/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:37:08,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:37:08,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:37:08,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:37:08,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:37:08,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:37:08,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:37:08,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:37:08,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:37:08,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:37:08,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:37:08,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:37:08,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:37:08,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:37:08,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:37:08,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:37:08,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:37:08,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:37:08,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:37:08,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:37:08,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:37:08,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:37:08,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:37:08,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:37:08,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:37:08,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:37:08,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:37:08,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:37:08,779 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 [2021-01-26 17:37:08,833 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:37:08,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:37:08,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:37:08,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:37:08,838 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:37:08,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:37:08,839 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:37:08,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:37:08,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:37:08,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:37:08,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:37:08,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:37:08,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:37:08,842 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:37:08,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:37:08,842 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:37:08,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:37:08,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:37:08,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:37:08,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:37:08,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:37:08,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:37:08,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:37:08,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:37:08,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:37:08,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:37:08,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:37:08,846 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:37:08,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:37:08,846 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:37:08,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:37:09,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:37:09,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:37:09,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:37:09,346 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:37:09,346 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:37:09,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2021-01-26 17:37:09,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1630f2130/e4d6fe897f734d8b8a663fd006492b37/FLAG6467c6642 [2021-01-26 17:37:10,275 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:37:10,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2021-01-26 17:37:10,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1630f2130/e4d6fe897f734d8b8a663fd006492b37/FLAG6467c6642 [2021-01-26 17:37:10,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1630f2130/e4d6fe897f734d8b8a663fd006492b37 [2021-01-26 17:37:10,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:37:10,496 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:37:10,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:37:10,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:37:10,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:37:10,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:37:10" (1/1) ... [2021-01-26 17:37:10,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f2dd3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:10, skipping insertion in model container [2021-01-26 17:37:10,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:37:10" (1/1) ... [2021-01-26 17:37:10,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:37:10,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:37:11,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:37:11,102 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:37:11,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:37:11,341 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:37:11,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:11 WrapperNode [2021-01-26 17:37:11,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:37:11,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:37:11,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:37:11,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:37:11,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:11" (1/1) ... [2021-01-26 17:37:11,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:11" (1/1) ... [2021-01-26 17:37:11,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:37:11,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:37:11,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:37:11,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:37:11,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:11" (1/1) ... [2021-01-26 17:37:11,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:11" (1/1) ... [2021-01-26 17:37:11,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:11" (1/1) ... [2021-01-26 17:37:11,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:11" (1/1) ... [2021-01-26 17:37:11,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:11" (1/1) ... [2021-01-26 17:37:11,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:11" (1/1) ... [2021-01-26 17:37:11,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:11" (1/1) ... [2021-01-26 17:37:11,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:37:11,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:37:11,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:37:11,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:37:11,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:37:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:37:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:37:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:37:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:37:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:37:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:37:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:37:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:37:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:37:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:37:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-26 17:37:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-26 17:37:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:37:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:37:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:37:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:37:11,545 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:37:12,174 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:37:12,174 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:37:12,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:37:12 BoogieIcfgContainer [2021-01-26 17:37:12,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:37:12,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:37:12,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:37:12,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:37:12,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:37:10" (1/3) ... [2021-01-26 17:37:12,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657ead7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:37:12, skipping insertion in model container [2021-01-26 17:37:12,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:11" (2/3) ... [2021-01-26 17:37:12,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657ead7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:37:12, skipping insertion in model container [2021-01-26 17:37:12,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:37:12" (3/3) ... [2021-01-26 17:37:12,187 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.opt.i [2021-01-26 17:37:12,207 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:37:12,207 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:37:12,211 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:37:12,213 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:37:12,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,248 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,248 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,249 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,249 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,249 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,249 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,250 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,250 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,251 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,251 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,251 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,252 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,252 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,252 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,252 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,252 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,253 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,253 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,254 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,254 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,255 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,255 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,255 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,255 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,255 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,255 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,257 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,257 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,257 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,257 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,258 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,258 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,258 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,258 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,259 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,259 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,259 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,259 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,261 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,262 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,267 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,267 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,268 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,268 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,270 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,270 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,271 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,271 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,273 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:12,276 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:37:12,289 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-26 17:37:12,315 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:37:12,315 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:37:12,315 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:37:12,315 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:37:12,315 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:37:12,316 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:37:12,316 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:37:12,316 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:37:12,330 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 95 transitions, 210 flow [2021-01-26 17:37:26,615 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:26,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:26,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-26 17:37:26,923 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:37:26,924 INFO L504 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] [2021-01-26 17:37:26,925 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:37:26,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:37:26,934 INFO L82 PathProgramCache]: Analyzing trace with hash 207288984, now seen corresponding path program 1 times [2021-01-26 17:37:26,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:37:26,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970332920] [2021-01-26 17:37:26,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:37:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:37:27,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:37:27,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970332920] [2021-01-26 17:37:27,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:37:27,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:37:27,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127277790] [2021-01-26 17:37:27,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:37:27,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:37:27,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:37:27,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:37:27,660 INFO L87 Difference]: Start difference. First operand has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 0 states have call successors, (0), 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 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:29,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:37:29,780 INFO L93 Difference]: Finished difference Result 93543 states and 406523 transitions. [2021-01-26 17:37:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:37:29,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2021-01-26 17:37:29,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:37:30,202 INFO L225 Difference]: With dead ends: 93543 [2021-01-26 17:37:30,202 INFO L226 Difference]: Without dead ends: 32146 [2021-01-26 17:37:30,204 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:37:30,204 INFO L78 Accepts]: Start accepts. Automaton has 32146 states. Word has length 49 [2021-01-26 17:37:30,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:37:30,206 INFO L481 AbstractCegarLoop]: Abstraction has 32146 states. [2021-01-26 17:37:30,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:30,207 INFO L276 IsEmpty]: Start isEmpty. Operand 32146 states. [2021-01-26 17:37:30,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-26 17:37:30,286 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:37:30,287 INFO L504 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] [2021-01-26 17:37:30,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:37:30,287 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:37:30,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:37:30,288 INFO L82 PathProgramCache]: Analyzing trace with hash -2026880935, now seen corresponding path program 1 times [2021-01-26 17:37:30,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:37:30,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265462897] [2021-01-26 17:37:30,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:37:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:37:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:37:30,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265462897] [2021-01-26 17:37:30,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:37:30,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:37:30,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114385253] [2021-01-26 17:37:30,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:37:30,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:37:30,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:37:30,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:37:30,849 INFO L87 Difference]: Start difference. First operand 32146 states. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:31,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:37:31,340 INFO L93 Difference]: Finished difference Result 35086 states and 148580 transitions. [2021-01-26 17:37:31,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:37:31,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-01-26 17:37:31,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:37:31,797 INFO L225 Difference]: With dead ends: 35086 [2021-01-26 17:37:31,803 INFO L226 Difference]: Without dead ends: 28226 [2021-01-26 17:37:31,804 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:37:31,804 INFO L78 Accepts]: Start accepts. Automaton has 28226 states. Word has length 51 [2021-01-26 17:37:31,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:37:31,810 INFO L481 AbstractCegarLoop]: Abstraction has 28226 states. [2021-01-26 17:37:31,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:31,811 INFO L276 IsEmpty]: Start isEmpty. Operand 28226 states. [2021-01-26 17:37:31,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-26 17:37:31,941 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:37:31,941 INFO L504 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] [2021-01-26 17:37:31,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:37:31,942 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:37:31,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:37:31,943 INFO L82 PathProgramCache]: Analyzing trace with hash 412575002, now seen corresponding path program 1 times [2021-01-26 17:37:31,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:37:31,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769788388] [2021-01-26 17:37:31,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:37:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:37:32,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:37:32,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769788388] [2021-01-26 17:37:32,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:37:32,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:37:32,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426460328] [2021-01-26 17:37:32,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:37:32,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:37:32,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:37:32,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:37:32,153 INFO L87 Difference]: Start difference. First operand 28226 states. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:32,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:37:32,503 INFO L93 Difference]: Finished difference Result 30326 states and 127602 transitions. [2021-01-26 17:37:32,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:37:32,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-01-26 17:37:32,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:37:32,827 INFO L225 Difference]: With dead ends: 30326 [2021-01-26 17:37:32,827 INFO L226 Difference]: Without dead ends: 25426 [2021-01-26 17:37:32,828 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:37:32,828 INFO L78 Accepts]: Start accepts. Automaton has 25426 states. Word has length 53 [2021-01-26 17:37:32,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:37:32,829 INFO L481 AbstractCegarLoop]: Abstraction has 25426 states. [2021-01-26 17:37:32,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:32,833 INFO L276 IsEmpty]: Start isEmpty. Operand 25426 states. [2021-01-26 17:37:32,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-26 17:37:32,960 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:37:32,960 INFO L504 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] [2021-01-26 17:37:32,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:37:32,960 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:37:32,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:37:32,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1670743673, now seen corresponding path program 1 times [2021-01-26 17:37:32,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:37:32,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851975139] [2021-01-26 17:37:32,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:37:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:37:33,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:37:33,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851975139] [2021-01-26 17:37:33,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:37:33,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:37:33,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378953305] [2021-01-26 17:37:33,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:37:33,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:37:33,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:37:33,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:37:33,093 INFO L87 Difference]: Start difference. First operand 25426 states. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:33,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:37:33,496 INFO L93 Difference]: Finished difference Result 32786 states and 137310 transitions. [2021-01-26 17:37:33,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:37:33,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2021-01-26 17:37:33,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:37:33,787 INFO L225 Difference]: With dead ends: 32786 [2021-01-26 17:37:33,787 INFO L226 Difference]: Without dead ends: 17281 [2021-01-26 17:37:33,788 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:37:33,788 INFO L78 Accepts]: Start accepts. Automaton has 17281 states. Word has length 55 [2021-01-26 17:37:33,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:37:33,788 INFO L481 AbstractCegarLoop]: Abstraction has 17281 states. [2021-01-26 17:37:33,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 17281 states. [2021-01-26 17:37:33,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-26 17:37:33,867 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:37:33,868 INFO L504 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] [2021-01-26 17:37:33,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:37:33,868 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:37:33,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:37:33,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1313260234, now seen corresponding path program 1 times [2021-01-26 17:37:33,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:37:33,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408590559] [2021-01-26 17:37:33,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:37:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:37:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:37:34,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408590559] [2021-01-26 17:37:34,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:37:34,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:37:34,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375834527] [2021-01-26 17:37:34,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:37:34,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:37:34,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:37:34,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:37:34,082 INFO L87 Difference]: Start difference. First operand 17281 states. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:34,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:37:34,459 INFO L93 Difference]: Finished difference Result 24921 states and 101243 transitions. [2021-01-26 17:37:34,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:37:34,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2021-01-26 17:37:34,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:37:34,507 INFO L225 Difference]: With dead ends: 24921 [2021-01-26 17:37:34,507 INFO L226 Difference]: Without dead ends: 11651 [2021-01-26 17:37:34,508 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:37:34,508 INFO L78 Accepts]: Start accepts. Automaton has 11651 states. Word has length 58 [2021-01-26 17:37:34,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:37:34,508 INFO L481 AbstractCegarLoop]: Abstraction has 11651 states. [2021-01-26 17:37:34,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:34,509 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states. [2021-01-26 17:37:34,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-26 17:37:34,542 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:37:34,542 INFO L504 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] [2021-01-26 17:37:34,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:37:34,543 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:37:34,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:37:34,543 INFO L82 PathProgramCache]: Analyzing trace with hash 655749958, now seen corresponding path program 1 times [2021-01-26 17:37:34,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:37:34,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485757989] [2021-01-26 17:37:34,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:37:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:37:34,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:37:34,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485757989] [2021-01-26 17:37:34,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:37:34,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:37:34,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737243764] [2021-01-26 17:37:34,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:37:34,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:37:34,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:37:34,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:37:34,686 INFO L87 Difference]: Start difference. First operand 11651 states. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:35,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:37:35,000 INFO L93 Difference]: Finished difference Result 14851 states and 58757 transitions. [2021-01-26 17:37:35,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:37:35,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2021-01-26 17:37:35,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:37:35,027 INFO L225 Difference]: With dead ends: 14851 [2021-01-26 17:37:35,027 INFO L226 Difference]: Without dead ends: 7231 [2021-01-26 17:37:35,028 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:37:35,028 INFO L78 Accepts]: Start accepts. Automaton has 7231 states. Word has length 59 [2021-01-26 17:37:35,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:37:35,028 INFO L481 AbstractCegarLoop]: Abstraction has 7231 states. [2021-01-26 17:37:35,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:35,029 INFO L276 IsEmpty]: Start isEmpty. Operand 7231 states. [2021-01-26 17:37:35,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-01-26 17:37:35,044 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:37:35,045 INFO L504 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] [2021-01-26 17:37:35,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-26 17:37:35,045 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:37:35,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:37:35,046 INFO L82 PathProgramCache]: Analyzing trace with hash 792710772, now seen corresponding path program 1 times [2021-01-26 17:37:35,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:37:35,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155642609] [2021-01-26 17:37:35,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:37:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:37:35,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:37:35,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155642609] [2021-01-26 17:37:35,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:37:35,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:37:35,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149310554] [2021-01-26 17:37:35,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:37:35,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:37:35,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:37:35,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:37:35,198 INFO L87 Difference]: Start difference. First operand 7231 states. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:35,626 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-01-26 17:37:35,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:37:35,718 INFO L93 Difference]: Finished difference Result 5951 states and 22991 transitions. [2021-01-26 17:37:35,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:37:35,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2021-01-26 17:37:35,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:37:35,719 INFO L225 Difference]: With dead ends: 5951 [2021-01-26 17:37:35,719 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:37:35,720 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:37:35,720 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 60 [2021-01-26 17:37:35,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:37:35,720 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:37:35,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:37:35,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:37:35,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-26 17:37:35,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:37:35 BasicIcfg [2021-01-26 17:37:35,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:37:35,728 INFO L168 Benchmark]: Toolchain (without parser) took 25242.21 ms. Allocated memory was 302.0 MB in the beginning and 7.3 GB in the end (delta: 7.0 GB). Free memory was 276.2 MB in the beginning and 6.4 GB in the end (delta: -6.2 GB). Peak memory consumption was 803.7 MB. Max. memory is 16.0 GB. [2021-01-26 17:37:35,729 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 272.9 MB in the end (delta: 136.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:37:35,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 843.71 ms. Allocated memory is still 302.0 MB. Free memory was 275.2 MB in the beginning and 274.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.0 GB. [2021-01-26 17:37:35,731 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.11 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 272.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:37:35,732 INFO L168 Benchmark]: Boogie Preprocessor took 29.58 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 271.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:37:35,732 INFO L168 Benchmark]: RCFGBuilder took 718.60 ms. Allocated memory is still 302.0 MB. Free memory was 271.1 MB in the beginning and 245.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-01-26 17:37:35,733 INFO L168 Benchmark]: TraceAbstraction took 23547.69 ms. Allocated memory was 302.0 MB in the beginning and 7.3 GB in the end (delta: 7.0 GB). Free memory was 244.9 MB in the beginning and 6.4 GB in the end (delta: -6.2 GB). Peak memory consumption was 773.4 MB. Max. memory is 16.0 GB. [2021-01-26 17:37:35,737 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 272.9 MB in the end (delta: 136.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 843.71 ms. Allocated memory is still 302.0 MB. Free memory was 275.2 MB in the beginning and 274.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 83.11 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 272.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.58 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 271.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 718.60 ms. Allocated memory is still 302.0 MB. Free memory was 271.1 MB in the beginning and 245.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 23547.69 ms. Allocated memory was 302.0 MB in the beginning and 7.3 GB in the end (delta: 7.0 GB). Free memory was 244.9 MB in the beginning and 6.4 GB in the end (delta: -6.2 GB). Peak memory consumption was 773.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.2s, HoareTripleCheckerStatistics: 872 SDtfs, 1218 SDslu, 2686 SDs, 0 SdLazy, 169 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73649occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 385 NumberOfCodeBlocks, 385 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 58728 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...