/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-wmm/safe036_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 19:59:33,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 19:59:33,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 19:59:33,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 19:59:33,295 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 [2021-06-05 19:59:33,314 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 19:59:33,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 19:59:33,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 19:59:33,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 19:59:33,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 19:59:33,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 19:59:33,316 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 19:59:33,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 19:59:33,316 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 19:59:33,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 19:59:33,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 19:59:33,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 19:59:33,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 19:59:33,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 19:59:33,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 19:59:33,317 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 19:59:33,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 19:59:33,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 19:59:33,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 19:59:33,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 19:59:33,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 19:59:33,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 19:59:33,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 19:59:33,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 19:59:33,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 19:59:33,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 19:59:33,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 19:59:33,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 19:59:33,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 19:59:33,319 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 19:59:33,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 19:59:33,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 19:59:33,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 19:59:33,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 19:59:33,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 19:59:33,685 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 19:59:33,685 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 19:59:33,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2021-06-05 19:59:33,752 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/236c04669/b83d86c398c24e509887dad10f16dd44/FLAGaafb34374 [2021-06-05 19:59:34,306 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 19:59:34,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2021-06-05 19:59:34,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/236c04669/b83d86c398c24e509887dad10f16dd44/FLAGaafb34374 [2021-06-05 19:59:34,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/236c04669/b83d86c398c24e509887dad10f16dd44 [2021-06-05 19:59:34,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 19:59:34,732 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 19:59:34,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 19:59:34,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 19:59:34,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 19:59:34,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:59:34" (1/1) ... [2021-06-05 19:59:34,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bf40023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:34, skipping insertion in model container [2021-06-05 19:59:34,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:59:34" (1/1) ... [2021-06-05 19:59:34,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 19:59:34,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 19:59:34,962 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i[950,963] [2021-06-05 19:59:35,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:59:35,156 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 19:59:35,166 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i[950,963] [2021-06-05 19:59:35,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:59:35,268 INFO L208 MainTranslator]: Completed translation [2021-06-05 19:59:35,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:35 WrapperNode [2021-06-05 19:59:35,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 19:59:35,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 19:59:35,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 19:59:35,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 19:59:35,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:35" (1/1) ... [2021-06-05 19:59:35,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:35" (1/1) ... [2021-06-05 19:59:35,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 19:59:35,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 19:59:35,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 19:59:35,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 19:59:35,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:35" (1/1) ... [2021-06-05 19:59:35,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:35" (1/1) ... [2021-06-05 19:59:35,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:35" (1/1) ... [2021-06-05 19:59:35,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:35" (1/1) ... [2021-06-05 19:59:35,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:35" (1/1) ... [2021-06-05 19:59:35,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:35" (1/1) ... [2021-06-05 19:59:35,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:35" (1/1) ... [2021-06-05 19:59:35,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 19:59:35,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 19:59:35,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 19:59:35,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 19:59:35,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:35" (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 [2021-06-05 19:59:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 19:59:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 19:59:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 19:59:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 19:59:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 19:59:35,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 19:59:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 19:59:35,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 19:59:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 19:59:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 19:59:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 19:59:35,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 19:59:35,444 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 19:59:35,814 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 19:59:35,815 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 19:59:35,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:59:35 BoogieIcfgContainer [2021-06-05 19:59:35,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 19:59:35,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 19:59:35,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 19:59:35,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 19:59:35,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 07:59:34" (1/3) ... [2021-06-05 19:59:35,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adbc05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:59:35, skipping insertion in model container [2021-06-05 19:59:35,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:59:35" (2/3) ... [2021-06-05 19:59:35,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adbc05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:59:35, skipping insertion in model container [2021-06-05 19:59:35,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:59:35" (3/3) ... [2021-06-05 19:59:35,823 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_pso.oepc.i [2021-06-05 19:59:35,829 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 19:59:35,829 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 19:59:35,829 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 19:59:35,830 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 19:59:35,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,861 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,861 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,861 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,866 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,866 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,866 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,866 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,871 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,871 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:59:35,877 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 19:59:35,896 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 19:59:35,926 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 19:59:35,926 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 19:59:35,926 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 19:59:35,926 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 19:59:35,926 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 19:59:35,926 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 19:59:35,926 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 19:59:35,926 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 19:59:35,936 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 67 transitions, 144 flow [2021-06-05 19:59:36,001 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 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) [2021-06-05 19:59:36,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 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) [2021-06-05 19:59:36,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-05 19:59:36,034 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:59:36,035 INFO L554 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] [2021-06-05 19:59:36,035 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:59:36,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:59:36,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1835842458, now seen corresponding path program 1 times [2021-06-05 19:59:36,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:59:36,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768082092] [2021-06-05 19:59:36,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:59:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:59:36,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:59:36,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:59:36,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768082092] [2021-06-05 19:59:36,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768082092] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:59:36,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:59:36,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 19:59:36,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315692246] [2021-06-05 19:59:36,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 19:59:36,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:59:36,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 19:59:36,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 19:59:36,402 INFO L87 Difference]: Start difference. First operand has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-06-05 19:59:36,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:59:36,561 INFO L93 Difference]: Finished difference Result 1122 states and 2794 transitions. [2021-06-05 19:59:36,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:59:36,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 41 [2021-06-05 19:59:36,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:59:36,583 INFO L225 Difference]: With dead ends: 1122 [2021-06-05 19:59:36,583 INFO L226 Difference]: Without dead ends: 580 [2021-06-05 19:59:36,584 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 115.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:59:36,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2021-06-05 19:59:36,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2021-06-05 19:59:36,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 579 states have (on average 2.412780656303972) internal successors, (1397), 579 states have internal predecessors, (1397), 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) [2021-06-05 19:59:36,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1397 transitions. [2021-06-05 19:59:36,648 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1397 transitions. Word has length 41 [2021-06-05 19:59:36,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:59:36,658 INFO L482 AbstractCegarLoop]: Abstraction has 580 states and 1397 transitions. [2021-06-05 19:59:36,659 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-06-05 19:59:36,659 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1397 transitions. [2021-06-05 19:59:36,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 19:59:36,661 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:59:36,661 INFO L554 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] [2021-06-05 19:59:36,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 19:59:36,662 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:59:36,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:59:36,666 INFO L82 PathProgramCache]: Analyzing trace with hash 720801784, now seen corresponding path program 1 times [2021-06-05 19:59:36,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:59:36,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050127878] [2021-06-05 19:59:36,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:59:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:59:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:59:36,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:59:36,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050127878] [2021-06-05 19:59:36,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050127878] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:59:36,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:59:36,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:59:36,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717429901] [2021-06-05 19:59:36,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:59:36,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:59:36,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:59:36,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:59:36,889 INFO L87 Difference]: Start difference. First operand 580 states and 1397 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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) [2021-06-05 19:59:37,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:59:37,041 INFO L93 Difference]: Finished difference Result 448 states and 1024 transitions. [2021-06-05 19:59:37,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:59:37,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 [2021-06-05 19:59:37,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:59:37,043 INFO L225 Difference]: With dead ends: 448 [2021-06-05 19:59:37,043 INFO L226 Difference]: Without dead ends: 316 [2021-06-05 19:59:37,045 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 138.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 19:59:37,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-06-05 19:59:37,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-06-05 19:59:37,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 315 states have (on average 2.2) internal successors, (693), 315 states have internal predecessors, (693), 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) [2021-06-05 19:59:37,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 693 transitions. [2021-06-05 19:59:37,069 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 693 transitions. Word has length 45 [2021-06-05 19:59:37,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:59:37,070 INFO L482 AbstractCegarLoop]: Abstraction has 316 states and 693 transitions. [2021-06-05 19:59:37,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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) [2021-06-05 19:59:37,070 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 693 transitions. [2021-06-05 19:59:37,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 19:59:37,071 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:59:37,071 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:59:37,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 19:59:37,072 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:59:37,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:59:37,072 INFO L82 PathProgramCache]: Analyzing trace with hash -753432138, now seen corresponding path program 1 times [2021-06-05 19:59:37,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:59:37,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056719485] [2021-06-05 19:59:37,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:59:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:59:37,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:59:37,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:59:37,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056719485] [2021-06-05 19:59:37,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056719485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:59:37,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:59:37,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:59:37,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493810905] [2021-06-05 19:59:37,195 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:59:37,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:59:37,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:59:37,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:59:37,196 INFO L87 Difference]: Start difference. First operand 316 states and 693 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:59:37,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:59:37,295 INFO L93 Difference]: Finished difference Result 457 states and 1015 transitions. [2021-06-05 19:59:37,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 19:59:37,297 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-05 19:59:37,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:59:37,299 INFO L225 Difference]: With dead ends: 457 [2021-06-05 19:59:37,299 INFO L226 Difference]: Without dead ends: 271 [2021-06-05 19:59:37,299 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 114.7ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:59:37,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-06-05 19:59:37,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2021-06-05 19:59:37,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 2.1222222222222222) internal successors, (573), 270 states have internal predecessors, (573), 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) [2021-06-05 19:59:37,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 573 transitions. [2021-06-05 19:59:37,310 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 573 transitions. Word has length 49 [2021-06-05 19:59:37,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:59:37,311 INFO L482 AbstractCegarLoop]: Abstraction has 271 states and 573 transitions. [2021-06-05 19:59:37,311 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:59:37,311 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 573 transitions. [2021-06-05 19:59:37,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 19:59:37,314 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:59:37,314 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:59:37,314 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 19:59:37,314 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:59:37,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:59:37,316 INFO L82 PathProgramCache]: Analyzing trace with hash -967070400, now seen corresponding path program 2 times [2021-06-05 19:59:37,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:59:37,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258514781] [2021-06-05 19:59:37,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:59:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:59:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:59:37,448 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:59:37,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258514781] [2021-06-05 19:59:37,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258514781] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:59:37,448 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:59:37,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:59:37,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474251431] [2021-06-05 19:59:37,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:59:37,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:59:37,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:59:37,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:59:37,450 INFO L87 Difference]: Start difference. First operand 271 states and 573 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:59:37,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:59:37,535 INFO L93 Difference]: Finished difference Result 253 states and 531 transitions. [2021-06-05 19:59:37,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 19:59:37,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-05 19:59:37,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:59:37,536 INFO L225 Difference]: With dead ends: 253 [2021-06-05 19:59:37,536 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 19:59:37,536 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 113.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:59:37,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 19:59:37,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 19:59:37,537 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) [2021-06-05 19:59:37,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 19:59:37,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2021-06-05 19:59:37,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:59:37,537 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 19:59:37,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:59:37,537 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 19:59:37,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 19:59:37,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 19:59:37,539 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 19:59:37,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 07:59:37 BasicIcfg [2021-06-05 19:59:37,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 19:59:37,543 INFO L168 Benchmark]: Toolchain (without parser) took 2810.41 ms. Allocated memory is still 390.1 MB. Free memory was 354.4 MB in the beginning and 157.9 MB in the end (delta: 196.5 MB). Peak memory consumption was 197.3 MB. Max. memory is 16.0 GB. [2021-06-05 19:59:37,543 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 390.1 MB. Free memory is still 373.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 19:59:37,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.39 ms. Allocated memory is still 390.1 MB. Free memory was 354.2 MB in the beginning and 351.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.0 GB. [2021-06-05 19:59:37,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.03 ms. Allocated memory is still 390.1 MB. Free memory was 351.1 MB in the beginning and 348.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:59:37,544 INFO L168 Benchmark]: Boogie Preprocessor took 35.93 ms. Allocated memory is still 390.1 MB. Free memory was 348.8 MB in the beginning and 347.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 19:59:37,544 INFO L168 Benchmark]: RCFGBuilder took 453.81 ms. Allocated memory is still 390.1 MB. Free memory was 347.7 MB in the beginning and 325.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:59:37,545 INFO L168 Benchmark]: TraceAbstraction took 1723.46 ms. Allocated memory is still 390.1 MB. Free memory was 325.7 MB in the beginning and 157.9 MB in the end (delta: 167.8 MB). Peak memory consumption was 167.8 MB. Max. memory is 16.0 GB. [2021-06-05 19:59:37,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 390.1 MB. Free memory is still 373.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 534.39 ms. Allocated memory is still 390.1 MB. Free memory was 354.2 MB in the beginning and 351.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.03 ms. Allocated memory is still 390.1 MB. Free memory was 351.1 MB in the beginning and 348.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 35.93 ms. Allocated memory is still 390.1 MB. Free memory was 348.8 MB in the beginning and 347.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 453.81 ms. Allocated memory is still 390.1 MB. Free memory was 347.7 MB in the beginning and 325.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1723.46 ms. Allocated memory is still 390.1 MB. Free memory was 325.7 MB in the beginning and 157.9 MB in the end (delta: 167.8 MB). Peak memory consumption was 167.8 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1615.4ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 39.3ms, AutomataDifference: 543.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 74.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 293 SDtfs, 361 SDslu, 1022 SDs, 0 SdLazy, 118 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 482.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 88.9ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.6ms SsaConstructionTime, 127.1ms SatisfiabilityAnalysisTime, 552.4ms InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 496 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...