/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-344d29da17dfcedfb91d6006a5dbd12b556a868d-344d29d [2021-02-16 17:19:41,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-16 17:19:41,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-16 17:19:42,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-16 17:19:42,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-16 17:19:42,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-16 17:19:42,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-16 17:19:42,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-16 17:19:42,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-16 17:19:42,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-16 17:19:42,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-16 17:19:42,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-16 17:19:42,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-16 17:19:42,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-16 17:19:42,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-16 17:19:42,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-16 17:19:42,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-16 17:19:42,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-16 17:19:42,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-16 17:19:42,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-16 17:19:42,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-16 17:19:42,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-16 17:19:42,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-16 17:19:42,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-16 17:19:42,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-16 17:19:42,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-16 17:19:42,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-16 17:19:42,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-16 17:19:42,154 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 [2021-02-16 17:19:42,212 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-16 17:19:42,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-16 17:19:42,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-16 17:19:42,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-16 17:19:42,219 INFO L138 SettingsManager]: * Use SBE=true [2021-02-16 17:19:42,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-16 17:19:42,220 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-16 17:19:42,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-16 17:19:42,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-16 17:19:42,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-16 17:19:42,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-16 17:19:42,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-16 17:19:42,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-16 17:19:42,222 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-16 17:19:42,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-16 17:19:42,223 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-16 17:19:42,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-16 17:19:42,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-16 17:19:42,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-16 17:19:42,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-16 17:19:42,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-16 17:19:42,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-16 17:19:42,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-16 17:19:42,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-16 17:19:42,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-16 17:19:42,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-16 17:19:42,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-16 17:19:42,225 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-16 17:19:42,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-16 17:19:42,226 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-16 17:19:42,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-16 17:19:42,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-16 17:19:42,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-16 17:19:42,707 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-16 17:19:42,708 INFO L275 PluginConnector]: CDTParser initialized [2021-02-16 17:19:42,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2021-02-16 17:19:42,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0003a6faa/34c6546ba7cd4c8b95f2207fac821f8f/FLAG61c2eb757 [2021-02-16 17:19:43,580 INFO L306 CDTParser]: Found 1 translation units. [2021-02-16 17:19:43,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2021-02-16 17:19:43,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0003a6faa/34c6546ba7cd4c8b95f2207fac821f8f/FLAG61c2eb757 [2021-02-16 17:19:43,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0003a6faa/34c6546ba7cd4c8b95f2207fac821f8f [2021-02-16 17:19:43,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-16 17:19:43,847 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-02-16 17:19:43,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-16 17:19:43,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-16 17:19:43,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-16 17:19:43,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 05:19:43" (1/1) ... [2021-02-16 17:19:43,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a34a766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:43, skipping insertion in model container [2021-02-16 17:19:43,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 05:19:43" (1/1) ... [2021-02-16 17:19:43,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-16 17:19:43,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-16 17:19:44,199 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-wmm/safe003_tso.opt.i[949,962] [2021-02-16 17:19:44,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 17:19:44,480 INFO L203 MainTranslator]: Completed pre-run [2021-02-16 17:19:44,498 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-wmm/safe003_tso.opt.i[949,962] [2021-02-16 17:19:44,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 17:19:44,641 INFO L208 MainTranslator]: Completed translation [2021-02-16 17:19:44,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:44 WrapperNode [2021-02-16 17:19:44,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-16 17:19:44,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-16 17:19:44,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-16 17:19:44,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-16 17:19:44,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:44" (1/1) ... [2021-02-16 17:19:44,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:44" (1/1) ... [2021-02-16 17:19:44,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-16 17:19:44,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-16 17:19:44,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-16 17:19:44,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-16 17:19:44,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:44" (1/1) ... [2021-02-16 17:19:44,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:44" (1/1) ... [2021-02-16 17:19:44,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:44" (1/1) ... [2021-02-16 17:19:44,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:44" (1/1) ... [2021-02-16 17:19:44,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:44" (1/1) ... [2021-02-16 17:19:44,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:44" (1/1) ... [2021-02-16 17:19:44,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:44" (1/1) ... [2021-02-16 17:19:44,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-16 17:19:44,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-16 17:19:44,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-16 17:19:44,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-16 17:19:44,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:44" (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 [2021-02-16 17:19:44,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-16 17:19:44,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-02-16 17:19:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-16 17:19:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-16 17:19:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-02-16 17:19:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-02-16 17:19:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-02-16 17:19:44,853 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-02-16 17:19:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-02-16 17:19:44,853 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-02-16 17:19:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-16 17:19:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-02-16 17:19:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-16 17:19:44,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-16 17:19:44,855 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-16 17:19:45,338 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-16 17:19:45,339 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-02-16 17:19:45,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:19:45 BoogieIcfgContainer [2021-02-16 17:19:45,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-16 17:19:45,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-16 17:19:45,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-16 17:19:45,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-16 17:19:45,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 05:19:43" (1/3) ... [2021-02-16 17:19:45,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce91aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:19:45, skipping insertion in model container [2021-02-16 17:19:45,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:19:44" (2/3) ... [2021-02-16 17:19:45,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce91aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:19:45, skipping insertion in model container [2021-02-16 17:19:45,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:19:45" (3/3) ... [2021-02-16 17:19:45,354 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2021-02-16 17:19:45,363 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-16 17:19:45,363 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-16 17:19:45,369 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-16 17:19:45,370 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-16 17:19:45,403 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,403 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,403 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,404 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,404 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,404 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,407 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,407 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,408 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,408 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,410 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,410 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,411 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,411 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,411 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,411 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,412 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,412 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,412 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,412 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,416 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,416 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,421 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,421 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,424 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,424 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,425 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:19:45,427 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-02-16 17:19:45,449 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-02-16 17:19:45,484 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-16 17:19:45,484 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-16 17:19:45,484 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-16 17:19:45,484 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-16 17:19:45,485 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-16 17:19:45,485 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-16 17:19:45,485 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-16 17:19:45,485 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-16 17:19:45,505 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 75 transitions, 165 flow [2021-02-16 17:19:46,451 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:19:46,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:19:46,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-02-16 17:19:46,554 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:19:46,555 INFO L505 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] [2021-02-16 17:19:46,556 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:19:46,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:19:46,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1780672703, now seen corresponding path program 1 times [2021-02-16 17:19:46,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:19:46,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344554716] [2021-02-16 17:19:46,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:19:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:19:47,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:47,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:19:47,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:47,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:19:47,100 WARN L141 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-02-16 17:19:47,102 WARN L147 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size 17 [2021-02-16 17:19:47,121 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:19:47,123 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:19:47,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:47,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:19:47,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:47,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:19:47,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:47,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:19:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:19:47,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344554716] [2021-02-16 17:19:47,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:19:47,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:19:47,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108652256] [2021-02-16 17:19:47,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:19:47,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:19:47,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:19:47,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:19:47,242 INFO L87 Difference]: Start difference. First operand has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 0 states have call successors, (0), 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 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 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) [2021-02-16 17:19:47,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:19:47,901 INFO L93 Difference]: Finished difference Result 15206 states and 52085 transitions. [2021-02-16 17:19:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-16 17:19:47,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 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 [2021-02-16 17:19:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:19:47,963 INFO L225 Difference]: With dead ends: 15206 [2021-02-16 17:19:47,963 INFO L226 Difference]: Without dead ends: 3916 [2021-02-16 17:19:47,966 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:19:48,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2021-02-16 17:19:48,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3436. [2021-02-16 17:19:48,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3436 states, 3435 states have (on average 3.2631732168850074) internal successors, (11209), 3435 states have internal predecessors, (11209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:19:48,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 11209 transitions. [2021-02-16 17:19:48,406 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 11209 transitions. Word has length 40 [2021-02-16 17:19:48,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:19:48,408 INFO L480 AbstractCegarLoop]: Abstraction has 3436 states and 11209 transitions. [2021-02-16 17:19:48,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 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) [2021-02-16 17:19:48,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 11209 transitions. [2021-02-16 17:19:48,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-02-16 17:19:48,423 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:19:48,424 INFO L505 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] [2021-02-16 17:19:48,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-16 17:19:48,424 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:19:48,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:19:48,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1857582995, now seen corresponding path program 1 times [2021-02-16 17:19:48,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:19:48,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060722627] [2021-02-16 17:19:48,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:19:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:19:48,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:48,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:19:48,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:48,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:19:48,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:48,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:19:48,691 WARN L141 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-02-16 17:19:48,693 WARN L147 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size 17 [2021-02-16 17:19:48,713 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:19:48,717 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:19:48,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:48,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:19:48,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:48,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:19:48,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:48,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:19:48,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:19:48,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060722627] [2021-02-16 17:19:48,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:19:48,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-16 17:19:48,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549075326] [2021-02-16 17:19:48,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-16 17:19:48,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:19:48,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-16 17:19:48,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:19:48,785 INFO L87 Difference]: Start difference. First operand 3436 states and 11209 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:19:49,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:19:49,098 INFO L93 Difference]: Finished difference Result 5080 states and 16342 transitions. [2021-02-16 17:19:49,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-16 17:19:49,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2021-02-16 17:19:49,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:19:49,123 INFO L225 Difference]: With dead ends: 5080 [2021-02-16 17:19:49,123 INFO L226 Difference]: Without dead ends: 2932 [2021-02-16 17:19:49,124 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:19:49,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2021-02-16 17:19:49,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 2452. [2021-02-16 17:19:49,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2452 states, 2451 states have (on average 3.1550387596899223) internal successors, (7733), 2451 states have internal predecessors, (7733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:19:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2452 states to 2452 states and 7733 transitions. [2021-02-16 17:19:49,262 INFO L78 Accepts]: Start accepts. Automaton has 2452 states and 7733 transitions. Word has length 45 [2021-02-16 17:19:49,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:19:49,263 INFO L480 AbstractCegarLoop]: Abstraction has 2452 states and 7733 transitions. [2021-02-16 17:19:49,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:19:49,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2452 states and 7733 transitions. [2021-02-16 17:19:49,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-16 17:19:49,273 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:19:49,274 INFO L505 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] [2021-02-16 17:19:49,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-16 17:19:49,274 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:19:49,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:19:49,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1259929078, now seen corresponding path program 1 times [2021-02-16 17:19:49,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:19:49,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881119267] [2021-02-16 17:19:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:19:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:19:49,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:49,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:19:49,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:49,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:19:49,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:49,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:19:49,445 WARN L141 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-02-16 17:19:49,447 WARN L147 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size 17 [2021-02-16 17:19:49,463 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:19:49,467 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:19:49,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:49,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:19:49,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:49,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:19:49,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:49,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:19:49,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:19:49,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881119267] [2021-02-16 17:19:49,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:19:49,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-16 17:19:49,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810808112] [2021-02-16 17:19:49,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-16 17:19:49,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:19:49,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-16 17:19:49,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:19:49,534 INFO L87 Difference]: Start difference. First operand 2452 states and 7733 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:19:49,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:19:49,768 INFO L93 Difference]: Finished difference Result 2816 states and 8821 transitions. [2021-02-16 17:19:49,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-16 17:19:49,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2021-02-16 17:19:49,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:19:49,783 INFO L225 Difference]: With dead ends: 2816 [2021-02-16 17:19:49,783 INFO L226 Difference]: Without dead ends: 1656 [2021-02-16 17:19:49,784 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-02-16 17:19:49,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2021-02-16 17:19:49,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1642. [2021-02-16 17:19:49,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1641 states have (on average 3.1511273613650213) internal successors, (5171), 1641 states have internal predecessors, (5171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:19:49,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 5171 transitions. [2021-02-16 17:19:49,849 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 5171 transitions. Word has length 47 [2021-02-16 17:19:49,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:19:49,851 INFO L480 AbstractCegarLoop]: Abstraction has 1642 states and 5171 transitions. [2021-02-16 17:19:49,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:19:49,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 5171 transitions. [2021-02-16 17:19:49,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-02-16 17:19:49,856 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:19:49,856 INFO L505 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] [2021-02-16 17:19:49,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-16 17:19:49,857 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:19:49,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:19:49,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1361658786, now seen corresponding path program 1 times [2021-02-16 17:19:49,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:19:49,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250037682] [2021-02-16 17:19:49,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:19:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:19:49,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:49,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:19:49,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:49,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:19:49,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:49,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:19:49,998 WARN L141 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-02-16 17:19:50,000 WARN L147 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size 17 [2021-02-16 17:19:50,014 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:19:50,017 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:19:50,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:50,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:19:50,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:50,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:19:50,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:19:50,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:19:50,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:19:50,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250037682] [2021-02-16 17:19:50,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:19:50,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-16 17:19:50,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570704542] [2021-02-16 17:19:50,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-16 17:19:50,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:19:50,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-16 17:19:50,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:19:50,087 INFO L87 Difference]: Start difference. First operand 1642 states and 5171 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:19:50,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:19:50,266 INFO L93 Difference]: Finished difference Result 1482 states and 4643 transitions. [2021-02-16 17:19:50,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-16 17:19:50,267 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2021-02-16 17:19:50,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:19:50,267 INFO L225 Difference]: With dead ends: 1482 [2021-02-16 17:19:50,267 INFO L226 Difference]: Without dead ends: 0 [2021-02-16 17:19:50,268 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:19:50,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-16 17:19:50,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-16 17:19:50,269 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) [2021-02-16 17:19:50,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-16 17:19:50,269 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2021-02-16 17:19:50,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:19:50,269 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-16 17:19:50,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:19:50,270 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-16 17:19:50,270 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-16 17:19:50,270 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-16 17:19:50,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 05:19:50 BasicIcfg [2021-02-16 17:19:50,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-16 17:19:50,277 INFO L168 Benchmark]: Toolchain (without parser) took 6441.28 ms. Allocated memory was 316.7 MB in the beginning and 826.3 MB in the end (delta: 509.6 MB). Free memory was 290.1 MB in the beginning and 739.2 MB in the end (delta: -449.1 MB). Peak memory consumption was 63.1 MB. Max. memory is 16.0 GB. [2021-02-16 17:19:50,278 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 316.7 MB. Free memory was 287.2 MB in the beginning and 287.1 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 17:19:50,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.47 ms. Allocated memory is still 316.7 MB. Free memory was 289.0 MB in the beginning and 289.7 MB in the end (delta: -668.5 kB). Peak memory consumption was 28.0 MB. Max. memory is 16.0 GB. [2021-02-16 17:19:50,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.85 ms. Allocated memory is still 316.7 MB. Free memory was 289.7 MB in the beginning and 287.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-16 17:19:50,280 INFO L168 Benchmark]: Boogie Preprocessor took 28.86 ms. Allocated memory is still 316.7 MB. Free memory was 287.8 MB in the beginning and 286.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 17:19:50,281 INFO L168 Benchmark]: RCFGBuilder took 613.28 ms. Allocated memory is still 316.7 MB. Free memory was 286.7 MB in the beginning and 262.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-02-16 17:19:50,282 INFO L168 Benchmark]: TraceAbstraction took 4929.23 ms. Allocated memory was 316.7 MB in the beginning and 826.3 MB in the end (delta: 509.6 MB). Free memory was 261.6 MB in the beginning and 739.2 MB in the end (delta: -477.6 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.0 GB. [2021-02-16 17:19:50,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 316.7 MB. Free memory was 287.2 MB in the beginning and 287.1 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 795.47 ms. Allocated memory is still 316.7 MB. Free memory was 289.0 MB in the beginning and 289.7 MB in the end (delta: -668.5 kB). Peak memory consumption was 28.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.85 ms. Allocated memory is still 316.7 MB. Free memory was 289.7 MB in the beginning and 287.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.86 ms. Allocated memory is still 316.7 MB. Free memory was 287.8 MB in the beginning and 286.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 613.28 ms. Allocated memory is still 316.7 MB. Free memory was 286.7 MB in the beginning and 262.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4929.23 ms. Allocated memory was 316.7 MB in the beginning and 826.3 MB in the end (delta: 509.6 MB). Free memory was 261.6 MB in the beginning and 739.2 MB in the end (delta: -477.6 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 442 SDtfs, 818 SDslu, 1588 SDs, 0 SdLazy, 157 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8819occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 974 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 38570 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...