/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-sre-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 13:51:57,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 13:51:57,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 13:51:58,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 13:51:58,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 13:51:58,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 13:51:58,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 13:51:58,066 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 [2022-03-15 13:51:58,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 13:51:58,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 13:51:58,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 13:51:58,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 13:51:58,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 13:51:58,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 13:51:58,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 13:51:58,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 13:51:58,092 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 13:51:58,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 13:51:58,093 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 13:51:58,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 13:51:58,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 13:51:58,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 13:51:58,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 13:51:58,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 13:51:58,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 13:51:58,094 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 13:51:58,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 13:51:58,094 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 13:51:58,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 13:51:58,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 13:51:58,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 13:51:58,094 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 13:51:58,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 13:51:58,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:51:58,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 13:51:58,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 13:51:58,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 13:51:58,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 13:51:58,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 13:51:58,095 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 13:51:58,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 13:51:58,095 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 13:51:58,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 13:51:58,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 13:51:58,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 13:51:58,291 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 13:51:58,293 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 13:51:58,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2022-03-15 13:51:58,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1653ca386/d48c88d0618445f09ad7282cf5bee2db/FLAG8cedba0d1 [2022-03-15 13:51:58,694 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 13:51:58,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2022-03-15 13:51:58,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1653ca386/d48c88d0618445f09ad7282cf5bee2db/FLAG8cedba0d1 [2022-03-15 13:51:58,715 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1653ca386/d48c88d0618445f09ad7282cf5bee2db [2022-03-15 13:51:58,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 13:51:58,717 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 13:51:58,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 13:51:58,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 13:51:58,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 13:51:58,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:51:58" (1/1) ... [2022-03-15 13:51:58,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@95c3555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58, skipping insertion in model container [2022-03-15 13:51:58,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:51:58" (1/1) ... [2022-03-15 13:51:58,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 13:51:58,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 13:51:58,883 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-sre-symm.wvr.c[2133,2146] [2022-03-15 13:51:58,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:51:58,890 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 13:51:58,902 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-sre-symm.wvr.c[2133,2146] [2022-03-15 13:51:58,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:51:58,911 INFO L208 MainTranslator]: Completed translation [2022-03-15 13:51:58,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58 WrapperNode [2022-03-15 13:51:58,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 13:51:58,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 13:51:58,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 13:51:58,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 13:51:58,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58" (1/1) ... [2022-03-15 13:51:58,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58" (1/1) ... [2022-03-15 13:51:58,934 INFO L137 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-03-15 13:51:58,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 13:51:58,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 13:51:58,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 13:51:58,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 13:51:58,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58" (1/1) ... [2022-03-15 13:51:58,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58" (1/1) ... [2022-03-15 13:51:58,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58" (1/1) ... [2022-03-15 13:51:58,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58" (1/1) ... [2022-03-15 13:51:58,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58" (1/1) ... [2022-03-15 13:51:58,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58" (1/1) ... [2022-03-15 13:51:58,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58" (1/1) ... [2022-03-15 13:51:58,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 13:51:58,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 13:51:58,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 13:51:58,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 13:51:58,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58" (1/1) ... [2022-03-15 13:51:58,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:51:58,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:51:58,995 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) [2022-03-15 13:51:58,996 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 [2022-03-15 13:51:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 13:51:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 13:51:59,027 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 13:51:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 13:51:59,027 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 13:51:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 13:51:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 13:51:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 13:51:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 13:51:59,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 13:51:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 13:51:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 13:51:59,029 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 13:51:59,076 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 13:51:59,077 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 13:51:59,230 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 13:51:59,236 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 13:51:59,236 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 13:51:59,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:51:59 BoogieIcfgContainer [2022-03-15 13:51:59,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 13:51:59,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 13:51:59,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 13:51:59,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 13:51:59,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:51:58" (1/3) ... [2022-03-15 13:51:59,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d398be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:51:59, skipping insertion in model container [2022-03-15 13:51:59,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:58" (2/3) ... [2022-03-15 13:51:59,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d398be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:51:59, skipping insertion in model container [2022-03-15 13:51:59,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:51:59" (3/3) ... [2022-03-15 13:51:59,243 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-sre-symm.wvr.c [2022-03-15 13:51:59,247 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 13:51:59,247 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 13:51:59,247 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 13:51:59,247 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 13:51:59,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:59,288 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-15 13:51:59,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 13:51:59,322 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 [2022-03-15 13:51:59,322 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 13:51:59,331 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 102 transitions, 220 flow [2022-03-15 13:51:59,406 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 734 states, 733 states have (on average 2.671214188267394) internal successors, (1958), 733 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:59,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 734 states, 733 states have (on average 2.671214188267394) internal successors, (1958), 733 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:59,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-15 13:51:59,426 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:59,427 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] [2022-03-15 13:51:59,427 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:59,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:59,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1564991262, now seen corresponding path program 1 times [2022-03-15 13:51:59,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:59,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909930357] [2022-03-15 13:51:59,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:59,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:59,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:59,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909930357] [2022-03-15 13:51:59,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909930357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:59,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:59,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 13:51:59,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560401637] [2022-03-15 13:51:59,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:59,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 13:51:59,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:59,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 13:51:59,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-15 13:51:59,842 INFO L87 Difference]: Start difference. First operand has 734 states, 733 states have (on average 2.671214188267394) internal successors, (1958), 733 states have internal predecessors, (1958), 0 states have call successors, (0), 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 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:00,057 INFO L93 Difference]: Finished difference Result 1469 states and 3772 transitions. [2022-03-15 13:52:00,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:52:00,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-03-15 13:52:00,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:00,091 INFO L225 Difference]: With dead ends: 1469 [2022-03-15 13:52:00,091 INFO L226 Difference]: Without dead ends: 1225 [2022-03-15 13:52:00,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-03-15 13:52:00,095 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 206 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:00,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 613 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:00,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2022-03-15 13:52:00,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 814. [2022-03-15 13:52:00,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 2.6186961869618695) internal successors, (2129), 813 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 2129 transitions. [2022-03-15 13:52:00,181 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 2129 transitions. Word has length 73 [2022-03-15 13:52:00,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:00,181 INFO L470 AbstractCegarLoop]: Abstraction has 814 states and 2129 transitions. [2022-03-15 13:52:00,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,182 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 2129 transitions. [2022-03-15 13:52:00,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-15 13:52:00,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:00,194 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] [2022-03-15 13:52:00,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 13:52:00,195 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:00,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:00,195 INFO L85 PathProgramCache]: Analyzing trace with hash 298673121, now seen corresponding path program 1 times [2022-03-15 13:52:00,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:00,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875356528] [2022-03-15 13:52:00,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:00,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:00,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:00,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:00,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875356528] [2022-03-15 13:52:00,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875356528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:00,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:00,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:52:00,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957221625] [2022-03-15 13:52:00,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:00,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:52:00,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:00,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:52:00,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:52:00,285 INFO L87 Difference]: Start difference. First operand 814 states and 2129 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:00,323 INFO L93 Difference]: Finished difference Result 1201 states and 3043 transitions. [2022-03-15 13:52:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:52:00,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-15 13:52:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:00,329 INFO L225 Difference]: With dead ends: 1201 [2022-03-15 13:52:00,329 INFO L226 Difference]: Without dead ends: 1100 [2022-03-15 13:52:00,331 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 [2022-03-15 13:52:00,332 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 45 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:00,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 162 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:52:00,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-03-15 13:52:00,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 713. [2022-03-15 13:52:00,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 712 states have (on average 2.6474719101123596) internal successors, (1885), 712 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1885 transitions. [2022-03-15 13:52:00,368 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1885 transitions. Word has length 75 [2022-03-15 13:52:00,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:00,370 INFO L470 AbstractCegarLoop]: Abstraction has 713 states and 1885 transitions. [2022-03-15 13:52:00,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,370 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1885 transitions. [2022-03-15 13:52:00,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-15 13:52:00,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:00,386 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] [2022-03-15 13:52:00,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 13:52:00,387 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:00,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:00,388 INFO L85 PathProgramCache]: Analyzing trace with hash 752097827, now seen corresponding path program 1 times [2022-03-15 13:52:00,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:00,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686950915] [2022-03-15 13:52:00,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:00,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:00,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:00,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:00,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686950915] [2022-03-15 13:52:00,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686950915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:00,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:00,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:52:00,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857002860] [2022-03-15 13:52:00,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:00,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:52:00,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:00,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:52:00,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:52:00,508 INFO L87 Difference]: Start difference. First operand 713 states and 1885 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:00,530 INFO L93 Difference]: Finished difference Result 630 states and 1576 transitions. [2022-03-15 13:52:00,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:52:00,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-15 13:52:00,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:00,533 INFO L225 Difference]: With dead ends: 630 [2022-03-15 13:52:00,533 INFO L226 Difference]: Without dead ends: 630 [2022-03-15 13:52:00,534 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 [2022-03-15 13:52:00,535 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 41 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:00,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 110 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:52:00,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-03-15 13:52:00,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2022-03-15 13:52:00,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 629 states have (on average 2.505564387917329) internal successors, (1576), 629 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 1576 transitions. [2022-03-15 13:52:00,548 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 1576 transitions. Word has length 75 [2022-03-15 13:52:00,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:00,549 INFO L470 AbstractCegarLoop]: Abstraction has 630 states and 1576 transitions. [2022-03-15 13:52:00,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,549 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 1576 transitions. [2022-03-15 13:52:00,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:00,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:00,552 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] [2022-03-15 13:52:00,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 13:52:00,552 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:00,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:00,553 INFO L85 PathProgramCache]: Analyzing trace with hash 792129958, now seen corresponding path program 1 times [2022-03-15 13:52:00,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:00,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275232909] [2022-03-15 13:52:00,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:00,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:00,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:00,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275232909] [2022-03-15 13:52:00,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275232909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:00,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:00,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:00,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539629829] [2022-03-15 13:52:00,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:00,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:00,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:00,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:00,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:00,630 INFO L87 Difference]: Start difference. First operand 630 states and 1576 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:00,670 INFO L93 Difference]: Finished difference Result 1388 states and 3383 transitions. [2022-03-15 13:52:00,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:00,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:00,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:00,675 INFO L225 Difference]: With dead ends: 1388 [2022-03-15 13:52:00,676 INFO L226 Difference]: Without dead ends: 1388 [2022-03-15 13:52:00,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:00,683 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 179 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:00,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 242 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:52:00,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2022-03-15 13:52:00,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 794. [2022-03-15 13:52:00,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 2.4779319041614123) internal successors, (1965), 793 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1965 transitions. [2022-03-15 13:52:00,713 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1965 transitions. Word has length 77 [2022-03-15 13:52:00,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:00,715 INFO L470 AbstractCegarLoop]: Abstraction has 794 states and 1965 transitions. [2022-03-15 13:52:00,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,715 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1965 transitions. [2022-03-15 13:52:00,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:00,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:00,718 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] [2022-03-15 13:52:00,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 13:52:00,718 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:00,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:00,720 INFO L85 PathProgramCache]: Analyzing trace with hash -751864442, now seen corresponding path program 1 times [2022-03-15 13:52:00,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:00,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141506325] [2022-03-15 13:52:00,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:00,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:00,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:00,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:00,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141506325] [2022-03-15 13:52:00,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141506325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:00,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:00,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:00,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538002475] [2022-03-15 13:52:00,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:00,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:00,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:00,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:00,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:00,892 INFO L87 Difference]: Start difference. First operand 794 states and 1965 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:01,174 INFO L93 Difference]: Finished difference Result 1261 states and 3048 transitions. [2022-03-15 13:52:01,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 13:52:01,175 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:01,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:01,179 INFO L225 Difference]: With dead ends: 1261 [2022-03-15 13:52:01,179 INFO L226 Difference]: Without dead ends: 995 [2022-03-15 13:52:01,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-03-15 13:52:01,179 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 179 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:01,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 830 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:01,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2022-03-15 13:52:01,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 726. [2022-03-15 13:52:01,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 725 states have (on average 2.484137931034483) internal successors, (1801), 725 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1801 transitions. [2022-03-15 13:52:01,195 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1801 transitions. Word has length 77 [2022-03-15 13:52:01,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:01,195 INFO L470 AbstractCegarLoop]: Abstraction has 726 states and 1801 transitions. [2022-03-15 13:52:01,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,196 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1801 transitions. [2022-03-15 13:52:01,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:01,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:01,197 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] [2022-03-15 13:52:01,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 13:52:01,198 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:01,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:01,198 INFO L85 PathProgramCache]: Analyzing trace with hash -820574426, now seen corresponding path program 2 times [2022-03-15 13:52:01,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:01,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467526220] [2022-03-15 13:52:01,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:01,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:01,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:01,335 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:01,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467526220] [2022-03-15 13:52:01,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467526220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:01,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:01,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:01,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779411616] [2022-03-15 13:52:01,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:01,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:01,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:01,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:01,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:01,340 INFO L87 Difference]: Start difference. First operand 726 states and 1801 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:01,611 INFO L93 Difference]: Finished difference Result 1106 states and 2734 transitions. [2022-03-15 13:52:01,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:52:01,612 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:01,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:01,615 INFO L225 Difference]: With dead ends: 1106 [2022-03-15 13:52:01,616 INFO L226 Difference]: Without dead ends: 939 [2022-03-15 13:52:01,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-15 13:52:01,616 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 97 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:01,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1111 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:01,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-03-15 13:52:01,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 730. [2022-03-15 13:52:01,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 729 states have (on average 2.4801097393689986) internal successors, (1808), 729 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1808 transitions. [2022-03-15 13:52:01,631 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1808 transitions. Word has length 77 [2022-03-15 13:52:01,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:01,631 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 1808 transitions. [2022-03-15 13:52:01,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,632 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1808 transitions. [2022-03-15 13:52:01,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:01,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:01,633 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] [2022-03-15 13:52:01,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 13:52:01,634 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:01,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:01,634 INFO L85 PathProgramCache]: Analyzing trace with hash -433730370, now seen corresponding path program 3 times [2022-03-15 13:52:01,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:01,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036840731] [2022-03-15 13:52:01,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:01,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:01,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:01,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:01,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036840731] [2022-03-15 13:52:01,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036840731] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:01,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:01,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:01,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104873419] [2022-03-15 13:52:01,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:01,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:01,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:01,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:01,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:01,730 INFO L87 Difference]: Start difference. First operand 730 states and 1808 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:01,884 INFO L93 Difference]: Finished difference Result 1027 states and 2536 transitions. [2022-03-15 13:52:01,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:52:01,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:01,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:01,890 INFO L225 Difference]: With dead ends: 1027 [2022-03-15 13:52:01,891 INFO L226 Difference]: Without dead ends: 886 [2022-03-15 13:52:01,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:01,892 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 71 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:01,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 724 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:01,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-03-15 13:52:01,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 734. [2022-03-15 13:52:01,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 733 states have (on average 2.47612551159618) internal successors, (1815), 733 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1815 transitions. [2022-03-15 13:52:01,908 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1815 transitions. Word has length 77 [2022-03-15 13:52:01,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:01,909 INFO L470 AbstractCegarLoop]: Abstraction has 734 states and 1815 transitions. [2022-03-15 13:52:01,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,909 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1815 transitions. [2022-03-15 13:52:01,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:01,910 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:01,911 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] [2022-03-15 13:52:01,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 13:52:01,911 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:01,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:01,912 INFO L85 PathProgramCache]: Analyzing trace with hash -143760860, now seen corresponding path program 4 times [2022-03-15 13:52:01,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:01,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268408906] [2022-03-15 13:52:01,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:01,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:02,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:02,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:02,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268408906] [2022-03-15 13:52:02,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268408906] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:02,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:02,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:02,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196583601] [2022-03-15 13:52:02,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:02,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:02,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:02,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:02,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:02,020 INFO L87 Difference]: Start difference. First operand 734 states and 1815 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:02,186 INFO L93 Difference]: Finished difference Result 1006 states and 2476 transitions. [2022-03-15 13:52:02,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:02,187 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:02,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:02,190 INFO L225 Difference]: With dead ends: 1006 [2022-03-15 13:52:02,190 INFO L226 Difference]: Without dead ends: 836 [2022-03-15 13:52:02,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:02,191 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 72 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:02,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 756 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:02,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-03-15 13:52:02,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 708. [2022-03-15 13:52:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 707 states have (on average 2.483734087694484) internal successors, (1756), 707 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1756 transitions. [2022-03-15 13:52:02,204 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1756 transitions. Word has length 77 [2022-03-15 13:52:02,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:02,205 INFO L470 AbstractCegarLoop]: Abstraction has 708 states and 1756 transitions. [2022-03-15 13:52:02,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,205 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1756 transitions. [2022-03-15 13:52:02,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:02,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:02,206 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] [2022-03-15 13:52:02,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 13:52:02,207 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:02,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:02,207 INFO L85 PathProgramCache]: Analyzing trace with hash 66532486, now seen corresponding path program 5 times [2022-03-15 13:52:02,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:02,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733658547] [2022-03-15 13:52:02,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:02,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:02,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:02,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733658547] [2022-03-15 13:52:02,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733658547] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:02,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:02,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:02,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861648983] [2022-03-15 13:52:02,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:02,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:02,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:02,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:02,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:02,321 INFO L87 Difference]: Start difference. First operand 708 states and 1756 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:02,505 INFO L93 Difference]: Finished difference Result 1089 states and 2703 transitions. [2022-03-15 13:52:02,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:52:02,506 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:02,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:02,509 INFO L225 Difference]: With dead ends: 1089 [2022-03-15 13:52:02,509 INFO L226 Difference]: Without dead ends: 928 [2022-03-15 13:52:02,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:52:02,511 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 99 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:02,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 736 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:02,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-03-15 13:52:02,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 716. [2022-03-15 13:52:02,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 2.481118881118881) internal successors, (1774), 715 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1774 transitions. [2022-03-15 13:52:02,558 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1774 transitions. Word has length 77 [2022-03-15 13:52:02,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:02,558 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 1774 transitions. [2022-03-15 13:52:02,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,559 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1774 transitions. [2022-03-15 13:52:02,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:02,560 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:02,560 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] [2022-03-15 13:52:02,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 13:52:02,560 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:02,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:02,561 INFO L85 PathProgramCache]: Analyzing trace with hash 399665220, now seen corresponding path program 6 times [2022-03-15 13:52:02,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:02,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731105771] [2022-03-15 13:52:02,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:02,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:02,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:02,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:02,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731105771] [2022-03-15 13:52:02,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731105771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:02,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:02,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:02,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748287727] [2022-03-15 13:52:02,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:02,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:02,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:02,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:02,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:02,674 INFO L87 Difference]: Start difference. First operand 716 states and 1774 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:02,865 INFO L93 Difference]: Finished difference Result 1061 states and 2634 transitions. [2022-03-15 13:52:02,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:02,866 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:02,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:02,869 INFO L225 Difference]: With dead ends: 1061 [2022-03-15 13:52:02,870 INFO L226 Difference]: Without dead ends: 920 [2022-03-15 13:52:02,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:02,871 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 80 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:02,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 732 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:02,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-03-15 13:52:02,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 720. [2022-03-15 13:52:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 719 states have (on average 2.477051460361613) internal successors, (1781), 719 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1781 transitions. [2022-03-15 13:52:02,890 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1781 transitions. Word has length 77 [2022-03-15 13:52:02,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:02,890 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1781 transitions. [2022-03-15 13:52:02,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1781 transitions. [2022-03-15 13:52:02,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:02,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:02,892 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] [2022-03-15 13:52:02,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 13:52:02,892 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:02,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:02,893 INFO L85 PathProgramCache]: Analyzing trace with hash 112344222, now seen corresponding path program 7 times [2022-03-15 13:52:02,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:02,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791140464] [2022-03-15 13:52:02,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:02,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:02,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:02,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:02,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791140464] [2022-03-15 13:52:02,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791140464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:02,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:02,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:02,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316252568] [2022-03-15 13:52:02,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:02,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:02,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:02,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:02,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:02,994 INFO L87 Difference]: Start difference. First operand 720 states and 1781 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:03,175 INFO L93 Difference]: Finished difference Result 1040 states and 2574 transitions. [2022-03-15 13:52:03,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:03,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:03,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:03,179 INFO L225 Difference]: With dead ends: 1040 [2022-03-15 13:52:03,179 INFO L226 Difference]: Without dead ends: 888 [2022-03-15 13:52:03,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:03,180 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 74 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:03,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 1006 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:03,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2022-03-15 13:52:03,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 712. [2022-03-15 13:52:03,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 711 states have (on average 2.479606188466948) internal successors, (1763), 711 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1763 transitions. [2022-03-15 13:52:03,192 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1763 transitions. Word has length 77 [2022-03-15 13:52:03,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:03,193 INFO L470 AbstractCegarLoop]: Abstraction has 712 states and 1763 transitions. [2022-03-15 13:52:03,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,193 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1763 transitions. [2022-03-15 13:52:03,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:03,195 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:03,195 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] [2022-03-15 13:52:03,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 13:52:03,195 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:03,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:03,196 INFO L85 PathProgramCache]: Analyzing trace with hash 293076268, now seen corresponding path program 8 times [2022-03-15 13:52:03,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:03,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88440173] [2022-03-15 13:52:03,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:03,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:03,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:03,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:03,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88440173] [2022-03-15 13:52:03,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88440173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:03,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:03,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:03,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863081922] [2022-03-15 13:52:03,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:03,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:03,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:03,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:03,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:03,280 INFO L87 Difference]: Start difference. First operand 712 states and 1763 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:03,494 INFO L93 Difference]: Finished difference Result 1092 states and 2696 transitions. [2022-03-15 13:52:03,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:52:03,494 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:03,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:03,498 INFO L225 Difference]: With dead ends: 1092 [2022-03-15 13:52:03,498 INFO L226 Difference]: Without dead ends: 925 [2022-03-15 13:52:03,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:52:03,499 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 108 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:03,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 928 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:03,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-03-15 13:52:03,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 716. [2022-03-15 13:52:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 2.4755244755244754) internal successors, (1770), 715 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1770 transitions. [2022-03-15 13:52:03,512 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1770 transitions. Word has length 77 [2022-03-15 13:52:03,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:03,512 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 1770 transitions. [2022-03-15 13:52:03,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,513 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1770 transitions. [2022-03-15 13:52:03,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:03,514 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:03,514 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] [2022-03-15 13:52:03,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 13:52:03,514 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:03,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:03,515 INFO L85 PathProgramCache]: Analyzing trace with hash -404693356, now seen corresponding path program 9 times [2022-03-15 13:52:03,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:03,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598810416] [2022-03-15 13:52:03,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:03,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:03,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:03,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:03,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598810416] [2022-03-15 13:52:03,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598810416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:03,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:03,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:03,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893726814] [2022-03-15 13:52:03,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:03,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:03,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:03,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:03,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:03,599 INFO L87 Difference]: Start difference. First operand 716 states and 1770 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:03,827 INFO L93 Difference]: Finished difference Result 1025 states and 2531 transitions. [2022-03-15 13:52:03,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:03,827 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:03,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:03,831 INFO L225 Difference]: With dead ends: 1025 [2022-03-15 13:52:03,831 INFO L226 Difference]: Without dead ends: 884 [2022-03-15 13:52:03,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:03,831 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 78 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:03,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 896 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:03,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-03-15 13:52:03,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 720. [2022-03-15 13:52:03,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 719 states have (on average 2.4714881780250346) internal successors, (1777), 719 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1777 transitions. [2022-03-15 13:52:03,847 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1777 transitions. Word has length 77 [2022-03-15 13:52:03,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:03,847 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1777 transitions. [2022-03-15 13:52:03,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,847 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1777 transitions. [2022-03-15 13:52:03,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:03,849 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:03,849 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] [2022-03-15 13:52:03,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 13:52:03,849 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:03,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:03,849 INFO L85 PathProgramCache]: Analyzing trace with hash -692014354, now seen corresponding path program 10 times [2022-03-15 13:52:03,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:03,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205368644] [2022-03-15 13:52:03,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:03,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:03,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:03,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:03,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205368644] [2022-03-15 13:52:03,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205368644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:03,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:03,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:03,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113490991] [2022-03-15 13:52:03,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:03,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:03,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:03,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:03,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:03,946 INFO L87 Difference]: Start difference. First operand 720 states and 1777 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:04,119 INFO L93 Difference]: Finished difference Result 992 states and 2438 transitions. [2022-03-15 13:52:04,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:04,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:04,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:04,122 INFO L225 Difference]: With dead ends: 992 [2022-03-15 13:52:04,123 INFO L226 Difference]: Without dead ends: 818 [2022-03-15 13:52:04,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:04,123 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 78 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:04,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 877 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:04,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-03-15 13:52:04,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 690. [2022-03-15 13:52:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 689 states have (on average 2.483309143686502) internal successors, (1711), 689 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1711 transitions. [2022-03-15 13:52:04,135 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1711 transitions. Word has length 77 [2022-03-15 13:52:04,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:04,135 INFO L470 AbstractCegarLoop]: Abstraction has 690 states and 1711 transitions. [2022-03-15 13:52:04,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,136 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1711 transitions. [2022-03-15 13:52:04,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:04,137 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:04,137 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] [2022-03-15 13:52:04,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 13:52:04,137 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:04,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:04,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1484822272, now seen corresponding path program 11 times [2022-03-15 13:52:04,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:04,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819109431] [2022-03-15 13:52:04,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:04,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:04,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:04,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:04,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819109431] [2022-03-15 13:52:04,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819109431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:04,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:04,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:04,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211868577] [2022-03-15 13:52:04,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:04,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:04,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:04,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:04,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:04,212 INFO L87 Difference]: Start difference. First operand 690 states and 1711 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:04,466 INFO L93 Difference]: Finished difference Result 1173 states and 2871 transitions. [2022-03-15 13:52:04,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 13:52:04,466 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:04,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:04,470 INFO L225 Difference]: With dead ends: 1173 [2022-03-15 13:52:04,470 INFO L226 Difference]: Without dead ends: 952 [2022-03-15 13:52:04,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:52:04,470 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 203 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:04,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 991 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:04,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-03-15 13:52:04,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 686. [2022-03-15 13:52:04,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 2.4817518248175183) internal successors, (1700), 685 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1700 transitions. [2022-03-15 13:52:04,483 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1700 transitions. Word has length 77 [2022-03-15 13:52:04,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:04,483 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 1700 transitions. [2022-03-15 13:52:04,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1700 transitions. [2022-03-15 13:52:04,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:04,485 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:04,485 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] [2022-03-15 13:52:04,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 13:52:04,485 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:04,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:04,485 INFO L85 PathProgramCache]: Analyzing trace with hash -279802202, now seen corresponding path program 12 times [2022-03-15 13:52:04,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:04,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639880748] [2022-03-15 13:52:04,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:04,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:04,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:04,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639880748] [2022-03-15 13:52:04,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639880748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:04,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:04,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:04,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359806824] [2022-03-15 13:52:04,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:04,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:04,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:04,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:04,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:04,572 INFO L87 Difference]: Start difference. First operand 686 states and 1700 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:04,756 INFO L93 Difference]: Finished difference Result 1063 states and 2627 transitions. [2022-03-15 13:52:04,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:52:04,756 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:04,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:04,759 INFO L225 Difference]: With dead ends: 1063 [2022-03-15 13:52:04,760 INFO L226 Difference]: Without dead ends: 902 [2022-03-15 13:52:04,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-15 13:52:04,760 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 121 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:04,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 737 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:04,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-03-15 13:52:04,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 690. [2022-03-15 13:52:04,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 689 states have (on average 2.4775036284470247) internal successors, (1707), 689 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1707 transitions. [2022-03-15 13:52:04,773 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1707 transitions. Word has length 77 [2022-03-15 13:52:04,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:04,773 INFO L470 AbstractCegarLoop]: Abstraction has 690 states and 1707 transitions. [2022-03-15 13:52:04,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,773 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1707 transitions. [2022-03-15 13:52:04,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:04,774 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:04,774 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] [2022-03-15 13:52:04,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 13:52:04,775 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:04,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:04,775 INFO L85 PathProgramCache]: Analyzing trace with hash 53330532, now seen corresponding path program 13 times [2022-03-15 13:52:04,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:04,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051064413] [2022-03-15 13:52:04,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:04,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:04,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:04,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051064413] [2022-03-15 13:52:04,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051064413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:04,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:04,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:04,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144284477] [2022-03-15 13:52:04,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:04,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:04,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:04,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:04,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:04,845 INFO L87 Difference]: Start difference. First operand 690 states and 1707 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:05,013 INFO L93 Difference]: Finished difference Result 1007 states and 2481 transitions. [2022-03-15 13:52:05,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:05,013 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:05,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:05,016 INFO L225 Difference]: With dead ends: 1007 [2022-03-15 13:52:05,016 INFO L226 Difference]: Without dead ends: 866 [2022-03-15 13:52:05,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:05,017 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 91 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:05,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 738 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-03-15 13:52:05,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 694. [2022-03-15 13:52:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 693 states have (on average 2.473304473304473) internal successors, (1714), 693 states have internal predecessors, (1714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1714 transitions. [2022-03-15 13:52:05,028 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1714 transitions. Word has length 77 [2022-03-15 13:52:05,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:05,028 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1714 transitions. [2022-03-15 13:52:05,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,028 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1714 transitions. [2022-03-15 13:52:05,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:05,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:05,030 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] [2022-03-15 13:52:05,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 13:52:05,030 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:05,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:05,030 INFO L85 PathProgramCache]: Analyzing trace with hash -233990466, now seen corresponding path program 14 times [2022-03-15 13:52:05,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:05,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010746857] [2022-03-15 13:52:05,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:05,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:05,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:05,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010746857] [2022-03-15 13:52:05,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010746857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:05,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:05,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:05,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995421759] [2022-03-15 13:52:05,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:05,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:05,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:05,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:05,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:05,116 INFO L87 Difference]: Start difference. First operand 694 states and 1714 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:05,261 INFO L93 Difference]: Finished difference Result 978 states and 2399 transitions. [2022-03-15 13:52:05,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:52:05,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:05,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:05,264 INFO L225 Difference]: With dead ends: 978 [2022-03-15 13:52:05,264 INFO L226 Difference]: Without dead ends: 814 [2022-03-15 13:52:05,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:05,265 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 89 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:05,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 521 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:52:05,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-03-15 13:52:05,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 674. [2022-03-15 13:52:05,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 673 states have (on average 2.471025260029718) internal successors, (1663), 673 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 1663 transitions. [2022-03-15 13:52:05,276 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 1663 transitions. Word has length 77 [2022-03-15 13:52:05,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:05,276 INFO L470 AbstractCegarLoop]: Abstraction has 674 states and 1663 transitions. [2022-03-15 13:52:05,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,276 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 1663 transitions. [2022-03-15 13:52:05,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:05,278 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:05,278 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] [2022-03-15 13:52:05,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 13:52:05,278 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:05,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:05,278 INFO L85 PathProgramCache]: Analyzing trace with hash 226686150, now seen corresponding path program 15 times [2022-03-15 13:52:05,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:05,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635006092] [2022-03-15 13:52:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:05,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:05,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:05,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635006092] [2022-03-15 13:52:05,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635006092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:05,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:05,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:05,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297753200] [2022-03-15 13:52:05,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:05,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:05,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:05,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:05,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:05,368 INFO L87 Difference]: Start difference. First operand 674 states and 1663 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:05,587 INFO L93 Difference]: Finished difference Result 1067 states and 2634 transitions. [2022-03-15 13:52:05,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:52:05,587 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:05,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:05,590 INFO L225 Difference]: With dead ends: 1067 [2022-03-15 13:52:05,590 INFO L226 Difference]: Without dead ends: 906 [2022-03-15 13:52:05,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:52:05,591 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 108 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:05,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 899 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:05,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-03-15 13:52:05,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 682. [2022-03-15 13:52:05,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 2.4684287812041115) internal successors, (1681), 681 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1681 transitions. [2022-03-15 13:52:05,603 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1681 transitions. Word has length 77 [2022-03-15 13:52:05,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:05,603 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 1681 transitions. [2022-03-15 13:52:05,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,603 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1681 transitions. [2022-03-15 13:52:05,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:05,604 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:05,604 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] [2022-03-15 13:52:05,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 13:52:05,604 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:05,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:05,605 INFO L85 PathProgramCache]: Analyzing trace with hash 559818884, now seen corresponding path program 16 times [2022-03-15 13:52:05,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:05,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547709471] [2022-03-15 13:52:05,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:05,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:05,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:05,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:05,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547709471] [2022-03-15 13:52:05,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547709471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:05,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:05,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:05,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842638084] [2022-03-15 13:52:05,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:05,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:05,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:05,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:05,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:05,686 INFO L87 Difference]: Start difference. First operand 682 states and 1681 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:05,854 INFO L93 Difference]: Finished difference Result 1039 states and 2565 transitions. [2022-03-15 13:52:05,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:05,854 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:05,857 INFO L225 Difference]: With dead ends: 1039 [2022-03-15 13:52:05,857 INFO L226 Difference]: Without dead ends: 898 [2022-03-15 13:52:05,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:05,858 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 90 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:05,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 779 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:05,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-03-15 13:52:05,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 686. [2022-03-15 13:52:05,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 2.4642335766423358) internal successors, (1688), 685 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1688 transitions. [2022-03-15 13:52:05,869 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1688 transitions. Word has length 77 [2022-03-15 13:52:05,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:05,869 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 1688 transitions. [2022-03-15 13:52:05,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,869 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1688 transitions. [2022-03-15 13:52:05,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:05,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:05,871 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] [2022-03-15 13:52:05,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 13:52:05,871 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:05,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:05,871 INFO L85 PathProgramCache]: Analyzing trace with hash 272497886, now seen corresponding path program 17 times [2022-03-15 13:52:05,871 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:05,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698169137] [2022-03-15 13:52:05,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:05,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:05,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:05,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698169137] [2022-03-15 13:52:05,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698169137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:05,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:05,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:05,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700804857] [2022-03-15 13:52:05,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:05,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:05,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:05,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:05,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:05,949 INFO L87 Difference]: Start difference. First operand 686 states and 1688 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:06,108 INFO L93 Difference]: Finished difference Result 1018 states and 2505 transitions. [2022-03-15 13:52:06,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:06,109 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:06,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:06,111 INFO L225 Difference]: With dead ends: 1018 [2022-03-15 13:52:06,111 INFO L226 Difference]: Without dead ends: 866 [2022-03-15 13:52:06,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:06,112 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 76 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:06,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 698 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:06,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-03-15 13:52:06,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 678. [2022-03-15 13:52:06,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 677 states have (on average 2.466765140324963) internal successors, (1670), 677 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 1670 transitions. [2022-03-15 13:52:06,123 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 1670 transitions. Word has length 77 [2022-03-15 13:52:06,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:06,123 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 1670 transitions. [2022-03-15 13:52:06,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,124 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 1670 transitions. [2022-03-15 13:52:06,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:06,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:06,125 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] [2022-03-15 13:52:06,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 13:52:06,125 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:06,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:06,125 INFO L85 PathProgramCache]: Analyzing trace with hash 453229932, now seen corresponding path program 18 times [2022-03-15 13:52:06,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:06,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741282913] [2022-03-15 13:52:06,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:06,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:06,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:06,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:06,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741282913] [2022-03-15 13:52:06,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741282913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:06,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:06,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:06,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342161932] [2022-03-15 13:52:06,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:06,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:06,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:06,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:06,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:06,221 INFO L87 Difference]: Start difference. First operand 678 states and 1670 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:06,406 INFO L93 Difference]: Finished difference Result 1070 states and 2627 transitions. [2022-03-15 13:52:06,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:52:06,406 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:06,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:06,408 INFO L225 Difference]: With dead ends: 1070 [2022-03-15 13:52:06,408 INFO L226 Difference]: Without dead ends: 903 [2022-03-15 13:52:06,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:52:06,409 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 113 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:06,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 640 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:06,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-03-15 13:52:06,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 682. [2022-03-15 13:52:06,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 2.462555066079295) internal successors, (1677), 681 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1677 transitions. [2022-03-15 13:52:06,420 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1677 transitions. Word has length 77 [2022-03-15 13:52:06,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:06,421 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 1677 transitions. [2022-03-15 13:52:06,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,421 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1677 transitions. [2022-03-15 13:52:06,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:06,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:06,422 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] [2022-03-15 13:52:06,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 13:52:06,422 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:06,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:06,423 INFO L85 PathProgramCache]: Analyzing trace with hash -244539692, now seen corresponding path program 19 times [2022-03-15 13:52:06,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:06,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812559733] [2022-03-15 13:52:06,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:06,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:06,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:06,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:06,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812559733] [2022-03-15 13:52:06,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812559733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:06,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:06,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:06,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713399180] [2022-03-15 13:52:06,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:06,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:06,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:06,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:06,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:06,506 INFO L87 Difference]: Start difference. First operand 682 states and 1677 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:06,687 INFO L93 Difference]: Finished difference Result 1003 states and 2462 transitions. [2022-03-15 13:52:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:06,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:06,690 INFO L225 Difference]: With dead ends: 1003 [2022-03-15 13:52:06,690 INFO L226 Difference]: Without dead ends: 862 [2022-03-15 13:52:06,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-15 13:52:06,690 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 84 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:06,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 957 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:06,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2022-03-15 13:52:06,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 686. [2022-03-15 13:52:06,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 2.4583941605839414) internal successors, (1684), 685 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1684 transitions. [2022-03-15 13:52:06,704 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1684 transitions. Word has length 77 [2022-03-15 13:52:06,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:06,704 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 1684 transitions. [2022-03-15 13:52:06,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,704 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1684 transitions. [2022-03-15 13:52:06,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:06,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:06,706 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] [2022-03-15 13:52:06,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 13:52:06,706 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:06,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:06,706 INFO L85 PathProgramCache]: Analyzing trace with hash -531860690, now seen corresponding path program 20 times [2022-03-15 13:52:06,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:06,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009065082] [2022-03-15 13:52:06,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:06,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:06,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:06,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:06,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009065082] [2022-03-15 13:52:06,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009065082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:06,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:06,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:06,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407081193] [2022-03-15 13:52:06,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:06,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:06,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:06,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:06,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:06,799 INFO L87 Difference]: Start difference. First operand 686 states and 1684 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:06,953 INFO L93 Difference]: Finished difference Result 970 states and 2369 transitions. [2022-03-15 13:52:06,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:06,953 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:06,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:06,955 INFO L225 Difference]: With dead ends: 970 [2022-03-15 13:52:06,955 INFO L226 Difference]: Without dead ends: 776 [2022-03-15 13:52:06,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:06,956 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 76 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:06,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 855 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:06,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-03-15 13:52:06,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 636. [2022-03-15 13:52:06,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 635 states have (on average 2.467716535433071) internal successors, (1567), 635 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1567 transitions. [2022-03-15 13:52:06,965 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1567 transitions. Word has length 77 [2022-03-15 13:52:06,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:06,965 INFO L470 AbstractCegarLoop]: Abstraction has 636 states and 1567 transitions. [2022-03-15 13:52:06,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,965 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1567 transitions. [2022-03-15 13:52:06,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:06,966 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:06,966 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] [2022-03-15 13:52:06,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 13:52:06,966 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:06,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:06,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1649383172, now seen corresponding path program 1 times [2022-03-15 13:52:06,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:06,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124459176] [2022-03-15 13:52:06,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:06,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:07,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:07,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124459176] [2022-03-15 13:52:07,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124459176] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:07,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:07,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:07,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702866505] [2022-03-15 13:52:07,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:07,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:07,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:07,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:07,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:07,040 INFO L87 Difference]: Start difference. First operand 636 states and 1567 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:07,289 INFO L93 Difference]: Finished difference Result 1078 states and 2577 transitions. [2022-03-15 13:52:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 13:52:07,290 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:07,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:07,291 INFO L225 Difference]: With dead ends: 1078 [2022-03-15 13:52:07,291 INFO L226 Difference]: Without dead ends: 882 [2022-03-15 13:52:07,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:52:07,292 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 202 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:07,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 1027 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:07,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-03-15 13:52:07,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 644. [2022-03-15 13:52:07,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 643 states have (on average 2.4292379471228616) internal successors, (1562), 643 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1562 transitions. [2022-03-15 13:52:07,302 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1562 transitions. Word has length 77 [2022-03-15 13:52:07,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:07,302 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 1562 transitions. [2022-03-15 13:52:07,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,302 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1562 transitions. [2022-03-15 13:52:07,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:07,303 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:07,303 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] [2022-03-15 13:52:07,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 13:52:07,304 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:07,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:07,304 INFO L85 PathProgramCache]: Analyzing trace with hash 105388772, now seen corresponding path program 1 times [2022-03-15 13:52:07,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:07,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970645318] [2022-03-15 13:52:07,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:07,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:07,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:07,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970645318] [2022-03-15 13:52:07,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970645318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:07,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:07,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:07,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736777402] [2022-03-15 13:52:07,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:07,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:07,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:07,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:07,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:07,359 INFO L87 Difference]: Start difference. First operand 644 states and 1562 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:07,394 INFO L93 Difference]: Finished difference Result 914 states and 2154 transitions. [2022-03-15 13:52:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:07,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:07,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:07,396 INFO L225 Difference]: With dead ends: 914 [2022-03-15 13:52:07,396 INFO L226 Difference]: Without dead ends: 838 [2022-03-15 13:52:07,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:07,397 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 212 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:07,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 182 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:52:07,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-03-15 13:52:07,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 572. [2022-03-15 13:52:07,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 571 states have (on average 2.415061295971979) internal successors, (1379), 571 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 1379 transitions. [2022-03-15 13:52:07,405 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 1379 transitions. Word has length 77 [2022-03-15 13:52:07,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:07,405 INFO L470 AbstractCegarLoop]: Abstraction has 572 states and 1379 transitions. [2022-03-15 13:52:07,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,406 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 1379 transitions. [2022-03-15 13:52:07,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:07,407 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:07,407 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] [2022-03-15 13:52:07,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 13:52:07,407 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:07,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:07,407 INFO L85 PathProgramCache]: Analyzing trace with hash -502217628, now seen corresponding path program 2 times [2022-03-15 13:52:07,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:07,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214109024] [2022-03-15 13:52:07,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:07,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:07,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:07,487 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:07,487 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214109024] [2022-03-15 13:52:07,487 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214109024] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:07,487 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:07,487 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:07,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654675642] [2022-03-15 13:52:07,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:07,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:07,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:07,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:07,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:07,488 INFO L87 Difference]: Start difference. First operand 572 states and 1379 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:07,709 INFO L93 Difference]: Finished difference Result 942 states and 2274 transitions. [2022-03-15 13:52:07,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:52:07,709 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:07,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:07,711 INFO L225 Difference]: With dead ends: 942 [2022-03-15 13:52:07,711 INFO L226 Difference]: Without dead ends: 769 [2022-03-15 13:52:07,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-15 13:52:07,712 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 102 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:07,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 884 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:07,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2022-03-15 13:52:07,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 576. [2022-03-15 13:52:07,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 2.4104347826086956) internal successors, (1386), 575 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 1386 transitions. [2022-03-15 13:52:07,721 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 1386 transitions. Word has length 77 [2022-03-15 13:52:07,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:07,721 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 1386 transitions. [2022-03-15 13:52:07,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,721 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 1386 transitions. [2022-03-15 13:52:07,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:07,722 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:07,722 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] [2022-03-15 13:52:07,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 13:52:07,722 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:07,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:07,723 INFO L85 PathProgramCache]: Analyzing trace with hash -115373572, now seen corresponding path program 3 times [2022-03-15 13:52:07,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:07,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141509208] [2022-03-15 13:52:07,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:07,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:07,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:07,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:07,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141509208] [2022-03-15 13:52:07,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141509208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:07,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:07,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:07,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865784091] [2022-03-15 13:52:07,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:07,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:07,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:07,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:07,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:07,797 INFO L87 Difference]: Start difference. First operand 576 states and 1386 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:07,954 INFO L93 Difference]: Finished difference Result 863 states and 2076 transitions. [2022-03-15 13:52:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:52:07,954 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:07,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:07,956 INFO L225 Difference]: With dead ends: 863 [2022-03-15 13:52:07,956 INFO L226 Difference]: Without dead ends: 716 [2022-03-15 13:52:07,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:07,957 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 74 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:07,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 834 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:07,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-03-15 13:52:07,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 580. [2022-03-15 13:52:07,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 579 states have (on average 2.4058721934369602) internal successors, (1393), 579 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1393 transitions. [2022-03-15 13:52:07,965 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1393 transitions. Word has length 77 [2022-03-15 13:52:07,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:07,965 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 1393 transitions. [2022-03-15 13:52:07,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,965 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1393 transitions. [2022-03-15 13:52:07,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:07,966 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:07,966 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] [2022-03-15 13:52:07,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 13:52:07,966 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:07,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:07,967 INFO L85 PathProgramCache]: Analyzing trace with hash 174595938, now seen corresponding path program 4 times [2022-03-15 13:52:07,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:07,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319694714] [2022-03-15 13:52:07,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:07,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:08,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:08,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:08,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319694714] [2022-03-15 13:52:08,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319694714] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:08,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:08,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:08,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565114889] [2022-03-15 13:52:08,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:08,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:08,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:08,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:08,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:08,046 INFO L87 Difference]: Start difference. First operand 580 states and 1393 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:08,241 INFO L93 Difference]: Finished difference Result 842 states and 2016 transitions. [2022-03-15 13:52:08,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:08,241 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:08,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:08,242 INFO L225 Difference]: With dead ends: 842 [2022-03-15 13:52:08,242 INFO L226 Difference]: Without dead ends: 666 [2022-03-15 13:52:08,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:08,243 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 71 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:08,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 1066 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:08,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-03-15 13:52:08,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 554. [2022-03-15 13:52:08,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 553 states have (on average 2.4122965641952985) internal successors, (1334), 553 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1334 transitions. [2022-03-15 13:52:08,251 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1334 transitions. Word has length 77 [2022-03-15 13:52:08,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:08,251 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 1334 transitions. [2022-03-15 13:52:08,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,252 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1334 transitions. [2022-03-15 13:52:08,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:08,252 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:08,253 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] [2022-03-15 13:52:08,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 13:52:08,253 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:08,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:08,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1397865988, now seen corresponding path program 5 times [2022-03-15 13:52:08,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:08,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629968807] [2022-03-15 13:52:08,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:08,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:08,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:08,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:08,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629968807] [2022-03-15 13:52:08,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629968807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:08,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:08,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:08,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837267378] [2022-03-15 13:52:08,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:08,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:08,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:08,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:08,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:08,327 INFO L87 Difference]: Start difference. First operand 554 states and 1334 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:08,521 INFO L93 Difference]: Finished difference Result 925 states and 2243 transitions. [2022-03-15 13:52:08,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:52:08,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:08,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:08,523 INFO L225 Difference]: With dead ends: 925 [2022-03-15 13:52:08,523 INFO L226 Difference]: Without dead ends: 758 [2022-03-15 13:52:08,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:52:08,524 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 100 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:08,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 824 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:08,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-03-15 13:52:08,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 562. [2022-03-15 13:52:08,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 561 states have (on average 2.409982174688057) internal successors, (1352), 561 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1352 transitions. [2022-03-15 13:52:08,532 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1352 transitions. Word has length 77 [2022-03-15 13:52:08,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:08,533 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 1352 transitions. [2022-03-15 13:52:08,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,533 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1352 transitions. [2022-03-15 13:52:08,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:08,534 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:08,534 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] [2022-03-15 13:52:08,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 13:52:08,534 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:08,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:08,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1730998722, now seen corresponding path program 6 times [2022-03-15 13:52:08,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:08,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408223551] [2022-03-15 13:52:08,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:08,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:08,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:08,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:08,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408223551] [2022-03-15 13:52:08,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408223551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:08,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:08,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:08,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286845396] [2022-03-15 13:52:08,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:08,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:08,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:08,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:08,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:08,633 INFO L87 Difference]: Start difference. First operand 562 states and 1352 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:08,848 INFO L93 Difference]: Finished difference Result 897 states and 2174 transitions. [2022-03-15 13:52:08,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:08,848 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:08,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:08,850 INFO L225 Difference]: With dead ends: 897 [2022-03-15 13:52:08,850 INFO L226 Difference]: Without dead ends: 750 [2022-03-15 13:52:08,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:08,850 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 79 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:08,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 974 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:08,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-03-15 13:52:08,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 566. [2022-03-15 13:52:08,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 565 states have (on average 2.405309734513274) internal successors, (1359), 565 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1359 transitions. [2022-03-15 13:52:08,859 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 1359 transitions. Word has length 77 [2022-03-15 13:52:08,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:08,859 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 1359 transitions. [2022-03-15 13:52:08,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,859 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 1359 transitions. [2022-03-15 13:52:08,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:08,860 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:08,860 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] [2022-03-15 13:52:08,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 13:52:08,860 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:08,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:08,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1443677724, now seen corresponding path program 7 times [2022-03-15 13:52:08,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:08,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024794970] [2022-03-15 13:52:08,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:08,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:08,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:08,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:08,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024794970] [2022-03-15 13:52:08,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024794970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:08,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:08,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:08,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197807817] [2022-03-15 13:52:08,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:08,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:08,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:08,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:08,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:08,937 INFO L87 Difference]: Start difference. First operand 566 states and 1359 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:09,112 INFO L93 Difference]: Finished difference Result 876 states and 2114 transitions. [2022-03-15 13:52:09,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:09,112 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:09,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:09,114 INFO L225 Difference]: With dead ends: 876 [2022-03-15 13:52:09,114 INFO L226 Difference]: Without dead ends: 718 [2022-03-15 13:52:09,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-15 13:52:09,114 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 75 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:09,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 819 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:09,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-03-15 13:52:09,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 558. [2022-03-15 13:52:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 557 states have (on average 2.40754039497307) internal successors, (1341), 557 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1341 transitions. [2022-03-15 13:52:09,123 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1341 transitions. Word has length 77 [2022-03-15 13:52:09,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:09,123 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 1341 transitions. [2022-03-15 13:52:09,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,123 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1341 transitions. [2022-03-15 13:52:09,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:09,124 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:09,124 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] [2022-03-15 13:52:09,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 13:52:09,124 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:09,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:09,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1624409770, now seen corresponding path program 8 times [2022-03-15 13:52:09,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:09,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42267357] [2022-03-15 13:52:09,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:09,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:09,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:09,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:09,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42267357] [2022-03-15 13:52:09,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42267357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:09,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:09,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:09,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358302776] [2022-03-15 13:52:09,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:09,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:09,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:09,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:09,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:09,215 INFO L87 Difference]: Start difference. First operand 558 states and 1341 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:09,417 INFO L93 Difference]: Finished difference Result 928 states and 2236 transitions. [2022-03-15 13:52:09,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:52:09,417 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:09,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:09,419 INFO L225 Difference]: With dead ends: 928 [2022-03-15 13:52:09,419 INFO L226 Difference]: Without dead ends: 755 [2022-03-15 13:52:09,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:52:09,420 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 110 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:09,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 820 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:09,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2022-03-15 13:52:09,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 562. [2022-03-15 13:52:09,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 561 states have (on average 2.4028520499108734) internal successors, (1348), 561 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1348 transitions. [2022-03-15 13:52:09,427 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1348 transitions. Word has length 77 [2022-03-15 13:52:09,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:09,427 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 1348 transitions. [2022-03-15 13:52:09,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,427 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1348 transitions. [2022-03-15 13:52:09,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:09,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:09,428 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] [2022-03-15 13:52:09,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 13:52:09,429 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:09,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:09,429 INFO L85 PathProgramCache]: Analyzing trace with hash 926640146, now seen corresponding path program 9 times [2022-03-15 13:52:09,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:09,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842728936] [2022-03-15 13:52:09,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:09,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:09,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:09,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:09,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842728936] [2022-03-15 13:52:09,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842728936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:09,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:09,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:09,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734654905] [2022-03-15 13:52:09,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:09,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:09,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:09,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:09,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:09,517 INFO L87 Difference]: Start difference. First operand 562 states and 1348 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:09,685 INFO L93 Difference]: Finished difference Result 861 states and 2071 transitions. [2022-03-15 13:52:09,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:09,685 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:09,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:09,687 INFO L225 Difference]: With dead ends: 861 [2022-03-15 13:52:09,687 INFO L226 Difference]: Without dead ends: 714 [2022-03-15 13:52:09,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:09,688 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 79 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:09,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 700 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:09,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-03-15 13:52:09,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 566. [2022-03-15 13:52:09,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 565 states have (on average 2.398230088495575) internal successors, (1355), 565 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1355 transitions. [2022-03-15 13:52:09,695 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 1355 transitions. Word has length 77 [2022-03-15 13:52:09,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:09,695 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 1355 transitions. [2022-03-15 13:52:09,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,695 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 1355 transitions. [2022-03-15 13:52:09,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:09,696 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:09,696 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] [2022-03-15 13:52:09,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 13:52:09,697 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:09,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:09,697 INFO L85 PathProgramCache]: Analyzing trace with hash 639319148, now seen corresponding path program 10 times [2022-03-15 13:52:09,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:09,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693715308] [2022-03-15 13:52:09,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:09,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:09,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:09,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693715308] [2022-03-15 13:52:09,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693715308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:09,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:09,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:09,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443477476] [2022-03-15 13:52:09,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:09,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:09,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:09,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:09,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:09,793 INFO L87 Difference]: Start difference. First operand 566 states and 1355 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:09,960 INFO L93 Difference]: Finished difference Result 828 states and 1978 transitions. [2022-03-15 13:52:09,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:09,961 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:09,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:09,962 INFO L225 Difference]: With dead ends: 828 [2022-03-15 13:52:09,962 INFO L226 Difference]: Without dead ends: 648 [2022-03-15 13:52:09,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:09,966 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 79 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:09,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 701 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:09,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2022-03-15 13:52:09,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 536. [2022-03-15 13:52:09,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 535 states have (on average 2.4093457943925234) internal successors, (1289), 535 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1289 transitions. [2022-03-15 13:52:10,002 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1289 transitions. Word has length 77 [2022-03-15 13:52:10,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:10,002 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1289 transitions. [2022-03-15 13:52:10,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,003 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1289 transitions. [2022-03-15 13:52:10,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:10,004 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:10,004 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] [2022-03-15 13:52:10,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 13:52:10,004 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:10,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:10,004 INFO L85 PathProgramCache]: Analyzing trace with hash 300788800, now seen corresponding path program 11 times [2022-03-15 13:52:10,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:10,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293647589] [2022-03-15 13:52:10,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:10,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:10,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:10,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:10,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293647589] [2022-03-15 13:52:10,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293647589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:10,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:10,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:10,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403703511] [2022-03-15 13:52:10,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:10,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:10,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:10,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:10,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:10,082 INFO L87 Difference]: Start difference. First operand 536 states and 1289 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:10,286 INFO L93 Difference]: Finished difference Result 997 states and 2354 transitions. [2022-03-15 13:52:10,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 13:52:10,286 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:10,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:10,288 INFO L225 Difference]: With dead ends: 997 [2022-03-15 13:52:10,288 INFO L226 Difference]: Without dead ends: 770 [2022-03-15 13:52:10,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:52:10,288 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 216 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:10,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 770 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:10,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-03-15 13:52:10,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 532. [2022-03-15 13:52:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 2.354048964218456) internal successors, (1250), 531 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1250 transitions. [2022-03-15 13:52:10,296 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 1250 transitions. Word has length 77 [2022-03-15 13:52:10,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:10,296 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 1250 transitions. [2022-03-15 13:52:10,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,297 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 1250 transitions. [2022-03-15 13:52:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:10,297 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:10,297 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] [2022-03-15 13:52:10,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 13:52:10,298 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:10,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:10,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1578682278, now seen corresponding path program 12 times [2022-03-15 13:52:10,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:10,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007806585] [2022-03-15 13:52:10,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:10,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:10,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:10,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007806585] [2022-03-15 13:52:10,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007806585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:10,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:10,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:10,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308397783] [2022-03-15 13:52:10,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:10,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:10,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:10,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:10,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:10,368 INFO L87 Difference]: Start difference. First operand 532 states and 1250 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:10,575 INFO L93 Difference]: Finished difference Result 899 states and 2139 transitions. [2022-03-15 13:52:10,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:52:10,575 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:10,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:10,577 INFO L225 Difference]: With dead ends: 899 [2022-03-15 13:52:10,577 INFO L226 Difference]: Without dead ends: 732 [2022-03-15 13:52:10,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-03-15 13:52:10,578 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 121 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:10,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 934 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:10,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-03-15 13:52:10,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 536. [2022-03-15 13:52:10,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 535 states have (on average 2.349532710280374) internal successors, (1257), 535 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1257 transitions. [2022-03-15 13:52:10,585 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1257 transitions. Word has length 77 [2022-03-15 13:52:10,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:10,585 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1257 transitions. [2022-03-15 13:52:10,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,586 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1257 transitions. [2022-03-15 13:52:10,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:10,586 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:10,586 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] [2022-03-15 13:52:10,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 13:52:10,587 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:10,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:10,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1911815012, now seen corresponding path program 13 times [2022-03-15 13:52:10,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:10,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452156687] [2022-03-15 13:52:10,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:10,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:10,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:10,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:10,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452156687] [2022-03-15 13:52:10,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452156687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:10,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:10,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:10,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254475799] [2022-03-15 13:52:10,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:10,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:10,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:10,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:10,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:10,659 INFO L87 Difference]: Start difference. First operand 536 states and 1257 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:10,807 INFO L93 Difference]: Finished difference Result 843 states and 1993 transitions. [2022-03-15 13:52:10,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:10,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:10,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:10,809 INFO L225 Difference]: With dead ends: 843 [2022-03-15 13:52:10,809 INFO L226 Difference]: Without dead ends: 696 [2022-03-15 13:52:10,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:10,809 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 91 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:10,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 723 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:10,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-03-15 13:52:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 540. [2022-03-15 13:52:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 539 states have (on average 2.345083487940631) internal successors, (1264), 539 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 1264 transitions. [2022-03-15 13:52:10,816 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 1264 transitions. Word has length 77 [2022-03-15 13:52:10,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:10,817 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 1264 transitions. [2022-03-15 13:52:10,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,817 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 1264 transitions. [2022-03-15 13:52:10,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:10,817 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:10,818 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] [2022-03-15 13:52:10,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 13:52:10,818 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:10,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:10,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1624494014, now seen corresponding path program 14 times [2022-03-15 13:52:10,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:10,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407201485] [2022-03-15 13:52:10,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:10,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:10,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:10,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:10,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407201485] [2022-03-15 13:52:10,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407201485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:10,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:10,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:10,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149632446] [2022-03-15 13:52:10,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:10,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:10,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:10,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:10,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:10,887 INFO L87 Difference]: Start difference. First operand 540 states and 1264 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:11,063 INFO L93 Difference]: Finished difference Result 814 states and 1911 transitions. [2022-03-15 13:52:11,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:52:11,063 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:11,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:11,064 INFO L225 Difference]: With dead ends: 814 [2022-03-15 13:52:11,065 INFO L226 Difference]: Without dead ends: 644 [2022-03-15 13:52:11,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:11,065 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 81 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:11,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 890 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:11,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-03-15 13:52:11,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 520. [2022-03-15 13:52:11,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 519 states have (on average 2.3371868978805397) internal successors, (1213), 519 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 1213 transitions. [2022-03-15 13:52:11,072 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 1213 transitions. Word has length 77 [2022-03-15 13:52:11,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:11,073 INFO L470 AbstractCegarLoop]: Abstraction has 520 states and 1213 transitions. [2022-03-15 13:52:11,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,073 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 1213 transitions. [2022-03-15 13:52:11,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:11,073 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:11,074 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] [2022-03-15 13:52:11,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 13:52:11,074 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:11,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:11,074 INFO L85 PathProgramCache]: Analyzing trace with hash 174466916, now seen corresponding path program 15 times [2022-03-15 13:52:11,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:11,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845208879] [2022-03-15 13:52:11,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:11,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:11,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:11,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845208879] [2022-03-15 13:52:11,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845208879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:11,152 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:11,152 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:11,152 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075383936] [2022-03-15 13:52:11,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:11,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:11,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:11,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:11,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:11,153 INFO L87 Difference]: Start difference. First operand 520 states and 1213 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:11,375 INFO L93 Difference]: Finished difference Result 903 states and 2146 transitions. [2022-03-15 13:52:11,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:52:11,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:11,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:11,377 INFO L225 Difference]: With dead ends: 903 [2022-03-15 13:52:11,378 INFO L226 Difference]: Without dead ends: 736 [2022-03-15 13:52:11,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:52:11,378 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 106 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:11,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 768 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:11,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-03-15 13:52:11,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 528. [2022-03-15 13:52:11,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 2.3358633776091082) internal successors, (1231), 527 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1231 transitions. [2022-03-15 13:52:11,386 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1231 transitions. Word has length 77 [2022-03-15 13:52:11,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:11,387 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 1231 transitions. [2022-03-15 13:52:11,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,387 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1231 transitions. [2022-03-15 13:52:11,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:11,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:11,388 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] [2022-03-15 13:52:11,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 13:52:11,388 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:11,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:11,389 INFO L85 PathProgramCache]: Analyzing trace with hash 507599650, now seen corresponding path program 16 times [2022-03-15 13:52:11,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:11,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103410134] [2022-03-15 13:52:11,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:11,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:11,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:11,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103410134] [2022-03-15 13:52:11,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103410134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:11,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:11,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:11,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849115968] [2022-03-15 13:52:11,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:11,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:11,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:11,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:11,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:11,469 INFO L87 Difference]: Start difference. First operand 528 states and 1231 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:11,645 INFO L93 Difference]: Finished difference Result 875 states and 2077 transitions. [2022-03-15 13:52:11,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:11,645 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:11,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:11,647 INFO L225 Difference]: With dead ends: 875 [2022-03-15 13:52:11,647 INFO L226 Difference]: Without dead ends: 728 [2022-03-15 13:52:11,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:11,647 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 90 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:11,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 856 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:11,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-03-15 13:52:11,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 532. [2022-03-15 13:52:11,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 2.3314500941619585) internal successors, (1238), 531 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1238 transitions. [2022-03-15 13:52:11,655 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 1238 transitions. Word has length 77 [2022-03-15 13:52:11,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:11,656 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 1238 transitions. [2022-03-15 13:52:11,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,656 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 1238 transitions. [2022-03-15 13:52:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:11,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:11,657 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] [2022-03-15 13:52:11,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 13:52:11,657 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:11,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:11,657 INFO L85 PathProgramCache]: Analyzing trace with hash 220278652, now seen corresponding path program 17 times [2022-03-15 13:52:11,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:11,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503138145] [2022-03-15 13:52:11,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:11,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:11,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:11,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:11,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503138145] [2022-03-15 13:52:11,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503138145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:11,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:11,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:11,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156887095] [2022-03-15 13:52:11,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:11,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:11,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:11,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:11,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:11,732 INFO L87 Difference]: Start difference. First operand 532 states and 1238 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:11,907 INFO L93 Difference]: Finished difference Result 854 states and 2017 transitions. [2022-03-15 13:52:11,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:11,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:11,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:11,921 INFO L225 Difference]: With dead ends: 854 [2022-03-15 13:52:11,921 INFO L226 Difference]: Without dead ends: 696 [2022-03-15 13:52:11,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:11,922 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 73 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:11,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 944 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:11,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-03-15 13:52:11,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 524. [2022-03-15 13:52:11,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 523 states have (on average 2.332695984703633) internal successors, (1220), 523 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1220 transitions. [2022-03-15 13:52:11,934 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1220 transitions. Word has length 77 [2022-03-15 13:52:11,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:11,934 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 1220 transitions. [2022-03-15 13:52:11,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1220 transitions. [2022-03-15 13:52:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:11,935 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:11,935 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] [2022-03-15 13:52:11,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 13:52:11,935 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:11,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:11,935 INFO L85 PathProgramCache]: Analyzing trace with hash 401010698, now seen corresponding path program 18 times [2022-03-15 13:52:11,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:11,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460197504] [2022-03-15 13:52:11,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:11,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:12,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:12,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:12,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460197504] [2022-03-15 13:52:12,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460197504] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:12,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:12,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:12,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976980515] [2022-03-15 13:52:12,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:12,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:12,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:12,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:12,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:12,016 INFO L87 Difference]: Start difference. First operand 524 states and 1220 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:12,216 INFO L93 Difference]: Finished difference Result 906 states and 2139 transitions. [2022-03-15 13:52:12,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:52:12,223 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:12,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:12,224 INFO L225 Difference]: With dead ends: 906 [2022-03-15 13:52:12,224 INFO L226 Difference]: Without dead ends: 733 [2022-03-15 13:52:12,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:52:12,225 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 106 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:12,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 801 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:12,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-03-15 13:52:12,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 528. [2022-03-15 13:52:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 2.3282732447817835) internal successors, (1227), 527 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1227 transitions. [2022-03-15 13:52:12,232 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1227 transitions. Word has length 77 [2022-03-15 13:52:12,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:12,232 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 1227 transitions. [2022-03-15 13:52:12,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,232 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1227 transitions. [2022-03-15 13:52:12,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:12,233 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:12,233 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] [2022-03-15 13:52:12,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 13:52:12,233 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:12,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:12,234 INFO L85 PathProgramCache]: Analyzing trace with hash -296758926, now seen corresponding path program 19 times [2022-03-15 13:52:12,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:12,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176123620] [2022-03-15 13:52:12,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:12,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:12,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:12,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:12,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176123620] [2022-03-15 13:52:12,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176123620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:12,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:12,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:12,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845904966] [2022-03-15 13:52:12,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:12,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:12,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:12,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:12,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:12,302 INFO L87 Difference]: Start difference. First operand 528 states and 1227 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:12,466 INFO L93 Difference]: Finished difference Result 839 states and 1974 transitions. [2022-03-15 13:52:12,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:12,466 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:12,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:12,467 INFO L225 Difference]: With dead ends: 839 [2022-03-15 13:52:12,467 INFO L226 Difference]: Without dead ends: 692 [2022-03-15 13:52:12,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:12,468 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 85 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:12,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 931 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:12,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-03-15 13:52:12,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 532. [2022-03-15 13:52:12,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 2.3239171374764593) internal successors, (1234), 531 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1234 transitions. [2022-03-15 13:52:12,474 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 1234 transitions. Word has length 77 [2022-03-15 13:52:12,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:12,474 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 1234 transitions. [2022-03-15 13:52:12,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,475 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 1234 transitions. [2022-03-15 13:52:12,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:12,475 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:12,475 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] [2022-03-15 13:52:12,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 13:52:12,476 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:12,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:12,476 INFO L85 PathProgramCache]: Analyzing trace with hash -584079924, now seen corresponding path program 20 times [2022-03-15 13:52:12,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:12,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634171463] [2022-03-15 13:52:12,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:12,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:12,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:12,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:12,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634171463] [2022-03-15 13:52:12,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634171463] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:12,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:12,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:12,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814946381] [2022-03-15 13:52:12,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:12,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:12,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:12,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:12,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:12,566 INFO L87 Difference]: Start difference. First operand 532 states and 1234 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:12,754 INFO L93 Difference]: Finished difference Result 806 states and 1881 transitions. [2022-03-15 13:52:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:12,754 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:12,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:12,755 INFO L225 Difference]: With dead ends: 806 [2022-03-15 13:52:12,756 INFO L226 Difference]: Without dead ends: 606 [2022-03-15 13:52:12,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:12,756 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 75 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:12,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 842 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:12,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-03-15 13:52:12,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 482. [2022-03-15 13:52:12,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 2.322245322245322) internal successors, (1117), 481 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1117 transitions. [2022-03-15 13:52:12,765 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1117 transitions. Word has length 77 [2022-03-15 13:52:12,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:12,765 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 1117 transitions. [2022-03-15 13:52:12,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,765 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1117 transitions. [2022-03-15 13:52:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:12,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:12,766 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] [2022-03-15 13:52:12,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 13:52:12,766 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:12,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:12,767 INFO L85 PathProgramCache]: Analyzing trace with hash -285934182, now seen corresponding path program 2 times [2022-03-15 13:52:12,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:12,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160336652] [2022-03-15 13:52:12,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:12,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:12,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:12,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:12,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160336652] [2022-03-15 13:52:12,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160336652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:12,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:12,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 13:52:12,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577334385] [2022-03-15 13:52:12,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:12,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 13:52:12,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:12,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 13:52:12,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 13:52:12,798 INFO L87 Difference]: Start difference. First operand 482 states and 1117 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:12,811 INFO L93 Difference]: Finished difference Result 419 states and 922 transitions. [2022-03-15 13:52:12,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 13:52:12,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:12,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:12,812 INFO L225 Difference]: With dead ends: 419 [2022-03-15 13:52:12,812 INFO L226 Difference]: Without dead ends: 387 [2022-03-15 13:52:12,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 13:52:12,813 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 64 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:12,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 144 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:52:12,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-03-15 13:52:12,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2022-03-15 13:52:12,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 2.243523316062176) internal successors, (866), 386 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 866 transitions. [2022-03-15 13:52:12,817 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 866 transitions. Word has length 77 [2022-03-15 13:52:12,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:12,817 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 866 transitions. [2022-03-15 13:52:12,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,817 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 866 transitions. [2022-03-15 13:52:12,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-15 13:52:12,818 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:12,818 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] [2022-03-15 13:52:12,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 13:52:12,818 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:12,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:12,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2078515196, now seen corresponding path program 2 times [2022-03-15 13:52:12,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:12,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788940249] [2022-03-15 13:52:12,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:12,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:12,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:12,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:12,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788940249] [2022-03-15 13:52:12,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788940249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:12,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:12,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 13:52:12,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631411471] [2022-03-15 13:52:12,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:12,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 13:52:12,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:12,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 13:52:12,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 13:52:12,855 INFO L87 Difference]: Start difference. First operand 387 states and 866 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:12,865 INFO L93 Difference]: Finished difference Result 86 states and 128 transitions. [2022-03-15 13:52:12,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 13:52:12,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-03-15 13:52:12,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:12,866 INFO L225 Difference]: With dead ends: 86 [2022-03-15 13:52:12,866 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 13:52:12,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 13:52:12,866 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 16 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:12,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 121 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:52:12,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 13:52:12,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 13:52:12,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 13:52:12,867 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2022-03-15 13:52:12,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:12,867 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 13:52:12,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 13:52:12,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 13:52:12,869 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-15 13:52:12,870 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-15 13:52:12,870 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-15 13:52:12,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-15 13:52:12,872 INFO L732 BasicCegarLoop]: Path program histogram: [20, 20, 2, 2, 1, 1, 1] [2022-03-15 13:52:12,874 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 13:52:12,874 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 13:52:12,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 01:52:12 BasicIcfg [2022-03-15 13:52:12,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 13:52:12,876 INFO L158 Benchmark]: Toolchain (without parser) took 14158.47ms. Allocated memory was 194.0MB in the beginning and 408.9MB in the end (delta: 215.0MB). Free memory was 139.7MB in the beginning and 369.7MB in the end (delta: -230.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 13:52:12,876 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory was 156.1MB in the beginning and 155.9MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 13:52:12,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.71ms. Allocated memory was 194.0MB in the beginning and 281.0MB in the end (delta: 87.0MB). Free memory was 139.5MB in the beginning and 252.7MB in the end (delta: -113.1MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. [2022-03-15 13:52:12,876 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.51ms. Allocated memory is still 281.0MB. Free memory was 252.7MB in the beginning and 251.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 13:52:12,876 INFO L158 Benchmark]: Boogie Preprocessor took 12.61ms. Allocated memory is still 281.0MB. Free memory was 251.1MB in the beginning and 249.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 13:52:12,876 INFO L158 Benchmark]: RCFGBuilder took 290.10ms. Allocated memory is still 281.0MB. Free memory was 249.5MB in the beginning and 237.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 13:52:12,876 INFO L158 Benchmark]: TraceAbstraction took 13636.54ms. Allocated memory was 281.0MB in the beginning and 408.9MB in the end (delta: 127.9MB). Free memory was 236.4MB in the beginning and 369.7MB in the end (delta: -133.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 13:52:12,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory was 156.1MB in the beginning and 155.9MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 193.71ms. Allocated memory was 194.0MB in the beginning and 281.0MB in the end (delta: 87.0MB). Free memory was 139.5MB in the beginning and 252.7MB in the end (delta: -113.1MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.51ms. Allocated memory is still 281.0MB. Free memory was 252.7MB in the beginning and 251.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.61ms. Allocated memory is still 281.0MB. Free memory was 251.1MB in the beginning and 249.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 290.10ms. Allocated memory is still 281.0MB. Free memory was 249.5MB in the beginning and 237.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 13636.54ms. Allocated memory was 281.0MB in the beginning and 408.9MB in the end (delta: 127.9MB). Free memory was 236.4MB in the beginning and 369.7MB in the end (delta: -133.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 69]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 122 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 13.6s, OverallIterations: 47, TraceHistogramMax: 1, PathProgramHistogramMax: 20, EmptinessCheckTime: 0.1s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4765 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4765 mSDsluCounter, 35093 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30722 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7121 IncrementalHoareTripleChecker+Invalid, 7158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 5864 mSDtfsCounter, 7121 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1027 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 867 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3608 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=814occurred in iteration=1, InterpolantAutomatonStates: 801, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 47 MinimizatonAttempts, 8907 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 3611 NumberOfCodeBlocks, 3611 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 3564 ConstructedInterpolants, 0 QuantifiedInterpolants, 15574 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 13:52:12,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...