/usr/bin/java -Xmx16000000000 -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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:09:26,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:09:26,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:09:26,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:09:26,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:09:26,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:09:26,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:09:26,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:09:26,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:09:26,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:09:26,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:09:26,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:09:26,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:09:26,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:09:26,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:09:26,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:09:26,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:09:26,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:09:26,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:09:26,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:09:26,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:09:26,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:09:26,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:09:26,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:09:26,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:09:26,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:09:26,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:09:26,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:09:26,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:09:26,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:09:26,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:09:26,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:09:26,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:09:26,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:09:26,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:09:26,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:09:26,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:09:26,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:09:26,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:09:26,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:09:26,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:09:26,464 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-SemanticLbe.epf [2020-10-15 22:09:26,487 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:09:26,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:09:26,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:09:26,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:09:26,489 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:09:26,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:09:26,489 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:09:26,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:09:26,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:09:26,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:09:26,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:09:26,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:09:26,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:09:26,491 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:09:26,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:09:26,491 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:09:26,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:09:26,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:09:26,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:09:26,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:09:26,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:09:26,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:09:26,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:09:26,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:09:26,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:09:26,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:09:26,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:09:26,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:09:26,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:09:26,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:09:26,836 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:09:26,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:09:26,841 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:09:26,841 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:09:26,842 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-10-15 22:09:26,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc5e978a6/ebfd8883c316499eb466a9786721dc25/FLAG4a56af670 [2020-10-15 22:09:27,473 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:09:27,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-10-15 22:09:27,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc5e978a6/ebfd8883c316499eb466a9786721dc25/FLAG4a56af670 [2020-10-15 22:09:27,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc5e978a6/ebfd8883c316499eb466a9786721dc25 [2020-10-15 22:09:27,773 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:09:27,775 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:09:27,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:09:27,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:09:27,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:09:27,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:09:27" (1/1) ... [2020-10-15 22:09:27,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8fdbcaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:27, skipping insertion in model container [2020-10-15 22:09:27,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:09:27" (1/1) ... [2020-10-15 22:09:27,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:09:27,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:09:28,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:09:28,388 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:09:28,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:09:28,557 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:09:28,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:28 WrapperNode [2020-10-15 22:09:28,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:09:28,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:09:28,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:09:28,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:09:28,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:28" (1/1) ... [2020-10-15 22:09:28,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:28" (1/1) ... [2020-10-15 22:09:28,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:09:28,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:09:28,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:09:28,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:09:28,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:28" (1/1) ... [2020-10-15 22:09:28,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:28" (1/1) ... [2020-10-15 22:09:28,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:28" (1/1) ... [2020-10-15 22:09:28,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:28" (1/1) ... [2020-10-15 22:09:28,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:28" (1/1) ... [2020-10-15 22:09:28,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:28" (1/1) ... [2020-10-15 22:09:28,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:28" (1/1) ... [2020-10-15 22:09:28,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:09:28,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:09:28,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:09:28,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:09:28,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:28" (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 [2020-10-15 22:09:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:09:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:09:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:09:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:09:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:09:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:09:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:09:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:09:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:09:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:09:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:09:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:09:28,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:09:28,703 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:09:29,063 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:09:29,064 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:09:29,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:09:29 BoogieIcfgContainer [2020-10-15 22:09:29,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:09:29,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:09:29,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:09:29,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:09:29,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:09:27" (1/3) ... [2020-10-15 22:09:29,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e2137c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:09:29, skipping insertion in model container [2020-10-15 22:09:29,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:28" (2/3) ... [2020-10-15 22:09:29,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e2137c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:09:29, skipping insertion in model container [2020-10-15 22:09:29,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:09:29" (3/3) ... [2020-10-15 22:09:29,075 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2020-10-15 22:09:29,087 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:09:29,087 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:09:29,096 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:09:29,097 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:09:29,124 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,124 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,125 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,127 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,128 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,128 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,129 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,130 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,132 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,132 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,132 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,132 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,144 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,145 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,145 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,145 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,160 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,161 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,165 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,165 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:29,184 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:09:29,206 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:09:29,207 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:09:29,207 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:09:29,207 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:09:29,207 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:09:29,207 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:09:29,208 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:09:29,208 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:09:29,222 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:09:29,225 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-15 22:09:29,228 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-15 22:09:29,230 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-15 22:09:29,278 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-15 22:09:29,279 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:09:29,284 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 22:09:29,288 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 22:09:30,622 INFO L132 LiptonReduction]: Checked pairs total: 2579 [2020-10-15 22:09:30,622 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-15 22:09:30,630 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-15 22:09:30,659 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-15 22:09:30,661 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-15 22:09:30,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:09:30,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:30,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:30,671 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:30,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:30,677 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-10-15 22:09:30,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:30,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464892527] [2020-10-15 22:09:30,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:30,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464892527] [2020-10-15 22:09:30,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:30,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:09:30,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891645549] [2020-10-15 22:09:30,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 22:09:30,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:30,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 22:09:30,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:09:30,870 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-15 22:09:30,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:30,904 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-15 22:09:30,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 22:09:30,906 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-15 22:09:30,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:30,924 INFO L225 Difference]: With dead ends: 362 [2020-10-15 22:09:30,925 INFO L226 Difference]: Without dead ends: 298 [2020-10-15 22:09:30,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:09:30,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-15 22:09:31,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-15 22:09:31,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-15 22:09:31,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-15 22:09:31,016 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-15 22:09:31,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:31,018 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-15 22:09:31,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 22:09:31,018 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-15 22:09:31,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:09:31,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:31,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:31,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:09:31,021 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:31,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:31,021 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-10-15 22:09:31,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:31,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917125369] [2020-10-15 22:09:31,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:31,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917125369] [2020-10-15 22:09:31,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:31,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:09:31,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005946791] [2020-10-15 22:09:31,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:09:31,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:31,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:09:31,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:09:31,156 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-15 22:09:31,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:31,194 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-15 22:09:31,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:09:31,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 22:09:31,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:31,199 INFO L225 Difference]: With dead ends: 330 [2020-10-15 22:09:31,199 INFO L226 Difference]: Without dead ends: 266 [2020-10-15 22:09:31,200 INFO L677 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 [2020-10-15 22:09:31,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-15 22:09:31,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-15 22:09:31,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-15 22:09:31,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-15 22:09:31,222 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-15 22:09:31,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:31,222 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-15 22:09:31,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:09:31,223 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-15 22:09:31,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:09:31,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:31,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:31,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:09:31,225 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:31,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:31,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-10-15 22:09:31,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:31,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958356826] [2020-10-15 22:09:31,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:31,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:31,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958356826] [2020-10-15 22:09:31,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:31,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:09:31,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728280736] [2020-10-15 22:09:31,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:09:31,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:31,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:09:31,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:09:31,347 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-15 22:09:31,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:31,424 INFO L93 Difference]: Finished difference Result 326 states and 882 transitions. [2020-10-15 22:09:31,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:09:31,424 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 22:09:31,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:31,427 INFO L225 Difference]: With dead ends: 326 [2020-10-15 22:09:31,427 INFO L226 Difference]: Without dead ends: 158 [2020-10-15 22:09:31,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:09:31,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-15 22:09:31,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-15 22:09:31,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-15 22:09:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 396 transitions. [2020-10-15 22:09:31,441 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 396 transitions. Word has length 10 [2020-10-15 22:09:31,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:31,441 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 396 transitions. [2020-10-15 22:09:31,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:09:31,442 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 396 transitions. [2020-10-15 22:09:31,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:09:31,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:31,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:31,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:09:31,445 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:31,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:31,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1670897012, now seen corresponding path program 1 times [2020-10-15 22:09:31,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:31,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283964915] [2020-10-15 22:09:31,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:31,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:31,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283964915] [2020-10-15 22:09:31,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:31,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:09:31,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127688288] [2020-10-15 22:09:31,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:09:31,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:31,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:09:31,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:09:31,528 INFO L87 Difference]: Start difference. First operand 158 states and 396 transitions. Second operand 5 states. [2020-10-15 22:09:31,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:31,582 INFO L93 Difference]: Finished difference Result 194 states and 470 transitions. [2020-10-15 22:09:31,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:09:31,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-15 22:09:31,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:31,584 INFO L225 Difference]: With dead ends: 194 [2020-10-15 22:09:31,584 INFO L226 Difference]: Without dead ends: 74 [2020-10-15 22:09:31,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:09:31,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-15 22:09:31,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-15 22:09:31,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-15 22:09:31,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-10-15 22:09:31,590 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 12 [2020-10-15 22:09:31,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:31,590 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-10-15 22:09:31,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:09:31,591 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-10-15 22:09:31,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:09:31,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:31,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:31,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:09:31,592 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:31,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:31,593 INFO L82 PathProgramCache]: Analyzing trace with hash -2118870046, now seen corresponding path program 1 times [2020-10-15 22:09:31,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:31,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754322680] [2020-10-15 22:09:31,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:31,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:31,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754322680] [2020-10-15 22:09:31,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:31,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:09:31,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778009322] [2020-10-15 22:09:31,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:09:31,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:31,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:09:31,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:09:31,689 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 5 states. [2020-10-15 22:09:31,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:31,728 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-10-15 22:09:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:09:31,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 22:09:31,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:31,729 INFO L225 Difference]: With dead ends: 62 [2020-10-15 22:09:31,730 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:09:31,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:09:31,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:09:31,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:09:31,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:09:31,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:09:31,731 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-15 22:09:31,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:31,732 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:09:31,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:09:31,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:09:31,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:09:31,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:09:31,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:09:31 BasicIcfg [2020-10-15 22:09:31,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:09:31,739 INFO L168 Benchmark]: Toolchain (without parser) took 3963.71 ms. Allocated memory was 249.6 MB in the beginning and 371.7 MB in the end (delta: 122.2 MB). Free memory was 204.9 MB in the beginning and 301.2 MB in the end (delta: -96.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:31,740 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 249.6 MB. Free memory is still 225.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:09:31,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.41 ms. Allocated memory was 249.6 MB in the beginning and 311.4 MB in the end (delta: 61.9 MB). Free memory was 204.9 MB in the beginning and 264.5 MB in the end (delta: -59.6 MB). Peak memory consumption was 30.0 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:31,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.15 ms. Allocated memory is still 311.4 MB. Free memory was 264.5 MB in the beginning and 262.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:31,742 INFO L168 Benchmark]: Boogie Preprocessor took 28.52 ms. Allocated memory is still 311.4 MB. Free memory is still 262.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:09:31,743 INFO L168 Benchmark]: RCFGBuilder took 430.92 ms. Allocated memory is still 311.4 MB. Free memory was 262.0 MB in the beginning and 237.6 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:31,744 INFO L168 Benchmark]: TraceAbstraction took 2668.77 ms. Allocated memory was 311.4 MB in the beginning and 371.7 MB in the end (delta: 60.3 MB). Free memory was 237.6 MB in the beginning and 301.2 MB in the end (delta: -63.5 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:09:31,748 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 249.6 MB. Free memory is still 225.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 783.41 ms. Allocated memory was 249.6 MB in the beginning and 311.4 MB in the end (delta: 61.9 MB). Free memory was 204.9 MB in the beginning and 264.5 MB in the end (delta: -59.6 MB). Peak memory consumption was 30.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.15 ms. Allocated memory is still 311.4 MB. Free memory was 264.5 MB in the beginning and 262.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.52 ms. Allocated memory is still 311.4 MB. Free memory is still 262.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 430.92 ms. Allocated memory is still 311.4 MB. Free memory was 262.0 MB in the beginning and 237.6 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2668.77 ms. Allocated memory was 311.4 MB in the beginning and 371.7 MB in the end (delta: 60.3 MB). Free memory was 237.6 MB in the beginning and 301.2 MB in the end (delta: -63.5 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 879 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 81 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 79 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2579 MoverChecksTotal - PositiveResult [Line: 7]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 110 SDtfs, 125 SDslu, 139 SDs, 0 SdLazy, 34 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...