,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22580 states to 22580 states and 64548 transitions. [2022-02-10 22:24:48,139 INFO L78 Accepts]: Start accepts. Automaton has 22580 states and 64548 transitions. Word has length 263 [2022-02-10 22:24:48,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:48,140 INFO L470 AbstractCegarLoop]: Abstraction has 22580 states and 64548 transitions. [2022-02-10 22:24:48,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:48,140 INFO L276 IsEmpty]: Start isEmpty. Operand 22580 states and 64548 transitions. [2022-02-10 22:24:48,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:48,202 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:48,202 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:48,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-10 22:24:48,203 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:48,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:48,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1388476601, now seen corresponding path program 25 times [2022-02-10 22:24:48,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:48,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37310013] [2022-02-10 22:24:48,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:48,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:48,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:48,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37310013] [2022-02-10 22:24:48,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37310013] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:48,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:48,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:24:48,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257899217] [2022-02-10 22:24:48,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:48,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:24:48,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:48,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:24:48,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:24:48,527 INFO L87 Difference]: Start difference. First operand 22580 states and 64548 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:50,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:50,118 INFO L93 Difference]: Finished difference Result 61268 states and 172545 transitions. [2022-02-10 22:24:50,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:24:50,118 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:50,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:50,249 INFO L225 Difference]: With dead ends: 61268 [2022-02-10 22:24:50,249 INFO L226 Difference]: Without dead ends: 61268 [2022-02-10 22:24:50,250 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=693, Invalid=2499, Unknown=0, NotChecked=0, Total=3192 [2022-02-10 22:24:50,250 INFO L934 BasicCegarLoop]: 939 mSDtfsCounter, 3059 mSDsluCounter, 9281 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 10086 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:50,250 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3059 Valid, 10086 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:24:50,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61268 states. [2022-02-10 22:24:50,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61268 to 22940. [2022-02-10 22:24:50,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22940 states, 22939 states have (on average 2.8703082087274945) internal successors, (65842), 22939 states have internal predecessors, (65842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:50,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22940 states to 22940 states and 65842 transitions. [2022-02-10 22:24:50,974 INFO L78 Accepts]: Start accepts. Automaton has 22940 states and 65842 transitions. Word has length 263 [2022-02-10 22:24:50,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:50,975 INFO L470 AbstractCegarLoop]: Abstraction has 22940 states and 65842 transitions. [2022-02-10 22:24:50,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:50,975 INFO L276 IsEmpty]: Start isEmpty. Operand 22940 states and 65842 transitions. [2022-02-10 22:24:51,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:51,016 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:51,016 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:51,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-10 22:24:51,016 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:51,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:51,017 INFO L85 PathProgramCache]: Analyzing trace with hash -436506769, now seen corresponding path program 26 times [2022-02-10 22:24:51,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:51,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166125479] [2022-02-10 22:24:51,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:51,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:51,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:51,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:51,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166125479] [2022-02-10 22:24:51,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166125479] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:51,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:51,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:24:51,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110522123] [2022-02-10 22:24:51,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:51,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:24:51,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:51,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:24:51,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:24:51,217 INFO L87 Difference]: Start difference. First operand 22940 states and 65842 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:52,819 INFO L93 Difference]: Finished difference Result 60996 states and 172066 transitions. [2022-02-10 22:24:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:24:52,819 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:52,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:52,960 INFO L225 Difference]: With dead ends: 60996 [2022-02-10 22:24:52,960 INFO L226 Difference]: Without dead ends: 60996 [2022-02-10 22:24:52,961 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=736, Invalid=2686, Unknown=0, NotChecked=0, Total=3422 [2022-02-10 22:24:52,961 INFO L934 BasicCegarLoop]: 933 mSDtfsCounter, 2982 mSDsluCounter, 8646 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2982 SdHoareTripleChecker+Valid, 9491 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:52,961 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2982 Valid, 9491 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:24:53,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60996 states. [2022-02-10 22:24:53,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60996 to 22616. [2022-02-10 22:24:53,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22616 states, 22615 states have (on average 2.8592969268184834) internal successors, (64663), 22615 states have internal predecessors, (64663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:53,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22616 states to 22616 states and 64663 transitions. [2022-02-10 22:24:53,719 INFO L78 Accepts]: Start accepts. Automaton has 22616 states and 64663 transitions. Word has length 263 [2022-02-10 22:24:53,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:53,720 INFO L470 AbstractCegarLoop]: Abstraction has 22616 states and 64663 transitions. [2022-02-10 22:24:53,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:53,720 INFO L276 IsEmpty]: Start isEmpty. Operand 22616 states and 64663 transitions. [2022-02-10 22:24:53,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:53,752 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:53,753 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:53,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-10 22:24:53,753 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:53,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:53,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2135195059, now seen corresponding path program 27 times [2022-02-10 22:24:53,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:53,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934565205] [2022-02-10 22:24:53,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:53,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:53,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:53,949 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:53,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934565205] [2022-02-10 22:24:53,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934565205] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:53,949 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:53,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:24:53,949 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940772821] [2022-02-10 22:24:53,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:53,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:24:53,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:53,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:24:53,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:24:53,950 INFO L87 Difference]: Start difference. First operand 22616 states and 64663 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:55,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:55,250 INFO L93 Difference]: Finished difference Result 46480 states and 131072 transitions. [2022-02-10 22:24:55,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:24:55,251 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:55,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:55,346 INFO L225 Difference]: With dead ends: 46480 [2022-02-10 22:24:55,346 INFO L226 Difference]: Without dead ends: 46480 [2022-02-10 22:24:55,347 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=569, Invalid=2083, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:24:55,347 INFO L934 BasicCegarLoop]: 837 mSDtfsCounter, 2397 mSDsluCounter, 8232 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 8947 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:55,347 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2397 Valid, 8947 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:24:55,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46480 states. [2022-02-10 22:24:55,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46480 to 22676. [2022-02-10 22:24:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22676 states, 22675 states have (on average 2.8588313120176405) internal successors, (64824), 22675 states have internal predecessors, (64824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:56,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22676 states to 22676 states and 64824 transitions. [2022-02-10 22:24:56,041 INFO L78 Accepts]: Start accepts. Automaton has 22676 states and 64824 transitions. Word has length 263 [2022-02-10 22:24:56,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:56,042 INFO L470 AbstractCegarLoop]: Abstraction has 22676 states and 64824 transitions. [2022-02-10 22:24:56,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:56,042 INFO L276 IsEmpty]: Start isEmpty. Operand 22676 states and 64824 transitions. [2022-02-10 22:24:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:56,079 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:56,079 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:56,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-10 22:24:56,080 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:56,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:56,080 INFO L85 PathProgramCache]: Analyzing trace with hash 990241513, now seen corresponding path program 28 times [2022-02-10 22:24:56,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:56,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299078450] [2022-02-10 22:24:56,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:56,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:56,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:56,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299078450] [2022-02-10 22:24:56,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299078450] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:56,302 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:56,302 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:24:56,302 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007037078] [2022-02-10 22:24:56,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:56,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:24:56,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:56,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:24:56,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:24:56,303 INFO L87 Difference]: Start difference. First operand 22676 states and 64824 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:58,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:58,003 INFO L93 Difference]: Finished difference Result 61028 states and 171893 transitions. [2022-02-10 22:24:58,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:24:58,004 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:24:58,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:58,143 INFO L225 Difference]: With dead ends: 61028 [2022-02-10 22:24:58,143 INFO L226 Difference]: Without dead ends: 61028 [2022-02-10 22:24:58,143 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=839, Invalid=2943, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:24:58,144 INFO L934 BasicCegarLoop]: 1003 mSDtfsCounter, 3867 mSDsluCounter, 9302 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3867 SdHoareTripleChecker+Valid, 10155 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:58,144 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3867 Valid, 10155 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:24:58,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61028 states. [2022-02-10 22:24:58,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61028 to 23108. [2022-02-10 22:24:58,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23108 states, 23107 states have (on average 2.8713376898775262) internal successors, (66348), 23107 states have internal predecessors, (66348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:58,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23108 states to 23108 states and 66348 transitions. [2022-02-10 22:24:58,991 INFO L78 Accepts]: Start accepts. Automaton has 23108 states and 66348 transitions. Word has length 263 [2022-02-10 22:24:58,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:58,991 INFO L470 AbstractCegarLoop]: Abstraction has 23108 states and 66348 transitions. [2022-02-10 22:24:58,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:58,991 INFO L276 IsEmpty]: Start isEmpty. Operand 23108 states and 66348 transitions. [2022-02-10 22:24:59,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:24:59,026 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:59,026 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:59,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-10 22:24:59,027 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:59,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:59,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1942211345, now seen corresponding path program 29 times [2022-02-10 22:24:59,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:59,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097381406] [2022-02-10 22:24:59,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:59,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:59,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:59,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097381406] [2022-02-10 22:24:59,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097381406] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:59,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:59,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:24:59,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119200791] [2022-02-10 22:24:59,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:59,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:24:59,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:59,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:24:59,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:24:59,248 INFO L87 Difference]: Start difference. First operand 23108 states and 66348 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:00,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:00,872 INFO L93 Difference]: Finished difference Result 60756 states and 171414 transitions. [2022-02-10 22:25:00,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:25:00,872 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:00,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:01,001 INFO L225 Difference]: With dead ends: 60756 [2022-02-10 22:25:01,002 INFO L226 Difference]: Without dead ends: 60756 [2022-02-10 22:25:01,002 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=834, Invalid=2948, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:25:01,002 INFO L934 BasicCegarLoop]: 980 mSDtfsCounter, 3633 mSDsluCounter, 8914 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3633 SdHoareTripleChecker+Valid, 9795 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:01,003 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3633 Valid, 9795 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1818 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:25:01,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60756 states. [2022-02-10 22:25:01,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60756 to 22908. [2022-02-10 22:25:01,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22908 states, 22907 states have (on average 2.8593006504561926) internal successors, (65498), 22907 states have internal predecessors, (65498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:01,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22908 states to 22908 states and 65498 transitions. [2022-02-10 22:25:01,758 INFO L78 Accepts]: Start accepts. Automaton has 22908 states and 65498 transitions. Word has length 263 [2022-02-10 22:25:01,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:01,759 INFO L470 AbstractCegarLoop]: Abstraction has 22908 states and 65498 transitions. [2022-02-10 22:25:01,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:01,759 INFO L276 IsEmpty]: Start isEmpty. Operand 22908 states and 65498 transitions. [2022-02-10 22:25:01,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:01,795 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:01,795 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:01,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-10 22:25:01,795 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:01,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:01,796 INFO L85 PathProgramCache]: Analyzing trace with hash 243523055, now seen corresponding path program 30 times [2022-02-10 22:25:01,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:01,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991296523] [2022-02-10 22:25:01,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:01,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:01,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:01,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991296523] [2022-02-10 22:25:01,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991296523] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:01,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:01,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:01,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527081478] [2022-02-10 22:25:01,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:01,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:01,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:01,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:01,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:01,997 INFO L87 Difference]: Start difference. First operand 22908 states and 65498 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:03,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:03,463 INFO L93 Difference]: Finished difference Result 46696 states and 131670 transitions. [2022-02-10 22:25:03,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:25:03,463 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:03,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:03,552 INFO L225 Difference]: With dead ends: 46696 [2022-02-10 22:25:03,552 INFO L226 Difference]: Without dead ends: 46696 [2022-02-10 22:25:03,552 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=701, Invalid=2491, Unknown=0, NotChecked=0, Total=3192 [2022-02-10 22:25:03,552 INFO L934 BasicCegarLoop]: 902 mSDtfsCounter, 2851 mSDsluCounter, 8565 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2851 SdHoareTripleChecker+Valid, 9323 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:03,553 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2851 Valid, 9323 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:25:03,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46696 states. [2022-02-10 22:25:03,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46696 to 22876. [2022-02-10 22:25:04,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22876 states, 22875 states have (on average 2.8589289617486338) internal successors, (65398), 22875 states have internal predecessors, (65398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:04,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22876 states to 22876 states and 65398 transitions. [2022-02-10 22:25:04,232 INFO L78 Accepts]: Start accepts. Automaton has 22876 states and 65398 transitions. Word has length 263 [2022-02-10 22:25:04,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:04,233 INFO L470 AbstractCegarLoop]: Abstraction has 22876 states and 65398 transitions. [2022-02-10 22:25:04,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:04,233 INFO L276 IsEmpty]: Start isEmpty. Operand 22876 states and 65398 transitions. [2022-02-10 22:25:04,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:04,261 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:04,261 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:04,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-10 22:25:04,261 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:04,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:04,262 INFO L85 PathProgramCache]: Analyzing trace with hash -361870581, now seen corresponding path program 31 times [2022-02-10 22:25:04,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:04,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508446307] [2022-02-10 22:25:04,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:04,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:04,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:04,464 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:04,464 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508446307] [2022-02-10 22:25:04,464 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508446307] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:04,464 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:04,464 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:04,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015245952] [2022-02-10 22:25:04,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:04,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:04,465 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:04,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:04,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:04,465 INFO L87 Difference]: Start difference. First operand 22876 states and 65398 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:05,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:05,863 INFO L93 Difference]: Finished difference Result 50706 states and 142441 transitions. [2022-02-10 22:25:05,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-10 22:25:05,864 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:05,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:05,981 INFO L225 Difference]: With dead ends: 50706 [2022-02-10 22:25:05,981 INFO L226 Difference]: Without dead ends: 50706 [2022-02-10 22:25:05,982 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=730, Invalid=2576, Unknown=0, NotChecked=0, Total=3306 [2022-02-10 22:25:05,982 INFO L934 BasicCegarLoop]: 931 mSDtfsCounter, 3029 mSDsluCounter, 9068 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 9841 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:05,982 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3029 Valid, 9841 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:25:06,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50706 states. [2022-02-10 22:25:06,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50706 to 22996. [2022-02-10 22:25:06,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22996 states, 22995 states have (on average 2.858012611437269) internal successors, (65720), 22995 states have internal predecessors, (65720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:06,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22996 states to 22996 states and 65720 transitions. [2022-02-10 22:25:06,629 INFO L78 Accepts]: Start accepts. Automaton has 22996 states and 65720 transitions. Word has length 263 [2022-02-10 22:25:06,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:06,630 INFO L470 AbstractCegarLoop]: Abstraction has 22996 states and 65720 transitions. [2022-02-10 22:25:06,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:06,630 INFO L276 IsEmpty]: Start isEmpty. Operand 22996 states and 65720 transitions. [2022-02-10 22:25:06,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:06,663 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:06,664 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:06,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-10 22:25:06,664 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:06,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:06,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1637279673, now seen corresponding path program 32 times [2022-02-10 22:25:06,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:06,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420276254] [2022-02-10 22:25:06,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:06,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:06,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:06,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:06,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420276254] [2022-02-10 22:25:06,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420276254] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:06,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:06,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:06,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201051448] [2022-02-10 22:25:06,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:06,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:06,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:06,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:06,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:06,862 INFO L87 Difference]: Start difference. First operand 22996 states and 65720 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:08,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:08,485 INFO L93 Difference]: Finished difference Result 62065 states and 174742 transitions. [2022-02-10 22:25:08,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:25:08,485 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:08,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:08,620 INFO L225 Difference]: With dead ends: 62065 [2022-02-10 22:25:08,620 INFO L226 Difference]: Without dead ends: 62065 [2022-02-10 22:25:08,621 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=693, Invalid=2499, Unknown=0, NotChecked=0, Total=3192 [2022-02-10 22:25:08,621 INFO L934 BasicCegarLoop]: 941 mSDtfsCounter, 3267 mSDsluCounter, 8258 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3267 SdHoareTripleChecker+Valid, 9073 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:08,621 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3267 Valid, 9073 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:25:08,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62065 states. [2022-02-10 22:25:09,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62065 to 23368. [2022-02-10 22:25:09,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23368 states, 23367 states have (on average 2.86930286301194) internal successors, (67047), 23367 states have internal predecessors, (67047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:09,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23368 states to 23368 states and 67047 transitions. [2022-02-10 22:25:09,365 INFO L78 Accepts]: Start accepts. Automaton has 23368 states and 67047 transitions. Word has length 263 [2022-02-10 22:25:09,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:09,365 INFO L470 AbstractCegarLoop]: Abstraction has 23368 states and 67047 transitions. [2022-02-10 22:25:09,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:09,365 INFO L276 IsEmpty]: Start isEmpty. Operand 23368 states and 67047 transitions. [2022-02-10 22:25:09,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:09,402 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:09,402 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:09,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-10 22:25:09,403 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:09,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:09,403 INFO L85 PathProgramCache]: Analyzing trace with hash -685309841, now seen corresponding path program 33 times [2022-02-10 22:25:09,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:09,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043552088] [2022-02-10 22:25:09,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:09,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:09,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:09,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:09,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043552088] [2022-02-10 22:25:09,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043552088] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:09,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:09,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:09,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477228320] [2022-02-10 22:25:09,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:09,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:09,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:09,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:09,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:09,627 INFO L87 Difference]: Start difference. First operand 23368 states and 67047 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:11,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:11,334 INFO L93 Difference]: Finished difference Result 61990 states and 174827 transitions. [2022-02-10 22:25:11,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:25:11,334 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:11,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:11,478 INFO L225 Difference]: With dead ends: 61990 [2022-02-10 22:25:11,478 INFO L226 Difference]: Without dead ends: 61990 [2022-02-10 22:25:11,479 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=736, Invalid=2686, Unknown=0, NotChecked=0, Total=3422 [2022-02-10 22:25:11,479 INFO L934 BasicCegarLoop]: 989 mSDtfsCounter, 2739 mSDsluCounter, 9743 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2739 SdHoareTripleChecker+Valid, 10627 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:11,479 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2739 Valid, 10627 Invalid, 1943 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [27 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:25:11,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61990 states. [2022-02-10 22:25:12,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61990 to 23040. [2022-02-10 22:25:12,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23040 states, 23039 states have (on average 2.858327184339598) internal successors, (65853), 23039 states have internal predecessors, (65853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:12,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23040 states to 23040 states and 65853 transitions. [2022-02-10 22:25:12,216 INFO L78 Accepts]: Start accepts. Automaton has 23040 states and 65853 transitions. Word has length 263 [2022-02-10 22:25:12,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:12,216 INFO L470 AbstractCegarLoop]: Abstraction has 23040 states and 65853 transitions. [2022-02-10 22:25:12,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:12,217 INFO L276 IsEmpty]: Start isEmpty. Operand 23040 states and 65853 transitions. [2022-02-10 22:25:12,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:12,256 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:12,256 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:12,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-10 22:25:12,256 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:12,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:12,256 INFO L85 PathProgramCache]: Analyzing trace with hash 599109501, now seen corresponding path program 34 times [2022-02-10 22:25:12,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:12,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241883518] [2022-02-10 22:25:12,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:12,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:12,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:12,464 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241883518] [2022-02-10 22:25:12,464 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241883518] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:12,464 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:12,464 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:25:12,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290025107] [2022-02-10 22:25:12,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:12,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:25:12,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:12,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:25:12,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:25:12,465 INFO L87 Difference]: Start difference. First operand 23040 states and 65853 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:13,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:13,754 INFO L93 Difference]: Finished difference Result 46534 states and 131301 transitions. [2022-02-10 22:25:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:25:13,755 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:13,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:13,842 INFO L225 Difference]: With dead ends: 46534 [2022-02-10 22:25:13,842 INFO L226 Difference]: Without dead ends: 46534 [2022-02-10 22:25:13,842 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=596, Invalid=2160, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:25:13,843 INFO L934 BasicCegarLoop]: 835 mSDtfsCounter, 2477 mSDsluCounter, 7373 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 8121 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:13,843 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2477 Valid, 8121 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:25:13,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46534 states. [2022-02-10 22:25:14,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46534 to 23008. [2022-02-10 22:25:14,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23008 states, 23007 states have (on average 2.8579562741774245) internal successors, (65753), 23007 states have internal predecessors, (65753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:14,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23008 states to 23008 states and 65753 transitions. [2022-02-10 22:25:14,430 INFO L78 Accepts]: Start accepts. Automaton has 23008 states and 65753 transitions. Word has length 263 [2022-02-10 22:25:14,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:14,431 INFO L470 AbstractCegarLoop]: Abstraction has 23008 states and 65753 transitions. [2022-02-10 22:25:14,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:14,431 INFO L276 IsEmpty]: Start isEmpty. Operand 23008 states and 65753 transitions. [2022-02-10 22:25:14,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:14,466 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:14,466 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:14,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-10 22:25:14,467 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:14,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:14,467 INFO L85 PathProgramCache]: Analyzing trace with hash -913752121, now seen corresponding path program 35 times [2022-02-10 22:25:14,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:14,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637417913] [2022-02-10 22:25:14,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:14,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:14,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:14,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:14,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637417913] [2022-02-10 22:25:14,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637417913] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:14,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:14,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:14,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331593308] [2022-02-10 22:25:14,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:14,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:14,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:14,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:14,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:14,784 INFO L87 Difference]: Start difference. First operand 23008 states and 65753 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:16,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:16,182 INFO L93 Difference]: Finished difference Result 62220 states and 175171 transitions. [2022-02-10 22:25:16,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:25:16,183 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:16,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:16,322 INFO L225 Difference]: With dead ends: 62220 [2022-02-10 22:25:16,322 INFO L226 Difference]: Without dead ends: 62220 [2022-02-10 22:25:16,323 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2237, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:25:16,323 INFO L934 BasicCegarLoop]: 923 mSDtfsCounter, 3413 mSDsluCounter, 8043 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3413 SdHoareTripleChecker+Valid, 8853 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:16,323 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3413 Valid, 8853 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:25:16,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62220 states. [2022-02-10 22:25:16,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62220 to 23368. [2022-02-10 22:25:16,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23368 states, 23367 states have (on average 2.86930286301194) internal successors, (67047), 23367 states have internal predecessors, (67047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23368 states to 23368 states and 67047 transitions. [2022-02-10 22:25:17,132 INFO L78 Accepts]: Start accepts. Automaton has 23368 states and 67047 transitions. Word has length 263 [2022-02-10 22:25:17,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:17,132 INFO L470 AbstractCegarLoop]: Abstraction has 23368 states and 67047 transitions. [2022-02-10 22:25:17,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:17,133 INFO L276 IsEmpty]: Start isEmpty. Operand 23368 states and 67047 transitions. [2022-02-10 22:25:17,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:17,167 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:17,167 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:17,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-10 22:25:17,167 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:17,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:17,168 INFO L85 PathProgramCache]: Analyzing trace with hash 38217711, now seen corresponding path program 36 times [2022-02-10 22:25:17,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:17,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356030389] [2022-02-10 22:25:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:17,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:17,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:17,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:17,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356030389] [2022-02-10 22:25:17,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356030389] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:17,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:17,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:17,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143238417] [2022-02-10 22:25:17,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:17,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:17,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:17,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:17,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:17,394 INFO L87 Difference]: Start difference. First operand 23368 states and 67047 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:18,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:18,833 INFO L93 Difference]: Finished difference Result 61888 states and 174531 transitions. [2022-02-10 22:25:18,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-10 22:25:18,835 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:18,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:18,960 INFO L225 Difference]: With dead ends: 61888 [2022-02-10 22:25:18,960 INFO L226 Difference]: Without dead ends: 61888 [2022-02-10 22:25:18,960 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=719, Invalid=2587, Unknown=0, NotChecked=0, Total=3306 [2022-02-10 22:25:18,961 INFO L934 BasicCegarLoop]: 950 mSDtfsCounter, 3248 mSDsluCounter, 8445 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 9316 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:18,961 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3248 Valid, 9316 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:25:19,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61888 states. [2022-02-10 22:25:19,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61888 to 23040. [2022-02-10 22:25:19,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23040 states, 23039 states have (on average 2.858327184339598) internal successors, (65853), 23039 states have internal predecessors, (65853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:19,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23040 states to 23040 states and 65853 transitions. [2022-02-10 22:25:19,742 INFO L78 Accepts]: Start accepts. Automaton has 23040 states and 65853 transitions. Word has length 263 [2022-02-10 22:25:19,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:19,742 INFO L470 AbstractCegarLoop]: Abstraction has 23040 states and 65853 transitions. [2022-02-10 22:25:19,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:19,743 INFO L276 IsEmpty]: Start isEmpty. Operand 23040 states and 65853 transitions. [2022-02-10 22:25:19,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:19,775 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:19,775 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:19,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-10 22:25:19,775 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:19,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:19,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1660470579, now seen corresponding path program 37 times [2022-02-10 22:25:19,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:19,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264769732] [2022-02-10 22:25:19,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:19,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:19,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:19,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264769732] [2022-02-10 22:25:19,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264769732] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:19,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:19,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:25:19,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742368336] [2022-02-10 22:25:19,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:19,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:25:19,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:19,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:25:19,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:25:19,955 INFO L87 Difference]: Start difference. First operand 23040 states and 65853 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:21,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:21,136 INFO L93 Difference]: Finished difference Result 47488 states and 133848 transitions. [2022-02-10 22:25:21,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:25:21,137 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:21,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:21,234 INFO L225 Difference]: With dead ends: 47488 [2022-02-10 22:25:21,235 INFO L226 Difference]: Without dead ends: 47488 [2022-02-10 22:25:21,235 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=539, Invalid=1911, Unknown=0, NotChecked=0, Total=2450 [2022-02-10 22:25:21,235 INFO L934 BasicCegarLoop]: 823 mSDtfsCounter, 2473 mSDsluCounter, 7099 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2473 SdHoareTripleChecker+Valid, 7818 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:21,235 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2473 Valid, 7818 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:25:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47488 states. [2022-02-10 22:25:21,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47488 to 23004. [2022-02-10 22:25:21,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23004 states, 23003 states have (on average 2.857975046733035) internal successors, (65742), 23003 states have internal predecessors, (65742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:21,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23004 states to 23004 states and 65742 transitions. [2022-02-10 22:25:21,898 INFO L78 Accepts]: Start accepts. Automaton has 23004 states and 65742 transitions. Word has length 263 [2022-02-10 22:25:21,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:21,898 INFO L470 AbstractCegarLoop]: Abstraction has 23004 states and 65742 transitions. [2022-02-10 22:25:21,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:21,898 INFO L276 IsEmpty]: Start isEmpty. Operand 23004 states and 65742 transitions. [2022-02-10 22:25:21,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:21,934 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:21,934 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:21,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-10 22:25:21,935 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:21,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:21,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1167596823, now seen corresponding path program 38 times [2022-02-10 22:25:21,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:21,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477387091] [2022-02-10 22:25:21,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:21,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:22,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:22,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:22,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477387091] [2022-02-10 22:25:22,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477387091] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:22,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:22,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:25:22,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524037734] [2022-02-10 22:25:22,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:22,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:25:22,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:22,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:25:22,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:25:22,163 INFO L87 Difference]: Start difference. First operand 23004 states and 65742 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:23,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:23,946 INFO L93 Difference]: Finished difference Result 78504 states and 220912 transitions. [2022-02-10 22:25:23,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:25:23,946 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:23,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:24,117 INFO L225 Difference]: With dead ends: 78504 [2022-02-10 22:25:24,118 INFO L226 Difference]: Without dead ends: 78504 [2022-02-10 22:25:24,118 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=821, Invalid=2839, Unknown=0, NotChecked=0, Total=3660 [2022-02-10 22:25:24,118 INFO L934 BasicCegarLoop]: 1086 mSDtfsCounter, 3134 mSDsluCounter, 9156 mSDsCounter, 0 mSdLazyCounter, 1936 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3134 SdHoareTripleChecker+Valid, 10097 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:24,118 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3134 Valid, 10097 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1936 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:25:24,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78504 states. [2022-02-10 22:25:24,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78504 to 23436. [2022-02-10 22:25:24,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23436 states, 23435 states have (on average 2.870322167697888) internal successors, (67266), 23435 states have internal predecessors, (67266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:25,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23436 states to 23436 states and 67266 transitions. [2022-02-10 22:25:25,049 INFO L78 Accepts]: Start accepts. Automaton has 23436 states and 67266 transitions. Word has length 263 [2022-02-10 22:25:25,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:25,049 INFO L470 AbstractCegarLoop]: Abstraction has 23436 states and 67266 transitions. [2022-02-10 22:25:25,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:25,049 INFO L276 IsEmpty]: Start isEmpty. Operand 23436 states and 67266 transitions. [2022-02-10 22:25:25,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:25,085 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:25,085 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:25,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-10 22:25:25,086 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:25,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:25,086 INFO L85 PathProgramCache]: Analyzing trace with hash -215626991, now seen corresponding path program 39 times [2022-02-10 22:25:25,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:25,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288669482] [2022-02-10 22:25:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:25,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:25,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:25,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:25,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288669482] [2022-02-10 22:25:25,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288669482] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:25,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:25,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:25,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594541552] [2022-02-10 22:25:25,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:25,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:25,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:25,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:25,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:25,288 INFO L87 Difference]: Start difference. First operand 23436 states and 67266 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:27,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:27,119 INFO L93 Difference]: Finished difference Result 78288 states and 220674 transitions. [2022-02-10 22:25:27,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-10 22:25:27,119 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:27,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:27,299 INFO L225 Difference]: With dead ends: 78288 [2022-02-10 22:25:27,299 INFO L226 Difference]: Without dead ends: 78288 [2022-02-10 22:25:27,299 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=883, Invalid=3149, Unknown=0, NotChecked=0, Total=4032 [2022-02-10 22:25:27,300 INFO L934 BasicCegarLoop]: 1158 mSDtfsCounter, 3185 mSDsluCounter, 10749 mSDsCounter, 0 mSdLazyCounter, 2078 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3185 SdHoareTripleChecker+Valid, 11783 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:27,300 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3185 Valid, 11783 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2078 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:25:27,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78288 states. [2022-02-10 22:25:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78288 to 23100. [2022-02-10 22:25:28,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23100 states, 23099 states have (on average 2.859084808866185) internal successors, (66042), 23099 states have internal predecessors, (66042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:28,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23100 states to 23100 states and 66042 transitions. [2022-02-10 22:25:28,191 INFO L78 Accepts]: Start accepts. Automaton has 23100 states and 66042 transitions. Word has length 263 [2022-02-10 22:25:28,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:28,191 INFO L470 AbstractCegarLoop]: Abstraction has 23100 states and 66042 transitions. [2022-02-10 22:25:28,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:28,192 INFO L276 IsEmpty]: Start isEmpty. Operand 23100 states and 66042 transitions. [2022-02-10 22:25:28,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:28,226 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:28,226 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:28,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-10 22:25:28,227 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:28,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:28,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1068792351, now seen corresponding path program 40 times [2022-02-10 22:25:28,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:28,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299923806] [2022-02-10 22:25:28,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:28,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:28,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:28,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:28,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299923806] [2022-02-10 22:25:28,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299923806] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:28,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:28,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:25:28,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875989558] [2022-02-10 22:25:28,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:28,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:25:28,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:28,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:25:28,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:25:28,424 INFO L87 Difference]: Start difference. First operand 23100 states and 66042 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:29,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:29,908 INFO L93 Difference]: Finished difference Result 62988 states and 177593 transitions. [2022-02-10 22:25:29,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:25:29,909 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:30,053 INFO L225 Difference]: With dead ends: 62988 [2022-02-10 22:25:30,053 INFO L226 Difference]: Without dead ends: 62988 [2022-02-10 22:25:30,053 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=727, Invalid=2579, Unknown=0, NotChecked=0, Total=3306 [2022-02-10 22:25:30,054 INFO L934 BasicCegarLoop]: 1004 mSDtfsCounter, 2683 mSDsluCounter, 8198 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2683 SdHoareTripleChecker+Valid, 9102 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:30,054 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2683 Valid, 9102 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1610 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:25:30,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62988 states. [2022-02-10 22:25:30,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62988 to 23068. [2022-02-10 22:25:30,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23068 states, 23067 states have (on average 2.858715914509906) internal successors, (65942), 23067 states have internal predecessors, (65942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:30,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23068 states to 23068 states and 65942 transitions. [2022-02-10 22:25:30,853 INFO L78 Accepts]: Start accepts. Automaton has 23068 states and 65942 transitions. Word has length 263 [2022-02-10 22:25:30,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:30,853 INFO L470 AbstractCegarLoop]: Abstraction has 23068 states and 65942 transitions. [2022-02-10 22:25:30,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:30,854 INFO L276 IsEmpty]: Start isEmpty. Operand 23068 states and 65942 transitions. [2022-02-10 22:25:30,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:30,890 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:30,890 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:30,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-10 22:25:30,890 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:30,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:30,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1028540475, now seen corresponding path program 41 times [2022-02-10 22:25:30,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:30,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342074956] [2022-02-10 22:25:30,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:30,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:31,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:31,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:31,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342074956] [2022-02-10 22:25:31,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342074956] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:31,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:31,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:31,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951451254] [2022-02-10 22:25:31,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:31,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:31,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:31,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:31,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:31,235 INFO L87 Difference]: Start difference. First operand 23068 states and 65942 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:32,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:32,701 INFO L93 Difference]: Finished difference Result 65923 states and 185075 transitions. [2022-02-10 22:25:32,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:25:32,702 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:32,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:32,956 INFO L225 Difference]: With dead ends: 65923 [2022-02-10 22:25:32,957 INFO L226 Difference]: Without dead ends: 65923 [2022-02-10 22:25:32,957 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=772, Invalid=2768, Unknown=0, NotChecked=0, Total=3540 [2022-02-10 22:25:32,957 INFO L934 BasicCegarLoop]: 1045 mSDtfsCounter, 2960 mSDsluCounter, 9308 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2960 SdHoareTripleChecker+Valid, 10234 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:32,957 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2960 Valid, 10234 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:25:33,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65923 states. [2022-02-10 22:25:33,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65923 to 23068. [2022-02-10 22:25:33,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23068 states, 23067 states have (on average 2.858715914509906) internal successors, (65942), 23067 states have internal predecessors, (65942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:33,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23068 states to 23068 states and 65942 transitions. [2022-02-10 22:25:33,679 INFO L78 Accepts]: Start accepts. Automaton has 23068 states and 65942 transitions. Word has length 263 [2022-02-10 22:25:33,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:33,679 INFO L470 AbstractCegarLoop]: Abstraction has 23068 states and 65942 transitions. [2022-02-10 22:25:33,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:33,680 INFO L276 IsEmpty]: Start isEmpty. Operand 23068 states and 65942 transitions. [2022-02-10 22:25:33,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:33,709 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:33,710 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:33,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-10 22:25:33,710 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:33,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:33,710 INFO L85 PathProgramCache]: Analyzing trace with hash 744316453, now seen corresponding path program 42 times [2022-02-10 22:25:33,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:33,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605486627] [2022-02-10 22:25:33,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:33,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:33,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:33,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605486627] [2022-02-10 22:25:33,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605486627] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:33,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:33,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:33,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264578740] [2022-02-10 22:25:33,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:33,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:33,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:33,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:33,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:33,896 INFO L87 Difference]: Start difference. First operand 23068 states and 65942 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:35,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:35,066 INFO L93 Difference]: Finished difference Result 46009 states and 129657 transitions. [2022-02-10 22:25:35,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:25:35,067 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:35,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:35,156 INFO L225 Difference]: With dead ends: 46009 [2022-02-10 22:25:35,157 INFO L226 Difference]: Without dead ends: 46009 [2022-02-10 22:25:35,157 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=554, Invalid=2098, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:25:35,158 INFO L934 BasicCegarLoop]: 883 mSDtfsCounter, 2665 mSDsluCounter, 8957 mSDsCounter, 0 mSdLazyCounter, 1845 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 9724 SdHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:35,158 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2665 Valid, 9724 Invalid, 1873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1845 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:25:35,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46009 states. [2022-02-10 22:25:35,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46009 to 23444. [2022-02-10 22:25:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23444 states, 23443 states have (on average 2.8699398541142345) internal successors, (67280), 23443 states have internal predecessors, (67280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:35,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23444 states to 23444 states and 67280 transitions. [2022-02-10 22:25:35,755 INFO L78 Accepts]: Start accepts. Automaton has 23444 states and 67280 transitions. Word has length 263 [2022-02-10 22:25:35,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:35,755 INFO L470 AbstractCegarLoop]: Abstraction has 23444 states and 67280 transitions. [2022-02-10 22:25:35,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:35,755 INFO L276 IsEmpty]: Start isEmpty. Operand 23444 states and 67280 transitions. [2022-02-10 22:25:35,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:35,790 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:35,791 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:35,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-10 22:25:35,791 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:35,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:35,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1696286285, now seen corresponding path program 43 times [2022-02-10 22:25:35,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:35,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085488620] [2022-02-10 22:25:35,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:35,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:35,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:35,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:35,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085488620] [2022-02-10 22:25:35,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085488620] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:35,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:35,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:35,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922045416] [2022-02-10 22:25:35,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:35,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:35,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:35,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:35,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:35,982 INFO L87 Difference]: Start difference. First operand 23444 states and 67280 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:37,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:37,338 INFO L93 Difference]: Finished difference Result 46114 states and 130155 transitions. [2022-02-10 22:25:37,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:25:37,338 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:37,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:37,431 INFO L225 Difference]: With dead ends: 46114 [2022-02-10 22:25:37,431 INFO L226 Difference]: Without dead ends: 46114 [2022-02-10 22:25:37,432 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=593, Invalid=2269, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:25:37,432 INFO L934 BasicCegarLoop]: 942 mSDtfsCounter, 2478 mSDsluCounter, 8737 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2478 SdHoareTripleChecker+Valid, 9591 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:37,432 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2478 Valid, 9591 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:25:37,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46114 states. [2022-02-10 22:25:37,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46114 to 23116. [2022-02-10 22:25:38,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23116 states, 23115 states have (on average 2.8590093013194897) internal successors, (66086), 23115 states have internal predecessors, (66086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:38,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23116 states to 23116 states and 66086 transitions. [2022-02-10 22:25:38,077 INFO L78 Accepts]: Start accepts. Automaton has 23116 states and 66086 transitions. Word has length 263 [2022-02-10 22:25:38,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:38,078 INFO L470 AbstractCegarLoop]: Abstraction has 23116 states and 66086 transitions. [2022-02-10 22:25:38,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:38,078 INFO L276 IsEmpty]: Start isEmpty. Operand 23116 states and 66086 transitions. [2022-02-10 22:25:38,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:38,115 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:38,116 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:38,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-10 22:25:38,116 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:38,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:38,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1314261669, now seen corresponding path program 44 times [2022-02-10 22:25:38,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:38,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917662763] [2022-02-10 22:25:38,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:38,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:38,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:38,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:38,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917662763] [2022-02-10 22:25:38,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917662763] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:38,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:38,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:38,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709652213] [2022-02-10 22:25:38,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:38,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:38,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:38,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:38,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:38,315 INFO L87 Difference]: Start difference. First operand 23116 states and 66086 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:39,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:39,231 INFO L93 Difference]: Finished difference Result 30814 states and 87066 transitions. [2022-02-10 22:25:39,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-10 22:25:39,232 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:39,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:39,285 INFO L225 Difference]: With dead ends: 30814 [2022-02-10 22:25:39,285 INFO L226 Difference]: Without dead ends: 30814 [2022-02-10 22:25:39,286 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=479, Invalid=1873, Unknown=0, NotChecked=0, Total=2352 [2022-02-10 22:25:39,286 INFO L934 BasicCegarLoop]: 789 mSDtfsCounter, 2006 mSDsluCounter, 7347 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 8058 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:39,286 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2006 Valid, 8058 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:25:39,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30814 states. [2022-02-10 22:25:39,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30814 to 23084. [2022-02-10 22:25:39,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23084 states, 23083 states have (on average 2.858640557986397) internal successors, (65986), 23083 states have internal predecessors, (65986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:39,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23084 states to 23084 states and 65986 transitions. [2022-02-10 22:25:39,782 INFO L78 Accepts]: Start accepts. Automaton has 23084 states and 65986 transitions. Word has length 263 [2022-02-10 22:25:39,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:39,782 INFO L470 AbstractCegarLoop]: Abstraction has 23084 states and 65986 transitions. [2022-02-10 22:25:39,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:39,782 INFO L276 IsEmpty]: Start isEmpty. Operand 23084 states and 65986 transitions. [2022-02-10 22:25:39,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:39,814 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:39,814 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:39,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-10 22:25:39,815 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:39,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:39,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1467844005, now seen corresponding path program 45 times [2022-02-10 22:25:39,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:39,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175885204] [2022-02-10 22:25:39,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:39,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:40,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:40,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:40,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175885204] [2022-02-10 22:25:40,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175885204] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:40,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:40,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:40,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737089755] [2022-02-10 22:25:40,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:40,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:40,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:40,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:40,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:40,008 INFO L87 Difference]: Start difference. First operand 23084 states and 65986 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:41,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:41,263 INFO L93 Difference]: Finished difference Result 45828 states and 129170 transitions. [2022-02-10 22:25:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-10 22:25:41,263 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:41,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:41,348 INFO L225 Difference]: With dead ends: 45828 [2022-02-10 22:25:41,348 INFO L226 Difference]: Without dead ends: 45828 [2022-02-10 22:25:41,348 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=494, Invalid=1858, Unknown=0, NotChecked=0, Total=2352 [2022-02-10 22:25:41,349 INFO L934 BasicCegarLoop]: 819 mSDtfsCounter, 2330 mSDsluCounter, 8398 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2330 SdHoareTripleChecker+Valid, 9116 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:41,349 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2330 Valid, 9116 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:25:41,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45828 states. [2022-02-10 22:25:41,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45828 to 23444. [2022-02-10 22:25:41,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23444 states, 23443 states have (on average 2.8699398541142345) internal successors, (67280), 23443 states have internal predecessors, (67280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:42,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23444 states to 23444 states and 67280 transitions. [2022-02-10 22:25:42,046 INFO L78 Accepts]: Start accepts. Automaton has 23444 states and 67280 transitions. Word has length 263 [2022-02-10 22:25:42,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:42,047 INFO L470 AbstractCegarLoop]: Abstraction has 23444 states and 67280 transitions. [2022-02-10 22:25:42,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:42,047 INFO L276 IsEmpty]: Start isEmpty. Operand 23444 states and 67280 transitions. [2022-02-10 22:25:42,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:42,080 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:42,081 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:42,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-10 22:25:42,081 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:42,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:42,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1875153459, now seen corresponding path program 46 times [2022-02-10 22:25:42,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:42,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475739721] [2022-02-10 22:25:42,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:42,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:42,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:42,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:42,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475739721] [2022-02-10 22:25:42,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475739721] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:42,257 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:42,257 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:42,257 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863309362] [2022-02-10 22:25:42,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:42,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:42,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:42,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:42,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:42,258 INFO L87 Difference]: Start difference. First operand 23444 states and 67280 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:43,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:43,388 INFO L93 Difference]: Finished difference Result 45676 states and 128943 transitions. [2022-02-10 22:25:43,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:25:43,388 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:43,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:43,475 INFO L225 Difference]: With dead ends: 45676 [2022-02-10 22:25:43,475 INFO L226 Difference]: Without dead ends: 45676 [2022-02-10 22:25:43,476 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=555, Invalid=2097, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:25:43,476 INFO L934 BasicCegarLoop]: 842 mSDtfsCounter, 2267 mSDsluCounter, 8608 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2267 SdHoareTripleChecker+Valid, 9378 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:43,477 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2267 Valid, 9378 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:25:43,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45676 states. [2022-02-10 22:25:44,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45676 to 23116. [2022-02-10 22:25:44,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23116 states, 23115 states have (on average 2.8590093013194897) internal successors, (66086), 23115 states have internal predecessors, (66086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:44,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23116 states to 23116 states and 66086 transitions. [2022-02-10 22:25:44,154 INFO L78 Accepts]: Start accepts. Automaton has 23116 states and 66086 transitions. Word has length 263 [2022-02-10 22:25:44,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:44,154 INFO L470 AbstractCegarLoop]: Abstraction has 23116 states and 66086 transitions. [2022-02-10 22:25:44,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:44,154 INFO L276 IsEmpty]: Start isEmpty. Operand 23116 states and 66086 transitions. [2022-02-10 22:25:44,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:44,189 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:44,189 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:44,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-10 22:25:44,189 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:44,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:44,190 INFO L85 PathProgramCache]: Analyzing trace with hash 721125547, now seen corresponding path program 47 times [2022-02-10 22:25:44,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:44,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713053084] [2022-02-10 22:25:44,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:44,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:44,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:44,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:44,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713053084] [2022-02-10 22:25:44,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713053084] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:44,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:44,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:44,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646373751] [2022-02-10 22:25:44,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:44,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:44,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:44,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:44,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:44,364 INFO L87 Difference]: Start difference. First operand 23116 states and 66086 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:45,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:45,336 INFO L93 Difference]: Finished difference Result 31096 states and 87847 transitions. [2022-02-10 22:25:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:45,337 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:45,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:45,388 INFO L225 Difference]: With dead ends: 31096 [2022-02-10 22:25:45,389 INFO L226 Difference]: Without dead ends: 31096 [2022-02-10 22:25:45,389 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=428, Invalid=1642, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:25:45,389 INFO L934 BasicCegarLoop]: 719 mSDtfsCounter, 2109 mSDsluCounter, 6653 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 7287 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:45,389 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2109 Valid, 7287 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:25:45,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31096 states. [2022-02-10 22:25:45,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31096 to 23080. [2022-02-10 22:25:45,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23080 states, 23079 states have (on average 2.858659387321808) internal successors, (65975), 23079 states have internal predecessors, (65975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23080 states to 23080 states and 65975 transitions. [2022-02-10 22:25:45,760 INFO L78 Accepts]: Start accepts. Automaton has 23080 states and 65975 transitions. Word has length 263 [2022-02-10 22:25:45,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:45,760 INFO L470 AbstractCegarLoop]: Abstraction has 23080 states and 65975 transitions. [2022-02-10 22:25:45,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:45,760 INFO L276 IsEmpty]: Start isEmpty. Operand 23080 states and 65975 transitions. [2022-02-10 22:25:45,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:45,793 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:45,794 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:45,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-10 22:25:45,794 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:45,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:45,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1213999303, now seen corresponding path program 48 times [2022-02-10 22:25:45,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:45,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460500574] [2022-02-10 22:25:45,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:45,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:45,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:45,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460500574] [2022-02-10 22:25:45,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460500574] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:45,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:45,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:25:45,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114010017] [2022-02-10 22:25:45,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:45,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:25:45,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:45,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:25:45,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:25:45,979 INFO L87 Difference]: Start difference. First operand 23080 states and 65975 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:47,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:47,438 INFO L93 Difference]: Finished difference Result 63028 states and 177462 transitions. [2022-02-10 22:25:47,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:25:47,439 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:47,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:47,568 INFO L225 Difference]: With dead ends: 63028 [2022-02-10 22:25:47,569 INFO L226 Difference]: Without dead ends: 63028 [2022-02-10 22:25:47,569 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=673, Invalid=2407, Unknown=0, NotChecked=0, Total=3080 [2022-02-10 22:25:47,569 INFO L934 BasicCegarLoop]: 1030 mSDtfsCounter, 2528 mSDsluCounter, 8813 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2528 SdHoareTripleChecker+Valid, 9715 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:47,569 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2528 Valid, 9715 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1827 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:25:47,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63028 states. [2022-02-10 22:25:48,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63028 to 23512. [2022-02-10 22:25:48,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23512 states, 23511 states have (on average 2.870954021521841) internal successors, (67499), 23511 states have internal predecessors, (67499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:48,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23512 states to 23512 states and 67499 transitions. [2022-02-10 22:25:48,306 INFO L78 Accepts]: Start accepts. Automaton has 23512 states and 67499 transitions. Word has length 263 [2022-02-10 22:25:48,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:48,307 INFO L470 AbstractCegarLoop]: Abstraction has 23512 states and 67499 transitions. [2022-02-10 22:25:48,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:48,307 INFO L276 IsEmpty]: Start isEmpty. Operand 23512 states and 67499 transitions. [2022-02-10 22:25:48,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:48,343 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:48,343 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:48,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-10 22:25:48,343 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:48,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:48,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2128998161, now seen corresponding path program 49 times [2022-02-10 22:25:48,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:48,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830599035] [2022-02-10 22:25:48,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:48,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:48,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:48,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830599035] [2022-02-10 22:25:48,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830599035] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:48,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:48,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:25:48,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52431036] [2022-02-10 22:25:48,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:48,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:25:48,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:48,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:25:48,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:25:48,548 INFO L87 Difference]: Start difference. First operand 23512 states and 67499 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:50,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:50,139 INFO L93 Difference]: Finished difference Result 63052 states and 177798 transitions. [2022-02-10 22:25:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:25:50,140 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:50,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:50,303 INFO L225 Difference]: With dead ends: 63052 [2022-02-10 22:25:50,304 INFO L226 Difference]: Without dead ends: 63052 [2022-02-10 22:25:50,304 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=712, Invalid=2594, Unknown=0, NotChecked=0, Total=3306 [2022-02-10 22:25:50,306 INFO L934 BasicCegarLoop]: 1114 mSDtfsCounter, 2791 mSDsluCounter, 9822 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2791 SdHoareTripleChecker+Valid, 10824 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:50,306 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2791 Valid, 10824 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:25:50,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63052 states. [2022-02-10 22:25:51,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63052 to 23176. [2022-02-10 22:25:51,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23176 states, 23175 states have (on average 2.859762675296656) internal successors, (66275), 23175 states have internal predecessors, (66275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:51,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23176 states to 23176 states and 66275 transitions. [2022-02-10 22:25:51,117 INFO L78 Accepts]: Start accepts. Automaton has 23176 states and 66275 transitions. Word has length 263 [2022-02-10 22:25:51,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:51,117 INFO L470 AbstractCegarLoop]: Abstraction has 23176 states and 66275 transitions. [2022-02-10 22:25:51,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:51,118 INFO L276 IsEmpty]: Start isEmpty. Operand 23176 states and 66275 transitions. [2022-02-10 22:25:51,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:51,285 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:51,285 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:51,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-10 22:25:51,285 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:51,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:51,287 INFO L85 PathProgramCache]: Analyzing trace with hash -844578819, now seen corresponding path program 50 times [2022-02-10 22:25:51,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:51,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968957321] [2022-02-10 22:25:51,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:51,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:51,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:51,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968957321] [2022-02-10 22:25:51,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968957321] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:51,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:51,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:25:51,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291887549] [2022-02-10 22:25:51,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:51,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:25:51,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:51,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:25:51,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:25:51,490 INFO L87 Difference]: Start difference. First operand 23176 states and 66275 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:52,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:52,824 INFO L93 Difference]: Finished difference Result 47752 states and 134717 transitions. [2022-02-10 22:25:52,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:25:52,824 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:52,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:52,911 INFO L225 Difference]: With dead ends: 47752 [2022-02-10 22:25:52,911 INFO L226 Difference]: Without dead ends: 47752 [2022-02-10 22:25:52,911 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=589, Invalid=2167, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:25:52,911 INFO L934 BasicCegarLoop]: 960 mSDtfsCounter, 2043 mSDsluCounter, 8813 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 9675 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:52,911 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2043 Valid, 9675 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:25:52,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47752 states. [2022-02-10 22:25:53,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47752 to 23144. [2022-02-10 22:25:53,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23144 states, 23143 states have (on average 2.859395929654755) internal successors, (66175), 23143 states have internal predecessors, (66175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23144 states to 23144 states and 66175 transitions. [2022-02-10 22:25:53,522 INFO L78 Accepts]: Start accepts. Automaton has 23144 states and 66175 transitions. Word has length 263 [2022-02-10 22:25:53,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:53,522 INFO L470 AbstractCegarLoop]: Abstraction has 23144 states and 66175 transitions. [2022-02-10 22:25:53,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:53,522 INFO L276 IsEmpty]: Start isEmpty. Operand 23144 states and 66175 transitions. [2022-02-10 22:25:53,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:53,556 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:53,556 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:53,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-10 22:25:53,556 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:53,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:53,557 INFO L85 PathProgramCache]: Analyzing trace with hash -884830695, now seen corresponding path program 51 times [2022-02-10 22:25:53,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:53,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009461192] [2022-02-10 22:25:53,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:53,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:53,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:53,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:53,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009461192] [2022-02-10 22:25:53,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009461192] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:53,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:53,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:53,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169456226] [2022-02-10 22:25:53,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:53,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:53,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:53,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:53,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:53,732 INFO L87 Difference]: Start difference. First operand 23144 states and 66175 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:54,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:54,970 INFO L93 Difference]: Finished difference Result 50687 states and 142199 transitions. [2022-02-10 22:25:54,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:25:54,971 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:54,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:55,082 INFO L225 Difference]: With dead ends: 50687 [2022-02-10 22:25:55,082 INFO L226 Difference]: Without dead ends: 50687 [2022-02-10 22:25:55,082 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2345, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:25:55,083 INFO L934 BasicCegarLoop]: 1001 mSDtfsCounter, 2385 mSDsluCounter, 8457 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 9352 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:55,083 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2385 Valid, 9352 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:25:55,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50687 states. [2022-02-10 22:25:55,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50687 to 23072. [2022-02-10 22:25:55,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23072 states, 23071 states have (on average 2.8586970655801656) internal successors, (65953), 23071 states have internal predecessors, (65953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:55,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23072 states to 23072 states and 65953 transitions. [2022-02-10 22:25:55,742 INFO L78 Accepts]: Start accepts. Automaton has 23072 states and 65953 transitions. Word has length 263 [2022-02-10 22:25:55,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:55,742 INFO L470 AbstractCegarLoop]: Abstraction has 23072 states and 65953 transitions. [2022-02-10 22:25:55,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:55,742 INFO L276 IsEmpty]: Start isEmpty. Operand 23072 states and 65953 transitions. [2022-02-10 22:25:55,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:55,777 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:55,777 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:55,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-10 22:25:55,777 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:55,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:55,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1607652073, now seen corresponding path program 52 times [2022-02-10 22:25:55,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:55,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128004767] [2022-02-10 22:25:55,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:55,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:55,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:55,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128004767] [2022-02-10 22:25:55,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128004767] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:55,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:55,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:25:55,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179743819] [2022-02-10 22:25:55,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:55,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:25:55,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:55,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:25:55,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:25:55,966 INFO L87 Difference]: Start difference. First operand 23072 states and 65953 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:57,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:57,322 INFO L93 Difference]: Finished difference Result 46200 states and 130131 transitions. [2022-02-10 22:25:57,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:25:57,322 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:57,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:57,413 INFO L225 Difference]: With dead ends: 46200 [2022-02-10 22:25:57,413 INFO L226 Difference]: Without dead ends: 46200 [2022-02-10 22:25:57,413 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=596, Invalid=2160, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:25:57,414 INFO L934 BasicCegarLoop]: 965 mSDtfsCounter, 2424 mSDsluCounter, 9227 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2424 SdHoareTripleChecker+Valid, 10045 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:57,414 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2424 Valid, 10045 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1899 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:25:57,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46200 states. [2022-02-10 22:25:57,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46200 to 23607. [2022-02-10 22:25:57,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23607 states, 23606 states have (on average 2.870880284673388) internal successors, (67770), 23606 states have internal predecessors, (67770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:58,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23607 states to 23607 states and 67770 transitions. [2022-02-10 22:25:58,052 INFO L78 Accepts]: Start accepts. Automaton has 23607 states and 67770 transitions. Word has length 263 [2022-02-10 22:25:58,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:58,052 INFO L470 AbstractCegarLoop]: Abstraction has 23607 states and 67770 transitions. [2022-02-10 22:25:58,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:58,052 INFO L276 IsEmpty]: Start isEmpty. Operand 23607 states and 67770 transitions. [2022-02-10 22:25:58,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:25:58,090 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:58,090 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:58,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-10 22:25:58,090 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:58,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:58,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1735345391, now seen corresponding path program 53 times [2022-02-10 22:25:58,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:58,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319131331] [2022-02-10 22:25:58,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:58,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:58,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:58,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:58,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319131331] [2022-02-10 22:25:58,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319131331] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:58,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:58,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:25:58,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062819357] [2022-02-10 22:25:58,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:58,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:25:58,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:58,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:25:58,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:25:58,379 INFO L87 Difference]: Start difference. First operand 23607 states and 67770 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:59,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:59,529 INFO L93 Difference]: Finished difference Result 46374 states and 130808 transitions. [2022-02-10 22:25:59,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:25:59,529 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:25:59,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:59,619 INFO L225 Difference]: With dead ends: 46374 [2022-02-10 22:25:59,619 INFO L226 Difference]: Without dead ends: 46374 [2022-02-10 22:25:59,620 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=1922, Unknown=0, NotChecked=0, Total=2450 [2022-02-10 22:25:59,620 INFO L934 BasicCegarLoop]: 973 mSDtfsCounter, 2701 mSDsluCounter, 8899 mSDsCounter, 0 mSdLazyCounter, 1732 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 9764 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:59,620 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2701 Valid, 9764 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:25:59,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46374 states. [2022-02-10 22:26:00,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46374 to 23271. [2022-02-10 22:26:00,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23271 states, 23270 states have (on average 2.8597335625268587) internal successors, (66546), 23270 states have internal predecessors, (66546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:00,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23271 states to 23271 states and 66546 transitions. [2022-02-10 22:26:00,194 INFO L78 Accepts]: Start accepts. Automaton has 23271 states and 66546 transitions. Word has length 263 [2022-02-10 22:26:00,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:00,194 INFO L470 AbstractCegarLoop]: Abstraction has 23271 states and 66546 transitions. [2022-02-10 22:26:00,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:00,195 INFO L276 IsEmpty]: Start isEmpty. Operand 23271 states and 66546 transitions. [2022-02-10 22:26:00,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:00,227 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:00,228 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:00,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-10 22:26:00,228 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:00,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:00,228 INFO L85 PathProgramCache]: Analyzing trace with hash -450926049, now seen corresponding path program 54 times [2022-02-10 22:26:00,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:00,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813265716] [2022-02-10 22:26:00,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:00,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:00,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:00,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:00,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813265716] [2022-02-10 22:26:00,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813265716] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:00,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:00,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:00,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992078231] [2022-02-10 22:26:00,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:00,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:00,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:00,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:00,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:00,415 INFO L87 Difference]: Start difference. First operand 23271 states and 66546 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:01,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:01,644 INFO L93 Difference]: Finished difference Result 46941 states and 132437 transitions. [2022-02-10 22:26:01,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-10 22:26:01,645 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:01,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:01,735 INFO L225 Difference]: With dead ends: 46941 [2022-02-10 22:26:01,735 INFO L226 Difference]: Without dead ends: 46941 [2022-02-10 22:26:01,736 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=513, Invalid=1937, Unknown=0, NotChecked=0, Total=2450 [2022-02-10 22:26:01,736 INFO L934 BasicCegarLoop]: 940 mSDtfsCounter, 2136 mSDsluCounter, 9121 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 9954 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:01,736 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2136 Valid, 9954 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:26:01,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46941 states. [2022-02-10 22:26:02,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46941 to 23239. [2022-02-10 22:26:02,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23239 states, 23238 states have (on average 2.859368276099492) internal successors, (66446), 23238 states have internal predecessors, (66446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:02,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23239 states to 23239 states and 66446 transitions. [2022-02-10 22:26:02,353 INFO L78 Accepts]: Start accepts. Automaton has 23239 states and 66446 transitions. Word has length 263 [2022-02-10 22:26:02,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:02,353 INFO L470 AbstractCegarLoop]: Abstraction has 23239 states and 66446 transitions. [2022-02-10 22:26:02,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:02,353 INFO L276 IsEmpty]: Start isEmpty. Operand 23239 states and 66446 transitions. [2022-02-10 22:26:02,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:02,387 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:02,388 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:02,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-10 22:26:02,388 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:02,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:02,388 INFO L85 PathProgramCache]: Analyzing trace with hash -491177925, now seen corresponding path program 55 times [2022-02-10 22:26:02,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:02,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97960461] [2022-02-10 22:26:02,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:02,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:02,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:02,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:02,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97960461] [2022-02-10 22:26:02,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97960461] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:02,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:02,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:26:02,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655384317] [2022-02-10 22:26:02,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:02,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:26:02,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:02,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:26:02,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:26:02,577 INFO L87 Difference]: Start difference. First operand 23239 states and 66446 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:03,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:03,823 INFO L93 Difference]: Finished difference Result 50834 states and 142556 transitions. [2022-02-10 22:26:03,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:26:03,823 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:03,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:03,932 INFO L225 Difference]: With dead ends: 50834 [2022-02-10 22:26:03,933 INFO L226 Difference]: Without dead ends: 50834 [2022-02-10 22:26:03,933 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=557, Invalid=1993, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:26:03,933 INFO L934 BasicCegarLoop]: 955 mSDtfsCounter, 2569 mSDsluCounter, 8964 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2569 SdHoareTripleChecker+Valid, 9810 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:03,933 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2569 Valid, 9810 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1691 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:26:04,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50834 states. [2022-02-10 22:26:04,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50834 to 23175. [2022-02-10 22:26:04,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23175 states, 23174 states have (on average 2.8586346767929576) internal successors, (66246), 23174 states have internal predecessors, (66246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:04,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23175 states to 23175 states and 66246 transitions. [2022-02-10 22:26:04,570 INFO L78 Accepts]: Start accepts. Automaton has 23175 states and 66246 transitions. Word has length 263 [2022-02-10 22:26:04,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:04,570 INFO L470 AbstractCegarLoop]: Abstraction has 23175 states and 66246 transitions. [2022-02-10 22:26:04,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:04,570 INFO L276 IsEmpty]: Start isEmpty. Operand 23175 states and 66246 transitions. [2022-02-10 22:26:04,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:04,604 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:04,604 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:04,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-10 22:26:04,604 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:04,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:04,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1242645113, now seen corresponding path program 56 times [2022-02-10 22:26:04,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:04,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047521226] [2022-02-10 22:26:04,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:04,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:04,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:04,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047521226] [2022-02-10 22:26:04,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047521226] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:04,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:04,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:26:04,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931407764] [2022-02-10 22:26:04,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:04,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:26:04,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:04,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:26:04,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:26:04,801 INFO L87 Difference]: Start difference. First operand 23175 states and 66246 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:05,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:05,822 INFO L93 Difference]: Finished difference Result 31081 states and 87501 transitions. [2022-02-10 22:26:05,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-10 22:26:05,822 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:05,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:05,878 INFO L225 Difference]: With dead ends: 31081 [2022-02-10 22:26:05,878 INFO L226 Difference]: Without dead ends: 31081 [2022-02-10 22:26:05,878 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=483, Invalid=1773, Unknown=0, NotChecked=0, Total=2256 [2022-02-10 22:26:05,878 INFO L934 BasicCegarLoop]: 797 mSDtfsCounter, 1844 mSDsluCounter, 7081 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 7774 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:05,878 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1844 Valid, 7774 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:26:05,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31081 states. [2022-02-10 22:26:06,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31081 to 23175. [2022-02-10 22:26:06,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23175 states, 23174 states have (on average 2.8586346767929576) internal successors, (66246), 23174 states have internal predecessors, (66246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:06,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23175 states to 23175 states and 66246 transitions. [2022-02-10 22:26:06,309 INFO L78 Accepts]: Start accepts. Automaton has 23175 states and 66246 transitions. Word has length 263 [2022-02-10 22:26:06,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:06,309 INFO L470 AbstractCegarLoop]: Abstraction has 23175 states and 66246 transitions. [2022-02-10 22:26:06,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:06,309 INFO L276 IsEmpty]: Start isEmpty. Operand 23175 states and 66246 transitions. [2022-02-10 22:26:06,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:06,347 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:06,347 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:06,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-10 22:26:06,347 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:06,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:06,348 INFO L85 PathProgramCache]: Analyzing trace with hash -855675867, now seen corresponding path program 57 times [2022-02-10 22:26:06,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:06,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631506731] [2022-02-10 22:26:06,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:06,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:06,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:06,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:06,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631506731] [2022-02-10 22:26:06,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631506731] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:06,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:06,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:06,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775571216] [2022-02-10 22:26:06,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:06,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:06,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:06,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:06,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:06,664 INFO L87 Difference]: Start difference. First operand 23175 states and 66246 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:08,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:08,140 INFO L93 Difference]: Finished difference Result 61998 states and 174599 transitions. [2022-02-10 22:26:08,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:08,140 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:08,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:08,267 INFO L225 Difference]: With dead ends: 61998 [2022-02-10 22:26:08,267 INFO L226 Difference]: Without dead ends: 61998 [2022-02-10 22:26:08,268 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=595, Invalid=2375, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:26:08,268 INFO L934 BasicCegarLoop]: 905 mSDtfsCounter, 2409 mSDsluCounter, 9499 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 10270 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:08,268 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 10270 Invalid, 1950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:08,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61998 states. [2022-02-10 22:26:08,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61998 to 23575. [2022-02-10 22:26:08,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23575 states, 23574 states have (on average 2.8696869432425554) internal successors, (67650), 23574 states have internal predecessors, (67650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:09,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23575 states to 23575 states and 67650 transitions. [2022-02-10 22:26:09,013 INFO L78 Accepts]: Start accepts. Automaton has 23575 states and 67650 transitions. Word has length 263 [2022-02-10 22:26:09,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:09,013 INFO L470 AbstractCegarLoop]: Abstraction has 23575 states and 67650 transitions. [2022-02-10 22:26:09,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:09,013 INFO L276 IsEmpty]: Start isEmpty. Operand 23575 states and 67650 transitions. [2022-02-10 22:26:09,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:09,047 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:09,048 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:09,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-10 22:26:09,048 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:09,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:09,048 INFO L85 PathProgramCache]: Analyzing trace with hash 96293965, now seen corresponding path program 58 times [2022-02-10 22:26:09,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:09,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868934385] [2022-02-10 22:26:09,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:09,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:09,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:09,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868934385] [2022-02-10 22:26:09,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868934385] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:09,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:09,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:09,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184003858] [2022-02-10 22:26:09,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:09,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:09,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:09,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:09,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:09,237 INFO L87 Difference]: Start difference. First operand 23575 states and 67650 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:10,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:10,708 INFO L93 Difference]: Finished difference Result 61860 states and 174517 transitions. [2022-02-10 22:26:10,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:26:10,709 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:10,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:10,830 INFO L225 Difference]: With dead ends: 61860 [2022-02-10 22:26:10,830 INFO L226 Difference]: Without dead ends: 61860 [2022-02-10 22:26:10,830 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=552, Invalid=2204, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:26:10,831 INFO L934 BasicCegarLoop]: 934 mSDtfsCounter, 2407 mSDsluCounter, 9677 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2407 SdHoareTripleChecker+Valid, 10509 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:10,831 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2407 Valid, 10509 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:26:10,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61860 states. [2022-02-10 22:26:11,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61860 to 23247. [2022-02-10 22:26:11,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23247 states, 23246 states have (on average 2.8588144196851073) internal successors, (66456), 23246 states have internal predecessors, (66456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23247 states to 23247 states and 66456 transitions. [2022-02-10 22:26:11,576 INFO L78 Accepts]: Start accepts. Automaton has 23247 states and 66456 transitions. Word has length 263 [2022-02-10 22:26:11,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:11,576 INFO L470 AbstractCegarLoop]: Abstraction has 23247 states and 66456 transitions. [2022-02-10 22:26:11,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 23247 states and 66456 transitions. [2022-02-10 22:26:11,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:11,612 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:11,612 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:11,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-10 22:26:11,612 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:11,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:11,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1380713307, now seen corresponding path program 59 times [2022-02-10 22:26:11,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:11,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780582367] [2022-02-10 22:26:11,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:11,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:11,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:11,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:11,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780582367] [2022-02-10 22:26:11,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780582367] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:11,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:11,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:26:11,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103150984] [2022-02-10 22:26:11,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:11,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:26:11,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:11,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:26:11,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:26:11,797 INFO L87 Difference]: Start difference. First operand 23247 states and 66456 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:12,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:12,990 INFO L93 Difference]: Finished difference Result 48848 states and 138320 transitions. [2022-02-10 22:26:12,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-10 22:26:12,991 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:12,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:13,092 INFO L225 Difference]: With dead ends: 48848 [2022-02-10 22:26:13,092 INFO L226 Difference]: Without dead ends: 48848 [2022-02-10 22:26:13,093 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=486, Invalid=1866, Unknown=0, NotChecked=0, Total=2352 [2022-02-10 22:26:13,093 INFO L934 BasicCegarLoop]: 842 mSDtfsCounter, 2190 mSDsluCounter, 7798 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 8550 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:13,093 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2190 Valid, 8550 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:26:13,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48848 states. [2022-02-10 22:26:13,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48848 to 23215. [2022-02-10 22:26:13,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23215 states, 23214 states have (on average 2.858447488584475) internal successors, (66356), 23214 states have internal predecessors, (66356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:13,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23215 states to 23215 states and 66356 transitions. [2022-02-10 22:26:13,805 INFO L78 Accepts]: Start accepts. Automaton has 23215 states and 66356 transitions. Word has length 263 [2022-02-10 22:26:13,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:13,805 INFO L470 AbstractCegarLoop]: Abstraction has 23215 states and 66356 transitions. [2022-02-10 22:26:13,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:13,805 INFO L276 IsEmpty]: Start isEmpty. Operand 23215 states and 66356 transitions. [2022-02-10 22:26:13,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:13,837 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:13,837 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:13,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-10 22:26:13,837 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:13,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:13,838 INFO L85 PathProgramCache]: Analyzing trace with hash -132148315, now seen corresponding path program 60 times [2022-02-10 22:26:13,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:13,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170941642] [2022-02-10 22:26:13,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:13,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:14,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:14,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:14,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170941642] [2022-02-10 22:26:14,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170941642] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:14,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:14,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:14,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165178975] [2022-02-10 22:26:14,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:14,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:14,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:14,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:14,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:14,029 INFO L87 Difference]: Start difference. First operand 23215 states and 66356 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:15,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:15,602 INFO L93 Difference]: Finished difference Result 64813 states and 182966 transitions. [2022-02-10 22:26:15,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:26:15,602 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:15,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:15,735 INFO L225 Difference]: With dead ends: 64813 [2022-02-10 22:26:15,735 INFO L226 Difference]: Without dead ends: 64813 [2022-02-10 22:26:15,735 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=609, Invalid=2471, Unknown=0, NotChecked=0, Total=3080 [2022-02-10 22:26:15,736 INFO L934 BasicCegarLoop]: 984 mSDtfsCounter, 3161 mSDsluCounter, 9159 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3161 SdHoareTripleChecker+Valid, 10021 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:15,736 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3161 Valid, 10021 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:15,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64813 states. [2022-02-10 22:26:16,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64813 to 23575. [2022-02-10 22:26:16,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23575 states, 23574 states have (on average 2.8696869432425554) internal successors, (67650), 23574 states have internal predecessors, (67650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23575 states to 23575 states and 67650 transitions. [2022-02-10 22:26:16,382 INFO L78 Accepts]: Start accepts. Automaton has 23575 states and 67650 transitions. Word has length 263 [2022-02-10 22:26:16,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:16,382 INFO L470 AbstractCegarLoop]: Abstraction has 23575 states and 67650 transitions. [2022-02-10 22:26:16,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:16,382 INFO L276 IsEmpty]: Start isEmpty. Operand 23575 states and 67650 transitions. [2022-02-10 22:26:16,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:16,585 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:16,586 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:16,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-10 22:26:16,586 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:16,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:16,586 INFO L85 PathProgramCache]: Analyzing trace with hash 819821517, now seen corresponding path program 61 times [2022-02-10 22:26:16,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:16,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998269051] [2022-02-10 22:26:16,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:16,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:16,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:16,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998269051] [2022-02-10 22:26:16,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998269051] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:16,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:16,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:16,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785412087] [2022-02-10 22:26:16,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:16,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:16,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:16,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:16,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:16,778 INFO L87 Difference]: Start difference. First operand 23575 states and 67650 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:18,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:18,211 INFO L93 Difference]: Finished difference Result 64478 states and 182320 transitions. [2022-02-10 22:26:18,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:26:18,211 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:18,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:18,352 INFO L225 Difference]: With dead ends: 64478 [2022-02-10 22:26:18,353 INFO L226 Difference]: Without dead ends: 64478 [2022-02-10 22:26:18,353 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=611, Invalid=2469, Unknown=0, NotChecked=0, Total=3080 [2022-02-10 22:26:18,353 INFO L934 BasicCegarLoop]: 974 mSDtfsCounter, 2521 mSDsluCounter, 9980 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 10867 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:18,354 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2521 Valid, 10867 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:18,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64478 states. [2022-02-10 22:26:19,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64478 to 23247. [2022-02-10 22:26:19,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23247 states, 23246 states have (on average 2.8588144196851073) internal successors, (66456), 23246 states have internal predecessors, (66456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:19,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23247 states to 23247 states and 66456 transitions. [2022-02-10 22:26:19,131 INFO L78 Accepts]: Start accepts. Automaton has 23247 states and 66456 transitions. Word has length 263 [2022-02-10 22:26:19,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:19,131 INFO L470 AbstractCegarLoop]: Abstraction has 23247 states and 66456 transitions. [2022-02-10 22:26:19,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:19,131 INFO L276 IsEmpty]: Start isEmpty. Operand 23247 states and 66456 transitions. [2022-02-10 22:26:19,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:19,165 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:19,165 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:19,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-10 22:26:19,165 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:19,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:19,165 INFO L85 PathProgramCache]: Analyzing trace with hash -878866773, now seen corresponding path program 62 times [2022-02-10 22:26:19,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:19,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307304218] [2022-02-10 22:26:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:19,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:19,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:19,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:19,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307304218] [2022-02-10 22:26:19,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307304218] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:19,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:19,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:26:19,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210416843] [2022-02-10 22:26:19,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:19,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:26:19,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:19,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:26:19,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:26:19,341 INFO L87 Difference]: Start difference. First operand 23247 states and 66456 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:20,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:20,655 INFO L93 Difference]: Finished difference Result 50025 states and 141493 transitions. [2022-02-10 22:26:20,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:26:20,655 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:20,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:20,760 INFO L225 Difference]: With dead ends: 50025 [2022-02-10 22:26:20,760 INFO L226 Difference]: Without dead ends: 50025 [2022-02-10 22:26:20,761 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=500, Invalid=1950, Unknown=0, NotChecked=0, Total=2450 [2022-02-10 22:26:20,761 INFO L934 BasicCegarLoop]: 910 mSDtfsCounter, 2317 mSDsluCounter, 9094 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 9873 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:20,761 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2317 Valid, 9873 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:20,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50025 states. [2022-02-10 22:26:21,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50025 to 23211. [2022-02-10 22:26:21,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23211 states, 23210 states have (on average 2.858466178371392) internal successors, (66345), 23210 states have internal predecessors, (66345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:21,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23211 states to 23211 states and 66345 transitions. [2022-02-10 22:26:21,475 INFO L78 Accepts]: Start accepts. Automaton has 23211 states and 66345 transitions. Word has length 263 [2022-02-10 22:26:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:21,475 INFO L470 AbstractCegarLoop]: Abstraction has 23211 states and 66345 transitions. [2022-02-10 22:26:21,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand 23211 states and 66345 transitions. [2022-02-10 22:26:21,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:21,511 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:21,511 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:21,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-10 22:26:21,511 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:21,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:21,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2048397497, now seen corresponding path program 63 times [2022-02-10 22:26:21,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:21,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616857466] [2022-02-10 22:26:21,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:21,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:21,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:21,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616857466] [2022-02-10 22:26:21,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616857466] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:21,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:21,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:21,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909589893] [2022-02-10 22:26:21,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:21,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:21,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:21,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:21,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:21,698 INFO L87 Difference]: Start difference. First operand 23211 states and 66345 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:23,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:23,430 INFO L93 Difference]: Finished difference Result 64797 states and 182934 transitions. [2022-02-10 22:26:23,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:26:23,430 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:23,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:23,563 INFO L225 Difference]: With dead ends: 64797 [2022-02-10 22:26:23,564 INFO L226 Difference]: Without dead ends: 64797 [2022-02-10 22:26:23,564 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=740, Invalid=2920, Unknown=0, NotChecked=0, Total=3660 [2022-02-10 22:26:23,564 INFO L934 BasicCegarLoop]: 1050 mSDtfsCounter, 3485 mSDsluCounter, 9404 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3485 SdHoareTripleChecker+Valid, 10314 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:23,564 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3485 Valid, 10314 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:23,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64797 states. [2022-02-10 22:26:24,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64797 to 23643. [2022-02-10 22:26:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23643 states, 23642 states have (on average 2.8706962185940275) internal successors, (67869), 23642 states have internal predecessors, (67869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:24,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23643 states to 23643 states and 67869 transitions. [2022-02-10 22:26:24,382 INFO L78 Accepts]: Start accepts. Automaton has 23643 states and 67869 transitions. Word has length 263 [2022-02-10 22:26:24,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:24,382 INFO L470 AbstractCegarLoop]: Abstraction has 23643 states and 67869 transitions. [2022-02-10 22:26:24,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:24,382 INFO L276 IsEmpty]: Start isEmpty. Operand 23643 states and 67869 transitions. [2022-02-10 22:26:24,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:24,415 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:24,415 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:24,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-10 22:26:24,415 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:24,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:24,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1096427665, now seen corresponding path program 64 times [2022-02-10 22:26:24,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:24,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614892434] [2022-02-10 22:26:24,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:24,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:24,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:24,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:24,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614892434] [2022-02-10 22:26:24,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614892434] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:24,607 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:24,607 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:24,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498023353] [2022-02-10 22:26:24,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:24,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:24,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:24,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:24,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:24,608 INFO L87 Difference]: Start difference. First operand 23643 states and 67869 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:26,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:26,352 INFO L93 Difference]: Finished difference Result 64462 states and 182288 transitions. [2022-02-10 22:26:26,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:26:26,352 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:26,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:26,480 INFO L225 Difference]: With dead ends: 64462 [2022-02-10 22:26:26,480 INFO L226 Difference]: Without dead ends: 64462 [2022-02-10 22:26:26,480 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=700, Invalid=2722, Unknown=0, NotChecked=0, Total=3422 [2022-02-10 22:26:26,480 INFO L934 BasicCegarLoop]: 1025 mSDtfsCounter, 2994 mSDsluCounter, 10883 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 11800 SdHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:26,480 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2994 Valid, 11800 Invalid, 2174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:26,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64462 states. [2022-02-10 22:26:27,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64462 to 23307. [2022-02-10 22:26:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23307 states, 23306 states have (on average 2.859564060756887) internal successors, (66645), 23306 states have internal predecessors, (66645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:27,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23307 states to 23307 states and 66645 transitions. [2022-02-10 22:26:27,150 INFO L78 Accepts]: Start accepts. Automaton has 23307 states and 66645 transitions. Word has length 263 [2022-02-10 22:26:27,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:27,150 INFO L470 AbstractCegarLoop]: Abstraction has 23307 states and 66645 transitions. [2022-02-10 22:26:27,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:27,150 INFO L276 IsEmpty]: Start isEmpty. Operand 23307 states and 66645 transitions. [2022-02-10 22:26:27,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:27,183 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:27,183 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:27,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-10 22:26:27,183 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:27,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:27,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1499851341, now seen corresponding path program 65 times [2022-02-10 22:26:27,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:27,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595460892] [2022-02-10 22:26:27,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:27,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:27,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:27,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595460892] [2022-02-10 22:26:27,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595460892] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:27,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:27,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:27,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451940495] [2022-02-10 22:26:27,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:27,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:27,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:27,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:27,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:27,373 INFO L87 Difference]: Start difference. First operand 23307 states and 66645 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:28,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:28,880 INFO L93 Difference]: Finished difference Result 50465 states and 142711 transitions. [2022-02-10 22:26:28,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:26:28,880 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:28,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:28,993 INFO L225 Difference]: With dead ends: 50465 [2022-02-10 22:26:28,994 INFO L226 Difference]: Without dead ends: 50465 [2022-02-10 22:26:28,994 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=617, Invalid=2463, Unknown=0, NotChecked=0, Total=3080 [2022-02-10 22:26:28,994 INFO L934 BasicCegarLoop]: 977 mSDtfsCounter, 2440 mSDsluCounter, 10547 mSDsCounter, 0 mSdLazyCounter, 2062 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 11358 SdHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:28,994 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2440 Valid, 11358 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2062 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:29,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50465 states. [2022-02-10 22:26:29,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50465 to 23275. [2022-02-10 22:26:29,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23275 states, 23274 states have (on average 2.8591991062988744) internal successors, (66545), 23274 states have internal predecessors, (66545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:29,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23275 states to 23275 states and 66545 transitions. [2022-02-10 22:26:29,638 INFO L78 Accepts]: Start accepts. Automaton has 23275 states and 66545 transitions. Word has length 263 [2022-02-10 22:26:29,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:29,638 INFO L470 AbstractCegarLoop]: Abstraction has 23275 states and 66545 transitions. [2022-02-10 22:26:29,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:29,639 INFO L276 IsEmpty]: Start isEmpty. Operand 23275 states and 66545 transitions. [2022-02-10 22:26:29,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:29,672 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:29,673 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:29,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-10 22:26:29,673 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:29,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:29,673 INFO L85 PathProgramCache]: Analyzing trace with hash 894457705, now seen corresponding path program 66 times [2022-02-10 22:26:29,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:29,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421904424] [2022-02-10 22:26:29,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:29,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:29,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:29,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421904424] [2022-02-10 22:26:29,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421904424] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:29,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:29,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:29,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766412178] [2022-02-10 22:26:29,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:29,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:29,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:29,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:29,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:29,853 INFO L87 Difference]: Start difference. First operand 23275 states and 66545 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:31,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:31,344 INFO L93 Difference]: Finished difference Result 53971 states and 152020 transitions. [2022-02-10 22:26:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:26:31,344 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:31,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:31,470 INFO L225 Difference]: With dead ends: 53971 [2022-02-10 22:26:31,470 INFO L226 Difference]: Without dead ends: 53971 [2022-02-10 22:26:31,470 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=643, Invalid=2549, Unknown=0, NotChecked=0, Total=3192 [2022-02-10 22:26:31,471 INFO L934 BasicCegarLoop]: 1006 mSDtfsCounter, 2651 mSDsluCounter, 9109 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2651 SdHoareTripleChecker+Valid, 9962 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:31,471 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2651 Valid, 9962 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:26:31,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53971 states. [2022-02-10 22:26:32,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53971 to 23203. [2022-02-10 22:26:32,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23203 states, 23202 states have (on average 2.858503577277821) internal successors, (66323), 23202 states have internal predecessors, (66323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:32,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23203 states to 23203 states and 66323 transitions. [2022-02-10 22:26:32,168 INFO L78 Accepts]: Start accepts. Automaton has 23203 states and 66323 transitions. Word has length 263 [2022-02-10 22:26:32,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:32,168 INFO L470 AbstractCegarLoop]: Abstraction has 23203 states and 66323 transitions. [2022-02-10 22:26:32,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:32,168 INFO L276 IsEmpty]: Start isEmpty. Operand 23203 states and 66323 transitions. [2022-02-10 22:26:32,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:32,331 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:32,331 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:32,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-10 22:26:32,332 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:32,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:32,332 INFO L85 PathProgramCache]: Analyzing trace with hash -380951387, now seen corresponding path program 67 times [2022-02-10 22:26:32,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:32,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864399003] [2022-02-10 22:26:32,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:32,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:32,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:32,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:32,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864399003] [2022-02-10 22:26:32,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864399003] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:32,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:32,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:26:32,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124463297] [2022-02-10 22:26:32,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:32,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:26:32,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:32,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:26:32,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:26:32,519 INFO L87 Difference]: Start difference. First operand 23203 states and 66323 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:33,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:33,987 INFO L93 Difference]: Finished difference Result 65610 states and 185163 transitions. [2022-02-10 22:26:33,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:26:33,987 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:33,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:34,119 INFO L225 Difference]: With dead ends: 65610 [2022-02-10 22:26:34,120 INFO L226 Difference]: Without dead ends: 65610 [2022-02-10 22:26:34,120 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=612, Invalid=2358, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:26:34,120 INFO L934 BasicCegarLoop]: 986 mSDtfsCounter, 2885 mSDsluCounter, 8871 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2885 SdHoareTripleChecker+Valid, 9734 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:34,120 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2885 Valid, 9734 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:26:34,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65610 states. [2022-02-10 22:26:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65610 to 23575. [2022-02-10 22:26:34,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23575 states, 23574 states have (on average 2.8696869432425554) internal successors, (67650), 23574 states have internal predecessors, (67650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:34,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23575 states to 23575 states and 67650 transitions. [2022-02-10 22:26:34,811 INFO L78 Accepts]: Start accepts. Automaton has 23575 states and 67650 transitions. Word has length 263 [2022-02-10 22:26:34,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:34,812 INFO L470 AbstractCegarLoop]: Abstraction has 23575 states and 67650 transitions. [2022-02-10 22:26:34,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:34,812 INFO L276 IsEmpty]: Start isEmpty. Operand 23575 states and 67650 transitions. [2022-02-10 22:26:34,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:34,846 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:34,846 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:34,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-10 22:26:34,846 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:34,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:34,846 INFO L85 PathProgramCache]: Analyzing trace with hash 571018445, now seen corresponding path program 68 times [2022-02-10 22:26:34,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:34,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942315873] [2022-02-10 22:26:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:34,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:35,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:35,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:35,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942315873] [2022-02-10 22:26:35,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942315873] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:35,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:35,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:35,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626958876] [2022-02-10 22:26:35,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:35,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:35,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:35,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:35,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:35,029 INFO L87 Difference]: Start difference. First operand 23575 states and 67650 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:36,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:36,554 INFO L93 Difference]: Finished difference Result 65472 states and 185081 transitions. [2022-02-10 22:26:36,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:26:36,554 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:36,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:36,688 INFO L225 Difference]: With dead ends: 65472 [2022-02-10 22:26:36,688 INFO L226 Difference]: Without dead ends: 65472 [2022-02-10 22:26:36,689 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=610, Invalid=2470, Unknown=0, NotChecked=0, Total=3080 [2022-02-10 22:26:36,689 INFO L934 BasicCegarLoop]: 1058 mSDtfsCounter, 2466 mSDsluCounter, 10646 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2466 SdHoareTripleChecker+Valid, 11594 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:36,689 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2466 Valid, 11594 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:36,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65472 states. [2022-02-10 22:26:37,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65472 to 23247. [2022-02-10 22:26:37,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23247 states, 23246 states have (on average 2.8588144196851073) internal successors, (66456), 23246 states have internal predecessors, (66456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:37,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23247 states to 23247 states and 66456 transitions. [2022-02-10 22:26:37,494 INFO L78 Accepts]: Start accepts. Automaton has 23247 states and 66456 transitions. Word has length 263 [2022-02-10 22:26:37,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:37,494 INFO L470 AbstractCegarLoop]: Abstraction has 23247 states and 66456 transitions. [2022-02-10 22:26:37,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:37,495 INFO L276 IsEmpty]: Start isEmpty. Operand 23247 states and 66456 transitions. [2022-02-10 22:26:37,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:37,527 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:37,528 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:37,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-10 22:26:37,528 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:37,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:37,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1855437787, now seen corresponding path program 69 times [2022-02-10 22:26:37,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:37,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56371830] [2022-02-10 22:26:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:37,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:37,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:37,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:37,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56371830] [2022-02-10 22:26:37,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56371830] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:37,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:37,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:26:37,704 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118526592] [2022-02-10 22:26:37,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:37,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:26:37,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:37,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:26:37,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:26:37,705 INFO L87 Difference]: Start difference. First operand 23247 states and 66456 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:38,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:38,943 INFO L93 Difference]: Finished difference Result 50016 states and 141555 transitions. [2022-02-10 22:26:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:26:38,944 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:38,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:39,057 INFO L225 Difference]: With dead ends: 50016 [2022-02-10 22:26:39,057 INFO L226 Difference]: Without dead ends: 50016 [2022-02-10 22:26:39,058 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=503, Invalid=1947, Unknown=0, NotChecked=0, Total=2450 [2022-02-10 22:26:39,058 INFO L934 BasicCegarLoop]: 904 mSDtfsCounter, 1952 mSDsluCounter, 8352 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 9166 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:39,058 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1952 Valid, 9166 Invalid, 1580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:26:39,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50016 states. [2022-02-10 22:26:39,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50016 to 23215. [2022-02-10 22:26:39,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23215 states, 23214 states have (on average 2.858447488584475) internal successors, (66356), 23214 states have internal predecessors, (66356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:39,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23215 states to 23215 states and 66356 transitions. [2022-02-10 22:26:39,684 INFO L78 Accepts]: Start accepts. Automaton has 23215 states and 66356 transitions. Word has length 263 [2022-02-10 22:26:39,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:39,684 INFO L470 AbstractCegarLoop]: Abstraction has 23215 states and 66356 transitions. [2022-02-10 22:26:39,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:39,684 INFO L276 IsEmpty]: Start isEmpty. Operand 23215 states and 66356 transitions. [2022-02-10 22:26:39,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:39,717 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:39,717 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:39,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-10 22:26:39,718 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:39,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:39,718 INFO L85 PathProgramCache]: Analyzing trace with hash 342576165, now seen corresponding path program 70 times [2022-02-10 22:26:39,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:39,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974699193] [2022-02-10 22:26:39,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:39,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:39,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:39,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:39,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974699193] [2022-02-10 22:26:39,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974699193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:39,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:39,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:39,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743976984] [2022-02-10 22:26:39,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:39,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:39,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:39,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:39,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:39,909 INFO L87 Difference]: Start difference. First operand 23215 states and 66356 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:41,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:41,387 INFO L93 Difference]: Finished difference Result 65765 states and 185592 transitions. [2022-02-10 22:26:41,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:26:41,388 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:41,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:41,520 INFO L225 Difference]: With dead ends: 65765 [2022-02-10 22:26:41,520 INFO L226 Difference]: Without dead ends: 65765 [2022-02-10 22:26:41,520 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=549, Invalid=2207, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:26:41,521 INFO L934 BasicCegarLoop]: 968 mSDtfsCounter, 2833 mSDsluCounter, 9810 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 10660 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:41,521 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2833 Valid, 10660 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:41,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65765 states. [2022-02-10 22:26:42,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65765 to 23575. [2022-02-10 22:26:42,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23575 states, 23574 states have (on average 2.8696869432425554) internal successors, (67650), 23574 states have internal predecessors, (67650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:42,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23575 states to 23575 states and 67650 transitions. [2022-02-10 22:26:42,309 INFO L78 Accepts]: Start accepts. Automaton has 23575 states and 67650 transitions. Word has length 263 [2022-02-10 22:26:42,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:42,309 INFO L470 AbstractCegarLoop]: Abstraction has 23575 states and 67650 transitions. [2022-02-10 22:26:42,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:42,309 INFO L276 IsEmpty]: Start isEmpty. Operand 23575 states and 67650 transitions. [2022-02-10 22:26:42,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:42,349 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:42,349 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:42,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-10 22:26:42,349 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:42,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:42,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1294545997, now seen corresponding path program 71 times [2022-02-10 22:26:42,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:42,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148466715] [2022-02-10 22:26:42,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:42,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:42,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:42,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:42,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148466715] [2022-02-10 22:26:42,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148466715] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:42,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:42,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:42,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924080658] [2022-02-10 22:26:42,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:42,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:42,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:42,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:42,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:42,539 INFO L87 Difference]: Start difference. First operand 23575 states and 67650 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:44,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:44,048 INFO L93 Difference]: Finished difference Result 65370 states and 184785 transitions. [2022-02-10 22:26:44,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:44,049 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:44,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:44,206 INFO L225 Difference]: With dead ends: 65370 [2022-02-10 22:26:44,206 INFO L226 Difference]: Without dead ends: 65370 [2022-02-10 22:26:44,206 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=596, Invalid=2374, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:26:44,206 INFO L934 BasicCegarLoop]: 991 mSDtfsCounter, 2369 mSDsluCounter, 10104 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2369 SdHoareTripleChecker+Valid, 11015 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:44,206 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2369 Valid, 11015 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1950 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:26:44,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65370 states. [2022-02-10 22:26:44,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65370 to 23247. [2022-02-10 22:26:44,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23247 states, 23246 states have (on average 2.8588144196851073) internal successors, (66456), 23246 states have internal predecessors, (66456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:44,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23247 states to 23247 states and 66456 transitions. [2022-02-10 22:26:44,986 INFO L78 Accepts]: Start accepts. Automaton has 23247 states and 66456 transitions. Word has length 263 [2022-02-10 22:26:44,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:44,986 INFO L470 AbstractCegarLoop]: Abstraction has 23247 states and 66456 transitions. [2022-02-10 22:26:44,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:44,986 INFO L276 IsEmpty]: Start isEmpty. Operand 23247 states and 66456 transitions. [2022-02-10 22:26:45,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:45,024 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:45,024 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:45,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-10 22:26:45,024 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:45,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:45,024 INFO L85 PathProgramCache]: Analyzing trace with hash -404142293, now seen corresponding path program 72 times [2022-02-10 22:26:45,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:45,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509188282] [2022-02-10 22:26:45,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:45,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:45,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:45,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:45,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509188282] [2022-02-10 22:26:45,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509188282] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:45,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:45,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:26:45,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541656126] [2022-02-10 22:26:45,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:45,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:26:45,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:45,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:26:45,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:26:45,216 INFO L87 Difference]: Start difference. First operand 23247 states and 66456 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:46,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:46,533 INFO L93 Difference]: Finished difference Result 51033 states and 144269 transitions. [2022-02-10 22:26:46,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-10 22:26:46,533 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:46,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:46,652 INFO L225 Difference]: With dead ends: 51033 [2022-02-10 22:26:46,652 INFO L226 Difference]: Without dead ends: 51033 [2022-02-10 22:26:46,652 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=489, Invalid=1863, Unknown=0, NotChecked=0, Total=2352 [2022-02-10 22:26:46,652 INFO L934 BasicCegarLoop]: 896 mSDtfsCounter, 1921 mSDsluCounter, 9001 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 9781 SdHoareTripleChecker+Invalid, 1728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:46,653 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1921 Valid, 9781 Invalid, 1728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:26:46,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51033 states. [2022-02-10 22:26:47,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51033 to 23211. [2022-02-10 22:26:47,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23211 states, 23210 states have (on average 2.858466178371392) internal successors, (66345), 23210 states have internal predecessors, (66345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:47,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23211 states to 23211 states and 66345 transitions. [2022-02-10 22:26:47,367 INFO L78 Accepts]: Start accepts. Automaton has 23211 states and 66345 transitions. Word has length 263 [2022-02-10 22:26:47,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:47,367 INFO L470 AbstractCegarLoop]: Abstraction has 23211 states and 66345 transitions. [2022-02-10 22:26:47,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:47,368 INFO L276 IsEmpty]: Start isEmpty. Operand 23211 states and 66345 transitions. [2022-02-10 22:26:47,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:47,401 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:47,401 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:47,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-10 22:26:47,401 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:47,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:47,401 INFO L85 PathProgramCache]: Analyzing trace with hash 88731463, now seen corresponding path program 73 times [2022-02-10 22:26:47,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:47,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203256181] [2022-02-10 22:26:47,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:47,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:47,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:47,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:47,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203256181] [2022-02-10 22:26:47,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203256181] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:47,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:47,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:47,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110585452] [2022-02-10 22:26:47,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:47,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:47,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:47,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:47,591 INFO L87 Difference]: Start difference. First operand 23211 states and 66345 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:49,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:49,343 INFO L93 Difference]: Finished difference Result 79465 states and 223632 transitions. [2022-02-10 22:26:49,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:26:49,343 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:49,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:49,507 INFO L225 Difference]: With dead ends: 79465 [2022-02-10 22:26:49,507 INFO L226 Difference]: Without dead ends: 79465 [2022-02-10 22:26:49,507 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=741, Invalid=2919, Unknown=0, NotChecked=0, Total=3660 [2022-02-10 22:26:49,508 INFO L934 BasicCegarLoop]: 1034 mSDtfsCounter, 3160 mSDsluCounter, 10334 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3160 SdHoareTripleChecker+Valid, 11231 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:49,508 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3160 Valid, 11231 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:49,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79465 states. [2022-02-10 22:26:50,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79465 to 23643. [2022-02-10 22:26:50,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23643 states, 23642 states have (on average 2.8706962185940275) internal successors, (67869), 23642 states have internal predecessors, (67869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:50,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23643 states to 23643 states and 67869 transitions. [2022-02-10 22:26:50,389 INFO L78 Accepts]: Start accepts. Automaton has 23643 states and 67869 transitions. Word has length 263 [2022-02-10 22:26:50,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:50,390 INFO L470 AbstractCegarLoop]: Abstraction has 23643 states and 67869 transitions. [2022-02-10 22:26:50,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:50,390 INFO L276 IsEmpty]: Start isEmpty. Operand 23643 states and 67869 transitions. [2022-02-10 22:26:50,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:50,425 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:50,425 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:50,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-10 22:26:50,425 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:50,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:50,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1040701295, now seen corresponding path program 74 times [2022-02-10 22:26:50,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:50,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651384051] [2022-02-10 22:26:50,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:50,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:50,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:50,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:50,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651384051] [2022-02-10 22:26:50,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651384051] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:50,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:50,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:26:50,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720863667] [2022-02-10 22:26:50,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:50,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:26:50,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:50,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:26:50,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:26:50,617 INFO L87 Difference]: Start difference. First operand 23643 states and 67869 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:52,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:52,511 INFO L93 Difference]: Finished difference Result 79186 states and 223227 transitions. [2022-02-10 22:26:52,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:26:52,511 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:52,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:52,659 INFO L225 Difference]: With dead ends: 79186 [2022-02-10 22:26:52,659 INFO L226 Difference]: Without dead ends: 79186 [2022-02-10 22:26:52,659 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=744, Invalid=2796, Unknown=0, NotChecked=0, Total=3540 [2022-02-10 22:26:52,660 INFO L934 BasicCegarLoop]: 1121 mSDtfsCounter, 2990 mSDsluCounter, 10401 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2990 SdHoareTripleChecker+Valid, 11409 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:52,660 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2990 Valid, 11409 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:52,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79186 states. [2022-02-10 22:26:53,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79186 to 23307. [2022-02-10 22:26:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23307 states, 23306 states have (on average 2.859564060756887) internal successors, (66645), 23306 states have internal predecessors, (66645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:53,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23307 states to 23307 states and 66645 transitions. [2022-02-10 22:26:53,531 INFO L78 Accepts]: Start accepts. Automaton has 23307 states and 66645 transitions. Word has length 263 [2022-02-10 22:26:53,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:53,532 INFO L470 AbstractCegarLoop]: Abstraction has 23307 states and 66645 transitions. [2022-02-10 22:26:53,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:53,532 INFO L276 IsEmpty]: Start isEmpty. Operand 23307 states and 66645 transitions. [2022-02-10 22:26:53,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:53,701 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:53,701 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:53,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-10 22:26:53,701 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:53,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:53,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1969846659, now seen corresponding path program 75 times [2022-02-10 22:26:53,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:53,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55875840] [2022-02-10 22:26:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:53,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:53,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:53,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:53,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55875840] [2022-02-10 22:26:53,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55875840] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:53,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:53,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:26:53,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761214393] [2022-02-10 22:26:53,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:53,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:26:53,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:53,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:26:53,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:26:53,892 INFO L87 Difference]: Start difference. First operand 23307 states and 66645 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:55,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:55,356 INFO L93 Difference]: Finished difference Result 63886 states and 180146 transitions. [2022-02-10 22:26:55,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:26:55,356 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:55,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:55,492 INFO L225 Difference]: With dead ends: 63886 [2022-02-10 22:26:55,492 INFO L226 Difference]: Without dead ends: 63886 [2022-02-10 22:26:55,492 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=621, Invalid=2349, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:26:55,492 INFO L934 BasicCegarLoop]: 967 mSDtfsCounter, 2481 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 9638 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:55,492 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2481 Valid, 9638 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:26:55,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63886 states. [2022-02-10 22:26:56,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63886 to 23275. [2022-02-10 22:26:56,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23275 states, 23274 states have (on average 2.8591991062988744) internal successors, (66545), 23274 states have internal predecessors, (66545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:56,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23275 states to 23275 states and 66545 transitions. [2022-02-10 22:26:56,263 INFO L78 Accepts]: Start accepts. Automaton has 23275 states and 66545 transitions. Word has length 263 [2022-02-10 22:26:56,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:56,263 INFO L470 AbstractCegarLoop]: Abstraction has 23275 states and 66545 transitions. [2022-02-10 22:26:56,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:56,264 INFO L276 IsEmpty]: Start isEmpty. Operand 23275 states and 66545 transitions. [2022-02-10 22:26:56,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:56,305 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:56,305 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:56,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-10 22:26:56,306 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:56,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:56,306 INFO L85 PathProgramCache]: Analyzing trace with hash -2010098535, now seen corresponding path program 76 times [2022-02-10 22:26:56,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:56,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454251004] [2022-02-10 22:26:56,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:56,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:56,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:56,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:56,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454251004] [2022-02-10 22:26:56,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454251004] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:56,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:56,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:56,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263504366] [2022-02-10 22:26:56,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:56,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:56,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:56,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:56,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:56,496 INFO L87 Difference]: Start difference. First operand 23275 states and 66545 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:58,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:58,149 INFO L93 Difference]: Finished difference Result 66821 states and 187628 transitions. [2022-02-10 22:26:58,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:26:58,150 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:26:58,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:58,307 INFO L225 Difference]: With dead ends: 66821 [2022-02-10 22:26:58,307 INFO L226 Difference]: Without dead ends: 66821 [2022-02-10 22:26:58,308 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=641, Invalid=2551, Unknown=0, NotChecked=0, Total=3192 [2022-02-10 22:26:58,308 INFO L934 BasicCegarLoop]: 1008 mSDtfsCounter, 2658 mSDsluCounter, 10955 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2658 SdHoareTripleChecker+Valid, 11837 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:58,308 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2658 Valid, 11837 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:58,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66821 states. [2022-02-10 22:26:59,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66821 to 23187. [2022-02-10 22:26:59,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23187 states, 23186 states have (on average 2.858578452514448) internal successors, (66279), 23186 states have internal predecessors, (66279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:59,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23187 states to 23187 states and 66279 transitions. [2022-02-10 22:26:59,188 INFO L78 Accepts]: Start accepts. Automaton has 23187 states and 66279 transitions. Word has length 263 [2022-02-10 22:26:59,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:59,188 INFO L470 AbstractCegarLoop]: Abstraction has 23187 states and 66279 transitions. [2022-02-10 22:26:59,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:59,188 INFO L276 IsEmpty]: Start isEmpty. Operand 23187 states and 66279 transitions. [2022-02-10 22:26:59,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:26:59,222 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:59,222 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:59,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-10 22:26:59,222 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:59,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:59,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1007440731, now seen corresponding path program 77 times [2022-02-10 22:26:59,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:59,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485063859] [2022-02-10 22:26:59,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:59,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:59,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:59,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:59,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485063859] [2022-02-10 22:26:59,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485063859] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:59,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:59,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:26:59,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097128478] [2022-02-10 22:26:59,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:59,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:26:59,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:59,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:26:59,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:26:59,539 INFO L87 Difference]: Start difference. First operand 23187 states and 66279 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:00,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:00,609 INFO L93 Difference]: Finished difference Result 46326 states and 130542 transitions. [2022-02-10 22:27:00,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:27:00,610 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:27:00,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:00,713 INFO L225 Difference]: With dead ends: 46326 [2022-02-10 22:27:00,713 INFO L226 Difference]: Without dead ends: 46326 [2022-02-10 22:27:00,713 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=482, Invalid=2068, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:27:00,713 INFO L934 BasicCegarLoop]: 854 mSDtfsCounter, 2052 mSDsluCounter, 8260 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 9010 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:00,714 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2052 Valid, 9010 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:27:00,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46326 states. [2022-02-10 22:27:01,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46326 to 23563. [2022-02-10 22:27:01,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23563 states, 23562 states have (on average 2.869747899159664) internal successors, (67617), 23562 states have internal predecessors, (67617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:01,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23563 states to 23563 states and 67617 transitions. [2022-02-10 22:27:01,354 INFO L78 Accepts]: Start accepts. Automaton has 23563 states and 67617 transitions. Word has length 263 [2022-02-10 22:27:01,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:01,354 INFO L470 AbstractCegarLoop]: Abstraction has 23563 states and 67617 transitions. [2022-02-10 22:27:01,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:01,354 INFO L276 IsEmpty]: Start isEmpty. Operand 23563 states and 67617 transitions. [2022-02-10 22:27:01,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:27:01,389 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:01,389 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:01,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-10 22:27:01,389 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:01,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:01,390 INFO L85 PathProgramCache]: Analyzing trace with hash -55470899, now seen corresponding path program 78 times [2022-02-10 22:27:01,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:01,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626751115] [2022-02-10 22:27:01,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:01,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:01,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:01,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626751115] [2022-02-10 22:27:01,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626751115] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:01,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:01,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:27:01,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543484290] [2022-02-10 22:27:01,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:01,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:27:01,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:01,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:27:01,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:27:01,670 INFO L87 Difference]: Start difference. First operand 23563 states and 67617 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:02,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:02,748 INFO L93 Difference]: Finished difference Result 46431 states and 131040 transitions. [2022-02-10 22:27:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:27:02,749 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:27:02,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:02,836 INFO L225 Difference]: With dead ends: 46431 [2022-02-10 22:27:02,836 INFO L226 Difference]: Without dead ends: 46431 [2022-02-10 22:27:02,836 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=483, Invalid=2067, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:27:02,837 INFO L934 BasicCegarLoop]: 898 mSDtfsCounter, 2042 mSDsluCounter, 8568 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2042 SdHoareTripleChecker+Valid, 9384 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:02,837 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2042 Valid, 9384 Invalid, 1519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:27:02,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46431 states. [2022-02-10 22:27:03,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46431 to 23235. [2022-02-10 22:27:03,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23235 states, 23234 states have (on average 2.858870620642162) internal successors, (66423), 23234 states have internal predecessors, (66423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:03,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23235 states to 23235 states and 66423 transitions. [2022-02-10 22:27:03,400 INFO L78 Accepts]: Start accepts. Automaton has 23235 states and 66423 transitions. Word has length 263 [2022-02-10 22:27:03,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:03,401 INFO L470 AbstractCegarLoop]: Abstraction has 23235 states and 66423 transitions. [2022-02-10 22:27:03,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:03,401 INFO L276 IsEmpty]: Start isEmpty. Operand 23235 states and 66423 transitions. [2022-02-10 22:27:03,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:27:03,435 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:03,435 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:03,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-10 22:27:03,436 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:03,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:03,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1228948443, now seen corresponding path program 79 times [2022-02-10 22:27:03,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:03,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324832146] [2022-02-10 22:27:03,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:03,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:03,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:03,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:03,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324832146] [2022-02-10 22:27:03,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324832146] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:03,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:03,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-10 22:27:03,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372066744] [2022-02-10 22:27:03,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:03,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:27:03,633 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:03,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:27:03,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:27:03,633 INFO L87 Difference]: Start difference. First operand 23235 states and 66423 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:04,522 INFO L93 Difference]: Finished difference Result 31131 states and 87951 transitions. [2022-02-10 22:27:04,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:04,523 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:27:04,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:04,582 INFO L225 Difference]: With dead ends: 31131 [2022-02-10 22:27:04,582 INFO L226 Difference]: Without dead ends: 31131 [2022-02-10 22:27:04,582 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=391, Invalid=1589, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:27:04,582 INFO L934 BasicCegarLoop]: 740 mSDtfsCounter, 1736 mSDsluCounter, 6994 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 7663 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:04,583 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1736 Valid, 7663 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:27:04,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31131 states. [2022-02-10 22:27:05,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31131 to 23203. [2022-02-10 22:27:05,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23203 states, 23202 states have (on average 2.858503577277821) internal successors, (66323), 23202 states have internal predecessors, (66323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:05,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23203 states to 23203 states and 66323 transitions. [2022-02-10 22:27:05,112 INFO L78 Accepts]: Start accepts. Automaton has 23203 states and 66323 transitions. Word has length 263 [2022-02-10 22:27:05,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:05,112 INFO L470 AbstractCegarLoop]: Abstraction has 23203 states and 66323 transitions. [2022-02-10 22:27:05,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:05,112 INFO L276 IsEmpty]: Start isEmpty. Operand 23203 states and 66323 transitions. [2022-02-10 22:27:05,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:27:05,145 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:05,145 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:05,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-02-10 22:27:05,145 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:05,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:05,146 INFO L85 PathProgramCache]: Analyzing trace with hash -283913179, now seen corresponding path program 80 times [2022-02-10 22:27:05,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:05,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125179155] [2022-02-10 22:27:05,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:05,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:05,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:05,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125179155] [2022-02-10 22:27:05,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125179155] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:05,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:05,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:27:05,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538513008] [2022-02-10 22:27:05,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:05,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:27:05,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:05,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:27:05,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:27:05,326 INFO L87 Difference]: Start difference. First operand 23203 states and 66323 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:06,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:06,403 INFO L93 Difference]: Finished difference Result 46145 states and 130055 transitions. [2022-02-10 22:27:06,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-10 22:27:06,403 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:27:06,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:06,495 INFO L225 Difference]: With dead ends: 46145 [2022-02-10 22:27:06,495 INFO L226 Difference]: Without dead ends: 46145 [2022-02-10 22:27:06,496 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=431, Invalid=1825, Unknown=0, NotChecked=0, Total=2256 [2022-02-10 22:27:06,496 INFO L934 BasicCegarLoop]: 785 mSDtfsCounter, 2046 mSDsluCounter, 8197 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 8885 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:06,496 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2046 Valid, 8885 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:27:06,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46145 states. [2022-02-10 22:27:07,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46145 to 23563. [2022-02-10 22:27:07,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23563 states, 23562 states have (on average 2.869747899159664) internal successors, (67617), 23562 states have internal predecessors, (67617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:07,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23563 states to 23563 states and 67617 transitions. [2022-02-10 22:27:07,178 INFO L78 Accepts]: Start accepts. Automaton has 23563 states and 67617 transitions. Word has length 263 [2022-02-10 22:27:07,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:07,179 INFO L470 AbstractCegarLoop]: Abstraction has 23563 states and 67617 transitions. [2022-02-10 22:27:07,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:07,179 INFO L276 IsEmpty]: Start isEmpty. Operand 23563 states and 67617 transitions. [2022-02-10 22:27:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:27:07,218 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:07,218 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:07,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-02-10 22:27:07,218 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:07,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:07,219 INFO L85 PathProgramCache]: Analyzing trace with hash 668056653, now seen corresponding path program 81 times [2022-02-10 22:27:07,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:07,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958387356] [2022-02-10 22:27:07,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:07,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:07,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:07,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:07,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958387356] [2022-02-10 22:27:07,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958387356] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:07,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:07,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:27:07,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416854481] [2022-02-10 22:27:07,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:07,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:27:07,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:07,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:27:07,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:27:07,408 INFO L87 Difference]: Start difference. First operand 23563 states and 67617 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:08,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:08,509 INFO L93 Difference]: Finished difference Result 45993 states and 129828 transitions. [2022-02-10 22:27:08,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-10 22:27:08,510 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:27:08,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:08,596 INFO L225 Difference]: With dead ends: 45993 [2022-02-10 22:27:08,597 INFO L226 Difference]: Without dead ends: 45993 [2022-02-10 22:27:08,597 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=452, Invalid=1900, Unknown=0, NotChecked=0, Total=2352 [2022-02-10 22:27:08,597 INFO L934 BasicCegarLoop]: 795 mSDtfsCounter, 2222 mSDsluCounter, 7544 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 8280 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:08,598 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2222 Valid, 8280 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:27:08,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45993 states. [2022-02-10 22:27:09,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45993 to 23235. [2022-02-10 22:27:09,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23235 states, 23234 states have (on average 2.858870620642162) internal successors, (66423), 23234 states have internal predecessors, (66423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:09,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23235 states to 23235 states and 66423 transitions. [2022-02-10 22:27:09,219 INFO L78 Accepts]: Start accepts. Automaton has 23235 states and 66423 transitions. Word has length 263 [2022-02-10 22:27:09,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:09,220 INFO L470 AbstractCegarLoop]: Abstraction has 23235 states and 66423 transitions. [2022-02-10 22:27:09,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:09,220 INFO L276 IsEmpty]: Start isEmpty. Operand 23235 states and 66423 transitions. [2022-02-10 22:27:09,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:27:09,253 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:09,253 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:09,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-02-10 22:27:09,254 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:09,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:09,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1030631637, now seen corresponding path program 82 times [2022-02-10 22:27:09,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:09,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396875819] [2022-02-10 22:27:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:09,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:09,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:09,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396875819] [2022-02-10 22:27:09,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396875819] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:09,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:09,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:27:09,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015037780] [2022-02-10 22:27:09,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:09,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:27:09,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:09,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:27:09,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:27:09,431 INFO L87 Difference]: Start difference. First operand 23235 states and 66423 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:10,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:10,352 INFO L93 Difference]: Finished difference Result 31413 states and 88732 transitions. [2022-02-10 22:27:10,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:27:10,352 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:27:10,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:10,417 INFO L225 Difference]: With dead ends: 31413 [2022-02-10 22:27:10,418 INFO L226 Difference]: Without dead ends: 31413 [2022-02-10 22:27:10,418 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=374, Invalid=1606, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:27:10,418 INFO L934 BasicCegarLoop]: 679 mSDtfsCounter, 1936 mSDsluCounter, 7108 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 7701 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:10,418 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1936 Valid, 7701 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:27:10,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31413 states. [2022-02-10 22:27:10,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31413 to 23199. [2022-02-10 22:27:10,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23199 states, 23198 states have (on average 2.8585222864040003) internal successors, (66312), 23198 states have internal predecessors, (66312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:10,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23199 states to 23199 states and 66312 transitions. [2022-02-10 22:27:10,956 INFO L78 Accepts]: Start accepts. Automaton has 23199 states and 66312 transitions. Word has length 263 [2022-02-10 22:27:10,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:10,957 INFO L470 AbstractCegarLoop]: Abstraction has 23199 states and 66312 transitions. [2022-02-10 22:27:10,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:10,957 INFO L276 IsEmpty]: Start isEmpty. Operand 23199 states and 66312 transitions. [2022-02-10 22:27:10,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:27:10,994 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:10,994 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:10,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-02-10 22:27:10,994 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:10,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:10,994 INFO L85 PathProgramCache]: Analyzing trace with hash -537757881, now seen corresponding path program 83 times [2022-02-10 22:27:10,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:10,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312956502] [2022-02-10 22:27:10,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:10,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:11,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:11,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:11,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312956502] [2022-02-10 22:27:11,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312956502] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:11,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:11,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:27:11,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708464623] [2022-02-10 22:27:11,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:11,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:27:11,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:11,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:27:11,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:27:11,198 INFO L87 Difference]: Start difference. First operand 23199 states and 66312 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:12,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:12,693 INFO L93 Difference]: Finished difference Result 63345 states and 178347 transitions. [2022-02-10 22:27:12,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:27:12,693 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:27:12,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:12,831 INFO L225 Difference]: With dead ends: 63345 [2022-02-10 22:27:12,831 INFO L226 Difference]: Without dead ends: 63345 [2022-02-10 22:27:12,832 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=601, Invalid=2479, Unknown=0, NotChecked=0, Total=3080 [2022-02-10 22:27:12,832 INFO L934 BasicCegarLoop]: 987 mSDtfsCounter, 2380 mSDsluCounter, 9331 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2380 SdHoareTripleChecker+Valid, 10194 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:12,832 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2380 Valid, 10194 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:27:12,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63345 states. [2022-02-10 22:27:13,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63345 to 23631. [2022-02-10 22:27:13,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23631 states, 23630 states have (on average 2.870757511637749) internal successors, (67836), 23630 states have internal predecessors, (67836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:13,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23631 states to 23631 states and 67836 transitions. [2022-02-10 22:27:13,626 INFO L78 Accepts]: Start accepts. Automaton has 23631 states and 67836 transitions. Word has length 263 [2022-02-10 22:27:13,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:13,626 INFO L470 AbstractCegarLoop]: Abstraction has 23631 states and 67836 transitions. [2022-02-10 22:27:13,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:13,626 INFO L276 IsEmpty]: Start isEmpty. Operand 23631 states and 67836 transitions. [2022-02-10 22:27:13,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:27:13,662 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:13,662 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:13,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-02-10 22:27:13,662 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:13,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:13,662 INFO L85 PathProgramCache]: Analyzing trace with hash 414211951, now seen corresponding path program 84 times [2022-02-10 22:27:13,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:13,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985950135] [2022-02-10 22:27:13,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:13,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:13,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:13,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985950135] [2022-02-10 22:27:13,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985950135] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:13,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:13,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:27:13,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717634047] [2022-02-10 22:27:13,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:13,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:27:13,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:13,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:27:13,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:27:13,859 INFO L87 Difference]: Start difference. First operand 23631 states and 67836 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:15,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:15,499 INFO L93 Difference]: Finished difference Result 63369 states and 178683 transitions. [2022-02-10 22:27:15,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:27:15,500 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:27:15,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:15,651 INFO L225 Difference]: With dead ends: 63369 [2022-02-10 22:27:15,651 INFO L226 Difference]: Without dead ends: 63369 [2022-02-10 22:27:15,652 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=600, Invalid=2480, Unknown=0, NotChecked=0, Total=3080 [2022-02-10 22:27:15,652 INFO L934 BasicCegarLoop]: 1057 mSDtfsCounter, 2275 mSDsluCounter, 10652 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 11597 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:15,652 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2275 Valid, 11597 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:27:15,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63369 states. [2022-02-10 22:27:16,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63369 to 23295. [2022-02-10 22:27:16,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23295 states, 23294 states have (on average 2.859620503133854) internal successors, (66612), 23294 states have internal predecessors, (66612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:16,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23295 states to 23295 states and 66612 transitions. [2022-02-10 22:27:16,464 INFO L78 Accepts]: Start accepts. Automaton has 23295 states and 66612 transitions. Word has length 263 [2022-02-10 22:27:16,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:16,464 INFO L470 AbstractCegarLoop]: Abstraction has 23295 states and 66612 transitions. [2022-02-10 22:27:16,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:16,464 INFO L276 IsEmpty]: Start isEmpty. Operand 23295 states and 66612 transitions. [2022-02-10 22:27:16,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:27:16,498 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:16,498 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:16,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-02-10 22:27:16,499 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:16,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:16,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1698631293, now seen corresponding path program 85 times [2022-02-10 22:27:16,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:16,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228302733] [2022-02-10 22:27:16,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:16,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:16,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:16,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:16,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228302733] [2022-02-10 22:27:16,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228302733] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:16,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:16,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:27:16,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160147175] [2022-02-10 22:27:16,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:16,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:27:16,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:16,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:27:16,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:27:16,682 INFO L87 Difference]: Start difference. First operand 23295 states and 66612 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:17,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:17,988 INFO L93 Difference]: Finished difference Result 48069 states and 135602 transitions. [2022-02-10 22:27:17,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:27:17,989 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:27:17,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:18,078 INFO L225 Difference]: With dead ends: 48069 [2022-02-10 22:27:18,078 INFO L226 Difference]: Without dead ends: 48069 [2022-02-10 22:27:18,078 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=489, Invalid=2061, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:27:18,078 INFO L934 BasicCegarLoop]: 903 mSDtfsCounter, 1949 mSDsluCounter, 9314 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1949 SdHoareTripleChecker+Valid, 10118 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:18,079 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1949 Valid, 10118 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:27:18,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48069 states. [2022-02-10 22:27:18,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48069 to 23263. [2022-02-10 22:27:18,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23263 states, 23262 states have (on average 2.8592554380534776) internal successors, (66512), 23262 states have internal predecessors, (66512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:18,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23263 states to 23263 states and 66512 transitions. [2022-02-10 22:27:18,573 INFO L78 Accepts]: Start accepts. Automaton has 23263 states and 66512 transitions. Word has length 263 [2022-02-10 22:27:18,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:18,573 INFO L470 AbstractCegarLoop]: Abstraction has 23263 states and 66512 transitions. [2022-02-10 22:27:18,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:18,573 INFO L276 IsEmpty]: Start isEmpty. Operand 23263 states and 66512 transitions. [2022-02-10 22:27:18,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-10 22:27:18,726 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:18,726 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:18,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-02-10 22:27:18,726 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:18,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:18,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1658379417, now seen corresponding path program 86 times [2022-02-10 22:27:18,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:18,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489171015] [2022-02-10 22:27:18,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:18,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:18,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:18,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:18,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489171015] [2022-02-10 22:27:18,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489171015] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:18,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:18,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-10 22:27:18,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785375547] [2022-02-10 22:27:18,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:18,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:27:18,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:18,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:27:18,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:27:18,912 INFO L87 Difference]: Start difference. First operand 23263 states and 66512 transitions. Second operand has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:20,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:20,098 INFO L93 Difference]: Finished difference Result 51004 states and 143084 transitions. [2022-02-10 22:27:20,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:27:20,099 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2022-02-10 22:27:20,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:20,199 INFO L225 Difference]: With dead ends: 51004 [2022-02-10 22:27:20,199 INFO L226 Difference]: Without dead ends: 51004 [2022-02-10 22:27:20,200 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=510, Invalid=2142, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:27:20,200 INFO L934 BasicCegarLoop]: 944 mSDtfsCounter, 2119 mSDsluCounter, 9625 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 10457 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:20,200 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2119 Valid, 10457 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-10 22:27:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51004 states.