/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:22:37,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:22:37,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:22:37,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:22:37,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:22:37,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:22:37,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:22:37,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:22:37,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:22:37,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:22:37,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:22:37,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:22:37,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:22:37,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:22:37,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:22:37,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:22:37,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:22:37,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:22:37,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:22:37,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:22:37,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:22:37,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:22:37,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:22:37,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:22:37,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 14:22:37,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 14:22:37,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 14:22:37,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 14:22:37,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 14:22:37,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 14:22:37,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:22:37,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:22:37,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:22:37,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:22:37,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:22:37,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:22:37,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:22:37,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:22:37,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:22:37,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:22:37,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:22:37,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 14:22:37,686 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:22:37,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:22:37,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:22:37,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:22:37,688 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:22:37,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:22:37,688 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:22:37,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:22:37,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:22:37,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:22:37,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:22:37,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:22:37,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:22:37,689 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:22:37,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:22:37,690 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:22:37,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:22:37,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:22:37,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:22:37,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:22:37,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:22:37,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:22:37,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:22:37,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:22:37,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:22:37,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:22:37,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:22:37,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:22:37,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:22:37,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:22:37,952 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:22:37,965 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:22:37,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:22:37,971 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:22:37,971 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:22:37,972 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2019-12-18 14:22:38,047 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eef67368c/615687b3ab8d4d27ad2b2234ad61cc2e/FLAG3657b7966 [2019-12-18 14:22:38,604 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:22:38,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2019-12-18 14:22:38,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eef67368c/615687b3ab8d4d27ad2b2234ad61cc2e/FLAG3657b7966 [2019-12-18 14:22:38,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eef67368c/615687b3ab8d4d27ad2b2234ad61cc2e [2019-12-18 14:22:38,856 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:22:38,858 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:22:38,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:22:38,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:22:38,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:22:38,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:22:38" (1/1) ... [2019-12-18 14:22:38,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b4aef60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:38, skipping insertion in model container [2019-12-18 14:22:38,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:22:38" (1/1) ... [2019-12-18 14:22:38,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:22:38,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:22:39,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:22:39,472 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:22:39,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:22:39,608 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:22:39,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:39 WrapperNode [2019-12-18 14:22:39,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:22:39,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:22:39,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:22:39,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:22:39,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:39" (1/1) ... [2019-12-18 14:22:39,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:39" (1/1) ... [2019-12-18 14:22:39,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:22:39,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:22:39,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:22:39,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:22:39,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:39" (1/1) ... [2019-12-18 14:22:39,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:39" (1/1) ... [2019-12-18 14:22:39,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:39" (1/1) ... [2019-12-18 14:22:39,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:39" (1/1) ... [2019-12-18 14:22:39,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:39" (1/1) ... [2019-12-18 14:22:39,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:39" (1/1) ... [2019-12-18 14:22:39,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:39" (1/1) ... [2019-12-18 14:22:39,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:22:39,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:22:39,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:22:39,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:22:39,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:39" (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 [2019-12-18 14:22:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:22:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:22:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:22:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:22:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:22:39,755 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:22:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:22:39,755 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:22:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:22:39,755 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:22:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:22:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:22:39,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:22:39,758 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 14:22:40,107 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:22:40,107 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:22:40,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:22:40 BoogieIcfgContainer [2019-12-18 14:22:40,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:22:40,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:22:40,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:22:40,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:22:40,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:22:38" (1/3) ... [2019-12-18 14:22:40,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38de6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:22:40, skipping insertion in model container [2019-12-18 14:22:40,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:22:39" (2/3) ... [2019-12-18 14:22:40,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38de6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:22:40, skipping insertion in model container [2019-12-18 14:22:40,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:22:40" (3/3) ... [2019-12-18 14:22:40,117 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2019-12-18 14:22:40,127 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:22:40,128 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:22:40,136 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:22:40,137 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:22:40,166 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,166 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,167 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,167 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,168 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,168 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,168 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,169 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,169 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,169 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,169 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,170 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,170 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,170 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,171 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,171 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,171 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,171 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,175 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,176 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,176 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,176 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,182 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,183 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,183 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,183 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,186 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,187 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,187 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,187 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:22:40,208 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:22:40,226 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:22:40,226 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:22:40,227 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:22:40,227 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:22:40,227 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:22:40,227 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:22:40,227 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:22:40,227 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:22:40,238 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-18 14:22:40,240 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 14:22:40,279 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 14:22:40,279 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:22:40,287 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:22:40,292 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 14:22:40,309 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 14:22:40,309 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:22:40,311 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:22:40,313 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:22:40,314 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:22:41,934 INFO L206 etLargeBlockEncoding]: Checked pairs total: 501 [2019-12-18 14:22:41,934 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-18 14:22:41,938 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 14:22:41,950 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 14:22:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 14:22:41,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:22:41,961 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:22:41,962 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:22:41,962 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:22:41,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:22:41,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1273726136, now seen corresponding path program 1 times [2019-12-18 14:22:41,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:22:41,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563665567] [2019-12-18 14:22:41,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:22:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:22:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:22:42,190 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563665567] [2019-12-18 14:22:42,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:22:42,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:22:42,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97799775] [2019-12-18 14:22:42,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:22:42,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:22:42,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:22:42,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:22:42,212 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 14:22:42,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:22:42,261 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-18 14:22:42,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:22:42,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:22:42,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:22:42,295 INFO L225 Difference]: With dead ends: 52 [2019-12-18 14:22:42,296 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 14:22:42,300 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:22:42,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 14:22:42,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 14:22:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 14:22:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 14:22:42,350 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 14:22:42,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:22:42,352 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 14:22:42,352 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:22:42,352 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 14:22:42,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:22:42,354 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:22:42,354 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:22:42,355 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:22:42,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:22:42,355 INFO L82 PathProgramCache]: Analyzing trace with hash 724458, now seen corresponding path program 1 times [2019-12-18 14:22:42,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:22:42,356 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419090849] [2019-12-18 14:22:42,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:22:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:22:42,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:22:42,496 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419090849] [2019-12-18 14:22:42,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:22:42,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:22:42,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473698574] [2019-12-18 14:22:42,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:22:42,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:22:42,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:22:42,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:22:42,500 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 14:22:42,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:22:42,510 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-18 14:22:42,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:22:42,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 14:22:42,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:22:42,512 INFO L225 Difference]: With dead ends: 42 [2019-12-18 14:22:42,512 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 14:22:42,513 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:22:42,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 14:22:42,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-18 14:22:42,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:22:42,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-18 14:22:42,519 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-18 14:22:42,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:22:42,519 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-18 14:22:42,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:22:42,519 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-18 14:22:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:22:42,520 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:22:42,520 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:22:42,521 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:22:42,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:22:42,521 INFO L82 PathProgramCache]: Analyzing trace with hash 825365607, now seen corresponding path program 1 times [2019-12-18 14:22:42,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:22:42,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986760506] [2019-12-18 14:22:42,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:22:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:22:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:22:42,571 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986760506] [2019-12-18 14:22:42,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:22:42,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:22:42,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587091266] [2019-12-18 14:22:42,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:22:42,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:22:42,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:22:42,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:22:42,573 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-18 14:22:42,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:22:42,590 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2019-12-18 14:22:42,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:22:42,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 14:22:42,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:22:42,591 INFO L225 Difference]: With dead ends: 36 [2019-12-18 14:22:42,591 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 14:22:42,591 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:22:42,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 14:22:42,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 14:22:42,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 14:22:42,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-18 14:22:42,595 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 9 [2019-12-18 14:22:42,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:22:42,596 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-18 14:22:42,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:22:42,596 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-18 14:22:42,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:22:42,597 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:22:42,597 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:22:42,597 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:22:42,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:22:42,598 INFO L82 PathProgramCache]: Analyzing trace with hash -183428321, now seen corresponding path program 1 times [2019-12-18 14:22:42,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:22:42,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243893913] [2019-12-18 14:22:42,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:22:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:22:42,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:22:42,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243893913] [2019-12-18 14:22:42,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:22:42,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:22:42,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938707646] [2019-12-18 14:22:42,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:22:42,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:22:42,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:22:42,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:22:42,648 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 3 states. [2019-12-18 14:22:42,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:22:42,660 INFO L93 Difference]: Finished difference Result 27 states and 39 transitions. [2019-12-18 14:22:42,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:22:42,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 14:22:42,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:22:42,662 INFO L225 Difference]: With dead ends: 27 [2019-12-18 14:22:42,662 INFO L226 Difference]: Without dead ends: 21 [2019-12-18 14:22:42,662 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:22:42,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-18 14:22:42,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-18 14:22:42,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-18 14:22:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-18 14:22:42,666 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-18 14:22:42,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:22:42,667 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-18 14:22:42,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:22:42,668 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-18 14:22:42,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:22:42,668 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:22:42,668 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:22:42,669 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:22:42,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:22:42,671 INFO L82 PathProgramCache]: Analyzing trace with hash 527638481, now seen corresponding path program 1 times [2019-12-18 14:22:42,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:22:42,671 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167923893] [2019-12-18 14:22:42,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:22:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:22:42,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:22:42,724 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167923893] [2019-12-18 14:22:42,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:22:42,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:22:42,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645384357] [2019-12-18 14:22:42,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:22:42,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:22:42,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:22:42,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:22:42,726 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 4 states. [2019-12-18 14:22:42,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:22:42,743 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-18 14:22:42,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:22:42,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:22:42,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:22:42,744 INFO L225 Difference]: With dead ends: 20 [2019-12-18 14:22:42,744 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:22:42,745 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:22:42,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:22:42,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:22:42,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:22:42,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:22:42,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:22:42,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:22:42,746 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:22:42,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:22:42,746 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:22:42,746 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:22:42,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:22:42 BasicIcfg [2019-12-18 14:22:42,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:22:42,753 INFO L168 Benchmark]: Toolchain (without parser) took 3895.18 ms. Allocated memory was 136.8 MB in the beginning and 249.6 MB in the end (delta: 112.7 MB). Free memory was 99.5 MB in the beginning and 148.1 MB in the end (delta: -48.6 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. [2019-12-18 14:22:42,754 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 14:22:42,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.81 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 158.0 MB in the end (delta: -58.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-12-18 14:22:42,756 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.55 ms. Allocated memory is still 200.8 MB. Free memory was 158.0 MB in the beginning and 155.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:22:42,757 INFO L168 Benchmark]: Boogie Preprocessor took 27.33 ms. Allocated memory is still 200.8 MB. Free memory was 155.7 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 14:22:42,758 INFO L168 Benchmark]: RCFGBuilder took 417.40 ms. Allocated memory is still 200.8 MB. Free memory was 154.4 MB in the beginning and 133.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:22:42,759 INFO L168 Benchmark]: TraceAbstraction took 2640.70 ms. Allocated memory was 200.8 MB in the beginning and 249.6 MB in the end (delta: 48.8 MB). Free memory was 133.4 MB in the beginning and 148.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:22:42,764 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.81 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 158.0 MB in the end (delta: -58.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.55 ms. Allocated memory is still 200.8 MB. Free memory was 158.0 MB in the beginning and 155.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.33 ms. Allocated memory is still 200.8 MB. Free memory was 155.7 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 417.40 ms. Allocated memory is still 200.8 MB. Free memory was 154.4 MB in the beginning and 133.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2640.70 ms. Allocated memory was 200.8 MB in the beginning and 249.6 MB in the end (delta: 48.8 MB). Free memory was 133.4 MB in the beginning and 148.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 253 VarBasedMoverChecksPositive, 15 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 16 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 501 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 10 SDslu, 30 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 978 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...