/usr/bin/java -Xmx16000000000 -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/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:49:13,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:49:13,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:49:13,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:49:13,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:49:13,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:49:13,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:49:13,427 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 [2021-03-10 17:49:13,464 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:49:13,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:49:13,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:49:13,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:49:13,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:49:13,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:49:13,468 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:49:13,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:49:13,468 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:49:13,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:49:13,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:49:13,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:49:13,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:49:13,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:49:13,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:49:13,470 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:49:13,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:49:13,470 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:49:13,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:49:13,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:49:13,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:49:13,470 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:49:13,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:49:13,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:49:13,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:49:13,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:49:13,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:49:13,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:49:13,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:49:13,472 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:49:13,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:49:13,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:49:13,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:49:13,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:49:13,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:49:13,762 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:49:13,763 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:49:13,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2021-03-10 17:49:13,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759064ee8/dab4bd137b9045fe818f7c73e2f3a59e/FLAGcd42a7548 [2021-03-10 17:49:14,375 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:49:14,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2021-03-10 17:49:14,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759064ee8/dab4bd137b9045fe818f7c73e2f3a59e/FLAGcd42a7548 [2021-03-10 17:49:14,854 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759064ee8/dab4bd137b9045fe818f7c73e2f3a59e [2021-03-10 17:49:14,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:49:14,861 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:49:14,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:49:14,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:49:14,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:49:14,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:49:14" (1/1) ... [2021-03-10 17:49:14,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65fc125c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:14, skipping insertion in model container [2021-03-10 17:49:14,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:49:14" (1/1) ... [2021-03-10 17:49:14,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:49:14,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:49:15,363 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2021-03-10 17:49:15,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:49:15,381 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:49:15,414 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2021-03-10 17:49:15,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:49:15,694 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:49:15,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:15 WrapperNode [2021-03-10 17:49:15,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:49:15,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:49:15,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:49:15,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:49:15,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:15" (1/1) ... [2021-03-10 17:49:15,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:15" (1/1) ... [2021-03-10 17:49:15,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:49:15,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:49:15,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:49:15,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:49:15,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:15" (1/1) ... [2021-03-10 17:49:15,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:15" (1/1) ... [2021-03-10 17:49:15,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:15" (1/1) ... [2021-03-10 17:49:15,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:15" (1/1) ... [2021-03-10 17:49:15,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:15" (1/1) ... [2021-03-10 17:49:15,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:15" (1/1) ... [2021-03-10 17:49:15,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:15" (1/1) ... [2021-03-10 17:49:15,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:49:15,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:49:15,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:49:15,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:49:15,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:15" (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 [2021-03-10 17:49:15,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:49:15,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-10 17:49:15,879 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-10 17:49:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-10 17:49:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:49:15,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:49:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:49:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-10 17:49:15,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-10 17:49:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:49:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:49:15,884 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:49:16,331 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:49:16,331 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-03-10 17:49:16,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:49:16 BoogieIcfgContainer [2021-03-10 17:49:16,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:49:16,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:49:16,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:49:16,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:49:16,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:49:14" (1/3) ... [2021-03-10 17:49:16,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a20b52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:49:16, skipping insertion in model container [2021-03-10 17:49:16,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:15" (2/3) ... [2021-03-10 17:49:16,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a20b52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:49:16, skipping insertion in model container [2021-03-10 17:49:16,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:49:16" (3/3) ... [2021-03-10 17:49:16,338 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2021-03-10 17:49:16,345 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:49:16,345 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:49:16,348 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-03-10 17:49:16,349 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:49:16,379 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,379 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,379 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,379 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,379 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,380 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,380 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,380 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,380 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,380 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,382 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,383 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,383 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,387 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,387 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,387 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,388 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:16,393 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-10 17:49:16,408 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-10 17:49:16,433 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:49:16,433 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:49:16,433 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:49:16,433 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:49:16,433 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:49:16,433 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:49:16,434 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:49:16,434 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:49:16,446 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 92 transitions, 192 flow [2021-03-10 17:49:16,477 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 295 states, 287 states have (on average 1.7735191637630663) internal successors, (509), 294 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:16,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 295 states, 287 states have (on average 1.7735191637630663) internal successors, (509), 294 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:16,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-03-10 17:49:16,484 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:16,485 INFO L519 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] [2021-03-10 17:49:16,486 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:49:16,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:16,498 INFO L82 PathProgramCache]: Analyzing trace with hash 595152240, now seen corresponding path program 1 times [2021-03-10 17:49:16,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:16,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065346573] [2021-03-10 17:49:16,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:16,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:16,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065346573] [2021-03-10 17:49:16,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:16,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 17:49:16,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522900953] [2021-03-10 17:49:16,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 17:49:16,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:16,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 17:49:16,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-10 17:49:16,917 INFO L87 Difference]: Start difference. First operand has 295 states, 287 states have (on average 1.7735191637630663) internal successors, (509), 294 states have internal predecessors, (509), 0 states have call successors, (0), 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 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:17,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:17,023 INFO L93 Difference]: Finished difference Result 275 states and 457 transitions. [2021-03-10 17:49:17,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 17:49:17,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2021-03-10 17:49:17,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:17,037 INFO L225 Difference]: With dead ends: 275 [2021-03-10 17:49:17,037 INFO L226 Difference]: Without dead ends: 239 [2021-03-10 17:49:17,038 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 45.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:49:17,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-03-10 17:49:17,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-03-10 17:49:17,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 235 states have (on average 1.702127659574468) internal successors, (400), 238 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:17,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 400 transitions. [2021-03-10 17:49:17,076 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 400 transitions. Word has length 27 [2021-03-10 17:49:17,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:17,076 INFO L480 AbstractCegarLoop]: Abstraction has 239 states and 400 transitions. [2021-03-10 17:49:17,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:17,077 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 400 transitions. [2021-03-10 17:49:17,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-03-10 17:49:17,077 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:17,078 INFO L519 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] [2021-03-10 17:49:17,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:49:17,078 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:49:17,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:17,078 INFO L82 PathProgramCache]: Analyzing trace with hash -340834706, now seen corresponding path program 1 times [2021-03-10 17:49:17,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:17,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570933932] [2021-03-10 17:49:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:17,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570933932] [2021-03-10 17:49:17,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:17,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 17:49:17,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909737609] [2021-03-10 17:49:17,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 17:49:17,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:17,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 17:49:17,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-10 17:49:17,205 INFO L87 Difference]: Start difference. First operand 239 states and 400 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:17,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:17,257 INFO L93 Difference]: Finished difference Result 237 states and 398 transitions. [2021-03-10 17:49:17,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 17:49:17,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2021-03-10 17:49:17,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:17,261 INFO L225 Difference]: With dead ends: 237 [2021-03-10 17:49:17,261 INFO L226 Difference]: Without dead ends: 231 [2021-03-10 17:49:17,261 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.5ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:49:17,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-03-10 17:49:17,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-03-10 17:49:17,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 228 states have (on average 1.719298245614035) internal successors, (392), 230 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:17,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 392 transitions. [2021-03-10 17:49:17,283 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 392 transitions. Word has length 35 [2021-03-10 17:49:17,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:17,284 INFO L480 AbstractCegarLoop]: Abstraction has 231 states and 392 transitions. [2021-03-10 17:49:17,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:17,284 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 392 transitions. [2021-03-10 17:49:17,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 17:49:17,285 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:17,285 INFO L519 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] [2021-03-10 17:49:17,285 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:49:17,285 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:49:17,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:17,286 INFO L82 PathProgramCache]: Analyzing trace with hash 375726026, now seen corresponding path program 1 times [2021-03-10 17:49:17,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:17,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103374811] [2021-03-10 17:49:17,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:17,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:17,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103374811] [2021-03-10 17:49:17,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:17,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 17:49:17,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150322830] [2021-03-10 17:49:17,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 17:49:17,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:17,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 17:49:17,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-10 17:49:17,396 INFO L87 Difference]: Start difference. First operand 231 states and 392 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:17,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:17,433 INFO L93 Difference]: Finished difference Result 201 states and 334 transitions. [2021-03-10 17:49:17,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 17:49:17,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2021-03-10 17:49:17,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:17,435 INFO L225 Difference]: With dead ends: 201 [2021-03-10 17:49:17,435 INFO L226 Difference]: Without dead ends: 161 [2021-03-10 17:49:17,435 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 25.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:49:17,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-03-10 17:49:17,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2021-03-10 17:49:17,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.61875) internal successors, (259), 160 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:17,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 259 transitions. [2021-03-10 17:49:17,448 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 259 transitions. Word has length 40 [2021-03-10 17:49:17,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:17,448 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 259 transitions. [2021-03-10 17:49:17,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:17,448 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 259 transitions. [2021-03-10 17:49:17,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-03-10 17:49:17,454 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:17,454 INFO L519 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] [2021-03-10 17:49:17,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:49:17,455 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:49:17,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:17,456 INFO L82 PathProgramCache]: Analyzing trace with hash 115711212, now seen corresponding path program 1 times [2021-03-10 17:49:17,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:17,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715840012] [2021-03-10 17:49:17,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:17,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715840012] [2021-03-10 17:49:17,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:17,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 17:49:17,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528571535] [2021-03-10 17:49:17,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 17:49:17,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:17,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 17:49:17,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-10 17:49:17,563 INFO L87 Difference]: Start difference. First operand 161 states and 259 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:17,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:17,592 INFO L93 Difference]: Finished difference Result 159 states and 257 transitions. [2021-03-10 17:49:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 17:49:17,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2021-03-10 17:49:17,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:17,594 INFO L225 Difference]: With dead ends: 159 [2021-03-10 17:49:17,594 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 17:49:17,595 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:49:17,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 17:49:17,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 17:49:17,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 17:49:17,596 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-03-10 17:49:17,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:17,596 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 17:49:17,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:17,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 17:49:17,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 17:49:17,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:49:17,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:49:17 BasicIcfg [2021-03-10 17:49:17,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:49:17,602 INFO L168 Benchmark]: Toolchain (without parser) took 2744.09 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 232.6 MB in the beginning and 225.3 MB in the end (delta: 7.4 MB). Peak memory consumption was 100.3 MB. Max. memory is 16.0 GB. [2021-03-10 17:49:17,603 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:49:17,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 833.70 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 232.2 MB in the beginning and 325.0 MB in the end (delta: -92.8 MB). Peak memory consumption was 65.6 MB. Max. memory is 16.0 GB. [2021-03-10 17:49:17,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.14 ms. Allocated memory is still 350.2 MB. Free memory was 325.0 MB in the beginning and 321.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-10 17:49:17,605 INFO L168 Benchmark]: Boogie Preprocessor took 39.75 ms. Allocated memory is still 350.2 MB. Free memory was 321.9 MB in the beginning and 318.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:49:17,605 INFO L168 Benchmark]: RCFGBuilder took 518.47 ms. Allocated memory is still 350.2 MB. Free memory was 318.7 MB in the beginning and 281.0 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.0 GB. [2021-03-10 17:49:17,605 INFO L168 Benchmark]: TraceAbstraction took 1267.20 ms. Allocated memory is still 350.2 MB. Free memory was 279.9 MB in the beginning and 225.3 MB in the end (delta: 54.7 MB). Peak memory consumption was 53.6 MB. Max. memory is 16.0 GB. [2021-03-10 17:49:17,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 833.70 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 232.2 MB in the beginning and 325.0 MB in the end (delta: -92.8 MB). Peak memory consumption was 65.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 77.14 ms. Allocated memory is still 350.2 MB. Free memory was 325.0 MB in the beginning and 321.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 39.75 ms. Allocated memory is still 350.2 MB. Free memory was 321.9 MB in the beginning and 318.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 518.47 ms. Allocated memory is still 350.2 MB. Free memory was 318.7 MB in the beginning and 281.0 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1267.20 ms. Allocated memory is still 350.2 MB. Free memory was 279.9 MB in the beginning and 225.3 MB in the end (delta: 54.7 MB). Peak memory consumption was 53.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 87 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1166.0ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 14.7ms, AutomataDifference: 273.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 43.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 312 SDtfs, 307 SDslu, 608 SDs, 0 SdLazy, 65 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 53.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 123.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=295occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 63.1ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.1ms SsaConstructionTime, 98.0ms SatisfiabilityAnalysisTime, 416.7ms InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...