/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/bench-exp2x9.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 00:22:48,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 00:22:48,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 00:22:48,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 00:22:48,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 00:22:48,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 00:22:48,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 00:22:48,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-09 00:22:48,412 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 00:22:48,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 00:22:48,412 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 00:22:48,412 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 00:22:48,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 00:22:48,413 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 00:22:48,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 00:22:48,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 00:22:48,414 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 00:22:48,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 00:22:48,414 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 00:22:48,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 00:22:48,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 00:22:48,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 00:22:48,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 00:22:48,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 00:22:48,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 00:22:48,415 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 00:22:48,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 00:22:48,415 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 00:22:48,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 00:22:48,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 00:22:48,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 00:22:48,416 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 00:22:48,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 00:22:48,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 00:22:48,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 00:22:48,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 00:22:48,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 00:22:48,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 00:22:48,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 00:22:48,416 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 00:22:48,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 00:22:48,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 00:22:48,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 00:22:48,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 00:22:48,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 00:22:48,661 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 00:22:48,672 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 00:22:48,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2022-02-09 00:22:48,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4652cb8be/bc2833c880014f05a1887137c49aff9a/FLAG9e917710d [2022-02-09 00:22:49,184 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 00:22:49,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2022-02-09 00:22:49,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4652cb8be/bc2833c880014f05a1887137c49aff9a/FLAG9e917710d [2022-02-09 00:22:49,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4652cb8be/bc2833c880014f05a1887137c49aff9a [2022-02-09 00:22:49,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 00:22:49,612 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 00:22:49,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 00:22:49,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 00:22:49,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 00:22:49,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:22:49" (1/1) ... [2022-02-09 00:22:49,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3098cd14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49, skipping insertion in model container [2022-02-09 00:22:49,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:22:49" (1/1) ... [2022-02-09 00:22:49,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 00:22:49,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 00:22:49,784 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/bench-exp2x9.wvr.c[2669,2682] [2022-02-09 00:22:49,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 00:22:49,791 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 00:22:49,813 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/bench-exp2x9.wvr.c[2669,2682] [2022-02-09 00:22:49,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 00:22:49,829 INFO L208 MainTranslator]: Completed translation [2022-02-09 00:22:49,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49 WrapperNode [2022-02-09 00:22:49,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 00:22:49,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 00:22:49,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 00:22:49,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 00:22:49,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49" (1/1) ... [2022-02-09 00:22:49,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49" (1/1) ... [2022-02-09 00:22:49,856 INFO L137 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-02-09 00:22:49,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 00:22:49,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 00:22:49,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 00:22:49,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 00:22:49,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49" (1/1) ... [2022-02-09 00:22:49,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49" (1/1) ... [2022-02-09 00:22:49,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49" (1/1) ... [2022-02-09 00:22:49,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49" (1/1) ... [2022-02-09 00:22:49,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49" (1/1) ... [2022-02-09 00:22:49,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49" (1/1) ... [2022-02-09 00:22:49,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49" (1/1) ... [2022-02-09 00:22:49,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 00:22:49,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 00:22:49,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 00:22:49,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 00:22:49,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49" (1/1) ... [2022-02-09 00:22:49,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 00:22:49,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:22:49,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 00:22:49,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 00:22:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 00:22:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 00:22:49,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 00:22:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 00:22:49,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 00:22:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 00:22:49,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 00:22:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-09 00:22:49,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-09 00:22:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 00:22:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 00:22:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 00:22:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 00:22:49,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 00:22:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 00:22:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 00:22:49,968 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 00:22:50,057 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 00:22:50,058 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 00:22:50,304 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 00:22:50,312 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 00:22:50,312 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-09 00:22:50,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:22:50 BoogieIcfgContainer [2022-02-09 00:22:50,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 00:22:50,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 00:22:50,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 00:22:50,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 00:22:50,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 12:22:49" (1/3) ... [2022-02-09 00:22:50,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153810f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:22:50, skipping insertion in model container [2022-02-09 00:22:50,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:22:49" (2/3) ... [2022-02-09 00:22:50,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153810f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:22:50, skipping insertion in model container [2022-02-09 00:22:50,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:22:50" (3/3) ... [2022-02-09 00:22:50,321 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2022-02-09 00:22:50,324 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 00:22:50,324 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 00:22:50,325 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 00:22:50,325 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 00:22:50,357 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,358 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,358 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,358 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,361 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,362 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,362 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,362 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,363 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,364 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,364 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,364 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,369 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,369 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,371 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,371 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,372 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,373 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:22:50,377 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-09 00:22:50,417 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 00:22:50,422 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 [2022-02-09 00:22:50,423 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-09 00:22:50,432 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 152 places, 149 transitions, 330 flow [2022-02-09 00:22:52,808 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 71783 states, 71782 states have (on average 4.936947981388092) internal successors, (354384), 71782 states have internal predecessors, (354384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:22:53,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 71783 states, 71782 states have (on average 4.936947981388092) internal successors, (354384), 71782 states have internal predecessors, (354384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:22:53,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-09 00:22:53,810 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:22:53,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:22:53,812 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 00:22:53,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:22:53,816 INFO L85 PathProgramCache]: Analyzing trace with hash 727525, now seen corresponding path program 1 times [2022-02-09 00:22:53,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:22:53,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628682233] [2022-02-09 00:22:53,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:22:53,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:22:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:22:54,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:22:54,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:22:54,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628682233] [2022-02-09 00:22:54,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628682233] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:22:54,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:22:54,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 00:22:54,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135266893] [2022-02-09 00:22:54,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:22:54,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 00:22:54,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:22:54,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 00:22:54,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 00:22:54,267 INFO L87 Difference]: Start difference. First operand has 71783 states, 71782 states have (on average 4.936947981388092) internal successors, (354384), 71782 states have internal predecessors, (354384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:22:55,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:22:55,820 INFO L93 Difference]: Finished difference Result 71783 states and 329612 transitions. [2022-02-09 00:22:55,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 00:22:55,822 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-02-09 00:22:55,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:22:56,777 INFO L225 Difference]: With dead ends: 71783 [2022-02-09 00:22:56,777 INFO L226 Difference]: Without dead ends: 71781 [2022-02-09 00:22:56,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 00:22:56,781 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:22:56,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:22:57,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71781 states. [2022-02-09 00:23:00,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71781 to 71781. [2022-02-09 00:23:00,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71781 states, 71780 states have (on average 4.591947617720813) internal successors, (329610), 71780 states have internal predecessors, (329610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:01,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71781 states to 71781 states and 329610 transitions. [2022-02-09 00:23:01,617 INFO L78 Accepts]: Start accepts. Automaton has 71781 states and 329610 transitions. Word has length 92 [2022-02-09 00:23:01,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:23:01,620 INFO L470 AbstractCegarLoop]: Abstraction has 71781 states and 329610 transitions. [2022-02-09 00:23:01,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:01,621 INFO L276 IsEmpty]: Start isEmpty. Operand 71781 states and 329610 transitions. [2022-02-09 00:23:02,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-09 00:23:02,019 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:23:02,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:23:02,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 00:23:02,020 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 00:23:02,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:23:02,021 INFO L85 PathProgramCache]: Analyzing trace with hash 2147208055, now seen corresponding path program 1 times [2022-02-09 00:23:02,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:23:02,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313108712] [2022-02-09 00:23:02,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:23:02,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:23:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:23:02,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:23:02,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:23:02,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313108712] [2022-02-09 00:23:02,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313108712] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:23:02,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:23:02,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-09 00:23:02,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413546207] [2022-02-09 00:23:02,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:23:02,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-09 00:23:02,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:23:02,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-09 00:23:02,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-09 00:23:02,759 INFO L87 Difference]: Start difference. First operand 71781 states and 329610 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:03,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:23:03,881 INFO L93 Difference]: Finished difference Result 75682 states and 346756 transitions. [2022-02-09 00:23:03,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 00:23:03,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-02-09 00:23:03,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:23:04,715 INFO L225 Difference]: With dead ends: 75682 [2022-02-09 00:23:04,715 INFO L226 Difference]: Without dead ends: 75235 [2022-02-09 00:23:04,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-02-09 00:23:04,717 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 125 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-09 00:23:04,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 299 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-09 00:23:04,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75235 states. [2022-02-09 00:23:07,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75235 to 73120. [2022-02-09 00:23:07,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73120 states, 73119 states have (on average 4.585948932561988) internal successors, (335320), 73119 states have internal predecessors, (335320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:08,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73120 states to 73120 states and 335320 transitions. [2022-02-09 00:23:08,913 INFO L78 Accepts]: Start accepts. Automaton has 73120 states and 335320 transitions. Word has length 92 [2022-02-09 00:23:08,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:23:08,914 INFO L470 AbstractCegarLoop]: Abstraction has 73120 states and 335320 transitions. [2022-02-09 00:23:08,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:08,915 INFO L276 IsEmpty]: Start isEmpty. Operand 73120 states and 335320 transitions. [2022-02-09 00:23:09,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-09 00:23:09,165 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:23:09,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:23:09,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 00:23:09,166 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 00:23:09,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:23:09,166 INFO L85 PathProgramCache]: Analyzing trace with hash 60299954, now seen corresponding path program 1 times [2022-02-09 00:23:09,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:23:09,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171575122] [2022-02-09 00:23:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:23:09,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:23:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:23:09,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:23:09,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:23:09,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171575122] [2022-02-09 00:23:09,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171575122] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:23:09,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:23:09,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:23:09,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731089712] [2022-02-09 00:23:09,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:23:09,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:23:09,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:23:09,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:23:09,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:23:09,397 INFO L87 Difference]: Start difference. First operand 73120 states and 335320 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:10,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:23:10,640 INFO L93 Difference]: Finished difference Result 75235 states and 344077 transitions. [2022-02-09 00:23:10,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:23:10,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-02-09 00:23:10,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:23:11,146 INFO L225 Difference]: With dead ends: 75235 [2022-02-09 00:23:11,146 INFO L226 Difference]: Without dead ends: 74782 [2022-02-09 00:23:11,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-02-09 00:23:11,152 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 143 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-09 00:23:11,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 270 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-09 00:23:11,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74782 states. [2022-02-09 00:23:13,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74782 to 73216. [2022-02-09 00:23:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73216 states, 73215 states have (on average 4.582435293314211) internal successors, (335503), 73215 states have internal predecessors, (335503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:14,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73216 states to 73216 states and 335503 transitions. [2022-02-09 00:23:14,730 INFO L78 Accepts]: Start accepts. Automaton has 73216 states and 335503 transitions. Word has length 100 [2022-02-09 00:23:14,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:23:14,731 INFO L470 AbstractCegarLoop]: Abstraction has 73216 states and 335503 transitions. [2022-02-09 00:23:14,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:14,731 INFO L276 IsEmpty]: Start isEmpty. Operand 73216 states and 335503 transitions. [2022-02-09 00:23:14,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-09 00:23:14,974 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:23:14,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:23:14,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-09 00:23:14,975 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 00:23:14,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:23:14,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1550229488, now seen corresponding path program 1 times [2022-02-09 00:23:14,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:23:14,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10113324] [2022-02-09 00:23:14,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:23:14,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:23:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:23:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:23:15,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:23:15,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10113324] [2022-02-09 00:23:15,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10113324] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:23:15,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970819872] [2022-02-09 00:23:15,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:23:15,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:23:15,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:23:15,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:23:15,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-09 00:23:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:23:15,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 00:23:15,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:23:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:23:16,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:23:16,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:23:16,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970819872] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:23:16,745 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:23:16,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-02-09 00:23:16,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687633455] [2022-02-09 00:23:16,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:23:16,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-09 00:23:16,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:23:16,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-09 00:23:16,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-02-09 00:23:16,752 INFO L87 Difference]: Start difference. First operand 73216 states and 335503 transitions. Second operand has 14 states, 14 states have (on average 12.357142857142858) internal successors, (173), 14 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:19,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:23:19,168 INFO L93 Difference]: Finished difference Result 120912 states and 548989 transitions. [2022-02-09 00:23:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:23:19,169 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.357142857142858) internal successors, (173), 14 states have internal predecessors, (173), 0 states have call successors, (0), 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 100 [2022-02-09 00:23:19,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:23:20,116 INFO L225 Difference]: With dead ends: 120912 [2022-02-09 00:23:20,116 INFO L226 Difference]: Without dead ends: 120912 [2022-02-09 00:23:20,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:23:20,122 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 855 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:23:20,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 1035 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:23:20,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120912 states. [2022-02-09 00:23:24,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120912 to 82883. [2022-02-09 00:23:24,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82883 states, 82882 states have (on average 4.58344393233754) internal successors, (379885), 82882 states have internal predecessors, (379885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:24,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82883 states to 82883 states and 379885 transitions. [2022-02-09 00:23:24,995 INFO L78 Accepts]: Start accepts. Automaton has 82883 states and 379885 transitions. Word has length 100 [2022-02-09 00:23:24,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:23:24,997 INFO L470 AbstractCegarLoop]: Abstraction has 82883 states and 379885 transitions. [2022-02-09 00:23:24,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.357142857142858) internal successors, (173), 14 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:24,998 INFO L276 IsEmpty]: Start isEmpty. Operand 82883 states and 379885 transitions. [2022-02-09 00:23:25,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-09 00:23:25,268 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:23:25,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:23:25,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-09 00:23:25,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:23:25,488 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 00:23:25,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:23:25,489 INFO L85 PathProgramCache]: Analyzing trace with hash -978377090, now seen corresponding path program 2 times [2022-02-09 00:23:25,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:23:25,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530427585] [2022-02-09 00:23:25,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:23:25,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:23:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:23:25,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:23:25,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:23:25,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530427585] [2022-02-09 00:23:25,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530427585] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:23:25,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:23:25,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-09 00:23:25,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104792518] [2022-02-09 00:23:25,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:23:25,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-09 00:23:25,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:23:25,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-09 00:23:25,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-09 00:23:25,669 INFO L87 Difference]: Start difference. First operand 82883 states and 379885 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:27,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:23:27,188 INFO L93 Difference]: Finished difference Result 89978 states and 412810 transitions. [2022-02-09 00:23:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 00:23:27,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-02-09 00:23:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:23:27,791 INFO L225 Difference]: With dead ends: 89978 [2022-02-09 00:23:27,791 INFO L226 Difference]: Without dead ends: 89978 [2022-02-09 00:23:27,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:23:27,792 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 193 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-09 00:23:27,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 382 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-09 00:23:28,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89978 states. [2022-02-09 00:23:31,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89978 to 88603. [2022-02-09 00:23:32,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88603 states, 88602 states have (on average 4.590471998374754) internal successors, (406725), 88602 states have internal predecessors, (406725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:33,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88603 states to 88603 states and 406725 transitions. [2022-02-09 00:23:33,095 INFO L78 Accepts]: Start accepts. Automaton has 88603 states and 406725 transitions. Word has length 100 [2022-02-09 00:23:33,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:23:33,096 INFO L470 AbstractCegarLoop]: Abstraction has 88603 states and 406725 transitions. [2022-02-09 00:23:33,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:33,096 INFO L276 IsEmpty]: Start isEmpty. Operand 88603 states and 406725 transitions. [2022-02-09 00:23:33,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-09 00:23:33,865 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:23:33,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:23:33,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-09 00:23:33,865 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 00:23:33,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:23:33,874 INFO L85 PathProgramCache]: Analyzing trace with hash 157553520, now seen corresponding path program 1 times [2022-02-09 00:23:33,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:23:33,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233337730] [2022-02-09 00:23:33,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:23:33,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:23:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:23:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:23:34,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:23:34,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233337730] [2022-02-09 00:23:34,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233337730] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:23:34,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:23:34,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:23:34,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883634149] [2022-02-09 00:23:34,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:23:34,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:23:34,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:23:34,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:23:34,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:23:34,026 INFO L87 Difference]: Start difference. First operand 88603 states and 406725 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:35,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:23:35,225 INFO L93 Difference]: Finished difference Result 89458 states and 409641 transitions. [2022-02-09 00:23:35,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:23:35,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-02-09 00:23:35,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:23:36,061 INFO L225 Difference]: With dead ends: 89458 [2022-02-09 00:23:36,063 INFO L226 Difference]: Without dead ends: 88945 [2022-02-09 00:23:36,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-02-09 00:23:36,064 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 148 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:23:36,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 273 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:23:36,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88945 states. [2022-02-09 00:23:39,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88945 to 88225. [2022-02-09 00:23:39,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88225 states, 88224 states have (on average 4.591369695321001) internal successors, (405069), 88224 states have internal predecessors, (405069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88225 states to 88225 states and 405069 transitions. [2022-02-09 00:23:40,522 INFO L78 Accepts]: Start accepts. Automaton has 88225 states and 405069 transitions. Word has length 100 [2022-02-09 00:23:40,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:23:40,522 INFO L470 AbstractCegarLoop]: Abstraction has 88225 states and 405069 transitions. [2022-02-09 00:23:40,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:40,522 INFO L276 IsEmpty]: Start isEmpty. Operand 88225 states and 405069 transitions. [2022-02-09 00:23:40,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-09 00:23:40,943 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:23:40,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:23:40,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-09 00:23:40,943 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 00:23:40,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:23:40,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2055982674, now seen corresponding path program 1 times [2022-02-09 00:23:40,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:23:40,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26003935] [2022-02-09 00:23:40,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:23:40,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:23:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:23:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:23:41,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:23:41,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26003935] [2022-02-09 00:23:41,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26003935] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:23:41,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088829861] [2022-02-09 00:23:41,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:23:41,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:23:41,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:23:41,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:23:41,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 00:23:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:23:41,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 00:23:41,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:23:42,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:23:42,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:23:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:23:42,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088829861] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:23:42,425 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:23:42,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-02-09 00:23:42,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226972923] [2022-02-09 00:23:42,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:23:42,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-09 00:23:42,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:23:42,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-09 00:23:42,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-02-09 00:23:42,430 INFO L87 Difference]: Start difference. First operand 88225 states and 405069 transitions. Second operand has 14 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:44,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:23:44,868 INFO L93 Difference]: Finished difference Result 147805 states and 668660 transitions. [2022-02-09 00:23:44,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:23:44,868 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 0 states have call successors, (0), 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 100 [2022-02-09 00:23:44,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:23:46,909 INFO L225 Difference]: With dead ends: 147805 [2022-02-09 00:23:46,909 INFO L226 Difference]: Without dead ends: 147805 [2022-02-09 00:23:46,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:23:46,910 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 914 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:23:46,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [914 Valid, 1101 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:23:47,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147805 states. [2022-02-09 00:23:52,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147805 to 97003. [2022-02-09 00:23:52,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97003 states, 97002 states have (on average 4.608544153728789) internal successors, (447038), 97002 states have internal predecessors, (447038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:53,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97003 states to 97003 states and 447038 transitions. [2022-02-09 00:23:53,354 INFO L78 Accepts]: Start accepts. Automaton has 97003 states and 447038 transitions. Word has length 100 [2022-02-09 00:23:53,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:23:53,354 INFO L470 AbstractCegarLoop]: Abstraction has 97003 states and 447038 transitions. [2022-02-09 00:23:53,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:53,354 INFO L276 IsEmpty]: Start isEmpty. Operand 97003 states and 447038 transitions. [2022-02-09 00:23:53,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-09 00:23:53,710 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:23:53,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:23:53,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-09 00:23:53,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-09 00:23:53,912 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 00:23:53,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:23:53,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2007330100, now seen corresponding path program 2 times [2022-02-09 00:23:53,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:23:53,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780313093] [2022-02-09 00:23:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:23:53,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:23:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:23:54,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:23:54,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:23:54,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780313093] [2022-02-09 00:23:54,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780313093] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:23:54,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:23:54,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-09 00:23:54,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959035147] [2022-02-09 00:23:54,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:23:54,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-09 00:23:54,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:23:54,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-09 00:23:54,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-09 00:23:54,162 INFO L87 Difference]: Start difference. First operand 97003 states and 447038 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:23:56,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:23:56,307 INFO L93 Difference]: Finished difference Result 105437 states and 486001 transitions. [2022-02-09 00:23:56,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 00:23:56,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-02-09 00:23:56,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:23:57,773 INFO L225 Difference]: With dead ends: 105437 [2022-02-09 00:23:57,773 INFO L226 Difference]: Without dead ends: 105437 [2022-02-09 00:23:57,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:23:57,774 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 210 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-09 00:23:57,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 399 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-09 00:23:58,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105437 states. [2022-02-09 00:24:02,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105437 to 104439. [2022-02-09 00:24:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104439 states, 104438 states have (on average 4.61124303414466) internal successors, (481589), 104438 states have internal predecessors, (481589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:24:03,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104439 states to 104439 states and 481589 transitions. [2022-02-09 00:24:03,726 INFO L78 Accepts]: Start accepts. Automaton has 104439 states and 481589 transitions. Word has length 100 [2022-02-09 00:24:03,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:24:03,727 INFO L470 AbstractCegarLoop]: Abstraction has 104439 states and 481589 transitions. [2022-02-09 00:24:03,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:24:03,727 INFO L276 IsEmpty]: Start isEmpty. Operand 104439 states and 481589 transitions. [2022-02-09 00:24:04,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-02-09 00:24:04,088 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:24:04,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:24:04,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-09 00:24:04,089 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 00:24:04,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:24:04,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1773705685, now seen corresponding path program 1 times [2022-02-09 00:24:04,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:24:04,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057044195] [2022-02-09 00:24:04,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:24:04,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:24:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:24:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:24:15,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:24:15,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057044195] [2022-02-09 00:24:15,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057044195] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:24:15,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468752721] [2022-02-09 00:24:15,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:24:15,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:24:15,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:24:15,622 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:24:15,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 00:24:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:24:15,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 41 conjunts are in the unsatisfiable core [2022-02-09 00:24:15,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:30:03,753 WARN L228 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 82 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)