/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/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9b7772ad7705253c1305067fc38dc9bc7271fbe3-9b7772a [2021-04-15 00:05:23,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-15 00:05:23,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-15 00:05:23,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-15 00:05:23,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-15 00:05:23,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-15 00:05:23,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-15 00:05:23,916 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 [2021-04-15 00:05:23,949 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-15 00:05:23,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-15 00:05:23,950 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-04-15 00:05:23,950 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-04-15 00:05:23,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-15 00:05:23,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-15 00:05:23,953 INFO L138 SettingsManager]: * Use SBE=true [2021-04-15 00:05:23,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-15 00:05:23,953 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-15 00:05:23,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-15 00:05:23,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-15 00:05:23,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-15 00:05:23,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-15 00:05:23,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-15 00:05:23,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-15 00:05:23,955 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-15 00:05:23,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-15 00:05:23,955 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-15 00:05:23,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-15 00:05:23,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-15 00:05:23,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-15 00:05:23,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-15 00:05:23,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-15 00:05:23,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-15 00:05:23,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-15 00:05:23,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-15 00:05:23,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-15 00:05:23,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-15 00:05:23,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-15 00:05:23,957 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-04-15 00:05:23,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-15 00:05:23,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-15 00:05:24,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-15 00:05:24,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-15 00:05:24,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-15 00:05:24,293 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-15 00:05:24,293 INFO L275 PluginConnector]: CDTParser initialized [2021-04-15 00:05:24,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2021-04-15 00:05:24,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c0c0fa69/72b0994617ea4449bfff40fa39b7e862/FLAG83b6ed230 [2021-04-15 00:05:24,854 INFO L306 CDTParser]: Found 1 translation units. [2021-04-15 00:05:24,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2021-04-15 00:05:24,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c0c0fa69/72b0994617ea4449bfff40fa39b7e862/FLAG83b6ed230 [2021-04-15 00:05:25,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c0c0fa69/72b0994617ea4449bfff40fa39b7e862 [2021-04-15 00:05:25,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-15 00:05:25,376 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-15 00:05:25,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-15 00:05:25,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-15 00:05:25,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-15 00:05:25,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:05:25" (1/1) ... [2021-04-15 00:05:25,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a33975a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25, skipping insertion in model container [2021-04-15 00:05:25,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:05:25" (1/1) ... [2021-04-15 00:05:25,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-15 00:05:25,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-15 00:05:25,540 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-04-15 00:05:25,657 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[30997,31010] [2021-04-15 00:05:25,662 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[31682,31695] [2021-04-15 00:05:25,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 00:05:25,673 INFO L203 MainTranslator]: Completed pre-run [2021-04-15 00:05:25,684 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-04-15 00:05:25,718 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[30997,31010] [2021-04-15 00:05:25,720 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[31682,31695] [2021-04-15 00:05:25,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 00:05:25,772 INFO L208 MainTranslator]: Completed translation [2021-04-15 00:05:25,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25 WrapperNode [2021-04-15 00:05:25,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-15 00:05:25,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-15 00:05:25,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-15 00:05:25,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-15 00:05:25,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25" (1/1) ... [2021-04-15 00:05:25,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25" (1/1) ... [2021-04-15 00:05:25,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-15 00:05:25,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-15 00:05:25,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-15 00:05:25,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-15 00:05:25,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25" (1/1) ... [2021-04-15 00:05:25,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25" (1/1) ... [2021-04-15 00:05:25,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25" (1/1) ... [2021-04-15 00:05:25,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25" (1/1) ... [2021-04-15 00:05:25,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25" (1/1) ... [2021-04-15 00:05:25,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25" (1/1) ... [2021-04-15 00:05:25,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25" (1/1) ... [2021-04-15 00:05:25,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-15 00:05:25,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-15 00:05:25,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-15 00:05:25,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-15 00:05:25,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25" (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 [2021-04-15 00:05:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-15 00:05:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-04-15 00:05:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-04-15 00:05:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-04-15 00:05:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-04-15 00:05:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-15 00:05:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-15 00:05:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-15 00:05:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-15 00:05:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-15 00:05:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-15 00:05:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-15 00:05:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-15 00:05:25,918 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-15 00:05:26,291 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-15 00:05:26,291 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-04-15 00:05:26,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:05:26 BoogieIcfgContainer [2021-04-15 00:05:26,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-15 00:05:26,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-15 00:05:26,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-15 00:05:26,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-15 00:05:26,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 12:05:25" (1/3) ... [2021-04-15 00:05:26,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d31a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:05:26, skipping insertion in model container [2021-04-15 00:05:26,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:05:25" (2/3) ... [2021-04-15 00:05:26,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d31a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:05:26, skipping insertion in model container [2021-04-15 00:05:26,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:05:26" (3/3) ... [2021-04-15 00:05:26,300 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i [2021-04-15 00:05:26,305 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-04-15 00:05:26,305 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-15 00:05:26,310 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-15 00:05:26,311 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-15 00:05:26,344 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,344 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,345 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,345 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,345 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,345 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,345 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,345 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,346 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,346 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,346 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,346 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,347 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,347 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,347 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,347 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,348 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,348 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,348 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,348 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,349 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,349 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,349 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,349 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,350 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,350 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,350 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,350 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,352 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,352 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,352 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,352 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,353 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,353 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,353 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,353 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,354 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,354 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,355 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,355 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,355 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,355 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,355 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,356 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,360 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,360 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,361 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,361 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,365 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,365 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,366 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,366 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,369 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,369 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,370 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,370 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,374 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,374 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,374 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,374 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,375 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,375 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:05:26,384 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-04-15 00:05:26,397 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-04-15 00:05:26,413 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-15 00:05:26,414 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-15 00:05:26,414 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-15 00:05:26,414 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-15 00:05:26,414 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-15 00:05:26,414 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-15 00:05:26,414 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-15 00:05:26,414 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-15 00:05:26,422 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 74 transitions, 170 flow [2021-04-15 00:05:26,476 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 938 states, 934 states have (on average 2.7548179871520344) internal successors, (2573), 937 states have internal predecessors, (2573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:26,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 938 states, 934 states have (on average 2.7548179871520344) internal successors, (2573), 937 states have internal predecessors, (2573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:26,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-04-15 00:05:26,502 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:05:26,502 INFO L551 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] [2021-04-15 00:05:26,502 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 00:05:26,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:05:26,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1057410247, now seen corresponding path program 1 times [2021-04-15 00:05:26,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:05:26,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129301226] [2021-04-15 00:05:26,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:05:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:05:26,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:05:26,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129301226] [2021-04-15 00:05:26,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:05:26,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-15 00:05:26,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599494533] [2021-04-15 00:05:26,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-04-15 00:05:26,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:05:26,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-04-15 00:05:26,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-04-15 00:05:26,661 INFO L87 Difference]: Start difference. First operand has 938 states, 934 states have (on average 2.7548179871520344) internal successors, (2573), 937 states have internal predecessors, (2573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:26,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:05:26,694 INFO L93 Difference]: Finished difference Result 938 states and 2363 transitions. [2021-04-15 00:05:26,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 00:05:26,695 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2021-04-15 00:05:26,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:05:26,712 INFO L225 Difference]: With dead ends: 938 [2021-04-15 00:05:26,712 INFO L226 Difference]: Without dead ends: 857 [2021-04-15 00:05:26,713 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-04-15 00:05:26,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2021-04-15 00:05:26,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 857. [2021-04-15 00:05:26,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 854 states have (on average 2.5491803278688523) internal successors, (2177), 856 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:26,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 2177 transitions. [2021-04-15 00:05:26,799 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 2177 transitions. Word has length 26 [2021-04-15 00:05:26,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:05:26,800 INFO L480 AbstractCegarLoop]: Abstraction has 857 states and 2177 transitions. [2021-04-15 00:05:26,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:26,800 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 2177 transitions. [2021-04-15 00:05:26,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-04-15 00:05:26,801 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:05:26,802 INFO L551 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] [2021-04-15 00:05:26,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-15 00:05:26,802 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 00:05:26,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:05:26,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1057440038, now seen corresponding path program 1 times [2021-04-15 00:05:26,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:05:26,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594392633] [2021-04-15 00:05:26,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:05:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:05:26,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:05:26,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594392633] [2021-04-15 00:05:26,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:05:26,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-15 00:05:26,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374454807] [2021-04-15 00:05:26,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-15 00:05:26,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:05:26,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-15 00:05:26,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 00:05:26,882 INFO L87 Difference]: Start difference. First operand 857 states and 2177 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:26,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:05:26,919 INFO L93 Difference]: Finished difference Result 866 states and 2146 transitions. [2021-04-15 00:05:26,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 00:05:26,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2021-04-15 00:05:26,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:05:26,925 INFO L225 Difference]: With dead ends: 866 [2021-04-15 00:05:26,925 INFO L226 Difference]: Without dead ends: 716 [2021-04-15 00:05:26,926 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 00:05:26,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-04-15 00:05:26,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 671. [2021-04-15 00:05:26,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 668 states have (on average 2.5134730538922154) internal successors, (1679), 670 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:26,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1679 transitions. [2021-04-15 00:05:26,949 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1679 transitions. Word has length 26 [2021-04-15 00:05:26,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:05:26,950 INFO L480 AbstractCegarLoop]: Abstraction has 671 states and 1679 transitions. [2021-04-15 00:05:26,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:26,950 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1679 transitions. [2021-04-15 00:05:26,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-04-15 00:05:26,956 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:05:26,956 INFO L551 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] [2021-04-15 00:05:26,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-15 00:05:26,957 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 00:05:26,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:05:26,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1056945993, now seen corresponding path program 1 times [2021-04-15 00:05:26,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:05:26,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101305119] [2021-04-15 00:05:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:05:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:05:27,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:05:27,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101305119] [2021-04-15 00:05:27,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:05:27,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-15 00:05:27,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994944918] [2021-04-15 00:05:27,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-15 00:05:27,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:05:27,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-15 00:05:27,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 00:05:27,003 INFO L87 Difference]: Start difference. First operand 671 states and 1679 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:27,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:05:27,017 INFO L93 Difference]: Finished difference Result 614 states and 1498 transitions. [2021-04-15 00:05:27,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 00:05:27,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2021-04-15 00:05:27,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:05:27,020 INFO L225 Difference]: With dead ends: 614 [2021-04-15 00:05:27,020 INFO L226 Difference]: Without dead ends: 452 [2021-04-15 00:05:27,021 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 00:05:27,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-04-15 00:05:27,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2021-04-15 00:05:27,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 450 states have (on average 2.437777777777778) internal successors, (1097), 451 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:27,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 1097 transitions. [2021-04-15 00:05:27,032 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 1097 transitions. Word has length 29 [2021-04-15 00:05:27,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:05:27,033 INFO L480 AbstractCegarLoop]: Abstraction has 452 states and 1097 transitions. [2021-04-15 00:05:27,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:27,033 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 1097 transitions. [2021-04-15 00:05:27,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 00:05:27,035 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:05:27,035 INFO L551 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] [2021-04-15 00:05:27,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-15 00:05:27,035 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 00:05:27,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:05:27,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1468473485, now seen corresponding path program 1 times [2021-04-15 00:05:27,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:05:27,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67976482] [2021-04-15 00:05:27,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:05:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:05:27,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:05:27,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67976482] [2021-04-15 00:05:27,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:05:27,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 00:05:27,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676655789] [2021-04-15 00:05:27,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 00:05:27,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:05:27,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 00:05:27,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-15 00:05:27,127 INFO L87 Difference]: Start difference. First operand 452 states and 1097 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:27,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:05:27,237 INFO L93 Difference]: Finished difference Result 617 states and 1537 transitions. [2021-04-15 00:05:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 00:05:27,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-04-15 00:05:27,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:05:27,240 INFO L225 Difference]: With dead ends: 617 [2021-04-15 00:05:27,240 INFO L226 Difference]: Without dead ends: 449 [2021-04-15 00:05:27,240 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 57.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-04-15 00:05:27,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-04-15 00:05:27,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 425. [2021-04-15 00:05:27,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 423 states have (on average 2.4018912529550827) internal successors, (1016), 424 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:27,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 1016 transitions. [2021-04-15 00:05:27,251 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 1016 transitions. Word has length 36 [2021-04-15 00:05:27,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:05:27,252 INFO L480 AbstractCegarLoop]: Abstraction has 425 states and 1016 transitions. [2021-04-15 00:05:27,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:27,252 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 1016 transitions. [2021-04-15 00:05:27,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 00:05:27,258 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:05:27,258 INFO L551 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] [2021-04-15 00:05:27,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-15 00:05:27,258 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 00:05:27,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:05:27,259 INFO L82 PathProgramCache]: Analyzing trace with hash -437786765, now seen corresponding path program 2 times [2021-04-15 00:05:27,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:05:27,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53791768] [2021-04-15 00:05:27,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:05:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:05:27,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:05:27,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53791768] [2021-04-15 00:05:27,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:05:27,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 00:05:27,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001157086] [2021-04-15 00:05:27,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 00:05:27,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:05:27,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 00:05:27,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-15 00:05:27,334 INFO L87 Difference]: Start difference. First operand 425 states and 1016 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:27,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:05:27,384 INFO L93 Difference]: Finished difference Result 272 states and 668 transitions. [2021-04-15 00:05:27,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-15 00:05:27,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-04-15 00:05:27,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:05:27,385 INFO L225 Difference]: With dead ends: 272 [2021-04-15 00:05:27,385 INFO L226 Difference]: Without dead ends: 0 [2021-04-15 00:05:27,386 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 32.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-04-15 00:05:27,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-15 00:05:27,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-15 00:05:27,386 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) [2021-04-15 00:05:27,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-15 00:05:27,386 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2021-04-15 00:05:27,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:05:27,387 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-15 00:05:27,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 00:05:27,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-15 00:05:27,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-15 00:05:27,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-15 00:05:27,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 12:05:27 BasicIcfg [2021-04-15 00:05:27,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-15 00:05:27,396 INFO L168 Benchmark]: Toolchain (without parser) took 2016.93 ms. Allocated memory is still 339.7 MB. Free memory was 302.1 MB in the beginning and 153.6 MB in the end (delta: 148.6 MB). Peak memory consumption was 147.8 MB. Max. memory is 16.0 GB. [2021-04-15 00:05:27,397 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 339.7 MB. Free memory was 320.6 MB in the beginning and 320.5 MB in the end (delta: 125.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-15 00:05:27,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.62 ms. Allocated memory is still 339.7 MB. Free memory was 302.0 MB in the beginning and 302.5 MB in the end (delta: -469.1 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-04-15 00:05:27,398 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.39 ms. Allocated memory is still 339.7 MB. Free memory was 302.5 MB in the beginning and 300.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-15 00:05:27,399 INFO L168 Benchmark]: Boogie Preprocessor took 29.45 ms. Allocated memory is still 339.7 MB. Free memory was 300.3 MB in the beginning and 299.3 MB in the end (delta: 943.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-15 00:05:27,400 INFO L168 Benchmark]: RCFGBuilder took 440.36 ms. Allocated memory is still 339.7 MB. Free memory was 299.3 MB in the beginning and 277.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-15 00:05:27,402 INFO L168 Benchmark]: TraceAbstraction took 1097.49 ms. Allocated memory is still 339.7 MB. Free memory was 276.3 MB in the beginning and 153.6 MB in the end (delta: 122.7 MB). Peak memory consumption was 123.7 MB. Max. memory is 16.0 GB. [2021-04-15 00:05:27,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 339.7 MB. Free memory was 320.6 MB in the beginning and 320.5 MB in the end (delta: 125.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 395.62 ms. Allocated memory is still 339.7 MB. Free memory was 302.0 MB in the beginning and 302.5 MB in the end (delta: -469.1 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.39 ms. Allocated memory is still 339.7 MB. Free memory was 302.5 MB in the beginning and 300.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.45 ms. Allocated memory is still 339.7 MB. Free memory was 300.3 MB in the beginning and 299.3 MB in the end (delta: 943.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 440.36 ms. Allocated memory is still 339.7 MB. Free memory was 299.3 MB in the beginning and 277.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1097.49 ms. Allocated memory is still 339.7 MB. Free memory was 276.3 MB in the beginning and 153.6 MB in the end (delta: 122.7 MB). Peak memory consumption was 123.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 753]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 725]: 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 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 67 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 979.2ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 39.4ms, AutomataDifference: 295.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 62.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 365 SDtfs, 191 SDslu, 430 SDs, 0 SdLazy, 117 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 105.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 99.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=938occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 118.4ms AutomataMinimizationTime, 5 MinimizatonAttempts, 69 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.6ms SsaConstructionTime, 57.6ms SatisfiabilityAnalysisTime, 254.9ms InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...