/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.mcr-reduction-4b0ab11 [2022-03-01 15:30:45,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 15:30:45,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 15:30:45,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 15:30:45,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 15:30:45,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 15:30:45,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 15:30:45,712 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 [2022-03-01 15:30:45,736 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 15:30:45,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 15:30:45,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 15:30:45,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 15:30:45,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 15:30:45,737 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 15:30:45,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 15:30:45,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 15:30:45,738 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 15:30:45,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 15:30:45,738 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 15:30:45,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 15:30:45,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 15:30:45,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 15:30:45,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 15:30:45,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 15:30:45,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 15:30:45,739 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 15:30:45,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 15:30:45,739 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 15:30:45,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 15:30:45,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 15:30:45,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 15:30:45,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 15:30:45,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 15:30:45,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:30:45,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 15:30:45,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 15:30:45,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 15:30:45,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 15:30:45,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 15:30:45,741 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 15:30:45,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 15:30:45,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 15:30:45,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 15:30:45,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 15:30:45,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 15:30:45,941 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 15:30:45,944 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 15:30:45,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-node-symm.wvr.c [2022-03-01 15:30:46,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/063866db6/67e550aafdeb400eacde160f320780d4/FLAG112bc2345 [2022-03-01 15:30:46,346 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 15:30:46,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-symm.wvr.c [2022-03-01 15:30:46,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/063866db6/67e550aafdeb400eacde160f320780d4/FLAG112bc2345 [2022-03-01 15:30:46,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/063866db6/67e550aafdeb400eacde160f320780d4 [2022-03-01 15:30:46,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 15:30:46,777 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 15:30:46,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 15:30:46,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 15:30:46,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 15:30:46,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:30:46" (1/1) ... [2022-03-01 15:30:46,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b522a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46, skipping insertion in model container [2022-03-01 15:30:46,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:30:46" (1/1) ... [2022-03-01 15:30:46,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 15:30:46,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 15:30:46,943 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] [2022-03-01 15:30:46,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:30:46,968 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 15:30:46,984 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] [2022-03-01 15:30:46,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:30:46,999 INFO L208 MainTranslator]: Completed translation [2022-03-01 15:30:46,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46 WrapperNode [2022-03-01 15:30:46,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 15:30:47,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 15:30:47,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 15:30:47,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 15:30:47,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46" (1/1) ... [2022-03-01 15:30:47,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46" (1/1) ... [2022-03-01 15:30:47,049 INFO L137 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 314 [2022-03-01 15:30:47,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 15:30:47,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 15:30:47,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 15:30:47,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 15:30:47,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46" (1/1) ... [2022-03-01 15:30:47,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46" (1/1) ... [2022-03-01 15:30:47,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46" (1/1) ... [2022-03-01 15:30:47,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46" (1/1) ... [2022-03-01 15:30:47,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46" (1/1) ... [2022-03-01 15:30:47,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46" (1/1) ... [2022-03-01 15:30:47,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46" (1/1) ... [2022-03-01 15:30:47,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 15:30:47,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 15:30:47,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 15:30:47,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 15:30:47,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46" (1/1) ... [2022-03-01 15:30:47,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:30:47,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:30:47,145 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) [2022-03-01 15:30:47,147 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 [2022-03-01 15:30:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 15:30:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 15:30:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 15:30:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 15:30:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 15:30:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 15:30:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 15:30:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 15:30:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 15:30:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-01 15:30:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 15:30:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 15:30:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 15:30:47,180 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 15:30:47,276 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 15:30:47,277 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 15:30:47,648 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 15:30:47,663 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 15:30:47,663 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-01 15:30:47,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:30:47 BoogieIcfgContainer [2022-03-01 15:30:47,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 15:30:47,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 15:30:47,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 15:30:47,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 15:30:47,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 03:30:46" (1/3) ... [2022-03-01 15:30:47,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20da97fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:30:47, skipping insertion in model container [2022-03-01 15:30:47,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:30:46" (2/3) ... [2022-03-01 15:30:47,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20da97fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:30:47, skipping insertion in model container [2022-03-01 15:30:47,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:30:47" (3/3) ... [2022-03-01 15:30:47,673 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-node-symm.wvr.c [2022-03-01 15:30:47,676 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 15:30:47,677 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 15:30:47,677 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 15:30:47,677 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 15:30:47,731 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,732 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,732 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,732 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,732 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,732 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,732 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,734 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,734 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,734 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,734 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,734 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,734 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,734 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,736 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,736 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,736 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,736 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,736 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,750 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,750 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,750 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,750 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,750 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,750 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,750 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,767 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,767 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,767 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,773 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,773 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,773 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,774 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,774 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,774 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,774 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,774 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,774 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,774 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,774 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,775 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,775 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,775 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,775 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,775 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,775 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,775 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,775 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,776 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,776 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,776 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,776 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,777 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,777 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,777 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,777 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,777 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,777 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,779 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,779 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,779 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,779 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,779 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,779 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,779 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,779 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,779 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,779 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,780 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,780 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,781 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,781 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,782 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,782 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,803 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,803 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,803 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,803 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,803 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,804 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,804 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,804 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,804 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,804 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,804 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,804 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,820 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:30:47,824 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-01 15:30:47,853 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 15:30:47,858 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 15:30:47,858 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-01 15:30:47,871 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 385 places, 414 transitions, 844 flow [2022-03-01 15:30:48,186 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) [2022-03-01 15:30:48,241 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) [2022-03-01 15:30:48,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-03-01 15:30:48,389 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:48,390 INFO L514 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] [2022-03-01 15:30:48,391 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:48,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:48,398 INFO L85 PathProgramCache]: Analyzing trace with hash -670772536, now seen corresponding path program 1 times [2022-03-01 15:30:48,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:48,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146710110] [2022-03-01 15:30:48,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:48,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:48,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:48,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:48,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146710110] [2022-03-01 15:30:48,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146710110] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:48,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:48,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 15:30:48,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700617566] [2022-03-01 15:30:48,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:48,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 15:30:48,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:48,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 15:30:48,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 15:30:48,713 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) [2022-03-01 15:30:48,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:48,882 INFO L93 Difference]: Finished difference Result 14694 states and 41043 transitions. [2022-03-01 15:30:48,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 15:30:48,884 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 [2022-03-01 15:30:48,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:48,969 INFO L225 Difference]: With dead ends: 14694 [2022-03-01 15:30:48,970 INFO L226 Difference]: Without dead ends: 13736 [2022-03-01 15:30:48,971 INFO L932 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 [2022-03-01 15:30:48,975 INFO L933 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 [2022-03-01 15:30:48,976 INFO L934 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] [2022-03-01 15:30:49,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13736 states. [2022-03-01 15:30:49,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13736 to 13736. [2022-03-01 15:30:49,493 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) [2022-03-01 15:30:49,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13736 states to 13736 states and 38395 transitions. [2022-03-01 15:30:49,554 INFO L78 Accepts]: Start accepts. Automaton has 13736 states and 38395 transitions. Word has length 259 [2022-03-01 15:30:49,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:49,554 INFO L470 AbstractCegarLoop]: Abstraction has 13736 states and 38395 transitions. [2022-03-01 15:30:49,555 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) [2022-03-01 15:30:49,555 INFO L276 IsEmpty]: Start isEmpty. Operand 13736 states and 38395 transitions. [2022-03-01 15:30:49,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-03-01 15:30:49,589 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:49,589 INFO L514 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] [2022-03-01 15:30:49,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 15:30:49,590 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:49,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:49,593 INFO L85 PathProgramCache]: Analyzing trace with hash 173473607, now seen corresponding path program 1 times [2022-03-01 15:30:49,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:49,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126415205] [2022-03-01 15:30:49,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:49,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:49,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:49,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:49,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126415205] [2022-03-01 15:30:49,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126415205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:49,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:49,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:30:49,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828341585] [2022-03-01 15:30:49,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:49,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:30:49,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:49,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:30:49,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:30:49,809 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) [2022-03-01 15:30:49,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:49,939 INFO L93 Difference]: Finished difference Result 14891 states and 41620 transitions. [2022-03-01 15:30:49,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:30:49,940 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 [2022-03-01 15:30:49,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:50,003 INFO L225 Difference]: With dead ends: 14891 [2022-03-01 15:30:50,004 INFO L226 Difference]: Without dead ends: 14891 [2022-03-01 15:30:50,005 INFO L932 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 [2022-03-01 15:30:50,007 INFO L933 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 [2022-03-01 15:30:50,007 INFO L934 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] [2022-03-01 15:30:50,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14891 states. [2022-03-01 15:30:50,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14891 to 13967. [2022-03-01 15:30:50,433 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) [2022-03-01 15:30:50,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13967 states to 13967 states and 39040 transitions. [2022-03-01 15:30:50,485 INFO L78 Accepts]: Start accepts. Automaton has 13967 states and 39040 transitions. Word has length 259 [2022-03-01 15:30:50,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:50,487 INFO L470 AbstractCegarLoop]: Abstraction has 13967 states and 39040 transitions. [2022-03-01 15:30:50,487 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) [2022-03-01 15:30:50,488 INFO L276 IsEmpty]: Start isEmpty. Operand 13967 states and 39040 transitions. [2022-03-01 15:30:50,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-03-01 15:30:50,538 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:50,538 INFO L514 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] [2022-03-01 15:30:50,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 15:30:50,539 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:50,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:50,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1506369353, now seen corresponding path program 1 times [2022-03-01 15:30:50,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:50,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545487154] [2022-03-01 15:30:50,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:50,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:50,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:50,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:50,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545487154] [2022-03-01 15:30:50,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545487154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:50,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:50,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:30:50,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783245909] [2022-03-01 15:30:50,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:50,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:30:50,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:50,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:30:50,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:30:50,670 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) [2022-03-01 15:30:50,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:50,856 INFO L93 Difference]: Finished difference Result 15157 states and 42350 transitions. [2022-03-01 15:30:50,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:30:50,857 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 [2022-03-01 15:30:50,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:50,898 INFO L225 Difference]: With dead ends: 15157 [2022-03-01 15:30:50,899 INFO L226 Difference]: Without dead ends: 15157 [2022-03-01 15:30:50,902 INFO L932 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 [2022-03-01 15:30:50,905 INFO L933 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 [2022-03-01 15:30:50,906 INFO L934 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] [2022-03-01 15:30:50,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15157 states. [2022-03-01 15:30:51,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15157 to 14205. [2022-03-01 15:30:51,226 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) [2022-03-01 15:30:51,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14205 states to 14205 states and 39702 transitions. [2022-03-01 15:30:51,260 INFO L78 Accepts]: Start accepts. Automaton has 14205 states and 39702 transitions. Word has length 261 [2022-03-01 15:30:51,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:51,261 INFO L470 AbstractCegarLoop]: Abstraction has 14205 states and 39702 transitions. [2022-03-01 15:30:51,261 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) [2022-03-01 15:30:51,261 INFO L276 IsEmpty]: Start isEmpty. Operand 14205 states and 39702 transitions. [2022-03-01 15:30:51,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:30:51,292 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:51,292 INFO L514 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] [2022-03-01 15:30:51,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 15:30:51,293 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:51,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:51,293 INFO L85 PathProgramCache]: Analyzing trace with hash -143658131, now seen corresponding path program 1 times [2022-03-01 15:30:51,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:51,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187021571] [2022-03-01 15:30:51,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:51,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:52,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:52,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:52,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187021571] [2022-03-01 15:30:52,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187021571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:52,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:52,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:30:52,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144075170] [2022-03-01 15:30:52,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:52,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:30:52,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:52,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:30:52,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:30:52,035 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) [2022-03-01 15:30:54,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:54,226 INFO L93 Difference]: Finished difference Result 35386 states and 98507 transitions. [2022-03-01 15:30:54,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:30:54,227 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 [2022-03-01 15:30:54,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:54,333 INFO L225 Difference]: With dead ends: 35386 [2022-03-01 15:30:54,333 INFO L226 Difference]: Without dead ends: 35386 [2022-03-01 15:30:54,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=889, Invalid=3271, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:30:54,341 INFO L933 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, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:54,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4137 Valid, 11072 Invalid, 2103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:30:54,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35386 states. [2022-03-01 15:30:54,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35386 to 16283. [2022-03-01 15:30:54,849 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) [2022-03-01 15:30:54,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16283 states to 16283 states and 45925 transitions. [2022-03-01 15:30:54,889 INFO L78 Accepts]: Start accepts. Automaton has 16283 states and 45925 transitions. Word has length 263 [2022-03-01 15:30:54,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:54,889 INFO L470 AbstractCegarLoop]: Abstraction has 16283 states and 45925 transitions. [2022-03-01 15:30:54,890 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) [2022-03-01 15:30:54,890 INFO L276 IsEmpty]: Start isEmpty. Operand 16283 states and 45925 transitions. [2022-03-01 15:30:54,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:30:54,933 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:54,934 INFO L514 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] [2022-03-01 15:30:54,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 15:30:54,934 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:54,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:54,935 INFO L85 PathProgramCache]: Analyzing trace with hash 973986709, now seen corresponding path program 2 times [2022-03-01 15:30:54,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:54,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121917557] [2022-03-01 15:30:54,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:54,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:55,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:55,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121917557] [2022-03-01 15:30:55,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121917557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:55,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:55,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:30:55,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210600410] [2022-03-01 15:30:55,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:55,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:30:55,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:55,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:30:55,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:30:55,509 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) [2022-03-01 15:30:57,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:57,565 INFO L93 Difference]: Finished difference Result 37590 states and 104987 transitions. [2022-03-01 15:30:57,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-01 15:30:57,566 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 [2022-03-01 15:30:57,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:57,680 INFO L225 Difference]: With dead ends: 37590 [2022-03-01 15:30:57,680 INFO L226 Difference]: Without dead ends: 37590 [2022-03-01 15:30:57,682 INFO L932 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 [2022-03-01 15:30:57,682 INFO L933 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 [2022-03-01 15:30:57,683 INFO L934 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] [2022-03-01 15:30:57,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37590 states. [2022-03-01 15:30:58,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37590 to 18351. [2022-03-01 15:30:58,264 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) [2022-03-01 15:30:58,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18351 states to 18351 states and 52004 transitions. [2022-03-01 15:30:58,310 INFO L78 Accepts]: Start accepts. Automaton has 18351 states and 52004 transitions. Word has length 263 [2022-03-01 15:30:58,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:58,311 INFO L470 AbstractCegarLoop]: Abstraction has 18351 states and 52004 transitions. [2022-03-01 15:30:58,311 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) [2022-03-01 15:30:58,311 INFO L276 IsEmpty]: Start isEmpty. Operand 18351 states and 52004 transitions. [2022-03-01 15:30:58,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:30:58,346 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:58,347 INFO L514 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] [2022-03-01 15:30:58,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 15:30:58,347 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:58,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:58,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1668153289, now seen corresponding path program 3 times [2022-03-01 15:30:58,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:58,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141955276] [2022-03-01 15:30:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:58,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:58,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:58,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:58,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141955276] [2022-03-01 15:30:58,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141955276] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:58,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:58,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:30:58,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745943684] [2022-03-01 15:30:58,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:58,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:30:58,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:58,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:30:58,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:30:58,763 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) [2022-03-01 15:31:00,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:00,578 INFO L93 Difference]: Finished difference Result 38359 states and 107175 transitions. [2022-03-01 15:31:00,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:31:00,578 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 [2022-03-01 15:31:00,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:00,680 INFO L225 Difference]: With dead ends: 38359 [2022-03-01 15:31:00,680 INFO L226 Difference]: Without dead ends: 38359 [2022-03-01 15:31:00,681 INFO L932 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 [2022-03-01 15:31:00,683 INFO L933 BasicCegarLoop]: 903 mSDtfsCounter, 3756 mSDsluCounter, 10336 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2022-03-01 15:31:00,683 INFO L934 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] [2022-03-01 15:31:00,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38359 states. [2022-03-01 15:31:01,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38359 to 18981. [2022-03-01 15:31:01,172 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) [2022-03-01 15:31:01,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18981 states to 18981 states and 53800 transitions. [2022-03-01 15:31:01,216 INFO L78 Accepts]: Start accepts. Automaton has 18981 states and 53800 transitions. Word has length 263 [2022-03-01 15:31:01,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:01,216 INFO L470 AbstractCegarLoop]: Abstraction has 18981 states and 53800 transitions. [2022-03-01 15:31:01,217 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) [2022-03-01 15:31:01,217 INFO L276 IsEmpty]: Start isEmpty. Operand 18981 states and 53800 transitions. [2022-03-01 15:31:01,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:01,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:01,248 INFO L514 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] [2022-03-01 15:31:01,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 15:31:01,248 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:01,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:01,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1822535429, now seen corresponding path program 4 times [2022-03-01 15:31:01,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:01,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886698775] [2022-03-01 15:31:01,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:01,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:01,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:01,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:01,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886698775] [2022-03-01 15:31:01,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886698775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:01,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:01,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:01,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131068843] [2022-03-01 15:31:01,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:01,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:01,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:01,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:01,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:01,700 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) [2022-03-01 15:31:03,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:03,524 INFO L93 Difference]: Finished difference Result 42882 states and 119153 transitions. [2022-03-01 15:31:03,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:31:03,525 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 [2022-03-01 15:31:03,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:03,627 INFO L225 Difference]: With dead ends: 42882 [2022-03-01 15:31:03,627 INFO L226 Difference]: Without dead ends: 42882 [2022-03-01 15:31:03,628 INFO L932 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 [2022-03-01 15:31:03,629 INFO L933 BasicCegarLoop]: 918 mSDtfsCounter, 3771 mSDsluCounter, 10659 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:03,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3771 Valid, 11446 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1978 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:31:03,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42882 states. [2022-03-01 15:31:04,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42882 to 19107. [2022-03-01 15:31:04,214 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) [2022-03-01 15:31:04,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19107 states to 19107 states and 54134 transitions. [2022-03-01 15:31:04,260 INFO L78 Accepts]: Start accepts. Automaton has 19107 states and 54134 transitions. Word has length 263 [2022-03-01 15:31:04,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:04,261 INFO L470 AbstractCegarLoop]: Abstraction has 19107 states and 54134 transitions. [2022-03-01 15:31:04,261 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) [2022-03-01 15:31:04,261 INFO L276 IsEmpty]: Start isEmpty. Operand 19107 states and 54134 transitions. [2022-03-01 15:31:04,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:04,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:04,294 INFO L514 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] [2022-03-01 15:31:04,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 15:31:04,294 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:04,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:04,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1735274983, now seen corresponding path program 5 times [2022-03-01 15:31:04,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:04,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178747088] [2022-03-01 15:31:04,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:04,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:04,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:04,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178747088] [2022-03-01 15:31:04,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178747088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:04,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:04,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:04,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997629662] [2022-03-01 15:31:04,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:04,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:04,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:04,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:04,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:04,721 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) [2022-03-01 15:31:06,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:06,156 INFO L93 Difference]: Finished difference Result 26309 states and 73525 transitions. [2022-03-01 15:31:06,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:31:06,156 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 [2022-03-01 15:31:06,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:06,216 INFO L225 Difference]: With dead ends: 26309 [2022-03-01 15:31:06,217 INFO L226 Difference]: Without dead ends: 26309 [2022-03-01 15:31:06,218 INFO L932 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 [2022-03-01 15:31:06,218 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 3060 mSDsluCounter, 10286 mSDsCounter, 0 mSdLazyCounter, 1901 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 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 [2022-03-01 15:31:06,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3060 Valid, 11028 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1901 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:31:06,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26309 states. [2022-03-01 15:31:06,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26309 to 19359. [2022-03-01 15:31:06,593 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) [2022-03-01 15:31:06,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19359 states to 19359 states and 54802 transitions. [2022-03-01 15:31:06,636 INFO L78 Accepts]: Start accepts. Automaton has 19359 states and 54802 transitions. Word has length 263 [2022-03-01 15:31:06,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:06,637 INFO L470 AbstractCegarLoop]: Abstraction has 19359 states and 54802 transitions. [2022-03-01 15:31:06,637 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) [2022-03-01 15:31:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand 19359 states and 54802 transitions. [2022-03-01 15:31:06,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:06,668 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:06,668 INFO L514 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] [2022-03-01 15:31:06,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 15:31:06,668 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:06,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:06,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1067695819, now seen corresponding path program 6 times [2022-03-01 15:31:06,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:06,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786695092] [2022-03-01 15:31:06,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:06,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:07,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:07,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786695092] [2022-03-01 15:31:07,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786695092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:07,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:07,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:07,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640260419] [2022-03-01 15:31:07,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:07,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:07,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:07,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:07,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:07,060 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) [2022-03-01 15:31:08,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:08,613 INFO L93 Difference]: Finished difference Result 30599 states and 84834 transitions. [2022-03-01 15:31:08,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:31:08,614 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 [2022-03-01 15:31:08,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:08,679 INFO L225 Difference]: With dead ends: 30599 [2022-03-01 15:31:08,679 INFO L226 Difference]: Without dead ends: 30599 [2022-03-01 15:31:08,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=711, Invalid=2829, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:31:08,680 INFO L933 BasicCegarLoop]: 913 mSDtfsCounter, 2963 mSDsluCounter, 10979 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2963 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 [2022-03-01 15:31:08,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2963 Valid, 11743 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:31:08,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30599 states. [2022-03-01 15:31:09,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30599 to 19492. [2022-03-01 15:31:09,074 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) [2022-03-01 15:31:09,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19492 states to 19492 states and 55097 transitions. [2022-03-01 15:31:09,117 INFO L78 Accepts]: Start accepts. Automaton has 19492 states and 55097 transitions. Word has length 263 [2022-03-01 15:31:09,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:09,117 INFO L470 AbstractCegarLoop]: Abstraction has 19492 states and 55097 transitions. [2022-03-01 15:31:09,118 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) [2022-03-01 15:31:09,118 INFO L276 IsEmpty]: Start isEmpty. Operand 19492 states and 55097 transitions. [2022-03-01 15:31:09,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:09,149 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:09,149 INFO L514 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] [2022-03-01 15:31:09,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 15:31:09,149 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:09,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:09,150 INFO L85 PathProgramCache]: Analyzing trace with hash 6835089, now seen corresponding path program 7 times [2022-03-01 15:31:09,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:09,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328453223] [2022-03-01 15:31:09,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:09,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:09,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:09,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328453223] [2022-03-01 15:31:09,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328453223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:09,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:09,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:09,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116114570] [2022-03-01 15:31:09,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:09,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:09,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:09,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:09,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:09,533 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) [2022-03-01 15:31:11,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:11,096 INFO L93 Difference]: Finished difference Result 40438 states and 113348 transitions. [2022-03-01 15:31:11,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:31:11,096 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 [2022-03-01 15:31:11,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:11,185 INFO L225 Difference]: With dead ends: 40438 [2022-03-01 15:31:11,185 INFO L226 Difference]: Without dead ends: 40438 [2022-03-01 15:31:11,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=648, Invalid=2658, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:31:11,187 INFO L933 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 [2022-03-01 15:31:11,187 INFO L934 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] [2022-03-01 15:31:11,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40438 states. [2022-03-01 15:31:11,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40438 to 19932. [2022-03-01 15:31:11,662 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) [2022-03-01 15:31:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19932 states to 19932 states and 56623 transitions. [2022-03-01 15:31:11,706 INFO L78 Accepts]: Start accepts. Automaton has 19932 states and 56623 transitions. Word has length 263 [2022-03-01 15:31:11,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:11,707 INFO L470 AbstractCegarLoop]: Abstraction has 19932 states and 56623 transitions. [2022-03-01 15:31:11,707 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) [2022-03-01 15:31:11,707 INFO L276 IsEmpty]: Start isEmpty. Operand 19932 states and 56623 transitions. [2022-03-01 15:31:11,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:11,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:11,738 INFO L514 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] [2022-03-01 15:31:11,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-01 15:31:11,738 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:11,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:11,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1124479929, now seen corresponding path program 8 times [2022-03-01 15:31:11,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:11,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025481954] [2022-03-01 15:31:11,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:11,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:12,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:12,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:12,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025481954] [2022-03-01 15:31:12,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025481954] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:12,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:12,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:12,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777805827] [2022-03-01 15:31:12,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:12,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:12,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:12,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:12,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:12,099 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) [2022-03-01 15:31:13,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:13,800 INFO L93 Difference]: Finished difference Result 41733 states and 117126 transitions. [2022-03-01 15:31:13,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:31:13,800 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 [2022-03-01 15:31:13,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:13,912 INFO L225 Difference]: With dead ends: 41733 [2022-03-01 15:31:13,912 INFO L226 Difference]: Without dead ends: 41733 [2022-03-01 15:31:13,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=748, Invalid=3034, Unknown=0, NotChecked=0, Total=3782 [2022-03-01 15:31:13,915 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 3046 mSDsluCounter, 11518 mSDsCounter, 0 mSdLazyCounter, 2158 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:13,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3046 Valid, 12286 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2158 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:31:13,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41733 states. [2022-03-01 15:31:14,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41733 to 20444. [2022-03-01 15:31:14,408 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) [2022-03-01 15:31:14,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20444 states to 20444 states and 58127 transitions. [2022-03-01 15:31:14,454 INFO L78 Accepts]: Start accepts. Automaton has 20444 states and 58127 transitions. Word has length 263 [2022-03-01 15:31:14,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:14,455 INFO L470 AbstractCegarLoop]: Abstraction has 20444 states and 58127 transitions. [2022-03-01 15:31:14,455 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) [2022-03-01 15:31:14,455 INFO L276 IsEmpty]: Start isEmpty. Operand 20444 states and 58127 transitions. [2022-03-01 15:31:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:14,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:14,486 INFO L514 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] [2022-03-01 15:31:14,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-01 15:31:14,487 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:14,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:14,487 INFO L85 PathProgramCache]: Analyzing trace with hash -2051743033, now seen corresponding path program 9 times [2022-03-01 15:31:14,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:14,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222390385] [2022-03-01 15:31:14,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:14,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:14,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:14,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:14,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222390385] [2022-03-01 15:31:14,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222390385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:14,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:14,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:14,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083603755] [2022-03-01 15:31:14,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:14,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:14,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:14,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:14,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:14,860 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) [2022-03-01 15:31:16,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:16,136 INFO L93 Difference]: Finished difference Result 27602 states and 77655 transitions. [2022-03-01 15:31:16,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:31:16,136 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 [2022-03-01 15:31:16,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:16,205 INFO L225 Difference]: With dead ends: 27602 [2022-03-01 15:31:16,205 INFO L226 Difference]: Without dead ends: 27602 [2022-03-01 15:31:16,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=609, Invalid=2583, Unknown=0, NotChecked=0, Total=3192 [2022-03-01 15:31:16,207 INFO L933 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, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:16,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2802 Valid, 9713 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:31:16,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27602 states. [2022-03-01 15:31:16,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27602 to 20444. [2022-03-01 15:31:16,573 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) [2022-03-01 15:31:16,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20444 states to 20444 states and 58127 transitions. [2022-03-01 15:31:16,621 INFO L78 Accepts]: Start accepts. Automaton has 20444 states and 58127 transitions. Word has length 263 [2022-03-01 15:31:16,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:16,621 INFO L470 AbstractCegarLoop]: Abstraction has 20444 states and 58127 transitions. [2022-03-01 15:31:16,621 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) [2022-03-01 15:31:16,622 INFO L276 IsEmpty]: Start isEmpty. Operand 20444 states and 58127 transitions. [2022-03-01 15:31:16,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:16,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:16,654 INFO L514 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] [2022-03-01 15:31:16,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-01 15:31:16,654 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:16,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:16,654 INFO L85 PathProgramCache]: Analyzing trace with hash 730362641, now seen corresponding path program 10 times [2022-03-01 15:31:16,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:16,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225881579] [2022-03-01 15:31:16,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:16,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:17,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:17,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:17,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225881579] [2022-03-01 15:31:17,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225881579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:17,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:17,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:17,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675297508] [2022-03-01 15:31:17,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:17,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:17,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:17,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:17,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:17,016 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) [2022-03-01 15:31:18,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:18,448 INFO L93 Difference]: Finished difference Result 41224 states and 115926 transitions. [2022-03-01 15:31:18,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:31:18,448 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 [2022-03-01 15:31:18,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:18,543 INFO L225 Difference]: With dead ends: 41224 [2022-03-01 15:31:18,544 INFO L226 Difference]: Without dead ends: 41224 [2022-03-01 15:31:18,545 INFO L932 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 [2022-03-01 15:31:18,545 INFO L933 BasicCegarLoop]: 753 mSDtfsCounter, 3306 mSDsluCounter, 10043 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-03-01 15:31:18,545 INFO L934 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] [2022-03-01 15:31:18,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41224 states. [2022-03-01 15:31:19,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41224 to 20768. [2022-03-01 15:31:19,098 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) [2022-03-01 15:31:19,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20768 states to 20768 states and 59270 transitions. [2022-03-01 15:31:19,144 INFO L78 Accepts]: Start accepts. Automaton has 20768 states and 59270 transitions. Word has length 263 [2022-03-01 15:31:19,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:19,144 INFO L470 AbstractCegarLoop]: Abstraction has 20768 states and 59270 transitions. [2022-03-01 15:31:19,144 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) [2022-03-01 15:31:19,145 INFO L276 IsEmpty]: Start isEmpty. Operand 20768 states and 59270 transitions. [2022-03-01 15:31:19,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:19,176 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:19,177 INFO L514 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] [2022-03-01 15:31:19,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-01 15:31:19,177 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:19,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:19,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1848007481, now seen corresponding path program 11 times [2022-03-01 15:31:19,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:19,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769756863] [2022-03-01 15:31:19,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:19,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:19,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:19,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769756863] [2022-03-01 15:31:19,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769756863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:19,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:19,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:19,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886064275] [2022-03-01 15:31:19,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:19,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:19,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:19,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:19,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:19,521 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) [2022-03-01 15:31:21,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:21,042 INFO L93 Difference]: Finished difference Result 42190 states and 118789 transitions. [2022-03-01 15:31:21,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:31:21,042 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 [2022-03-01 15:31:21,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:21,136 INFO L225 Difference]: With dead ends: 42190 [2022-03-01 15:31:21,136 INFO L226 Difference]: Without dead ends: 42190 [2022-03-01 15:31:21,138 INFO L932 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 [2022-03-01 15:31:21,138 INFO L933 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 [2022-03-01 15:31:21,138 INFO L934 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] [2022-03-01 15:31:21,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42190 states. [2022-03-01 15:31:21,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42190 to 20544. [2022-03-01 15:31:21,622 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) [2022-03-01 15:31:21,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20544 states to 20544 states and 58414 transitions. [2022-03-01 15:31:21,666 INFO L78 Accepts]: Start accepts. Automaton has 20544 states and 58414 transitions. Word has length 263 [2022-03-01 15:31:21,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:21,666 INFO L470 AbstractCegarLoop]: Abstraction has 20544 states and 58414 transitions. [2022-03-01 15:31:21,666 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) [2022-03-01 15:31:21,667 INFO L276 IsEmpty]: Start isEmpty. Operand 20544 states and 58414 transitions. [2022-03-01 15:31:21,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:21,696 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:21,696 INFO L514 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] [2022-03-01 15:31:21,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-01 15:31:21,697 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:21,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:21,697 INFO L85 PathProgramCache]: Analyzing trace with hash -16355817, now seen corresponding path program 12 times [2022-03-01 15:31:21,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:21,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279873640] [2022-03-01 15:31:21,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:21,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:22,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:22,037 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:22,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279873640] [2022-03-01 15:31:22,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279873640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:22,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:22,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:22,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427543259] [2022-03-01 15:31:22,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:22,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:22,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:22,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:22,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:22,039 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) [2022-03-01 15:31:23,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:23,125 INFO L93 Difference]: Finished difference Result 26756 states and 75278 transitions. [2022-03-01 15:31:23,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 15:31:23,126 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 [2022-03-01 15:31:23,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:23,188 INFO L225 Difference]: With dead ends: 26756 [2022-03-01 15:31:23,188 INFO L226 Difference]: Without dead ends: 26756 [2022-03-01 15:31:23,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=504, Invalid=2148, Unknown=0, NotChecked=0, Total=2652 [2022-03-01 15:31:23,190 INFO L933 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 [2022-03-01 15:31:23,190 INFO L934 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] [2022-03-01 15:31:23,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26756 states. [2022-03-01 15:31:23,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26756 to 20612. [2022-03-01 15:31:23,633 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) [2022-03-01 15:31:23,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20612 states to 20612 states and 58597 transitions. [2022-03-01 15:31:23,681 INFO L78 Accepts]: Start accepts. Automaton has 20612 states and 58597 transitions. Word has length 263 [2022-03-01 15:31:23,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:23,681 INFO L470 AbstractCegarLoop]: Abstraction has 20612 states and 58597 transitions. [2022-03-01 15:31:23,681 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) [2022-03-01 15:31:23,681 INFO L276 IsEmpty]: Start isEmpty. Operand 20612 states and 58597 transitions. [2022-03-01 15:31:23,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:23,713 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:23,714 INFO L514 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] [2022-03-01 15:31:23,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-01 15:31:23,714 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:23,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:23,714 INFO L85 PathProgramCache]: Analyzing trace with hash 476517939, now seen corresponding path program 13 times [2022-03-01 15:31:23,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:23,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000351765] [2022-03-01 15:31:23,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:23,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:24,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:24,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:24,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000351765] [2022-03-01 15:31:24,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000351765] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:24,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:24,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:24,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440659991] [2022-03-01 15:31:24,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:24,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:24,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:24,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:24,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:24,064 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) [2022-03-01 15:31:25,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:25,864 INFO L93 Difference]: Finished difference Result 59802 states and 167802 transitions. [2022-03-01 15:31:25,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:31:25,865 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 [2022-03-01 15:31:25,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:26,011 INFO L225 Difference]: With dead ends: 59802 [2022-03-01 15:31:26,011 INFO L226 Difference]: Without dead ends: 59802 [2022-03-01 15:31:26,012 INFO L932 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 [2022-03-01 15:31:26,013 INFO L933 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 [2022-03-01 15:31:26,013 INFO L934 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] [2022-03-01 15:31:26,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59802 states. [2022-03-01 15:31:26,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59802 to 22321. [2022-03-01 15:31:26,675 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) [2022-03-01 15:31:26,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22321 states to 22321 states and 63782 transitions. [2022-03-01 15:31:26,732 INFO L78 Accepts]: Start accepts. Automaton has 22321 states and 63782 transitions. Word has length 263 [2022-03-01 15:31:26,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:26,732 INFO L470 AbstractCegarLoop]: Abstraction has 22321 states and 63782 transitions. [2022-03-01 15:31:26,732 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) [2022-03-01 15:31:26,733 INFO L276 IsEmpty]: Start isEmpty. Operand 22321 states and 63782 transitions. [2022-03-01 15:31:26,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:26,770 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:26,771 INFO L514 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] [2022-03-01 15:31:26,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-01 15:31:26,771 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:26,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:26,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1594162779, now seen corresponding path program 14 times [2022-03-01 15:31:26,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:26,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675317952] [2022-03-01 15:31:26,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:26,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:27,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:27,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:27,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675317952] [2022-03-01 15:31:27,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675317952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:27,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:27,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:27,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673720916] [2022-03-01 15:31:27,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:27,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:27,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:27,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:27,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:27,118 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) [2022-03-01 15:31:29,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:29,220 INFO L93 Difference]: Finished difference Result 59202 states and 166291 transitions. [2022-03-01 15:31:29,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:31:29,221 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 [2022-03-01 15:31:29,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:29,351 INFO L225 Difference]: With dead ends: 59202 [2022-03-01 15:31:29,351 INFO L226 Difference]: Without dead ends: 59202 [2022-03-01 15:31:29,352 INFO L932 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 [2022-03-01 15:31:29,353 INFO L933 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 [2022-03-01 15:31:29,353 INFO L934 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] [2022-03-01 15:31:29,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59202 states. [2022-03-01 15:31:30,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59202 to 22321. [2022-03-01 15:31:30,214 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) [2022-03-01 15:31:30,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22321 states to 22321 states and 63782 transitions. [2022-03-01 15:31:30,264 INFO L78 Accepts]: Start accepts. Automaton has 22321 states and 63782 transitions. Word has length 263 [2022-03-01 15:31:30,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:30,265 INFO L470 AbstractCegarLoop]: Abstraction has 22321 states and 63782 transitions. [2022-03-01 15:31:30,265 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) [2022-03-01 15:31:30,265 INFO L276 IsEmpty]: Start isEmpty. Operand 22321 states and 63782 transitions. [2022-03-01 15:31:30,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:30,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:30,299 INFO L514 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] [2022-03-01 15:31:30,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-01 15:31:30,300 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:30,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:30,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1582060183, now seen corresponding path program 15 times [2022-03-01 15:31:30,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:30,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316460215] [2022-03-01 15:31:30,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:30,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:30,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:30,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316460215] [2022-03-01 15:31:30,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316460215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:30,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:30,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:30,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229495477] [2022-03-01 15:31:30,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:30,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:30,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:30,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:30,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:30,746 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) [2022-03-01 15:31:32,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:32,328 INFO L93 Difference]: Finished difference Result 46070 states and 129937 transitions. [2022-03-01 15:31:32,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:31:32,329 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 [2022-03-01 15:31:32,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:32,436 INFO L225 Difference]: With dead ends: 46070 [2022-03-01 15:31:32,436 INFO L226 Difference]: Without dead ends: 46070 [2022-03-01 15:31:32,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=725, Invalid=2935, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:31:32,437 INFO L933 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 [2022-03-01 15:31:32,437 INFO L934 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] [2022-03-01 15:31:32,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46070 states. [2022-03-01 15:31:33,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46070 to 22321. [2022-03-01 15:31:33,042 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) [2022-03-01 15:31:33,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22321 states to 22321 states and 63782 transitions. [2022-03-01 15:31:33,092 INFO L78 Accepts]: Start accepts. Automaton has 22321 states and 63782 transitions. Word has length 263 [2022-03-01 15:31:33,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:33,093 INFO L470 AbstractCegarLoop]: Abstraction has 22321 states and 63782 transitions. [2022-03-01 15:31:33,093 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) [2022-03-01 15:31:33,093 INFO L276 IsEmpty]: Start isEmpty. Operand 22321 states and 63782 transitions. [2022-03-01 15:31:33,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:33,126 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:33,126 INFO L514 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] [2022-03-01 15:31:33,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-01 15:31:33,126 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:33,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:33,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1622312059, now seen corresponding path program 16 times [2022-03-01 15:31:33,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:33,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497827568] [2022-03-01 15:31:33,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:33,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:33,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:33,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:33,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497827568] [2022-03-01 15:31:33,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497827568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:33,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:33,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:33,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212849471] [2022-03-01 15:31:33,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:33,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:33,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:33,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:33,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:33,507 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) [2022-03-01 15:31:35,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:35,192 INFO L93 Difference]: Finished difference Result 49176 states and 137978 transitions. [2022-03-01 15:31:35,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:31:35,193 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 [2022-03-01 15:31:35,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:35,298 INFO L225 Difference]: With dead ends: 49176 [2022-03-01 15:31:35,298 INFO L226 Difference]: Without dead ends: 49176 [2022-03-01 15:31:35,299 INFO L932 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 [2022-03-01 15:31:35,299 INFO L933 BasicCegarLoop]: 946 mSDtfsCounter, 2792 mSDsluCounter, 12132 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-03-01 15:31:35,300 INFO L934 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] [2022-03-01 15:31:35,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49176 states. [2022-03-01 15:31:35,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49176 to 22321. [2022-03-01 15:31:35,876 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) [2022-03-01 15:31:35,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22321 states to 22321 states and 63782 transitions. [2022-03-01 15:31:35,927 INFO L78 Accepts]: Start accepts. Automaton has 22321 states and 63782 transitions. Word has length 263 [2022-03-01 15:31:35,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:35,927 INFO L470 AbstractCegarLoop]: Abstraction has 22321 states and 63782 transitions. [2022-03-01 15:31:35,927 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) [2022-03-01 15:31:35,927 INFO L276 IsEmpty]: Start isEmpty. Operand 22321 states and 63782 transitions. [2022-03-01 15:31:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:36,085 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:36,086 INFO L514 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] [2022-03-01 15:31:36,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-01 15:31:36,086 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:36,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:36,086 INFO L85 PathProgramCache]: Analyzing trace with hash 870170709, now seen corresponding path program 17 times [2022-03-01 15:31:36,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:36,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093184760] [2022-03-01 15:31:36,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:36,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:36,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:36,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:36,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093184760] [2022-03-01 15:31:36,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093184760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:36,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:36,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:36,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446986789] [2022-03-01 15:31:36,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:36,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:36,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:36,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:36,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:36,470 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) [2022-03-01 15:31:38,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:38,265 INFO L93 Difference]: Finished difference Result 43648 states and 123045 transitions. [2022-03-01 15:31:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:31:38,266 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 [2022-03-01 15:31:38,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:38,360 INFO L225 Difference]: With dead ends: 43648 [2022-03-01 15:31:38,361 INFO L226 Difference]: Without dead ends: 43648 [2022-03-01 15:31:38,361 INFO L932 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 [2022-03-01 15:31:38,362 INFO L933 BasicCegarLoop]: 951 mSDtfsCounter, 3425 mSDsluCounter, 11496 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:38,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3425 Valid, 12275 Invalid, 2337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:31:38,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43648 states. [2022-03-01 15:31:38,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43648 to 22749. [2022-03-01 15:31:38,896 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) [2022-03-01 15:31:38,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22749 states to 22749 states and 65255 transitions. [2022-03-01 15:31:38,951 INFO L78 Accepts]: Start accepts. Automaton has 22749 states and 65255 transitions. Word has length 263 [2022-03-01 15:31:38,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:38,951 INFO L470 AbstractCegarLoop]: Abstraction has 22749 states and 65255 transitions. [2022-03-01 15:31:38,952 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) [2022-03-01 15:31:38,952 INFO L276 IsEmpty]: Start isEmpty. Operand 22749 states and 65255 transitions. [2022-03-01 15:31:38,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:38,990 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:38,990 INFO L514 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] [2022-03-01 15:31:38,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-01 15:31:38,991 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:38,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:38,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1987815549, now seen corresponding path program 18 times [2022-03-01 15:31:38,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:38,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990157338] [2022-03-01 15:31:38,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:38,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:39,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:39,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990157338] [2022-03-01 15:31:39,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990157338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:39,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:39,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:39,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191358302] [2022-03-01 15:31:39,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:39,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:39,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:39,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:39,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:39,494 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) [2022-03-01 15:31:41,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:41,477 INFO L93 Difference]: Finished difference Result 46301 states and 130842 transitions. [2022-03-01 15:31:41,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:31:41,477 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 [2022-03-01 15:31:41,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:41,575 INFO L225 Difference]: With dead ends: 46301 [2022-03-01 15:31:41,575 INFO L226 Difference]: Without dead ends: 46301 [2022-03-01 15:31:41,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=799, Invalid=3233, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:31:41,576 INFO L933 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, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:41,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3301 Valid, 13055 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:31:41,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46301 states. [2022-03-01 15:31:42,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46301 to 22449. [2022-03-01 15:31:42,207 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) [2022-03-01 15:31:42,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22449 states to 22449 states and 64182 transitions. [2022-03-01 15:31:42,256 INFO L78 Accepts]: Start accepts. Automaton has 22449 states and 64182 transitions. Word has length 263 [2022-03-01 15:31:42,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:42,257 INFO L470 AbstractCegarLoop]: Abstraction has 22449 states and 64182 transitions. [2022-03-01 15:31:42,257 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) [2022-03-01 15:31:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 22449 states and 64182 transitions. [2022-03-01 15:31:42,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:42,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:42,291 INFO L514 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] [2022-03-01 15:31:42,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-01 15:31:42,291 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:42,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:42,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1188407413, now seen corresponding path program 19 times [2022-03-01 15:31:42,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:42,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967935219] [2022-03-01 15:31:42,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:42,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:42,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:42,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:42,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967935219] [2022-03-01 15:31:42,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967935219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:42,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:42,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:42,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184199501] [2022-03-01 15:31:42,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:42,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:42,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:42,662 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) [2022-03-01 15:31:44,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:44,311 INFO L93 Difference]: Finished difference Result 46593 states and 131721 transitions. [2022-03-01 15:31:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:31:44,312 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 [2022-03-01 15:31:44,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:44,403 INFO L225 Difference]: With dead ends: 46593 [2022-03-01 15:31:44,403 INFO L226 Difference]: Without dead ends: 46593 [2022-03-01 15:31:44,404 INFO L932 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 [2022-03-01 15:31:44,404 INFO L933 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:44,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2979 Valid, 12414 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:31:44,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46593 states. [2022-03-01 15:31:44,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46593 to 22449. [2022-03-01 15:31:45,026 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) [2022-03-01 15:31:45,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22449 states to 22449 states and 64182 transitions. [2022-03-01 15:31:45,079 INFO L78 Accepts]: Start accepts. Automaton has 22449 states and 64182 transitions. Word has length 263 [2022-03-01 15:31:45,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:45,079 INFO L470 AbstractCegarLoop]: Abstraction has 22449 states and 64182 transitions. [2022-03-01 15:31:45,079 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) [2022-03-01 15:31:45,079 INFO L276 IsEmpty]: Start isEmpty. Operand 22449 states and 64182 transitions. [2022-03-01 15:31:45,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:45,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:45,114 INFO L514 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] [2022-03-01 15:31:45,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-01 15:31:45,115 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:45,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:45,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1228659289, now seen corresponding path program 20 times [2022-03-01 15:31:45,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:45,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323375306] [2022-03-01 15:31:45,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:45,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:45,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:45,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:45,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323375306] [2022-03-01 15:31:45,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323375306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:45,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:45,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:45,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597192037] [2022-03-01 15:31:45,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:45,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:45,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:45,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:45,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:45,515 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) [2022-03-01 15:31:47,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:47,300 INFO L93 Difference]: Finished difference Result 50423 states and 141736 transitions. [2022-03-01 15:31:47,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:31:47,301 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 [2022-03-01 15:31:47,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:47,418 INFO L225 Difference]: With dead ends: 50423 [2022-03-01 15:31:47,418 INFO L226 Difference]: Without dead ends: 50423 [2022-03-01 15:31:47,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=738, Invalid=3044, Unknown=0, NotChecked=0, Total=3782 [2022-03-01 15:31:47,419 INFO L933 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 [2022-03-01 15:31:47,419 INFO L934 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] [2022-03-01 15:31:47,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50423 states. [2022-03-01 15:31:48,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50423 to 22449. [2022-03-01 15:31:48,112 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) [2022-03-01 15:31:48,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22449 states to 22449 states and 64182 transitions. [2022-03-01 15:31:48,166 INFO L78 Accepts]: Start accepts. Automaton has 22449 states and 64182 transitions. Word has length 263 [2022-03-01 15:31:48,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:48,166 INFO L470 AbstractCegarLoop]: Abstraction has 22449 states and 64182 transitions. [2022-03-01 15:31:48,166 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) [2022-03-01 15:31:48,167 INFO L276 IsEmpty]: Start isEmpty. Operand 22449 states and 64182 transitions. [2022-03-01 15:31:48,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:48,204 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:48,204 INFO L514 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] [2022-03-01 15:31:48,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-01 15:31:48,204 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:48,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:48,204 INFO L85 PathProgramCache]: Analyzing trace with hash 528249413, now seen corresponding path program 21 times [2022-03-01 15:31:48,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:48,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920082889] [2022-03-01 15:31:48,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:48,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:48,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:48,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920082889] [2022-03-01 15:31:48,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920082889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:48,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:48,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-01 15:31:48,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525110095] [2022-03-01 15:31:48,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:48,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-01 15:31:48,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:48,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-01 15:31:48,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:31:48,563 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) [2022-03-01 15:31:49,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:49,819 INFO L93 Difference]: Finished difference Result 30092 states and 84724 transitions. [2022-03-01 15:31:49,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:31:49,820 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 [2022-03-01 15:31:49,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:49,883 INFO L225 Difference]: With dead ends: 30092 [2022-03-01 15:31:49,883 INFO L226 Difference]: Without dead ends: 30092 [2022-03-01 15:31:49,884 INFO L932 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 [2022-03-01 15:31:49,884 INFO L933 BasicCegarLoop]: 815 mSDtfsCounter, 2596 mSDsluCounter, 10055 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2596 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 [2022-03-01 15:31:49,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2596 Valid, 10740 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:31:50,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30092 states. [2022-03-01 15:31:50,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30092 to 22512. [2022-03-01 15:31:50,367 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) [2022-03-01 15:31:50,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22512 states to 22512 states and 64349 transitions. [2022-03-01 15:31:50,418 INFO L78 Accepts]: Start accepts. Automaton has 22512 states and 64349 transitions. Word has length 263 [2022-03-01 15:31:50,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:50,418 INFO L470 AbstractCegarLoop]: Abstraction has 22512 states and 64349 transitions. [2022-03-01 15:31:50,419 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) [2022-03-01 15:31:50,419 INFO L276 IsEmpty]: Start isEmpty. Operand 22512 states and 64349 transitions. [2022-03-01 15:31:50,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:50,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:50,455 INFO L514 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] [2022-03-01 15:31:50,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-01 15:31:50,455 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:50,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:50,455 INFO L85 PathProgramCache]: Analyzing trace with hash -2112004153, now seen corresponding path program 22 times [2022-03-01 15:31:50,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:50,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352173373] [2022-03-01 15:31:50,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:50,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:50,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:50,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:50,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352173373] [2022-03-01 15:31:50,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352173373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:50,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:50,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:31:50,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640796578] [2022-03-01 15:31:50,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:50,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:31:50,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:50,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:31:50,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:31:50,654 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) [2022-03-01 15:31:52,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:52,235 INFO L93 Difference]: Finished difference Result 61037 states and 171879 transitions. [2022-03-01 15:31:52,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:31:52,236 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 [2022-03-01 15:31:52,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:52,400 INFO L225 Difference]: With dead ends: 61037 [2022-03-01 15:31:52,400 INFO L226 Difference]: Without dead ends: 61037 [2022-03-01 15:31:52,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=655, Invalid=2315, Unknown=0, NotChecked=0, Total=2970 [2022-03-01 15:31:52,401 INFO L933 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:52,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3138 Valid, 9226 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:31:52,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61037 states. [2022-03-01 15:31:53,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61037 to 22908. [2022-03-01 15:31:53,180 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) [2022-03-01 15:31:53,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22908 states to 22908 states and 65742 transitions. [2022-03-01 15:31:53,237 INFO L78 Accepts]: Start accepts. Automaton has 22908 states and 65742 transitions. Word has length 263 [2022-03-01 15:31:53,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:53,237 INFO L470 AbstractCegarLoop]: Abstraction has 22908 states and 65742 transitions. [2022-03-01 15:31:53,237 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) [2022-03-01 15:31:53,237 INFO L276 IsEmpty]: Start isEmpty. Operand 22908 states and 65742 transitions. [2022-03-01 15:31:53,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:53,272 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:53,272 INFO L514 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] [2022-03-01 15:31:53,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-01 15:31:53,273 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:53,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:53,273 INFO L85 PathProgramCache]: Analyzing trace with hash -994359313, now seen corresponding path program 23 times [2022-03-01 15:31:53,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:53,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375181145] [2022-03-01 15:31:53,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:53,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:53,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:53,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:53,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375181145] [2022-03-01 15:31:53,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375181145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:53,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:53,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:31:53,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587006943] [2022-03-01 15:31:53,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:53,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:31:53,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:53,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:31:53,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:31:53,480 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) [2022-03-01 15:31:55,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:55,029 INFO L93 Difference]: Finished difference Result 60962 states and 171964 transitions. [2022-03-01 15:31:55,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:31:55,029 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 [2022-03-01 15:31:55,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:55,176 INFO L225 Difference]: With dead ends: 60962 [2022-03-01 15:31:55,176 INFO L226 Difference]: Without dead ends: 60962 [2022-03-01 15:31:55,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=666, Invalid=2414, Unknown=0, NotChecked=0, Total=3080 [2022-03-01 15:31:55,177 INFO L933 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 [2022-03-01 15:31:55,177 INFO L934 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] [2022-03-01 15:31:55,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60962 states. [2022-03-01 15:31:55,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60962 to 22580. [2022-03-01 15:31:55,940 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) [2022-03-01 15:31:55,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22580 states to 22580 states and 64548 transitions. [2022-03-01 15:31:55,993 INFO L78 Accepts]: Start accepts. Automaton has 22580 states and 64548 transitions. Word has length 263 [2022-03-01 15:31:55,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:55,993 INFO L470 AbstractCegarLoop]: Abstraction has 22580 states and 64548 transitions. [2022-03-01 15:31:55,994 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) [2022-03-01 15:31:55,994 INFO L276 IsEmpty]: Start isEmpty. Operand 22580 states and 64548 transitions. [2022-03-01 15:31:56,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:56,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:56,030 INFO L514 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] [2022-03-01 15:31:56,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-01 15:31:56,030 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:56,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:56,030 INFO L85 PathProgramCache]: Analyzing trace with hash 124385021, now seen corresponding path program 24 times [2022-03-01 15:31:56,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:56,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450037405] [2022-03-01 15:31:56,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:56,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:56,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:56,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:56,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450037405] [2022-03-01 15:31:56,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450037405] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:56,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:56,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:31:56,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132551070] [2022-03-01 15:31:56,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:56,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:31:56,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:56,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:31:56,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:31:56,221 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) [2022-03-01 15:31:57,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:57,502 INFO L93 Difference]: Finished difference Result 45506 states and 128438 transitions. [2022-03-01 15:31:57,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:31:57,503 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 [2022-03-01 15:31:57,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:57,605 INFO L225 Difference]: With dead ends: 45506 [2022-03-01 15:31:57,606 INFO L226 Difference]: Without dead ends: 45506 [2022-03-01 15:31:57,606 INFO L932 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 [2022-03-01 15:31:57,607 INFO L933 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 [2022-03-01 15:31:57,607 INFO L934 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] [2022-03-01 15:31:57,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45506 states. [2022-03-01 15:31:58,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45506 to 22580. [2022-03-01 15:31:58,285 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) [2022-03-01 15:31:58,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22580 states to 22580 states and 64548 transitions. [2022-03-01 15:31:58,340 INFO L78 Accepts]: Start accepts. Automaton has 22580 states and 64548 transitions. Word has length 263 [2022-03-01 15:31:58,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:58,340 INFO L470 AbstractCegarLoop]: Abstraction has 22580 states and 64548 transitions. [2022-03-01 15:31:58,340 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) [2022-03-01 15:31:58,340 INFO L276 IsEmpty]: Start isEmpty. Operand 22580 states and 64548 transitions. [2022-03-01 15:31:58,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:31:58,379 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:58,379 INFO L514 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] [2022-03-01 15:31:58,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-01 15:31:58,379 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:58,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:58,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1388476601, now seen corresponding path program 25 times [2022-03-01 15:31:58,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:58,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549564409] [2022-03-01 15:31:58,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:58,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:58,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:58,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:58,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549564409] [2022-03-01 15:31:58,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549564409] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:58,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:58,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:31:58,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547954275] [2022-03-01 15:31:58,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:58,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:31:58,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:58,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:31:58,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:31:58,604 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) [2022-03-01 15:32:00,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:00,288 INFO L93 Difference]: Finished difference Result 61268 states and 172545 transitions. [2022-03-01 15:32:00,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:32:00,289 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 [2022-03-01 15:32:00,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:00,433 INFO L225 Difference]: With dead ends: 61268 [2022-03-01 15:32:00,433 INFO L226 Difference]: Without dead ends: 61268 [2022-03-01 15:32:00,433 INFO L932 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 [2022-03-01 15:32:00,434 INFO L933 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 [2022-03-01 15:32:00,434 INFO L934 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] [2022-03-01 15:32:00,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61268 states. [2022-03-01 15:32:01,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61268 to 22940. [2022-03-01 15:32:01,148 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) [2022-03-01 15:32:01,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22940 states to 22940 states and 65842 transitions. [2022-03-01 15:32:01,197 INFO L78 Accepts]: Start accepts. Automaton has 22940 states and 65842 transitions. Word has length 263 [2022-03-01 15:32:01,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:01,197 INFO L470 AbstractCegarLoop]: Abstraction has 22940 states and 65842 transitions. [2022-03-01 15:32:01,197 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) [2022-03-01 15:32:01,197 INFO L276 IsEmpty]: Start isEmpty. Operand 22940 states and 65842 transitions. [2022-03-01 15:32:01,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:01,233 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:01,233 INFO L514 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] [2022-03-01 15:32:01,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-01 15:32:01,234 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:01,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:01,234 INFO L85 PathProgramCache]: Analyzing trace with hash -270831761, now seen corresponding path program 26 times [2022-03-01 15:32:01,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:01,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010337929] [2022-03-01 15:32:01,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:01,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:01,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:01,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010337929] [2022-03-01 15:32:01,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010337929] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:01,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:01,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:01,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444916679] [2022-03-01 15:32:01,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:01,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:01,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:01,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:01,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:01,428 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) [2022-03-01 15:32:03,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:03,013 INFO L93 Difference]: Finished difference Result 60996 states and 172066 transitions. [2022-03-01 15:32:03,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:32:03,013 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 [2022-03-01 15:32:03,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:03,153 INFO L225 Difference]: With dead ends: 60996 [2022-03-01 15:32:03,153 INFO L226 Difference]: Without dead ends: 60996 [2022-03-01 15:32:03,154 INFO L932 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 [2022-03-01 15:32:03,154 INFO L933 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 [2022-03-01 15:32:03,154 INFO L934 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] [2022-03-01 15:32:03,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60996 states. [2022-03-01 15:32:03,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60996 to 22616. [2022-03-01 15:32:03,906 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) [2022-03-01 15:32:03,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22616 states to 22616 states and 64663 transitions. [2022-03-01 15:32:03,960 INFO L78 Accepts]: Start accepts. Automaton has 22616 states and 64663 transitions. Word has length 263 [2022-03-01 15:32:03,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:03,960 INFO L470 AbstractCegarLoop]: Abstraction has 22616 states and 64663 transitions. [2022-03-01 15:32:03,961 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) [2022-03-01 15:32:03,961 INFO L276 IsEmpty]: Start isEmpty. Operand 22616 states and 64663 transitions. [2022-03-01 15:32:04,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:04,107 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:04,107 INFO L514 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] [2022-03-01 15:32:04,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-01 15:32:04,108 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:04,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:04,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2135195059, now seen corresponding path program 27 times [2022-03-01 15:32:04,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:04,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958394237] [2022-03-01 15:32:04,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:04,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:04,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:04,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:04,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958394237] [2022-03-01 15:32:04,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958394237] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:04,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:04,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:04,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932909228] [2022-03-01 15:32:04,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:04,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:04,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:04,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:04,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:04,325 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) [2022-03-01 15:32:05,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:05,611 INFO L93 Difference]: Finished difference Result 46480 states and 131072 transitions. [2022-03-01 15:32:05,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:32:05,612 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 [2022-03-01 15:32:05,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:05,708 INFO L225 Difference]: With dead ends: 46480 [2022-03-01 15:32:05,708 INFO L226 Difference]: Without dead ends: 46480 [2022-03-01 15:32:05,708 INFO L932 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 [2022-03-01 15:32:05,713 INFO L933 BasicCegarLoop]: 837 mSDtfsCounter, 2397 mSDsluCounter, 8232 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:05,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2397 Valid, 8947 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:32:05,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46480 states. [2022-03-01 15:32:06,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46480 to 22676. [2022-03-01 15:32:06,331 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) [2022-03-01 15:32:06,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22676 states to 22676 states and 64824 transitions. [2022-03-01 15:32:06,383 INFO L78 Accepts]: Start accepts. Automaton has 22676 states and 64824 transitions. Word has length 263 [2022-03-01 15:32:06,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:06,383 INFO L470 AbstractCegarLoop]: Abstraction has 22676 states and 64824 transitions. [2022-03-01 15:32:06,383 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) [2022-03-01 15:32:06,383 INFO L276 IsEmpty]: Start isEmpty. Operand 22676 states and 64824 transitions. [2022-03-01 15:32:06,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:06,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:06,419 INFO L514 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] [2022-03-01 15:32:06,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-01 15:32:06,420 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:06,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:06,420 INFO L85 PathProgramCache]: Analyzing trace with hash 990241513, now seen corresponding path program 28 times [2022-03-01 15:32:06,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:06,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826449809] [2022-03-01 15:32:06,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:06,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:06,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:06,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:06,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826449809] [2022-03-01 15:32:06,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826449809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:06,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:06,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:06,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927461155] [2022-03-01 15:32:06,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:06,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:06,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:06,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:06,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:06,616 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) [2022-03-01 15:32:08,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:08,393 INFO L93 Difference]: Finished difference Result 61028 states and 171893 transitions. [2022-03-01 15:32:08,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-01 15:32:08,394 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 [2022-03-01 15:32:08,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:08,548 INFO L225 Difference]: With dead ends: 61028 [2022-03-01 15:32:08,548 INFO L226 Difference]: Without dead ends: 61028 [2022-03-01 15:32:08,548 INFO L932 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 [2022-03-01 15:32:08,549 INFO L933 BasicCegarLoop]: 1003 mSDtfsCounter, 3867 mSDsluCounter, 9302 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-03-01 15:32:08,549 INFO L934 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] [2022-03-01 15:32:08,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61028 states. [2022-03-01 15:32:09,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61028 to 23108. [2022-03-01 15:32:09,215 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) [2022-03-01 15:32:09,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23108 states to 23108 states and 66348 transitions. [2022-03-01 15:32:09,265 INFO L78 Accepts]: Start accepts. Automaton has 23108 states and 66348 transitions. Word has length 263 [2022-03-01 15:32:09,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:09,265 INFO L470 AbstractCegarLoop]: Abstraction has 23108 states and 66348 transitions. [2022-03-01 15:32:09,265 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) [2022-03-01 15:32:09,265 INFO L276 IsEmpty]: Start isEmpty. Operand 23108 states and 66348 transitions. [2022-03-01 15:32:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:09,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:09,299 INFO L514 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] [2022-03-01 15:32:09,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-01 15:32:09,299 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:09,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:09,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2107886353, now seen corresponding path program 29 times [2022-03-01 15:32:09,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:09,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529038168] [2022-03-01 15:32:09,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:09,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:09,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:09,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:09,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529038168] [2022-03-01 15:32:09,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529038168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:09,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:09,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:09,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280755805] [2022-03-01 15:32:09,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:09,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:09,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:09,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:09,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:09,512 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) [2022-03-01 15:32:11,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:11,293 INFO L93 Difference]: Finished difference Result 60756 states and 171414 transitions. [2022-03-01 15:32:11,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-01 15:32:11,294 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 [2022-03-01 15:32:11,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:11,471 INFO L225 Difference]: With dead ends: 60756 [2022-03-01 15:32:11,471 INFO L226 Difference]: Without dead ends: 60756 [2022-03-01 15:32:11,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=834, Invalid=2948, Unknown=0, NotChecked=0, Total=3782 [2022-03-01 15:32:11,473 INFO L933 BasicCegarLoop]: 980 mSDtfsCounter, 3633 mSDsluCounter, 8914 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:11,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3633 Valid, 9795 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1818 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:32:11,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60756 states. [2022-03-01 15:32:12,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60756 to 22908. [2022-03-01 15:32:12,197 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) [2022-03-01 15:32:12,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22908 states to 22908 states and 65498 transitions. [2022-03-01 15:32:12,248 INFO L78 Accepts]: Start accepts. Automaton has 22908 states and 65498 transitions. Word has length 263 [2022-03-01 15:32:12,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:12,248 INFO L470 AbstractCegarLoop]: Abstraction has 22908 states and 65498 transitions. [2022-03-01 15:32:12,248 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) [2022-03-01 15:32:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 22908 states and 65498 transitions. [2022-03-01 15:32:12,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:12,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:12,284 INFO L514 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] [2022-03-01 15:32:12,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-01 15:32:12,285 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:12,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:12,286 INFO L85 PathProgramCache]: Analyzing trace with hash 243523055, now seen corresponding path program 30 times [2022-03-01 15:32:12,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:12,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075157103] [2022-03-01 15:32:12,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:12,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:12,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:12,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075157103] [2022-03-01 15:32:12,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075157103] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:12,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:12,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:12,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240185829] [2022-03-01 15:32:12,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:12,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:12,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:12,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:12,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:12,470 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) [2022-03-01 15:32:13,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:13,904 INFO L93 Difference]: Finished difference Result 46696 states and 131670 transitions. [2022-03-01 15:32:13,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:32:13,905 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 [2022-03-01 15:32:13,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:14,005 INFO L225 Difference]: With dead ends: 46696 [2022-03-01 15:32:14,006 INFO L226 Difference]: Without dead ends: 46696 [2022-03-01 15:32:14,006 INFO L932 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 [2022-03-01 15:32:14,007 INFO L933 BasicCegarLoop]: 902 mSDtfsCounter, 2851 mSDsluCounter, 8565 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:14,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2851 Valid, 9323 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:32:14,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46696 states. [2022-03-01 15:32:14,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46696 to 22876. [2022-03-01 15:32:14,613 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) [2022-03-01 15:32:14,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22876 states to 22876 states and 65398 transitions. [2022-03-01 15:32:14,668 INFO L78 Accepts]: Start accepts. Automaton has 22876 states and 65398 transitions. Word has length 263 [2022-03-01 15:32:14,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:14,668 INFO L470 AbstractCegarLoop]: Abstraction has 22876 states and 65398 transitions. [2022-03-01 15:32:14,668 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) [2022-03-01 15:32:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 22876 states and 65398 transitions. [2022-03-01 15:32:14,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:14,704 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:14,705 INFO L514 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] [2022-03-01 15:32:14,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-01 15:32:14,705 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:14,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:14,705 INFO L85 PathProgramCache]: Analyzing trace with hash -361870581, now seen corresponding path program 31 times [2022-03-01 15:32:14,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:14,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300135676] [2022-03-01 15:32:14,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:14,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:14,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:14,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300135676] [2022-03-01 15:32:14,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300135676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:14,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:14,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:14,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79251360] [2022-03-01 15:32:14,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:14,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:14,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:14,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:14,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:14,905 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) [2022-03-01 15:32:16,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:16,478 INFO L93 Difference]: Finished difference Result 50706 states and 142441 transitions. [2022-03-01 15:32:16,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:32:16,478 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 [2022-03-01 15:32:16,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:16,596 INFO L225 Difference]: With dead ends: 50706 [2022-03-01 15:32:16,596 INFO L226 Difference]: Without dead ends: 50706 [2022-03-01 15:32:16,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=730, Invalid=2576, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:32:16,597 INFO L933 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:16,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3029 Valid, 9841 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:32:16,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50706 states. [2022-03-01 15:32:17,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50706 to 22996. [2022-03-01 15:32:17,243 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) [2022-03-01 15:32:17,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22996 states to 22996 states and 65720 transitions. [2022-03-01 15:32:17,298 INFO L78 Accepts]: Start accepts. Automaton has 22996 states and 65720 transitions. Word has length 263 [2022-03-01 15:32:17,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:17,299 INFO L470 AbstractCegarLoop]: Abstraction has 22996 states and 65720 transitions. [2022-03-01 15:32:17,299 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) [2022-03-01 15:32:17,299 INFO L276 IsEmpty]: Start isEmpty. Operand 22996 states and 65720 transitions. [2022-03-01 15:32:17,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:17,335 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:17,336 INFO L514 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] [2022-03-01 15:32:17,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-01 15:32:17,336 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:17,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:17,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1637279673, now seen corresponding path program 32 times [2022-03-01 15:32:17,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:17,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144651166] [2022-03-01 15:32:17,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:17,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:17,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:17,542 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:17,542 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144651166] [2022-03-01 15:32:17,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144651166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:17,542 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:17,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:17,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918531338] [2022-03-01 15:32:17,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:17,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:17,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:17,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:17,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:17,543 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) [2022-03-01 15:32:19,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:19,130 INFO L93 Difference]: Finished difference Result 62065 states and 174742 transitions. [2022-03-01 15:32:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:32:19,130 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 [2022-03-01 15:32:19,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:19,282 INFO L225 Difference]: With dead ends: 62065 [2022-03-01 15:32:19,282 INFO L226 Difference]: Without dead ends: 62065 [2022-03-01 15:32:19,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=693, Invalid=2499, Unknown=0, NotChecked=0, Total=3192 [2022-03-01 15:32:19,283 INFO L933 BasicCegarLoop]: 941 mSDtfsCounter, 3267 mSDsluCounter, 8258 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:19,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3267 Valid, 9073 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:32:19,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62065 states. [2022-03-01 15:32:19,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62065 to 23368. [2022-03-01 15:32:20,001 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) [2022-03-01 15:32:20,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23368 states to 23368 states and 67047 transitions. [2022-03-01 15:32:20,177 INFO L78 Accepts]: Start accepts. Automaton has 23368 states and 67047 transitions. Word has length 263 [2022-03-01 15:32:20,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:20,178 INFO L470 AbstractCegarLoop]: Abstraction has 23368 states and 67047 transitions. [2022-03-01 15:32:20,178 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) [2022-03-01 15:32:20,178 INFO L276 IsEmpty]: Start isEmpty. Operand 23368 states and 67047 transitions. [2022-03-01 15:32:20,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:20,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:20,214 INFO L514 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] [2022-03-01 15:32:20,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-01 15:32:20,215 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:20,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:20,215 INFO L85 PathProgramCache]: Analyzing trace with hash -519634833, now seen corresponding path program 33 times [2022-03-01 15:32:20,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:20,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458081271] [2022-03-01 15:32:20,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:20,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:20,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:20,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:20,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458081271] [2022-03-01 15:32:20,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458081271] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:20,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:20,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:20,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60722290] [2022-03-01 15:32:20,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:20,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:20,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:20,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:20,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:20,441 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) [2022-03-01 15:32:22,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:22,112 INFO L93 Difference]: Finished difference Result 61990 states and 174827 transitions. [2022-03-01 15:32:22,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:32:22,112 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 [2022-03-01 15:32:22,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:22,260 INFO L225 Difference]: With dead ends: 61990 [2022-03-01 15:32:22,260 INFO L226 Difference]: Without dead ends: 61990 [2022-03-01 15:32:22,261 INFO L932 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 [2022-03-01 15:32:22,261 INFO L933 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, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:22,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2739 Valid, 10627 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:32:22,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61990 states. [2022-03-01 15:32:22,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61990 to 23040. [2022-03-01 15:32:22,970 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) [2022-03-01 15:32:23,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23040 states to 23040 states and 65853 transitions. [2022-03-01 15:32:23,021 INFO L78 Accepts]: Start accepts. Automaton has 23040 states and 65853 transitions. Word has length 263 [2022-03-01 15:32:23,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:23,022 INFO L470 AbstractCegarLoop]: Abstraction has 23040 states and 65853 transitions. [2022-03-01 15:32:23,022 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) [2022-03-01 15:32:23,022 INFO L276 IsEmpty]: Start isEmpty. Operand 23040 states and 65853 transitions. [2022-03-01 15:32:23,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:23,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:23,056 INFO L514 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] [2022-03-01 15:32:23,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-01 15:32:23,057 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:23,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:23,057 INFO L85 PathProgramCache]: Analyzing trace with hash 599109501, now seen corresponding path program 34 times [2022-03-01 15:32:23,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:23,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758407671] [2022-03-01 15:32:23,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:23,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:23,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:23,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:23,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758407671] [2022-03-01 15:32:23,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758407671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:23,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:23,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:32:23,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261518572] [2022-03-01 15:32:23,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:23,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:32:23,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:23,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:32:23,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:32:23,248 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) [2022-03-01 15:32:24,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:24,542 INFO L93 Difference]: Finished difference Result 46534 states and 131301 transitions. [2022-03-01 15:32:24,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:32:24,542 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 [2022-03-01 15:32:24,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:24,645 INFO L225 Difference]: With dead ends: 46534 [2022-03-01 15:32:24,645 INFO L226 Difference]: Without dead ends: 46534 [2022-03-01 15:32:24,645 INFO L932 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 [2022-03-01 15:32:24,645 INFO L933 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 [2022-03-01 15:32:24,646 INFO L934 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] [2022-03-01 15:32:24,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46534 states. [2022-03-01 15:32:25,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46534 to 23008. [2022-03-01 15:32:25,284 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) [2022-03-01 15:32:25,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23008 states to 23008 states and 65753 transitions. [2022-03-01 15:32:25,334 INFO L78 Accepts]: Start accepts. Automaton has 23008 states and 65753 transitions. Word has length 263 [2022-03-01 15:32:25,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:25,335 INFO L470 AbstractCegarLoop]: Abstraction has 23008 states and 65753 transitions. [2022-03-01 15:32:25,335 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) [2022-03-01 15:32:25,335 INFO L276 IsEmpty]: Start isEmpty. Operand 23008 states and 65753 transitions. [2022-03-01 15:32:25,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:25,369 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:25,370 INFO L514 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] [2022-03-01 15:32:25,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-01 15:32:25,370 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:25,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:25,370 INFO L85 PathProgramCache]: Analyzing trace with hash -913752121, now seen corresponding path program 35 times [2022-03-01 15:32:25,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:25,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010529222] [2022-03-01 15:32:25,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:25,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:25,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:25,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010529222] [2022-03-01 15:32:25,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010529222] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:25,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:25,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:25,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161951701] [2022-03-01 15:32:25,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:25,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:25,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:25,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:25,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:25,566 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) [2022-03-01 15:32:26,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:26,993 INFO L93 Difference]: Finished difference Result 62220 states and 175171 transitions. [2022-03-01 15:32:26,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:32:26,993 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 [2022-03-01 15:32:26,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:27,139 INFO L225 Difference]: With dead ends: 62220 [2022-03-01 15:32:27,139 INFO L226 Difference]: Without dead ends: 62220 [2022-03-01 15:32:27,140 INFO L932 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 [2022-03-01 15:32:27,140 INFO L933 BasicCegarLoop]: 923 mSDtfsCounter, 3413 mSDsluCounter, 8043 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-03-01 15:32:27,140 INFO L934 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] [2022-03-01 15:32:27,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62220 states. [2022-03-01 15:32:27,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62220 to 23368. [2022-03-01 15:32:27,896 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) [2022-03-01 15:32:27,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23368 states to 23368 states and 67047 transitions. [2022-03-01 15:32:27,952 INFO L78 Accepts]: Start accepts. Automaton has 23368 states and 67047 transitions. Word has length 263 [2022-03-01 15:32:27,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:27,952 INFO L470 AbstractCegarLoop]: Abstraction has 23368 states and 67047 transitions. [2022-03-01 15:32:27,953 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) [2022-03-01 15:32:27,953 INFO L276 IsEmpty]: Start isEmpty. Operand 23368 states and 67047 transitions. [2022-03-01 15:32:27,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:27,991 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:27,991 INFO L514 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] [2022-03-01 15:32:27,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-01 15:32:27,991 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:27,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:27,991 INFO L85 PathProgramCache]: Analyzing trace with hash 203892719, now seen corresponding path program 36 times [2022-03-01 15:32:27,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:27,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615661641] [2022-03-01 15:32:27,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:27,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:28,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:28,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:28,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615661641] [2022-03-01 15:32:28,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615661641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:28,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:28,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:28,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771300243] [2022-03-01 15:32:28,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:28,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:28,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:28,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:28,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:28,343 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) [2022-03-01 15:32:29,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:29,753 INFO L93 Difference]: Finished difference Result 61888 states and 174531 transitions. [2022-03-01 15:32:29,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:32:29,753 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 [2022-03-01 15:32:29,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:30,029 INFO L225 Difference]: With dead ends: 61888 [2022-03-01 15:32:30,029 INFO L226 Difference]: Without dead ends: 61888 [2022-03-01 15:32:30,030 INFO L932 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 [2022-03-01 15:32:30,030 INFO L933 BasicCegarLoop]: 950 mSDtfsCounter, 3248 mSDsluCounter, 8445 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:30,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3248 Valid, 9316 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:32:30,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61888 states. [2022-03-01 15:32:30,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61888 to 23040. [2022-03-01 15:32:30,715 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) [2022-03-01 15:32:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23040 states to 23040 states and 65853 transitions. [2022-03-01 15:32:30,769 INFO L78 Accepts]: Start accepts. Automaton has 23040 states and 65853 transitions. Word has length 263 [2022-03-01 15:32:30,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:30,770 INFO L470 AbstractCegarLoop]: Abstraction has 23040 states and 65853 transitions. [2022-03-01 15:32:30,770 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) [2022-03-01 15:32:30,770 INFO L276 IsEmpty]: Start isEmpty. Operand 23040 states and 65853 transitions. [2022-03-01 15:32:30,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:30,807 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:30,807 INFO L514 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] [2022-03-01 15:32:30,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-01 15:32:30,808 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:30,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:30,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1660470579, now seen corresponding path program 37 times [2022-03-01 15:32:30,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:30,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348596310] [2022-03-01 15:32:30,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:30,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:31,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:31,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:31,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348596310] [2022-03-01 15:32:31,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348596310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:31,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:31,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:32:31,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937348113] [2022-03-01 15:32:31,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:31,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:32:31,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:31,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:32:31,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:32:31,008 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) [2022-03-01 15:32:32,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:32,133 INFO L93 Difference]: Finished difference Result 47488 states and 133848 transitions. [2022-03-01 15:32:32,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:32:32,134 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 [2022-03-01 15:32:32,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:32,371 INFO L225 Difference]: With dead ends: 47488 [2022-03-01 15:32:32,372 INFO L226 Difference]: Without dead ends: 47488 [2022-03-01 15:32:32,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=539, Invalid=1911, Unknown=0, NotChecked=0, Total=2450 [2022-03-01 15:32:32,372 INFO L933 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 [2022-03-01 15:32:32,372 INFO L934 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] [2022-03-01 15:32:32,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47488 states. [2022-03-01 15:32:32,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47488 to 23004. [2022-03-01 15:32:32,942 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) [2022-03-01 15:32:32,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23004 states to 23004 states and 65742 transitions. [2022-03-01 15:32:32,994 INFO L78 Accepts]: Start accepts. Automaton has 23004 states and 65742 transitions. Word has length 263 [2022-03-01 15:32:32,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:32,994 INFO L470 AbstractCegarLoop]: Abstraction has 23004 states and 65742 transitions. [2022-03-01 15:32:32,994 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) [2022-03-01 15:32:32,994 INFO L276 IsEmpty]: Start isEmpty. Operand 23004 states and 65742 transitions. [2022-03-01 15:32:33,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:33,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:33,030 INFO L514 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] [2022-03-01 15:32:33,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-01 15:32:33,030 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:33,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:33,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1167596823, now seen corresponding path program 38 times [2022-03-01 15:32:33,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:33,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472058939] [2022-03-01 15:32:33,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:33,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:33,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:33,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:33,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472058939] [2022-03-01 15:32:33,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472058939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:33,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:33,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:32:33,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856912233] [2022-03-01 15:32:33,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:33,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:32:33,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:33,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:32:33,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:32:33,219 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) [2022-03-01 15:32:34,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:34,967 INFO L93 Difference]: Finished difference Result 78504 states and 220912 transitions. [2022-03-01 15:32:34,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-01 15:32:34,968 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 [2022-03-01 15:32:34,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:35,139 INFO L225 Difference]: With dead ends: 78504 [2022-03-01 15:32:35,139 INFO L226 Difference]: Without dead ends: 78504 [2022-03-01 15:32:35,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=821, Invalid=2839, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:32:35,140 INFO L933 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 [2022-03-01 15:32:35,140 INFO L934 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] [2022-03-01 15:32:35,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78504 states. [2022-03-01 15:32:35,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78504 to 23436. [2022-03-01 15:32:36,013 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) [2022-03-01 15:32:36,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23436 states to 23436 states and 67266 transitions. [2022-03-01 15:32:36,067 INFO L78 Accepts]: Start accepts. Automaton has 23436 states and 67266 transitions. Word has length 263 [2022-03-01 15:32:36,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:36,067 INFO L470 AbstractCegarLoop]: Abstraction has 23436 states and 67266 transitions. [2022-03-01 15:32:36,068 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) [2022-03-01 15:32:36,068 INFO L276 IsEmpty]: Start isEmpty. Operand 23436 states and 67266 transitions. [2022-03-01 15:32:36,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:36,104 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:36,104 INFO L514 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] [2022-03-01 15:32:36,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-01 15:32:36,104 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:36,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:36,104 INFO L85 PathProgramCache]: Analyzing trace with hash -49951983, now seen corresponding path program 39 times [2022-03-01 15:32:36,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:36,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591822506] [2022-03-01 15:32:36,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:36,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:36,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:36,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:36,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591822506] [2022-03-01 15:32:36,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591822506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:36,300 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:36,300 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:36,300 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982932690] [2022-03-01 15:32:36,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:36,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:36,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:36,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:36,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:36,301 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) [2022-03-01 15:32:38,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:38,284 INFO L93 Difference]: Finished difference Result 78288 states and 220674 transitions. [2022-03-01 15:32:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-01 15:32:38,284 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 [2022-03-01 15:32:38,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:38,482 INFO L225 Difference]: With dead ends: 78288 [2022-03-01 15:32:38,483 INFO L226 Difference]: Without dead ends: 78288 [2022-03-01 15:32:38,483 INFO L932 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 [2022-03-01 15:32:38,483 INFO L933 BasicCegarLoop]: 1158 mSDtfsCounter, 3185 mSDsluCounter, 10749 mSDsCounter, 0 mSdLazyCounter, 2078 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:38,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3185 Valid, 11783 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2078 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:32:38,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78288 states. [2022-03-01 15:32:39,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78288 to 23100. [2022-03-01 15:32:39,409 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) [2022-03-01 15:32:39,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23100 states to 23100 states and 66042 transitions. [2022-03-01 15:32:39,466 INFO L78 Accepts]: Start accepts. Automaton has 23100 states and 66042 transitions. Word has length 263 [2022-03-01 15:32:39,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:39,466 INFO L470 AbstractCegarLoop]: Abstraction has 23100 states and 66042 transitions. [2022-03-01 15:32:39,466 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) [2022-03-01 15:32:39,466 INFO L276 IsEmpty]: Start isEmpty. Operand 23100 states and 66042 transitions. [2022-03-01 15:32:39,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:39,505 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:39,505 INFO L514 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] [2022-03-01 15:32:39,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-01 15:32:39,505 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:39,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:39,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1068792351, now seen corresponding path program 40 times [2022-03-01 15:32:39,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:39,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106059031] [2022-03-01 15:32:39,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:39,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:39,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:39,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:39,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106059031] [2022-03-01 15:32:39,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106059031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:39,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:39,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:32:39,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773919363] [2022-03-01 15:32:39,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:39,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:32:39,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:39,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:32:39,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:32:39,692 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) [2022-03-01 15:32:41,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:41,152 INFO L93 Difference]: Finished difference Result 62988 states and 177593 transitions. [2022-03-01 15:32:41,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:32:41,153 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 [2022-03-01 15:32:41,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:41,299 INFO L225 Difference]: With dead ends: 62988 [2022-03-01 15:32:41,299 INFO L226 Difference]: Without dead ends: 62988 [2022-03-01 15:32:41,300 INFO L932 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 [2022-03-01 15:32:41,300 INFO L933 BasicCegarLoop]: 1004 mSDtfsCounter, 2683 mSDsluCounter, 8198 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:41,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2683 Valid, 9102 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1610 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:32:41,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62988 states. [2022-03-01 15:32:42,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62988 to 23068. [2022-03-01 15:32:42,157 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) [2022-03-01 15:32:42,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23068 states to 23068 states and 65942 transitions. [2022-03-01 15:32:42,213 INFO L78 Accepts]: Start accepts. Automaton has 23068 states and 65942 transitions. Word has length 263 [2022-03-01 15:32:42,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:42,213 INFO L470 AbstractCegarLoop]: Abstraction has 23068 states and 65942 transitions. [2022-03-01 15:32:42,213 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) [2022-03-01 15:32:42,213 INFO L276 IsEmpty]: Start isEmpty. Operand 23068 states and 65942 transitions. [2022-03-01 15:32:42,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:42,257 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:42,258 INFO L514 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] [2022-03-01 15:32:42,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-01 15:32:42,258 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:42,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:42,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1028540475, now seen corresponding path program 41 times [2022-03-01 15:32:42,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:42,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070026896] [2022-03-01 15:32:42,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:42,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:42,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:42,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:42,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070026896] [2022-03-01 15:32:42,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070026896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:42,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:42,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:42,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606272782] [2022-03-01 15:32:42,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:42,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:42,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:42,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:42,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:42,474 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) [2022-03-01 15:32:44,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:44,006 INFO L93 Difference]: Finished difference Result 65923 states and 185075 transitions. [2022-03-01 15:32:44,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:32:44,006 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 [2022-03-01 15:32:44,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:44,153 INFO L225 Difference]: With dead ends: 65923 [2022-03-01 15:32:44,154 INFO L226 Difference]: Without dead ends: 65923 [2022-03-01 15:32:44,154 INFO L932 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 [2022-03-01 15:32:44,154 INFO L933 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 [2022-03-01 15:32:44,154 INFO L934 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] [2022-03-01 15:32:44,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65923 states. [2022-03-01 15:32:44,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65923 to 23068. [2022-03-01 15:32:44,992 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) [2022-03-01 15:32:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23068 states to 23068 states and 65942 transitions. [2022-03-01 15:32:45,042 INFO L78 Accepts]: Start accepts. Automaton has 23068 states and 65942 transitions. Word has length 263 [2022-03-01 15:32:45,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:45,042 INFO L470 AbstractCegarLoop]: Abstraction has 23068 states and 65942 transitions. [2022-03-01 15:32:45,042 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) [2022-03-01 15:32:45,042 INFO L276 IsEmpty]: Start isEmpty. Operand 23068 states and 65942 transitions. [2022-03-01 15:32:45,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:45,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:45,088 INFO L514 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] [2022-03-01 15:32:45,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-01 15:32:45,089 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:45,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:45,090 INFO L85 PathProgramCache]: Analyzing trace with hash 744316453, now seen corresponding path program 42 times [2022-03-01 15:32:45,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:45,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852500100] [2022-03-01 15:32:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:45,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:45,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:45,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852500100] [2022-03-01 15:32:45,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852500100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:45,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:45,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:45,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427922339] [2022-03-01 15:32:45,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:45,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:45,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:45,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:45,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:45,273 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) [2022-03-01 15:32:46,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:46,559 INFO L93 Difference]: Finished difference Result 46009 states and 129657 transitions. [2022-03-01 15:32:46,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:32:46,559 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 [2022-03-01 15:32:46,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:46,657 INFO L225 Difference]: With dead ends: 46009 [2022-03-01 15:32:46,657 INFO L226 Difference]: Without dead ends: 46009 [2022-03-01 15:32:46,657 INFO L932 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 [2022-03-01 15:32:46,657 INFO L933 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 [2022-03-01 15:32:46,658 INFO L934 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] [2022-03-01 15:32:46,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46009 states. [2022-03-01 15:32:47,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46009 to 23444. [2022-03-01 15:32:47,227 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) [2022-03-01 15:32:47,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23444 states to 23444 states and 67280 transitions. [2022-03-01 15:32:47,280 INFO L78 Accepts]: Start accepts. Automaton has 23444 states and 67280 transitions. Word has length 263 [2022-03-01 15:32:47,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:47,280 INFO L470 AbstractCegarLoop]: Abstraction has 23444 states and 67280 transitions. [2022-03-01 15:32:47,281 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) [2022-03-01 15:32:47,281 INFO L276 IsEmpty]: Start isEmpty. Operand 23444 states and 67280 transitions. [2022-03-01 15:32:47,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:47,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:47,316 INFO L514 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] [2022-03-01 15:32:47,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-01 15:32:47,316 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:47,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:47,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1861961293, now seen corresponding path program 43 times [2022-03-01 15:32:47,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:47,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390282296] [2022-03-01 15:32:47,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:47,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:47,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:47,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390282296] [2022-03-01 15:32:47,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390282296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:47,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:47,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:47,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896962495] [2022-03-01 15:32:47,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:47,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:47,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:47,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:47,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:47,505 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) [2022-03-01 15:32:48,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:48,804 INFO L93 Difference]: Finished difference Result 46114 states and 130155 transitions. [2022-03-01 15:32:48,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:32:48,804 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 [2022-03-01 15:32:48,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:48,898 INFO L225 Difference]: With dead ends: 46114 [2022-03-01 15:32:48,898 INFO L226 Difference]: Without dead ends: 46114 [2022-03-01 15:32:48,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=593, Invalid=2269, Unknown=0, NotChecked=0, Total=2862 [2022-03-01 15:32:48,899 INFO L933 BasicCegarLoop]: 942 mSDtfsCounter, 2478 mSDsluCounter, 8737 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:48,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2478 Valid, 9591 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:32:48,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46114 states. [2022-03-01 15:32:49,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46114 to 23116. [2022-03-01 15:32:49,494 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) [2022-03-01 15:32:49,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23116 states to 23116 states and 66086 transitions. [2022-03-01 15:32:49,544 INFO L78 Accepts]: Start accepts. Automaton has 23116 states and 66086 transitions. Word has length 263 [2022-03-01 15:32:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:49,544 INFO L470 AbstractCegarLoop]: Abstraction has 23116 states and 66086 transitions. [2022-03-01 15:32:49,544 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) [2022-03-01 15:32:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand 23116 states and 66086 transitions. [2022-03-01 15:32:49,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:49,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:49,581 INFO L514 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] [2022-03-01 15:32:49,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-01 15:32:49,581 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:49,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:49,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1314261669, now seen corresponding path program 44 times [2022-03-01 15:32:49,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:49,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6665862] [2022-03-01 15:32:49,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:49,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:49,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:49,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:49,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6665862] [2022-03-01 15:32:49,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6665862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:49,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:49,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:49,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507867541] [2022-03-01 15:32:49,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:49,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:49,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:49,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:49,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:49,767 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) [2022-03-01 15:32:50,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:50,837 INFO L93 Difference]: Finished difference Result 30814 states and 87066 transitions. [2022-03-01 15:32:50,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 15:32:50,838 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 [2022-03-01 15:32:50,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:50,901 INFO L225 Difference]: With dead ends: 30814 [2022-03-01 15:32:50,901 INFO L226 Difference]: Without dead ends: 30814 [2022-03-01 15:32:50,901 INFO L932 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 [2022-03-01 15:32:50,901 INFO L933 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 [2022-03-01 15:32:50,902 INFO L934 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] [2022-03-01 15:32:50,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30814 states. [2022-03-01 15:32:51,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30814 to 23084. [2022-03-01 15:32:51,281 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) [2022-03-01 15:32:51,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23084 states to 23084 states and 65986 transitions. [2022-03-01 15:32:51,332 INFO L78 Accepts]: Start accepts. Automaton has 23084 states and 65986 transitions. Word has length 263 [2022-03-01 15:32:51,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:51,332 INFO L470 AbstractCegarLoop]: Abstraction has 23084 states and 65986 transitions. [2022-03-01 15:32:51,332 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) [2022-03-01 15:32:51,332 INFO L276 IsEmpty]: Start isEmpty. Operand 23084 states and 65986 transitions. [2022-03-01 15:32:51,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:51,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:51,367 INFO L514 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] [2022-03-01 15:32:51,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-01 15:32:51,367 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:51,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:51,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1467844005, now seen corresponding path program 45 times [2022-03-01 15:32:51,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:51,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073208717] [2022-03-01 15:32:51,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:51,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:51,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:51,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:51,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073208717] [2022-03-01 15:32:51,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073208717] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:51,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:51,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:51,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412448076] [2022-03-01 15:32:51,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:51,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:51,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:51,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:51,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:51,546 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) [2022-03-01 15:32:52,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:52,737 INFO L93 Difference]: Finished difference Result 45828 states and 129170 transitions. [2022-03-01 15:32:52,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 15:32:52,737 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 [2022-03-01 15:32:52,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:52,832 INFO L225 Difference]: With dead ends: 45828 [2022-03-01 15:32:52,832 INFO L226 Difference]: Without dead ends: 45828 [2022-03-01 15:32:52,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=494, Invalid=1858, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 15:32:52,832 INFO L933 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 [2022-03-01 15:32:52,833 INFO L934 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] [2022-03-01 15:32:52,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45828 states. [2022-03-01 15:32:53,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45828 to 23444. [2022-03-01 15:32:53,433 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) [2022-03-01 15:32:53,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23444 states to 23444 states and 67280 transitions. [2022-03-01 15:32:53,493 INFO L78 Accepts]: Start accepts. Automaton has 23444 states and 67280 transitions. Word has length 263 [2022-03-01 15:32:53,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:53,494 INFO L470 AbstractCegarLoop]: Abstraction has 23444 states and 67280 transitions. [2022-03-01 15:32:53,494 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) [2022-03-01 15:32:53,494 INFO L276 IsEmpty]: Start isEmpty. Operand 23444 states and 67280 transitions. [2022-03-01 15:32:53,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:53,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:53,531 INFO L514 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] [2022-03-01 15:32:53,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-01 15:32:53,531 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:53,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:53,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1709478451, now seen corresponding path program 46 times [2022-03-01 15:32:53,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:53,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971377260] [2022-03-01 15:32:53,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:53,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:53,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:53,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:53,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971377260] [2022-03-01 15:32:53,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971377260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:53,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:53,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:53,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846034607] [2022-03-01 15:32:53,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:53,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:53,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:53,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:53,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:53,723 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) [2022-03-01 15:32:55,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:55,022 INFO L93 Difference]: Finished difference Result 45676 states and 128943 transitions. [2022-03-01 15:32:55,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:32:55,023 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 [2022-03-01 15:32:55,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:55,116 INFO L225 Difference]: With dead ends: 45676 [2022-03-01 15:32:55,116 INFO L226 Difference]: Without dead ends: 45676 [2022-03-01 15:32:55,117 INFO L932 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 [2022-03-01 15:32:55,118 INFO L933 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 [2022-03-01 15:32:55,118 INFO L934 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] [2022-03-01 15:32:55,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45676 states. [2022-03-01 15:32:55,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45676 to 23116. [2022-03-01 15:32:55,622 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) [2022-03-01 15:32:55,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23116 states to 23116 states and 66086 transitions. [2022-03-01 15:32:55,671 INFO L78 Accepts]: Start accepts. Automaton has 23116 states and 66086 transitions. Word has length 263 [2022-03-01 15:32:55,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:55,672 INFO L470 AbstractCegarLoop]: Abstraction has 23116 states and 66086 transitions. [2022-03-01 15:32:55,672 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) [2022-03-01 15:32:55,672 INFO L276 IsEmpty]: Start isEmpty. Operand 23116 states and 66086 transitions. [2022-03-01 15:32:55,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:55,788 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:55,788 INFO L514 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] [2022-03-01 15:32:55,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-01 15:32:55,788 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:55,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:55,789 INFO L85 PathProgramCache]: Analyzing trace with hash 721125547, now seen corresponding path program 47 times [2022-03-01 15:32:55,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:55,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217322261] [2022-03-01 15:32:55,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:55,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:55,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:55,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:55,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217322261] [2022-03-01 15:32:55,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217322261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:55,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:55,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:32:55,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670139050] [2022-03-01 15:32:55,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:55,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:32:55,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:55,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:32:55,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:55,972 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) [2022-03-01 15:32:56,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:56,812 INFO L93 Difference]: Finished difference Result 31096 states and 87847 transitions. [2022-03-01 15:32:56,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 15:32:56,812 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 [2022-03-01 15:32:56,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:56,874 INFO L225 Difference]: With dead ends: 31096 [2022-03-01 15:32:56,874 INFO L226 Difference]: Without dead ends: 31096 [2022-03-01 15:32:56,874 INFO L932 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 [2022-03-01 15:32:56,874 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 2109 mSDsluCounter, 6653 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-03-01 15:32:56,875 INFO L934 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] [2022-03-01 15:32:56,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31096 states. [2022-03-01 15:32:57,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31096 to 23080. [2022-03-01 15:32:57,379 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) [2022-03-01 15:32:57,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23080 states to 23080 states and 65975 transitions. [2022-03-01 15:32:57,429 INFO L78 Accepts]: Start accepts. Automaton has 23080 states and 65975 transitions. Word has length 263 [2022-03-01 15:32:57,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:57,430 INFO L470 AbstractCegarLoop]: Abstraction has 23080 states and 65975 transitions. [2022-03-01 15:32:57,430 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) [2022-03-01 15:32:57,430 INFO L276 IsEmpty]: Start isEmpty. Operand 23080 states and 65975 transitions. [2022-03-01 15:32:57,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:32:57,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:57,464 INFO L514 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] [2022-03-01 15:32:57,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-01 15:32:57,464 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:57,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:57,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1213999303, now seen corresponding path program 48 times [2022-03-01 15:32:57,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:57,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827745071] [2022-03-01 15:32:57,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:57,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:57,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:57,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:57,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827745071] [2022-03-01 15:32:57,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827745071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:57,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:57,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:32:57,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510535520] [2022-03-01 15:32:57,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:57,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:32:57,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:57,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:32:57,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:32:57,652 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) [2022-03-01 15:32:59,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:59,090 INFO L93 Difference]: Finished difference Result 63028 states and 177462 transitions. [2022-03-01 15:32:59,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:32:59,095 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 [2022-03-01 15:32:59,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:59,372 INFO L225 Difference]: With dead ends: 63028 [2022-03-01 15:32:59,373 INFO L226 Difference]: Without dead ends: 63028 [2022-03-01 15:32:59,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=673, Invalid=2407, Unknown=0, NotChecked=0, Total=3080 [2022-03-01 15:32:59,373 INFO L933 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 [2022-03-01 15:32:59,373 INFO L934 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] [2022-03-01 15:32:59,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63028 states. [2022-03-01 15:32:59,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63028 to 23512. [2022-03-01 15:32:59,960 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) [2022-03-01 15:33:00,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23512 states to 23512 states and 67499 transitions. [2022-03-01 15:33:00,011 INFO L78 Accepts]: Start accepts. Automaton has 23512 states and 67499 transitions. Word has length 263 [2022-03-01 15:33:00,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:00,011 INFO L470 AbstractCegarLoop]: Abstraction has 23512 states and 67499 transitions. [2022-03-01 15:33:00,011 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) [2022-03-01 15:33:00,012 INFO L276 IsEmpty]: Start isEmpty. Operand 23512 states and 67499 transitions. [2022-03-01 15:33:00,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:00,046 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:00,046 INFO L514 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] [2022-03-01 15:33:00,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-01 15:33:00,047 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:00,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:00,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1963323153, now seen corresponding path program 49 times [2022-03-01 15:33:00,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:00,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961966040] [2022-03-01 15:33:00,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:00,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:00,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:00,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:00,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961966040] [2022-03-01 15:33:00,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961966040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:00,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:00,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:33:00,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532516880] [2022-03-01 15:33:00,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:00,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:33:00,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:00,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:33:00,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:33:00,412 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) [2022-03-01 15:33:01,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:01,856 INFO L93 Difference]: Finished difference Result 63052 states and 177798 transitions. [2022-03-01 15:33:01,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:33:01,856 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 [2022-03-01 15:33:01,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:01,998 INFO L225 Difference]: With dead ends: 63052 [2022-03-01 15:33:01,998 INFO L226 Difference]: Without dead ends: 63052 [2022-03-01 15:33:01,999 INFO L932 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 [2022-03-01 15:33:02,000 INFO L933 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 [2022-03-01 15:33:02,000 INFO L934 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] [2022-03-01 15:33:02,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63052 states. [2022-03-01 15:33:02,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63052 to 23176. [2022-03-01 15:33:02,822 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) [2022-03-01 15:33:02,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23176 states to 23176 states and 66275 transitions. [2022-03-01 15:33:02,874 INFO L78 Accepts]: Start accepts. Automaton has 23176 states and 66275 transitions. Word has length 263 [2022-03-01 15:33:02,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:02,875 INFO L470 AbstractCegarLoop]: Abstraction has 23176 states and 66275 transitions. [2022-03-01 15:33:02,875 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) [2022-03-01 15:33:02,875 INFO L276 IsEmpty]: Start isEmpty. Operand 23176 states and 66275 transitions. [2022-03-01 15:33:02,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:02,909 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:02,910 INFO L514 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] [2022-03-01 15:33:02,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-01 15:33:02,910 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:02,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:02,910 INFO L85 PathProgramCache]: Analyzing trace with hash -844578819, now seen corresponding path program 50 times [2022-03-01 15:33:02,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:02,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914994576] [2022-03-01 15:33:02,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:02,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:03,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:03,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914994576] [2022-03-01 15:33:03,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914994576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:03,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:03,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:33:03,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381124550] [2022-03-01 15:33:03,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:03,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:33:03,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:03,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:33:03,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:33:03,120 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) [2022-03-01 15:33:04,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:04,454 INFO L93 Difference]: Finished difference Result 47752 states and 134717 transitions. [2022-03-01 15:33:04,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:33:04,455 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 [2022-03-01 15:33:04,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:04,554 INFO L225 Difference]: With dead ends: 47752 [2022-03-01 15:33:04,554 INFO L226 Difference]: Without dead ends: 47752 [2022-03-01 15:33:04,555 INFO L932 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 [2022-03-01 15:33:04,555 INFO L933 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 [2022-03-01 15:33:04,556 INFO L934 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] [2022-03-01 15:33:04,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47752 states. [2022-03-01 15:33:05,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47752 to 23144. [2022-03-01 15:33:05,209 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) [2022-03-01 15:33:05,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23144 states to 23144 states and 66175 transitions. [2022-03-01 15:33:05,263 INFO L78 Accepts]: Start accepts. Automaton has 23144 states and 66175 transitions. Word has length 263 [2022-03-01 15:33:05,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:05,264 INFO L470 AbstractCegarLoop]: Abstraction has 23144 states and 66175 transitions. [2022-03-01 15:33:05,264 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) [2022-03-01 15:33:05,264 INFO L276 IsEmpty]: Start isEmpty. Operand 23144 states and 66175 transitions. [2022-03-01 15:33:05,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:05,298 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:05,299 INFO L514 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] [2022-03-01 15:33:05,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-01 15:33:05,299 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:05,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:05,299 INFO L85 PathProgramCache]: Analyzing trace with hash -884830695, now seen corresponding path program 51 times [2022-03-01 15:33:05,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:05,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083926874] [2022-03-01 15:33:05,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:05,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:05,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:05,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:05,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083926874] [2022-03-01 15:33:05,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083926874] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:05,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:05,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:05,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363634984] [2022-03-01 15:33:05,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:05,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:05,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:05,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:05,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:05,482 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) [2022-03-01 15:33:06,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:06,837 INFO L93 Difference]: Finished difference Result 50687 states and 142199 transitions. [2022-03-01 15:33:06,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:33:06,838 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 [2022-03-01 15:33:06,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:06,947 INFO L225 Difference]: With dead ends: 50687 [2022-03-01 15:33:06,947 INFO L226 Difference]: Without dead ends: 50687 [2022-03-01 15:33:06,948 INFO L932 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 [2022-03-01 15:33:06,948 INFO L933 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 [2022-03-01 15:33:06,948 INFO L934 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] [2022-03-01 15:33:07,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50687 states. [2022-03-01 15:33:07,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50687 to 23072. [2022-03-01 15:33:07,460 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) [2022-03-01 15:33:07,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23072 states to 23072 states and 65953 transitions. [2022-03-01 15:33:07,676 INFO L78 Accepts]: Start accepts. Automaton has 23072 states and 65953 transitions. Word has length 263 [2022-03-01 15:33:07,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:07,676 INFO L470 AbstractCegarLoop]: Abstraction has 23072 states and 65953 transitions. [2022-03-01 15:33:07,676 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) [2022-03-01 15:33:07,676 INFO L276 IsEmpty]: Start isEmpty. Operand 23072 states and 65953 transitions. [2022-03-01 15:33:07,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:07,711 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:07,711 INFO L514 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] [2022-03-01 15:33:07,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-01 15:33:07,711 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:07,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:07,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1607652073, now seen corresponding path program 52 times [2022-03-01 15:33:07,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:07,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491313887] [2022-03-01 15:33:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:07,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:07,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:07,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:07,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491313887] [2022-03-01 15:33:07,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491313887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:07,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:07,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:07,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016455420] [2022-03-01 15:33:07,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:07,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:07,913 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:07,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:07,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:07,914 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) [2022-03-01 15:33:09,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:09,212 INFO L93 Difference]: Finished difference Result 46200 states and 130131 transitions. [2022-03-01 15:33:09,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:33:09,212 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 [2022-03-01 15:33:09,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:09,305 INFO L225 Difference]: With dead ends: 46200 [2022-03-01 15:33:09,305 INFO L226 Difference]: Without dead ends: 46200 [2022-03-01 15:33:09,306 INFO L932 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 [2022-03-01 15:33:09,306 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 2424 mSDsluCounter, 9227 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:09,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2424 Valid, 10045 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1899 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:33:09,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46200 states. [2022-03-01 15:33:09,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46200 to 23607. [2022-03-01 15:33:09,933 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) [2022-03-01 15:33:09,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23607 states to 23607 states and 67770 transitions. [2022-03-01 15:33:09,987 INFO L78 Accepts]: Start accepts. Automaton has 23607 states and 67770 transitions. Word has length 263 [2022-03-01 15:33:09,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:09,987 INFO L470 AbstractCegarLoop]: Abstraction has 23607 states and 67770 transitions. [2022-03-01 15:33:09,987 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) [2022-03-01 15:33:09,987 INFO L276 IsEmpty]: Start isEmpty. Operand 23607 states and 67770 transitions. [2022-03-01 15:33:10,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:10,023 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:10,024 INFO L514 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] [2022-03-01 15:33:10,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-01 15:33:10,024 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:10,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:10,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1569670383, now seen corresponding path program 53 times [2022-03-01 15:33:10,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:10,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491571428] [2022-03-01 15:33:10,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:10,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:10,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491571428] [2022-03-01 15:33:10,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491571428] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:10,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:10,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:33:10,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895169322] [2022-03-01 15:33:10,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:10,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:33:10,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:10,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:33:10,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:33:10,206 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) [2022-03-01 15:33:11,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:11,464 INFO L93 Difference]: Finished difference Result 46374 states and 130808 transitions. [2022-03-01 15:33:11,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:33:11,465 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 [2022-03-01 15:33:11,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:11,567 INFO L225 Difference]: With dead ends: 46374 [2022-03-01 15:33:11,567 INFO L226 Difference]: Without dead ends: 46374 [2022-03-01 15:33:11,568 INFO L932 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 [2022-03-01 15:33:11,568 INFO L933 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 [2022-03-01 15:33:11,568 INFO L934 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] [2022-03-01 15:33:11,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46374 states. [2022-03-01 15:33:12,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46374 to 23271. [2022-03-01 15:33:12,152 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) [2022-03-01 15:33:12,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23271 states to 23271 states and 66546 transitions. [2022-03-01 15:33:12,202 INFO L78 Accepts]: Start accepts. Automaton has 23271 states and 66546 transitions. Word has length 263 [2022-03-01 15:33:12,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:12,202 INFO L470 AbstractCegarLoop]: Abstraction has 23271 states and 66546 transitions. [2022-03-01 15:33:12,202 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) [2022-03-01 15:33:12,202 INFO L276 IsEmpty]: Start isEmpty. Operand 23271 states and 66546 transitions. [2022-03-01 15:33:12,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:12,236 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:12,236 INFO L514 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] [2022-03-01 15:33:12,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-01 15:33:12,236 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:12,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:12,237 INFO L85 PathProgramCache]: Analyzing trace with hash -450926049, now seen corresponding path program 54 times [2022-03-01 15:33:12,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:12,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97987306] [2022-03-01 15:33:12,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:12,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:12,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:12,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97987306] [2022-03-01 15:33:12,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97987306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:12,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:12,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:12,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896693812] [2022-03-01 15:33:12,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:12,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:12,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:12,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:12,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:12,422 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) [2022-03-01 15:33:13,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:13,555 INFO L93 Difference]: Finished difference Result 46941 states and 132437 transitions. [2022-03-01 15:33:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:33:13,555 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 [2022-03-01 15:33:13,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:13,802 INFO L225 Difference]: With dead ends: 46941 [2022-03-01 15:33:13,802 INFO L226 Difference]: Without dead ends: 46941 [2022-03-01 15:33:13,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=513, Invalid=1937, Unknown=0, NotChecked=0, Total=2450 [2022-03-01 15:33:13,803 INFO L933 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 [2022-03-01 15:33:13,803 INFO L934 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] [2022-03-01 15:33:13,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46941 states. [2022-03-01 15:33:14,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46941 to 23239. [2022-03-01 15:33:14,268 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) [2022-03-01 15:33:14,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23239 states to 23239 states and 66446 transitions. [2022-03-01 15:33:14,320 INFO L78 Accepts]: Start accepts. Automaton has 23239 states and 66446 transitions. Word has length 263 [2022-03-01 15:33:14,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:14,320 INFO L470 AbstractCegarLoop]: Abstraction has 23239 states and 66446 transitions. [2022-03-01 15:33:14,320 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) [2022-03-01 15:33:14,320 INFO L276 IsEmpty]: Start isEmpty. Operand 23239 states and 66446 transitions. [2022-03-01 15:33:14,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:14,354 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:14,355 INFO L514 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] [2022-03-01 15:33:14,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-01 15:33:14,355 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:14,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:14,355 INFO L85 PathProgramCache]: Analyzing trace with hash -491177925, now seen corresponding path program 55 times [2022-03-01 15:33:14,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:14,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656200071] [2022-03-01 15:33:14,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:14,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:14,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:14,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:14,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656200071] [2022-03-01 15:33:14,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656200071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:14,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:14,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:33:14,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40548107] [2022-03-01 15:33:14,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:14,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:33:14,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:14,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:33:14,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:33:14,531 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) [2022-03-01 15:33:15,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:15,929 INFO L93 Difference]: Finished difference Result 50834 states and 142556 transitions. [2022-03-01 15:33:15,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:33:15,930 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 [2022-03-01 15:33:15,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:16,051 INFO L225 Difference]: With dead ends: 50834 [2022-03-01 15:33:16,051 INFO L226 Difference]: Without dead ends: 50834 [2022-03-01 15:33:16,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=557, Invalid=1993, Unknown=0, NotChecked=0, Total=2550 [2022-03-01 15:33:16,052 INFO L933 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 [2022-03-01 15:33:16,052 INFO L934 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] [2022-03-01 15:33:16,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50834 states. [2022-03-01 15:33:16,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50834 to 23175. [2022-03-01 15:33:16,690 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) [2022-03-01 15:33:16,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23175 states to 23175 states and 66246 transitions. [2022-03-01 15:33:16,741 INFO L78 Accepts]: Start accepts. Automaton has 23175 states and 66246 transitions. Word has length 263 [2022-03-01 15:33:16,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:16,741 INFO L470 AbstractCegarLoop]: Abstraction has 23175 states and 66246 transitions. [2022-03-01 15:33:16,741 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) [2022-03-01 15:33:16,741 INFO L276 IsEmpty]: Start isEmpty. Operand 23175 states and 66246 transitions. [2022-03-01 15:33:16,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:16,777 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:16,777 INFO L514 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] [2022-03-01 15:33:16,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-01 15:33:16,777 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:16,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:16,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1265730777, now seen corresponding path program 56 times [2022-03-01 15:33:16,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:16,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606416171] [2022-03-01 15:33:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:16,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:16,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:16,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:16,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606416171] [2022-03-01 15:33:16,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606416171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:16,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:16,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:33:16,962 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388097973] [2022-03-01 15:33:16,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:16,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:33:16,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:16,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:33:16,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:33:16,963 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) [2022-03-01 15:33:18,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:18,035 INFO L93 Difference]: Finished difference Result 31081 states and 87501 transitions. [2022-03-01 15:33:18,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 15:33:18,036 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 [2022-03-01 15:33:18,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:18,101 INFO L225 Difference]: With dead ends: 31081 [2022-03-01 15:33:18,102 INFO L226 Difference]: Without dead ends: 31081 [2022-03-01 15:33:18,102 INFO L932 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 [2022-03-01 15:33:18,102 INFO L933 BasicCegarLoop]: 797 mSDtfsCounter, 1845 mSDsluCounter, 7081 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:18,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1845 Valid, 7774 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:33:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31081 states. [2022-03-01 15:33:18,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31081 to 23175. [2022-03-01 15:33:18,648 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) [2022-03-01 15:33:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23175 states to 23175 states and 66246 transitions. [2022-03-01 15:33:18,697 INFO L78 Accepts]: Start accepts. Automaton has 23175 states and 66246 transitions. Word has length 263 [2022-03-01 15:33:18,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:18,697 INFO L470 AbstractCegarLoop]: Abstraction has 23175 states and 66246 transitions. [2022-03-01 15:33:18,697 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) [2022-03-01 15:33:18,698 INFO L276 IsEmpty]: Start isEmpty. Operand 23175 states and 66246 transitions. [2022-03-01 15:33:18,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:18,731 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:18,731 INFO L514 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] [2022-03-01 15:33:18,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-01 15:33:18,731 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:18,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:18,732 INFO L85 PathProgramCache]: Analyzing trace with hash -855675867, now seen corresponding path program 57 times [2022-03-01 15:33:18,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:18,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085561021] [2022-03-01 15:33:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:18,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:18,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:18,935 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:18,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085561021] [2022-03-01 15:33:18,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085561021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:18,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:18,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:18,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016533118] [2022-03-01 15:33:18,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:18,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:18,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:18,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:18,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:18,937 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) [2022-03-01 15:33:20,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:20,459 INFO L93 Difference]: Finished difference Result 61998 states and 174599 transitions. [2022-03-01 15:33:20,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:33:20,460 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 [2022-03-01 15:33:20,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:20,608 INFO L225 Difference]: With dead ends: 61998 [2022-03-01 15:33:20,608 INFO L226 Difference]: Without dead ends: 61998 [2022-03-01 15:33:20,608 INFO L932 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 [2022-03-01 15:33:20,609 INFO L933 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, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:20,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 10270 Invalid, 1950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:33:20,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61998 states. [2022-03-01 15:33:21,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61998 to 23575. [2022-03-01 15:33:21,350 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) [2022-03-01 15:33:21,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23575 states to 23575 states and 67650 transitions. [2022-03-01 15:33:21,401 INFO L78 Accepts]: Start accepts. Automaton has 23575 states and 67650 transitions. Word has length 263 [2022-03-01 15:33:21,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:21,403 INFO L470 AbstractCegarLoop]: Abstraction has 23575 states and 67650 transitions. [2022-03-01 15:33:21,403 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) [2022-03-01 15:33:21,403 INFO L276 IsEmpty]: Start isEmpty. Operand 23575 states and 67650 transitions. [2022-03-01 15:33:21,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:21,561 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:21,561 INFO L514 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] [2022-03-01 15:33:21,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-01 15:33:21,561 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:21,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:21,562 INFO L85 PathProgramCache]: Analyzing trace with hash 261968973, now seen corresponding path program 58 times [2022-03-01 15:33:21,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:21,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864533287] [2022-03-01 15:33:21,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:21,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:21,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:21,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:21,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864533287] [2022-03-01 15:33:21,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864533287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:21,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:21,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:21,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618736869] [2022-03-01 15:33:21,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:21,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:21,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:21,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:21,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:21,751 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) [2022-03-01 15:33:23,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:23,183 INFO L93 Difference]: Finished difference Result 61860 states and 174517 transitions. [2022-03-01 15:33:23,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:33:23,184 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 [2022-03-01 15:33:23,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:23,313 INFO L225 Difference]: With dead ends: 61860 [2022-03-01 15:33:23,313 INFO L226 Difference]: Without dead ends: 61860 [2022-03-01 15:33:23,313 INFO L932 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 [2022-03-01 15:33:23,314 INFO L933 BasicCegarLoop]: 934 mSDtfsCounter, 2407 mSDsluCounter, 9677 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:23,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2407 Valid, 10509 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:33:23,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61860 states. [2022-03-01 15:33:23,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61860 to 23247. [2022-03-01 15:33:23,968 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) [2022-03-01 15:33:24,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23247 states to 23247 states and 66456 transitions. [2022-03-01 15:33:24,018 INFO L78 Accepts]: Start accepts. Automaton has 23247 states and 66456 transitions. Word has length 263 [2022-03-01 15:33:24,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:24,018 INFO L470 AbstractCegarLoop]: Abstraction has 23247 states and 66456 transitions. [2022-03-01 15:33:24,019 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) [2022-03-01 15:33:24,019 INFO L276 IsEmpty]: Start isEmpty. Operand 23247 states and 66456 transitions. [2022-03-01 15:33:24,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:24,052 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:24,052 INFO L514 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] [2022-03-01 15:33:24,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-01 15:33:24,052 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:24,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:24,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1380713307, now seen corresponding path program 59 times [2022-03-01 15:33:24,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:24,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793934592] [2022-03-01 15:33:24,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:24,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:24,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:24,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:24,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793934592] [2022-03-01 15:33:24,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793934592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:24,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:24,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:33:24,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056954823] [2022-03-01 15:33:24,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:24,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:33:24,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:24,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:33:24,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:33:24,228 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) [2022-03-01 15:33:25,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:25,411 INFO L93 Difference]: Finished difference Result 48848 states and 138320 transitions. [2022-03-01 15:33:25,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:33:25,411 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 [2022-03-01 15:33:25,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:25,503 INFO L225 Difference]: With dead ends: 48848 [2022-03-01 15:33:25,503 INFO L226 Difference]: Without dead ends: 48848 [2022-03-01 15:33:25,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=486, Invalid=1866, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 15:33:25,504 INFO L933 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 [2022-03-01 15:33:25,504 INFO L934 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] [2022-03-01 15:33:25,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48848 states. [2022-03-01 15:33:26,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48848 to 23215. [2022-03-01 15:33:26,146 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) [2022-03-01 15:33:26,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23215 states to 23215 states and 66356 transitions. [2022-03-01 15:33:26,194 INFO L78 Accepts]: Start accepts. Automaton has 23215 states and 66356 transitions. Word has length 263 [2022-03-01 15:33:26,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:26,194 INFO L470 AbstractCegarLoop]: Abstraction has 23215 states and 66356 transitions. [2022-03-01 15:33:26,194 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) [2022-03-01 15:33:26,194 INFO L276 IsEmpty]: Start isEmpty. Operand 23215 states and 66356 transitions. [2022-03-01 15:33:26,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:26,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:26,226 INFO L514 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] [2022-03-01 15:33:26,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-01 15:33:26,227 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:26,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:26,227 INFO L85 PathProgramCache]: Analyzing trace with hash -132148315, now seen corresponding path program 60 times [2022-03-01 15:33:26,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:26,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058566797] [2022-03-01 15:33:26,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:26,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:26,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:26,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058566797] [2022-03-01 15:33:26,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058566797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:26,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:26,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:26,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880206540] [2022-03-01 15:33:26,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:26,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:26,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:26,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:26,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:26,405 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) [2022-03-01 15:33:27,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:27,892 INFO L93 Difference]: Finished difference Result 64813 states and 182966 transitions. [2022-03-01 15:33:27,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:33:27,893 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 [2022-03-01 15:33:27,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:28,034 INFO L225 Difference]: With dead ends: 64813 [2022-03-01 15:33:28,035 INFO L226 Difference]: Without dead ends: 64813 [2022-03-01 15:33:28,035 INFO L932 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 [2022-03-01 15:33:28,035 INFO L933 BasicCegarLoop]: 984 mSDtfsCounter, 3161 mSDsluCounter, 9159 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-03-01 15:33:28,035 INFO L934 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] [2022-03-01 15:33:28,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64813 states. [2022-03-01 15:33:28,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64813 to 23575. [2022-03-01 15:33:28,871 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) [2022-03-01 15:33:28,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23575 states to 23575 states and 67650 transitions. [2022-03-01 15:33:28,925 INFO L78 Accepts]: Start accepts. Automaton has 23575 states and 67650 transitions. Word has length 263 [2022-03-01 15:33:28,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:28,925 INFO L470 AbstractCegarLoop]: Abstraction has 23575 states and 67650 transitions. [2022-03-01 15:33:28,925 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) [2022-03-01 15:33:28,925 INFO L276 IsEmpty]: Start isEmpty. Operand 23575 states and 67650 transitions. [2022-03-01 15:33:28,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:28,960 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:28,960 INFO L514 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] [2022-03-01 15:33:28,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-01 15:33:28,960 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:28,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:28,960 INFO L85 PathProgramCache]: Analyzing trace with hash 985496525, now seen corresponding path program 61 times [2022-03-01 15:33:28,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:28,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122610564] [2022-03-01 15:33:28,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:28,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:29,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:29,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:29,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122610564] [2022-03-01 15:33:29,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122610564] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:29,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:29,142 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:29,142 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830248175] [2022-03-01 15:33:29,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:29,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:29,142 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:29,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:29,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:29,143 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) [2022-03-01 15:33:30,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:30,690 INFO L93 Difference]: Finished difference Result 64478 states and 182320 transitions. [2022-03-01 15:33:30,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:33:30,690 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 [2022-03-01 15:33:30,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:30,849 INFO L225 Difference]: With dead ends: 64478 [2022-03-01 15:33:30,849 INFO L226 Difference]: Without dead ends: 64478 [2022-03-01 15:33:30,849 INFO L932 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 [2022-03-01 15:33:30,849 INFO L933 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 [2022-03-01 15:33:30,850 INFO L934 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] [2022-03-01 15:33:30,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64478 states. [2022-03-01 15:33:31,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64478 to 23247. [2022-03-01 15:33:31,596 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) [2022-03-01 15:33:31,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23247 states to 23247 states and 66456 transitions. [2022-03-01 15:33:31,651 INFO L78 Accepts]: Start accepts. Automaton has 23247 states and 66456 transitions. Word has length 263 [2022-03-01 15:33:31,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:31,651 INFO L470 AbstractCegarLoop]: Abstraction has 23247 states and 66456 transitions. [2022-03-01 15:33:31,651 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) [2022-03-01 15:33:31,652 INFO L276 IsEmpty]: Start isEmpty. Operand 23247 states and 66456 transitions. [2022-03-01 15:33:31,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:31,685 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:31,685 INFO L514 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] [2022-03-01 15:33:31,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-01 15:33:31,686 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:31,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:31,686 INFO L85 PathProgramCache]: Analyzing trace with hash -878866773, now seen corresponding path program 62 times [2022-03-01 15:33:31,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:31,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840689685] [2022-03-01 15:33:31,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:31,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:31,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:31,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:31,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840689685] [2022-03-01 15:33:31,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840689685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:31,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:31,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:33:31,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43994604] [2022-03-01 15:33:31,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:31,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:33:31,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:31,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:33:31,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:33:31,983 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) [2022-03-01 15:33:33,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:33,163 INFO L93 Difference]: Finished difference Result 50025 states and 141493 transitions. [2022-03-01 15:33:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:33:33,164 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 [2022-03-01 15:33:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:33,274 INFO L225 Difference]: With dead ends: 50025 [2022-03-01 15:33:33,274 INFO L226 Difference]: Without dead ends: 50025 [2022-03-01 15:33:33,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1950, Unknown=0, NotChecked=0, Total=2450 [2022-03-01 15:33:33,275 INFO L933 BasicCegarLoop]: 910 mSDtfsCounter, 2317 mSDsluCounter, 9094 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:33,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2317 Valid, 9873 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:33:33,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50025 states. [2022-03-01 15:33:33,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50025 to 23211. [2022-03-01 15:33:33,906 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) [2022-03-01 15:33:33,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23211 states to 23211 states and 66345 transitions. [2022-03-01 15:33:33,958 INFO L78 Accepts]: Start accepts. Automaton has 23211 states and 66345 transitions. Word has length 263 [2022-03-01 15:33:33,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:33,958 INFO L470 AbstractCegarLoop]: Abstraction has 23211 states and 66345 transitions. [2022-03-01 15:33:33,958 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) [2022-03-01 15:33:33,959 INFO L276 IsEmpty]: Start isEmpty. Operand 23211 states and 66345 transitions. [2022-03-01 15:33:34,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:34,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:34,119 INFO L514 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] [2022-03-01 15:33:34,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-01 15:33:34,119 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:34,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:34,119 INFO L85 PathProgramCache]: Analyzing trace with hash -2048397497, now seen corresponding path program 63 times [2022-03-01 15:33:34,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:34,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382611781] [2022-03-01 15:33:34,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:34,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:34,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:34,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382611781] [2022-03-01 15:33:34,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382611781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:34,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:34,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:34,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853455043] [2022-03-01 15:33:34,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:34,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:34,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:34,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:34,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:34,323 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) [2022-03-01 15:33:36,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:36,026 INFO L93 Difference]: Finished difference Result 64797 states and 182934 transitions. [2022-03-01 15:33:36,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:33:36,027 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 [2022-03-01 15:33:36,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:36,165 INFO L225 Difference]: With dead ends: 64797 [2022-03-01 15:33:36,165 INFO L226 Difference]: Without dead ends: 64797 [2022-03-01 15:33:36,165 INFO L932 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 [2022-03-01 15:33:36,166 INFO L933 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 [2022-03-01 15:33:36,166 INFO L934 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] [2022-03-01 15:33:36,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64797 states. [2022-03-01 15:33:36,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64797 to 23643. [2022-03-01 15:33:36,825 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) [2022-03-01 15:33:36,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23643 states to 23643 states and 67869 transitions. [2022-03-01 15:33:36,876 INFO L78 Accepts]: Start accepts. Automaton has 23643 states and 67869 transitions. Word has length 263 [2022-03-01 15:33:36,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:36,877 INFO L470 AbstractCegarLoop]: Abstraction has 23643 states and 67869 transitions. [2022-03-01 15:33:36,877 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) [2022-03-01 15:33:36,877 INFO L276 IsEmpty]: Start isEmpty. Operand 23643 states and 67869 transitions. [2022-03-01 15:33:36,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:36,911 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:36,912 INFO L514 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] [2022-03-01 15:33:36,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-01 15:33:36,912 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:36,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:36,912 INFO L85 PathProgramCache]: Analyzing trace with hash -930752657, now seen corresponding path program 64 times [2022-03-01 15:33:36,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:36,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869390459] [2022-03-01 15:33:36,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:36,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:37,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:37,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:37,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869390459] [2022-03-01 15:33:37,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869390459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:37,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:37,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:37,096 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549286416] [2022-03-01 15:33:37,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:37,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:37,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:37,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:37,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:37,097 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) [2022-03-01 15:33:38,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:38,763 INFO L93 Difference]: Finished difference Result 64462 states and 182288 transitions. [2022-03-01 15:33:38,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:33:38,763 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 [2022-03-01 15:33:38,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:38,918 INFO L225 Difference]: With dead ends: 64462 [2022-03-01 15:33:38,918 INFO L226 Difference]: Without dead ends: 64462 [2022-03-01 15:33:38,918 INFO L932 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 [2022-03-01 15:33:38,919 INFO L933 BasicCegarLoop]: 1025 mSDtfsCounter, 2994 mSDsluCounter, 10883 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:38,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2994 Valid, 11800 Invalid, 2174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:33:39,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64462 states. [2022-03-01 15:33:39,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64462 to 23307. [2022-03-01 15:33:39,665 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) [2022-03-01 15:33:39,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23307 states to 23307 states and 66645 transitions. [2022-03-01 15:33:39,717 INFO L78 Accepts]: Start accepts. Automaton has 23307 states and 66645 transitions. Word has length 263 [2022-03-01 15:33:39,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:39,717 INFO L470 AbstractCegarLoop]: Abstraction has 23307 states and 66645 transitions. [2022-03-01 15:33:39,717 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) [2022-03-01 15:33:39,717 INFO L276 IsEmpty]: Start isEmpty. Operand 23307 states and 66645 transitions. [2022-03-01 15:33:39,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:39,751 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:39,752 INFO L514 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] [2022-03-01 15:33:39,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-01 15:33:39,752 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:39,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:39,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1499851341, now seen corresponding path program 65 times [2022-03-01 15:33:39,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:39,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556194477] [2022-03-01 15:33:39,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:39,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:39,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:39,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556194477] [2022-03-01 15:33:39,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556194477] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:39,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:39,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:39,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495351325] [2022-03-01 15:33:39,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:39,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:39,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:39,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:39,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:39,937 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) [2022-03-01 15:33:41,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:41,484 INFO L93 Difference]: Finished difference Result 50465 states and 142711 transitions. [2022-03-01 15:33:41,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:33:41,485 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 [2022-03-01 15:33:41,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:41,604 INFO L225 Difference]: With dead ends: 50465 [2022-03-01 15:33:41,604 INFO L226 Difference]: Without dead ends: 50465 [2022-03-01 15:33:41,605 INFO L932 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 [2022-03-01 15:33:41,605 INFO L933 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 [2022-03-01 15:33:41,605 INFO L934 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] [2022-03-01 15:33:41,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50465 states. [2022-03-01 15:33:42,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50465 to 23275. [2022-03-01 15:33:42,220 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) [2022-03-01 15:33:42,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23275 states to 23275 states and 66545 transitions. [2022-03-01 15:33:42,268 INFO L78 Accepts]: Start accepts. Automaton has 23275 states and 66545 transitions. Word has length 263 [2022-03-01 15:33:42,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:42,268 INFO L470 AbstractCegarLoop]: Abstraction has 23275 states and 66545 transitions. [2022-03-01 15:33:42,268 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) [2022-03-01 15:33:42,268 INFO L276 IsEmpty]: Start isEmpty. Operand 23275 states and 66545 transitions. [2022-03-01 15:33:42,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:42,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:42,301 INFO L514 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] [2022-03-01 15:33:42,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-01 15:33:42,302 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:42,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:42,302 INFO L85 PathProgramCache]: Analyzing trace with hash 894457705, now seen corresponding path program 66 times [2022-03-01 15:33:42,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:42,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298428932] [2022-03-01 15:33:42,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:42,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:42,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:42,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:42,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298428932] [2022-03-01 15:33:42,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298428932] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:42,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:42,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:42,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432928633] [2022-03-01 15:33:42,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:42,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:42,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:42,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:42,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:42,477 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) [2022-03-01 15:33:43,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:43,960 INFO L93 Difference]: Finished difference Result 53971 states and 152020 transitions. [2022-03-01 15:33:43,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:33:43,960 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 [2022-03-01 15:33:43,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:44,082 INFO L225 Difference]: With dead ends: 53971 [2022-03-01 15:33:44,082 INFO L226 Difference]: Without dead ends: 53971 [2022-03-01 15:33:44,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=643, Invalid=2549, Unknown=0, NotChecked=0, Total=3192 [2022-03-01 15:33:44,083 INFO L933 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 [2022-03-01 15:33:44,083 INFO L934 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] [2022-03-01 15:33:44,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53971 states. [2022-03-01 15:33:44,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53971 to 23203. [2022-03-01 15:33:44,629 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) [2022-03-01 15:33:44,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23203 states to 23203 states and 66323 transitions. [2022-03-01 15:33:44,839 INFO L78 Accepts]: Start accepts. Automaton has 23203 states and 66323 transitions. Word has length 263 [2022-03-01 15:33:44,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:44,839 INFO L470 AbstractCegarLoop]: Abstraction has 23203 states and 66323 transitions. [2022-03-01 15:33:44,839 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) [2022-03-01 15:33:44,839 INFO L276 IsEmpty]: Start isEmpty. Operand 23203 states and 66323 transitions. [2022-03-01 15:33:44,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:44,872 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:44,872 INFO L514 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] [2022-03-01 15:33:44,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-01 15:33:44,872 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:44,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:44,873 INFO L85 PathProgramCache]: Analyzing trace with hash -380951387, now seen corresponding path program 67 times [2022-03-01 15:33:44,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:44,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131574719] [2022-03-01 15:33:44,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:44,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:45,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:45,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131574719] [2022-03-01 15:33:45,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131574719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:45,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:45,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:33:45,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036365766] [2022-03-01 15:33:45,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:45,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:33:45,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:45,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:33:45,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:33:45,059 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) [2022-03-01 15:33:46,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:46,613 INFO L93 Difference]: Finished difference Result 65610 states and 185163 transitions. [2022-03-01 15:33:46,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:33:46,613 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 [2022-03-01 15:33:46,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:46,759 INFO L225 Difference]: With dead ends: 65610 [2022-03-01 15:33:46,759 INFO L226 Difference]: Without dead ends: 65610 [2022-03-01 15:33:46,759 INFO L932 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 [2022-03-01 15:33:46,766 INFO L933 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 [2022-03-01 15:33:46,766 INFO L934 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] [2022-03-01 15:33:46,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65610 states. [2022-03-01 15:33:47,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65610 to 23575. [2022-03-01 15:33:47,470 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) [2022-03-01 15:33:47,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23575 states to 23575 states and 67650 transitions. [2022-03-01 15:33:47,517 INFO L78 Accepts]: Start accepts. Automaton has 23575 states and 67650 transitions. Word has length 263 [2022-03-01 15:33:47,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:47,518 INFO L470 AbstractCegarLoop]: Abstraction has 23575 states and 67650 transitions. [2022-03-01 15:33:47,518 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) [2022-03-01 15:33:47,518 INFO L276 IsEmpty]: Start isEmpty. Operand 23575 states and 67650 transitions. [2022-03-01 15:33:47,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:47,551 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:47,551 INFO L514 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] [2022-03-01 15:33:47,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-01 15:33:47,552 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:47,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:47,552 INFO L85 PathProgramCache]: Analyzing trace with hash 736693453, now seen corresponding path program 68 times [2022-03-01 15:33:47,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:47,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796279626] [2022-03-01 15:33:47,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:47,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:47,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:47,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:47,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796279626] [2022-03-01 15:33:47,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796279626] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:47,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:47,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:47,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728012576] [2022-03-01 15:33:47,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:47,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:47,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:47,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:47,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:47,730 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) [2022-03-01 15:33:49,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:49,318 INFO L93 Difference]: Finished difference Result 65472 states and 185081 transitions. [2022-03-01 15:33:49,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:33:49,318 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 [2022-03-01 15:33:49,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:49,453 INFO L225 Difference]: With dead ends: 65472 [2022-03-01 15:33:49,454 INFO L226 Difference]: Without dead ends: 65472 [2022-03-01 15:33:49,454 INFO L932 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 [2022-03-01 15:33:49,454 INFO L933 BasicCegarLoop]: 1058 mSDtfsCounter, 2466 mSDsluCounter, 10646 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-03-01 15:33:49,454 INFO L934 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] [2022-03-01 15:33:49,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65472 states. [2022-03-01 15:33:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65472 to 23247. [2022-03-01 15:33:50,069 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) [2022-03-01 15:33:50,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23247 states to 23247 states and 66456 transitions. [2022-03-01 15:33:50,273 INFO L78 Accepts]: Start accepts. Automaton has 23247 states and 66456 transitions. Word has length 263 [2022-03-01 15:33:50,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:50,273 INFO L470 AbstractCegarLoop]: Abstraction has 23247 states and 66456 transitions. [2022-03-01 15:33:50,273 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) [2022-03-01 15:33:50,274 INFO L276 IsEmpty]: Start isEmpty. Operand 23247 states and 66456 transitions. [2022-03-01 15:33:50,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:50,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:50,306 INFO L514 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] [2022-03-01 15:33:50,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-01 15:33:50,306 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:50,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:50,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1855437787, now seen corresponding path program 69 times [2022-03-01 15:33:50,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:50,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531367611] [2022-03-01 15:33:50,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:50,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:50,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:50,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531367611] [2022-03-01 15:33:50,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531367611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:50,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:50,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:33:50,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469154250] [2022-03-01 15:33:50,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:50,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:33:50,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:50,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:33:50,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:33:50,490 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) [2022-03-01 15:33:51,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:51,609 INFO L93 Difference]: Finished difference Result 50016 states and 141555 transitions. [2022-03-01 15:33:51,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:33:51,610 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 [2022-03-01 15:33:51,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:51,724 INFO L225 Difference]: With dead ends: 50016 [2022-03-01 15:33:51,725 INFO L226 Difference]: Without dead ends: 50016 [2022-03-01 15:33:51,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=503, Invalid=1947, Unknown=0, NotChecked=0, Total=2450 [2022-03-01 15:33:51,725 INFO L933 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 [2022-03-01 15:33:51,725 INFO L934 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] [2022-03-01 15:33:51,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50016 states. [2022-03-01 15:33:52,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50016 to 23215. [2022-03-01 15:33:52,360 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) [2022-03-01 15:33:52,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23215 states to 23215 states and 66356 transitions. [2022-03-01 15:33:52,408 INFO L78 Accepts]: Start accepts. Automaton has 23215 states and 66356 transitions. Word has length 263 [2022-03-01 15:33:52,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:52,408 INFO L470 AbstractCegarLoop]: Abstraction has 23215 states and 66356 transitions. [2022-03-01 15:33:52,409 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) [2022-03-01 15:33:52,409 INFO L276 IsEmpty]: Start isEmpty. Operand 23215 states and 66356 transitions. [2022-03-01 15:33:52,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:52,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:52,440 INFO L514 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] [2022-03-01 15:33:52,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-01 15:33:52,440 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:52,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:52,441 INFO L85 PathProgramCache]: Analyzing trace with hash 342576165, now seen corresponding path program 70 times [2022-03-01 15:33:52,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:52,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534617499] [2022-03-01 15:33:52,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:52,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:52,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:52,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534617499] [2022-03-01 15:33:52,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534617499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:52,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:52,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:52,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388034575] [2022-03-01 15:33:52,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:52,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:52,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:52,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:52,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:52,627 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) [2022-03-01 15:33:54,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:54,126 INFO L93 Difference]: Finished difference Result 65765 states and 185592 transitions. [2022-03-01 15:33:54,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:33:54,126 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 [2022-03-01 15:33:54,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:54,273 INFO L225 Difference]: With dead ends: 65765 [2022-03-01 15:33:54,273 INFO L226 Difference]: Without dead ends: 65765 [2022-03-01 15:33:54,273 INFO L932 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 [2022-03-01 15:33:54,274 INFO L933 BasicCegarLoop]: 968 mSDtfsCounter, 2833 mSDsluCounter, 9810 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:54,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2833 Valid, 10660 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:33:54,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65765 states. [2022-03-01 15:33:55,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65765 to 23575. [2022-03-01 15:33:55,049 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) [2022-03-01 15:33:55,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23575 states to 23575 states and 67650 transitions. [2022-03-01 15:33:55,101 INFO L78 Accepts]: Start accepts. Automaton has 23575 states and 67650 transitions. Word has length 263 [2022-03-01 15:33:55,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:55,101 INFO L470 AbstractCegarLoop]: Abstraction has 23575 states and 67650 transitions. [2022-03-01 15:33:55,101 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) [2022-03-01 15:33:55,101 INFO L276 IsEmpty]: Start isEmpty. Operand 23575 states and 67650 transitions. [2022-03-01 15:33:55,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:55,135 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:55,135 INFO L514 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] [2022-03-01 15:33:55,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-01 15:33:55,135 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:55,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:55,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1460221005, now seen corresponding path program 71 times [2022-03-01 15:33:55,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:55,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594267805] [2022-03-01 15:33:55,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:55,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:55,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:55,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:55,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594267805] [2022-03-01 15:33:55,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594267805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:55,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:55,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:33:55,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539998950] [2022-03-01 15:33:55,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:55,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:33:55,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:55,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:33:55,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:33:55,312 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) [2022-03-01 15:33:56,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:56,896 INFO L93 Difference]: Finished difference Result 65370 states and 184785 transitions. [2022-03-01 15:33:56,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:33:56,896 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 [2022-03-01 15:33:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:57,044 INFO L225 Difference]: With dead ends: 65370 [2022-03-01 15:33:57,044 INFO L226 Difference]: Without dead ends: 65370 [2022-03-01 15:33:57,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=596, Invalid=2374, Unknown=0, NotChecked=0, Total=2970 [2022-03-01 15:33:57,044 INFO L933 BasicCegarLoop]: 991 mSDtfsCounter, 2369 mSDsluCounter, 10104 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2022-03-01 15:33:57,044 INFO L934 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] [2022-03-01 15:33:57,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65370 states. [2022-03-01 15:33:57,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65370 to 23247. [2022-03-01 15:33:57,834 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) [2022-03-01 15:33:57,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23247 states to 23247 states and 66456 transitions. [2022-03-01 15:33:57,882 INFO L78 Accepts]: Start accepts. Automaton has 23247 states and 66456 transitions. Word has length 263 [2022-03-01 15:33:57,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:57,882 INFO L470 AbstractCegarLoop]: Abstraction has 23247 states and 66456 transitions. [2022-03-01 15:33:57,882 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) [2022-03-01 15:33:57,882 INFO L276 IsEmpty]: Start isEmpty. Operand 23247 states and 66456 transitions. [2022-03-01 15:33:57,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:33:57,914 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:57,914 INFO L514 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] [2022-03-01 15:33:57,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-01 15:33:57,914 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:57,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:57,914 INFO L85 PathProgramCache]: Analyzing trace with hash -404142293, now seen corresponding path program 72 times [2022-03-01 15:33:57,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:57,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028255659] [2022-03-01 15:33:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:57,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:58,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:58,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:58,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028255659] [2022-03-01 15:33:58,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028255659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:58,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:58,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:33:58,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824858942] [2022-03-01 15:33:58,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:58,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:33:58,085 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:58,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:33:58,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:33:58,085 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) [2022-03-01 15:33:59,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:59,236 INFO L93 Difference]: Finished difference Result 51033 states and 144269 transitions. [2022-03-01 15:33:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:33:59,237 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 [2022-03-01 15:33:59,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:59,529 INFO L225 Difference]: With dead ends: 51033 [2022-03-01 15:33:59,530 INFO L226 Difference]: Without dead ends: 51033 [2022-03-01 15:33:59,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=489, Invalid=1863, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 15:33:59,530 INFO L933 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 [2022-03-01 15:33:59,530 INFO L934 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] [2022-03-01 15:33:59,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51033 states. [2022-03-01 15:34:00,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51033 to 23211. [2022-03-01 15:34:00,114 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) [2022-03-01 15:34:00,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23211 states to 23211 states and 66345 transitions. [2022-03-01 15:34:00,161 INFO L78 Accepts]: Start accepts. Automaton has 23211 states and 66345 transitions. Word has length 263 [2022-03-01 15:34:00,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:00,161 INFO L470 AbstractCegarLoop]: Abstraction has 23211 states and 66345 transitions. [2022-03-01 15:34:00,161 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) [2022-03-01 15:34:00,162 INFO L276 IsEmpty]: Start isEmpty. Operand 23211 states and 66345 transitions. [2022-03-01 15:34:00,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:00,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:00,193 INFO L514 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] [2022-03-01 15:34:00,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-01 15:34:00,193 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:00,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:00,194 INFO L85 PathProgramCache]: Analyzing trace with hash 88731463, now seen corresponding path program 73 times [2022-03-01 15:34:00,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:00,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970511839] [2022-03-01 15:34:00,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:00,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:00,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:00,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:00,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970511839] [2022-03-01 15:34:00,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970511839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:00,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:00,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:34:00,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456507285] [2022-03-01 15:34:00,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:00,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:34:00,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:00,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:34:00,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:34:00,374 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) [2022-03-01 15:34:02,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:02,151 INFO L93 Difference]: Finished difference Result 79465 states and 223632 transitions. [2022-03-01 15:34:02,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:34:02,152 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 [2022-03-01 15:34:02,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:02,322 INFO L225 Difference]: With dead ends: 79465 [2022-03-01 15:34:02,322 INFO L226 Difference]: Without dead ends: 79465 [2022-03-01 15:34:02,323 INFO L932 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 [2022-03-01 15:34:02,323 INFO L933 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 [2022-03-01 15:34:02,323 INFO L934 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] [2022-03-01 15:34:02,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79465 states. [2022-03-01 15:34:03,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79465 to 23643. [2022-03-01 15:34:03,164 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) [2022-03-01 15:34:03,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23643 states to 23643 states and 67869 transitions. [2022-03-01 15:34:03,214 INFO L78 Accepts]: Start accepts. Automaton has 23643 states and 67869 transitions. Word has length 263 [2022-03-01 15:34:03,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:03,215 INFO L470 AbstractCegarLoop]: Abstraction has 23643 states and 67869 transitions. [2022-03-01 15:34:03,215 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) [2022-03-01 15:34:03,215 INFO L276 IsEmpty]: Start isEmpty. Operand 23643 states and 67869 transitions. [2022-03-01 15:34:03,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:03,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:03,248 INFO L514 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] [2022-03-01 15:34:03,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-01 15:34:03,248 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:03,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:03,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1206376303, now seen corresponding path program 74 times [2022-03-01 15:34:03,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:03,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890883398] [2022-03-01 15:34:03,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:03,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:03,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:03,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:03,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890883398] [2022-03-01 15:34:03,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890883398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:03,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:03,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:34:03,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258779357] [2022-03-01 15:34:03,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:03,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:34:03,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:03,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:34:03,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:34:03,427 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) [2022-03-01 15:34:05,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:05,153 INFO L93 Difference]: Finished difference Result 79186 states and 223227 transitions. [2022-03-01 15:34:05,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:34:05,153 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 [2022-03-01 15:34:05,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:05,338 INFO L225 Difference]: With dead ends: 79186 [2022-03-01 15:34:05,338 INFO L226 Difference]: Without dead ends: 79186 [2022-03-01 15:34:05,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=744, Invalid=2796, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:34:05,339 INFO L933 BasicCegarLoop]: 1121 mSDtfsCounter, 2990 mSDsluCounter, 10401 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-03-01 15:34:05,339 INFO L934 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] [2022-03-01 15:34:05,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79186 states. [2022-03-01 15:34:06,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79186 to 23307. [2022-03-01 15:34:06,193 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) [2022-03-01 15:34:06,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23307 states to 23307 states and 66645 transitions. [2022-03-01 15:34:06,244 INFO L78 Accepts]: Start accepts. Automaton has 23307 states and 66645 transitions. Word has length 263 [2022-03-01 15:34:06,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:06,244 INFO L470 AbstractCegarLoop]: Abstraction has 23307 states and 66645 transitions. [2022-03-01 15:34:06,244 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) [2022-03-01 15:34:06,245 INFO L276 IsEmpty]: Start isEmpty. Operand 23307 states and 66645 transitions. [2022-03-01 15:34:06,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:06,278 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:06,278 INFO L514 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] [2022-03-01 15:34:06,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-01 15:34:06,278 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:06,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:06,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1969846659, now seen corresponding path program 75 times [2022-03-01 15:34:06,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:06,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095132568] [2022-03-01 15:34:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:06,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:06,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:06,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:06,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095132568] [2022-03-01 15:34:06,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095132568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:06,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:06,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:34:06,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629856446] [2022-03-01 15:34:06,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:06,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:34:06,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:06,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:34:06,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:34:06,483 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) [2022-03-01 15:34:07,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:07,947 INFO L93 Difference]: Finished difference Result 63886 states and 180146 transitions. [2022-03-01 15:34:07,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:34:07,947 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 [2022-03-01 15:34:07,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:08,084 INFO L225 Difference]: With dead ends: 63886 [2022-03-01 15:34:08,084 INFO L226 Difference]: Without dead ends: 63886 [2022-03-01 15:34:08,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=621, Invalid=2349, Unknown=0, NotChecked=0, Total=2970 [2022-03-01 15:34:08,084 INFO L933 BasicCegarLoop]: 967 mSDtfsCounter, 2481 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:08,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2481 Valid, 9638 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:34:08,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63886 states. [2022-03-01 15:34:08,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63886 to 23275. [2022-03-01 15:34:08,846 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) [2022-03-01 15:34:08,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23275 states to 23275 states and 66545 transitions. [2022-03-01 15:34:08,893 INFO L78 Accepts]: Start accepts. Automaton has 23275 states and 66545 transitions. Word has length 263 [2022-03-01 15:34:08,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:08,893 INFO L470 AbstractCegarLoop]: Abstraction has 23275 states and 66545 transitions. [2022-03-01 15:34:08,893 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) [2022-03-01 15:34:08,893 INFO L276 IsEmpty]: Start isEmpty. Operand 23275 states and 66545 transitions. [2022-03-01 15:34:08,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:08,925 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:08,925 INFO L514 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] [2022-03-01 15:34:08,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-01 15:34:08,926 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:08,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:08,926 INFO L85 PathProgramCache]: Analyzing trace with hash -2010098535, now seen corresponding path program 76 times [2022-03-01 15:34:08,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:08,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273156453] [2022-03-01 15:34:08,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:08,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:09,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:09,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273156453] [2022-03-01 15:34:09,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273156453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:09,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:09,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:34:09,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749381483] [2022-03-01 15:34:09,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:09,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:34:09,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:09,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:34:09,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:34:09,112 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) [2022-03-01 15:34:10,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:10,702 INFO L93 Difference]: Finished difference Result 66821 states and 187628 transitions. [2022-03-01 15:34:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:34:10,703 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 [2022-03-01 15:34:10,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:10,859 INFO L225 Difference]: With dead ends: 66821 [2022-03-01 15:34:10,859 INFO L226 Difference]: Without dead ends: 66821 [2022-03-01 15:34:10,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=641, Invalid=2551, Unknown=0, NotChecked=0, Total=3192 [2022-03-01 15:34:10,860 INFO L933 BasicCegarLoop]: 1008 mSDtfsCounter, 2658 mSDsluCounter, 10955 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-03-01 15:34:10,860 INFO L934 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] [2022-03-01 15:34:10,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66821 states. [2022-03-01 15:34:11,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66821 to 23187. [2022-03-01 15:34:11,594 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) [2022-03-01 15:34:11,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23187 states to 23187 states and 66279 transitions. [2022-03-01 15:34:11,642 INFO L78 Accepts]: Start accepts. Automaton has 23187 states and 66279 transitions. Word has length 263 [2022-03-01 15:34:11,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:11,643 INFO L470 AbstractCegarLoop]: Abstraction has 23187 states and 66279 transitions. [2022-03-01 15:34:11,643 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) [2022-03-01 15:34:11,643 INFO L276 IsEmpty]: Start isEmpty. Operand 23187 states and 66279 transitions. [2022-03-01 15:34:11,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:11,674 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:11,675 INFO L514 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] [2022-03-01 15:34:11,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-01 15:34:11,675 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:11,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:11,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1007440731, now seen corresponding path program 77 times [2022-03-01 15:34:11,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:11,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179113118] [2022-03-01 15:34:11,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:11,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:11,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:11,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179113118] [2022-03-01 15:34:11,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179113118] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:11,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:11,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:34:11,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110247425] [2022-03-01 15:34:11,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:11,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:34:11,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:11,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:34:11,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:34:11,853 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) [2022-03-01 15:34:13,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:13,087 INFO L93 Difference]: Finished difference Result 46326 states and 130542 transitions. [2022-03-01 15:34:13,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:34:13,088 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 [2022-03-01 15:34:13,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:13,180 INFO L225 Difference]: With dead ends: 46326 [2022-03-01 15:34:13,180 INFO L226 Difference]: Without dead ends: 46326 [2022-03-01 15:34:13,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=482, Invalid=2068, Unknown=0, NotChecked=0, Total=2550 [2022-03-01 15:34:13,181 INFO L933 BasicCegarLoop]: 854 mSDtfsCounter, 2052 mSDsluCounter, 8260 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:13,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2052 Valid, 9010 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:34:13,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46326 states. [2022-03-01 15:34:13,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46326 to 23563. [2022-03-01 15:34:13,796 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) [2022-03-01 15:34:13,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23563 states to 23563 states and 67617 transitions. [2022-03-01 15:34:13,847 INFO L78 Accepts]: Start accepts. Automaton has 23563 states and 67617 transitions. Word has length 263 [2022-03-01 15:34:13,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:13,848 INFO L470 AbstractCegarLoop]: Abstraction has 23563 states and 67617 transitions. [2022-03-01 15:34:13,848 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) [2022-03-01 15:34:13,848 INFO L276 IsEmpty]: Start isEmpty. Operand 23563 states and 67617 transitions. [2022-03-01 15:34:13,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:13,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:13,882 INFO L514 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] [2022-03-01 15:34:13,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-01 15:34:13,882 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:13,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:13,882 INFO L85 PathProgramCache]: Analyzing trace with hash 110204109, now seen corresponding path program 78 times [2022-03-01 15:34:13,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:13,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481914034] [2022-03-01 15:34:13,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:13,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:14,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:14,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:14,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481914034] [2022-03-01 15:34:14,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481914034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:14,060 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:14,060 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:34:14,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045067696] [2022-03-01 15:34:14,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:14,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:34:14,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:14,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:34:14,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:34:14,061 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) [2022-03-01 15:34:15,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:15,271 INFO L93 Difference]: Finished difference Result 46431 states and 131040 transitions. [2022-03-01 15:34:15,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:34:15,271 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 [2022-03-01 15:34:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:15,363 INFO L225 Difference]: With dead ends: 46431 [2022-03-01 15:34:15,364 INFO L226 Difference]: Without dead ends: 46431 [2022-03-01 15:34:15,364 INFO L932 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 [2022-03-01 15:34:15,364 INFO L933 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 [2022-03-01 15:34:15,364 INFO L934 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] [2022-03-01 15:34:15,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46431 states. [2022-03-01 15:34:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46431 to 23235. [2022-03-01 15:34:15,847 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) [2022-03-01 15:34:15,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23235 states to 23235 states and 66423 transitions. [2022-03-01 15:34:15,900 INFO L78 Accepts]: Start accepts. Automaton has 23235 states and 66423 transitions. Word has length 263 [2022-03-01 15:34:15,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:15,900 INFO L470 AbstractCegarLoop]: Abstraction has 23235 states and 66423 transitions. [2022-03-01 15:34:15,900 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) [2022-03-01 15:34:15,900 INFO L276 IsEmpty]: Start isEmpty. Operand 23235 states and 66423 transitions. [2022-03-01 15:34:15,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:15,935 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:15,935 INFO L514 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] [2022-03-01 15:34:15,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-01 15:34:15,935 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:15,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:15,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1228948443, now seen corresponding path program 79 times [2022-03-01 15:34:15,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:15,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030016092] [2022-03-01 15:34:15,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:15,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:16,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:16,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030016092] [2022-03-01 15:34:16,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030016092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:16,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:16,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-01 15:34:16,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645882144] [2022-03-01 15:34:16,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:16,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:34:16,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:16,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:34:16,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:34:16,211 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) [2022-03-01 15:34:17,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:17,046 INFO L93 Difference]: Finished difference Result 31131 states and 87951 transitions. [2022-03-01 15:34:17,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 15:34:17,046 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 [2022-03-01 15:34:17,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:17,111 INFO L225 Difference]: With dead ends: 31131 [2022-03-01 15:34:17,111 INFO L226 Difference]: Without dead ends: 31131 [2022-03-01 15:34:17,112 INFO L932 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 [2022-03-01 15:34:17,112 INFO L933 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 [2022-03-01 15:34:17,112 INFO L934 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] [2022-03-01 15:34:17,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31131 states. [2022-03-01 15:34:17,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31131 to 23203. [2022-03-01 15:34:17,635 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) [2022-03-01 15:34:17,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23203 states to 23203 states and 66323 transitions. [2022-03-01 15:34:17,685 INFO L78 Accepts]: Start accepts. Automaton has 23203 states and 66323 transitions. Word has length 263 [2022-03-01 15:34:17,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:17,685 INFO L470 AbstractCegarLoop]: Abstraction has 23203 states and 66323 transitions. [2022-03-01 15:34:17,685 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) [2022-03-01 15:34:17,685 INFO L276 IsEmpty]: Start isEmpty. Operand 23203 states and 66323 transitions. [2022-03-01 15:34:17,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:17,719 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:17,719 INFO L514 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] [2022-03-01 15:34:17,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-01 15:34:17,719 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:17,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:17,720 INFO L85 PathProgramCache]: Analyzing trace with hash -283913179, now seen corresponding path program 80 times [2022-03-01 15:34:17,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:17,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970370379] [2022-03-01 15:34:17,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:17,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:17,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:17,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970370379] [2022-03-01 15:34:17,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970370379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:17,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:17,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:34:17,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860128816] [2022-03-01 15:34:17,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:17,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:34:17,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:17,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:34:17,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:34:17,904 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) [2022-03-01 15:34:18,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:18,908 INFO L93 Difference]: Finished difference Result 46145 states and 130055 transitions. [2022-03-01 15:34:18,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 15:34:18,909 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 [2022-03-01 15:34:18,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:18,997 INFO L225 Difference]: With dead ends: 46145 [2022-03-01 15:34:18,998 INFO L226 Difference]: Without dead ends: 46145 [2022-03-01 15:34:18,998 INFO L932 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 [2022-03-01 15:34:18,998 INFO L933 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 [2022-03-01 15:34:18,999 INFO L934 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] [2022-03-01 15:34:19,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46145 states. [2022-03-01 15:34:19,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46145 to 23563. [2022-03-01 15:34:19,550 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) [2022-03-01 15:34:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23563 states to 23563 states and 67617 transitions. [2022-03-01 15:34:19,598 INFO L78 Accepts]: Start accepts. Automaton has 23563 states and 67617 transitions. Word has length 263 [2022-03-01 15:34:19,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:19,599 INFO L470 AbstractCegarLoop]: Abstraction has 23563 states and 67617 transitions. [2022-03-01 15:34:19,599 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) [2022-03-01 15:34:19,599 INFO L276 IsEmpty]: Start isEmpty. Operand 23563 states and 67617 transitions. [2022-03-01 15:34:19,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:19,630 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:19,631 INFO L514 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] [2022-03-01 15:34:19,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-01 15:34:19,631 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:19,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:19,631 INFO L85 PathProgramCache]: Analyzing trace with hash 833731661, now seen corresponding path program 81 times [2022-03-01 15:34:19,631 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:19,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792755453] [2022-03-01 15:34:19,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:19,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:19,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:19,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792755453] [2022-03-01 15:34:19,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792755453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:19,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:19,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:34:19,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463177110] [2022-03-01 15:34:19,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:19,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:34:19,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:19,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:34:19,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:34:19,809 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) [2022-03-01 15:34:20,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:20,894 INFO L93 Difference]: Finished difference Result 45993 states and 129828 transitions. [2022-03-01 15:34:20,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 15:34:20,895 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 [2022-03-01 15:34:20,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:20,995 INFO L225 Difference]: With dead ends: 45993 [2022-03-01 15:34:20,996 INFO L226 Difference]: Without dead ends: 45993 [2022-03-01 15:34:20,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1900, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 15:34:20,996 INFO L933 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 [2022-03-01 15:34:20,996 INFO L934 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] [2022-03-01 15:34:21,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45993 states. [2022-03-01 15:34:21,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45993 to 23235. [2022-03-01 15:34:21,504 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) [2022-03-01 15:34:21,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23235 states to 23235 states and 66423 transitions. [2022-03-01 15:34:21,717 INFO L78 Accepts]: Start accepts. Automaton has 23235 states and 66423 transitions. Word has length 263 [2022-03-01 15:34:21,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:21,717 INFO L470 AbstractCegarLoop]: Abstraction has 23235 states and 66423 transitions. [2022-03-01 15:34:21,717 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) [2022-03-01 15:34:21,718 INFO L276 IsEmpty]: Start isEmpty. Operand 23235 states and 66423 transitions. [2022-03-01 15:34:21,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:21,749 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:21,749 INFO L514 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] [2022-03-01 15:34:21,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-01 15:34:21,749 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:21,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:21,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1030631637, now seen corresponding path program 82 times [2022-03-01 15:34:21,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:21,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101902659] [2022-03-01 15:34:21,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:21,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:21,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:21,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:21,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101902659] [2022-03-01 15:34:21,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101902659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:21,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:21,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:34:21,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664031029] [2022-03-01 15:34:21,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:21,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:34:21,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:21,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:34:21,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:34:21,923 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) [2022-03-01 15:34:22,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:22,764 INFO L93 Difference]: Finished difference Result 31413 states and 88732 transitions. [2022-03-01 15:34:22,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:34:22,765 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 [2022-03-01 15:34:22,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:22,826 INFO L225 Difference]: With dead ends: 31413 [2022-03-01 15:34:22,827 INFO L226 Difference]: Without dead ends: 31413 [2022-03-01 15:34:22,827 INFO L932 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 [2022-03-01 15:34:22,827 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 1936 mSDsluCounter, 7108 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:22,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1936 Valid, 7701 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:22,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31413 states. [2022-03-01 15:34:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31413 to 23199. [2022-03-01 15:34:23,375 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) [2022-03-01 15:34:23,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23199 states to 23199 states and 66312 transitions. [2022-03-01 15:34:23,431 INFO L78 Accepts]: Start accepts. Automaton has 23199 states and 66312 transitions. Word has length 263 [2022-03-01 15:34:23,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:23,432 INFO L470 AbstractCegarLoop]: Abstraction has 23199 states and 66312 transitions. [2022-03-01 15:34:23,432 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) [2022-03-01 15:34:23,432 INFO L276 IsEmpty]: Start isEmpty. Operand 23199 states and 66312 transitions. [2022-03-01 15:34:23,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:23,481 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:23,482 INFO L514 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] [2022-03-01 15:34:23,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-01 15:34:23,482 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:23,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:23,483 INFO L85 PathProgramCache]: Analyzing trace with hash -537757881, now seen corresponding path program 83 times [2022-03-01 15:34:23,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:23,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939377091] [2022-03-01 15:34:23,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:23,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:23,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:23,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:23,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939377091] [2022-03-01 15:34:23,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939377091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:23,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:23,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:34:23,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479404002] [2022-03-01 15:34:23,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:23,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:34:23,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:23,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:34:23,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:34:23,680 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) [2022-03-01 15:34:25,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:25,111 INFO L93 Difference]: Finished difference Result 63345 states and 178347 transitions. [2022-03-01 15:34:25,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:34:25,111 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 [2022-03-01 15:34:25,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:25,268 INFO L225 Difference]: With dead ends: 63345 [2022-03-01 15:34:25,268 INFO L226 Difference]: Without dead ends: 63345 [2022-03-01 15:34:25,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=601, Invalid=2479, Unknown=0, NotChecked=0, Total=3080 [2022-03-01 15:34:25,269 INFO L933 BasicCegarLoop]: 987 mSDtfsCounter, 2380 mSDsluCounter, 9331 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:25,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2380 Valid, 10194 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:34:25,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63345 states. [2022-03-01 15:34:26,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63345 to 23631. [2022-03-01 15:34:26,045 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) [2022-03-01 15:34:26,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23631 states to 23631 states and 67836 transitions. [2022-03-01 15:34:26,100 INFO L78 Accepts]: Start accepts. Automaton has 23631 states and 67836 transitions. Word has length 263 [2022-03-01 15:34:26,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:26,100 INFO L470 AbstractCegarLoop]: Abstraction has 23631 states and 67836 transitions. [2022-03-01 15:34:26,100 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) [2022-03-01 15:34:26,100 INFO L276 IsEmpty]: Start isEmpty. Operand 23631 states and 67836 transitions. [2022-03-01 15:34:26,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:26,137 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:26,137 INFO L514 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] [2022-03-01 15:34:26,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-01 15:34:26,137 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:26,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:26,137 INFO L85 PathProgramCache]: Analyzing trace with hash 579886959, now seen corresponding path program 84 times [2022-03-01 15:34:26,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:26,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390199198] [2022-03-01 15:34:26,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:26,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:26,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:26,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:26,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390199198] [2022-03-01 15:34:26,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390199198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:26,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:26,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:34:26,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804461598] [2022-03-01 15:34:26,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:26,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:34:26,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:26,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:34:26,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:34:26,317 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) [2022-03-01 15:34:27,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:27,702 INFO L93 Difference]: Finished difference Result 63369 states and 178683 transitions. [2022-03-01 15:34:27,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 15:34:27,702 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 [2022-03-01 15:34:27,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:27,846 INFO L225 Difference]: With dead ends: 63369 [2022-03-01 15:34:27,846 INFO L226 Difference]: Without dead ends: 63369 [2022-03-01 15:34:27,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=600, Invalid=2480, Unknown=0, NotChecked=0, Total=3080 [2022-03-01 15:34:27,847 INFO L933 BasicCegarLoop]: 1057 mSDtfsCounter, 2275 mSDsluCounter, 10652 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:27,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2275 Valid, 11597 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:34:28,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63369 states. [2022-03-01 15:34:28,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63369 to 23295. [2022-03-01 15:34:28,613 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) [2022-03-01 15:34:28,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23295 states to 23295 states and 66612 transitions. [2022-03-01 15:34:28,668 INFO L78 Accepts]: Start accepts. Automaton has 23295 states and 66612 transitions. Word has length 263 [2022-03-01 15:34:28,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:28,668 INFO L470 AbstractCegarLoop]: Abstraction has 23295 states and 66612 transitions. [2022-03-01 15:34:28,669 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) [2022-03-01 15:34:28,669 INFO L276 IsEmpty]: Start isEmpty. Operand 23295 states and 66612 transitions. [2022-03-01 15:34:28,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:34:28,705 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:28,705 INFO L514 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] [2022-03-01 15:34:28,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-01 15:34:28,706 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:28,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:28,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1698631293, now seen corresponding path program 85 times [2022-03-01 15:34:28,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:28,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423724060] [2022-03-01 15:34:28,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:28,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:28,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:28,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423724060] [2022-03-01 15:34:28,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423724060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:28,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:28,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-01 15:34:28,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202675531] [2022-03-01 15:34:28,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:28,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-01 15:34:28,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:28,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-01 15:34:28,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:34:28,893 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)