/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:11:35,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:11:35,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:11:35,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:11:35,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:11:35,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:11:35,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:11:35,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:11:35,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:11:35,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:11:35,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:11:35,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:11:35,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:11:35,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:11:35,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:11:35,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:11:35,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:11:35,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:11:35,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:11:35,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:11:35,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:11:35,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:11:35,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:11:35,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:11:35,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 15:11:35,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:11:35,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:11:35,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:11:35,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:11:35,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:11:35,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:11:35,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:11:35,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:11:35,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:11:35,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:11:35,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:11:35,498 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 [2020-10-11 15:11:35,534 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:11:35,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:11:35,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:11:35,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:11:35,538 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:11:35,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:11:35,538 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:11:35,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:11:35,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:11:35,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:11:35,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:11:35,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:11:35,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:11:35,539 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:11:35,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:11:35,540 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:11:35,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:11:35,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:11:35,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:11:35,541 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:11:35,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:11:35,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:11:35,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:11:35,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:11:35,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:11:35,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:11:35,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:11:35,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:11:35,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:11:35,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:11:35,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:11:35,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:11:35,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:11:35,843 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:11:35,843 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:11:35,844 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i [2020-10-11 15:11:35,902 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647adf7f2/eba04806ec9a423285803c365aca7269/FLAGaf9eb3dd5 [2020-10-11 15:11:36,410 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:11:36,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i [2020-10-11 15:11:36,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647adf7f2/eba04806ec9a423285803c365aca7269/FLAGaf9eb3dd5 [2020-10-11 15:11:36,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647adf7f2/eba04806ec9a423285803c365aca7269 [2020-10-11 15:11:36,676 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:11:36,678 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:11:36,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:11:36,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:11:36,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:11:36,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:11:36" (1/1) ... [2020-10-11 15:11:36,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10603fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36, skipping insertion in model container [2020-10-11 15:11:36,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:11:36" (1/1) ... [2020-10-11 15:11:36,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:11:36,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:11:37,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:11:37,311 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:11:37,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:11:37,468 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:11:37,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:37 WrapperNode [2020-10-11 15:11:37,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:11:37,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:11:37,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:11:37,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:11:37,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:37" (1/1) ... [2020-10-11 15:11:37,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:37" (1/1) ... [2020-10-11 15:11:37,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:11:37,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:11:37,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:11:37,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:11:37,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:37" (1/1) ... [2020-10-11 15:11:37,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:37" (1/1) ... [2020-10-11 15:11:37,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:37" (1/1) ... [2020-10-11 15:11:37,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:37" (1/1) ... [2020-10-11 15:11:37,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:37" (1/1) ... [2020-10-11 15:11:37,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:37" (1/1) ... [2020-10-11 15:11:37,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:37" (1/1) ... [2020-10-11 15:11:37,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:11:37,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:11:37,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:11:37,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:11:37,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:37" (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 [2020-10-11 15:11:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:11:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:11:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:11:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:11:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:11:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:11:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:11:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:11:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:11:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:11:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:11:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:11:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:11:37,622 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:11:37,934 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:11:37,935 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:11:37,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:11:37 BoogieIcfgContainer [2020-10-11 15:11:37,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:11:37,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:11:37,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:11:37,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:11:37,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:11:36" (1/3) ... [2020-10-11 15:11:37,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185e1239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:11:37, skipping insertion in model container [2020-10-11 15:11:37,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:37" (2/3) ... [2020-10-11 15:11:37,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185e1239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:11:37, skipping insertion in model container [2020-10-11 15:11:37,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:11:37" (3/3) ... [2020-10-11 15:11:37,946 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_rmo.opt.i [2020-10-11 15:11:37,958 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:11:37,958 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:11:37,966 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:11:37,967 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:11:38,000 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,000 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,001 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,001 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,003 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,003 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,005 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,005 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,010 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,010 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,015 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,016 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,016 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,020 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,020 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:38,040 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:11:38,062 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:11:38,062 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:11:38,062 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:11:38,062 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:11:38,062 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:11:38,063 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:11:38,063 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:11:38,063 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:11:38,078 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:11:38,081 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:11:38,084 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:11:38,087 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-11 15:11:38,134 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-11 15:11:38,134 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:11:38,139 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-11 15:11:38,142 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-11 15:11:39,745 INFO L132 LiptonReduction]: Checked pairs total: 2520 [2020-10-11 15:11:39,745 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-11 15:11:39,752 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-11 15:11:39,788 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-11 15:11:39,791 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-11 15:11:39,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:11:39,799 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:39,800 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:39,800 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:39,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:39,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-10-11 15:11:39,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:39,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083452436] [2020-10-11 15:11:39,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:40,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:40,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083452436] [2020-10-11 15:11:40,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:40,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:11:40,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291208566] [2020-10-11 15:11:40,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:11:40,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:40,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:11:40,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:40,095 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-11 15:11:40,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,138 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-10-11 15:11:40,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:11:40,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-11 15:11:40,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,159 INFO L225 Difference]: With dead ends: 266 [2020-10-11 15:11:40,159 INFO L226 Difference]: Without dead ends: 202 [2020-10-11 15:11:40,160 INFO L673 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 [2020-10-11 15:11:40,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-11 15:11:40,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-11 15:11:40,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-11 15:11:40,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-11 15:11:40,235 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-10-11 15:11:40,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,239 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-11 15:11:40,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:11:40,239 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-11 15:11:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:11:40,241 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:40,241 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:40,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:11:40,241 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:40,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:40,242 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-10-11 15:11:40,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:40,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106635519] [2020-10-11 15:11:40,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:40,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106635519] [2020-10-11 15:11:40,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:40,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:11:40,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392126068] [2020-10-11 15:11:40,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:11:40,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:40,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:11:40,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:40,330 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-11 15:11:40,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,352 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-10-11 15:11:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:11:40,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-11 15:11:40,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,355 INFO L225 Difference]: With dead ends: 266 [2020-10-11 15:11:40,355 INFO L226 Difference]: Without dead ends: 140 [2020-10-11 15:11:40,356 INFO L673 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 [2020-10-11 15:11:40,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-11 15:11:40,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-11 15:11:40,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-11 15:11:40,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-10-11 15:11:40,371 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-10-11 15:11:40,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,371 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-10-11 15:11:40,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:11:40,372 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-10-11 15:11:40,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:11:40,373 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:40,373 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:40,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:11:40,373 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:40,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:40,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-10-11 15:11:40,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:40,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424786372] [2020-10-11 15:11:40,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:40,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:40,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424786372] [2020-10-11 15:11:40,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:40,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:11:40,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524819917] [2020-10-11 15:11:40,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:40,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:40,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:40,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:40,526 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-10-11 15:11:40,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,564 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-10-11 15:11:40,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:11:40,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 15:11:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,566 INFO L225 Difference]: With dead ends: 165 [2020-10-11 15:11:40,566 INFO L226 Difference]: Without dead ends: 113 [2020-10-11 15:11:40,566 INFO L673 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 [2020-10-11 15:11:40,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-11 15:11:40,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-10-11 15:11:40,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-11 15:11:40,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-10-11 15:11:40,576 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-10-11 15:11:40,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,577 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-10-11 15:11:40,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:40,577 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-10-11 15:11:40,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:11:40,578 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:40,578 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:40,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:11:40,579 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:40,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:40,579 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-10-11 15:11:40,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:40,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393614383] [2020-10-11 15:11:40,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:40,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:40,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393614383] [2020-10-11 15:11:40,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:40,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:40,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016407472] [2020-10-11 15:11:40,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:11:40,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:40,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:11:40,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:40,671 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-10-11 15:11:40,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,720 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-10-11 15:11:40,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:11:40,720 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-11 15:11:40,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,722 INFO L225 Difference]: With dead ends: 111 [2020-10-11 15:11:40,722 INFO L226 Difference]: Without dead ends: 80 [2020-10-11 15:11:40,722 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:11:40,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-11 15:11:40,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-11 15:11:40,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-11 15:11:40,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-10-11 15:11:40,729 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-10-11 15:11:40,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,729 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-10-11 15:11:40,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:11:40,729 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-10-11 15:11:40,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:11:40,730 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:40,730 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:40,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:11:40,731 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:40,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:40,731 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-10-11 15:11:40,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:40,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447942840] [2020-10-11 15:11:40,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:40,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:40,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447942840] [2020-10-11 15:11:40,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:40,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:11:40,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121113182] [2020-10-11 15:11:40,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:11:40,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:40,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:11:40,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:11:40,802 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-10-11 15:11:40,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,846 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-10-11 15:11:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:11:40,852 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-11 15:11:40,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,853 INFO L225 Difference]: With dead ends: 75 [2020-10-11 15:11:40,853 INFO L226 Difference]: Without dead ends: 66 [2020-10-11 15:11:40,854 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:11:40,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-11 15:11:40,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-11 15:11:40,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-11 15:11:40,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-10-11 15:11:40,859 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-10-11 15:11:40,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,860 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-10-11 15:11:40,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:11:40,860 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-10-11 15:11:40,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:11:40,861 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:40,861 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:40,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:11:40,862 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:40,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:40,862 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-10-11 15:11:40,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:40,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430324869] [2020-10-11 15:11:40,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:40,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:40,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430324869] [2020-10-11 15:11:40,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:40,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:40,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154983034] [2020-10-11 15:11:40,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:40,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:40,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:40,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:40,895 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-10-11 15:11:40,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,911 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-10-11 15:11:40,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:11:40,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:11:40,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,912 INFO L225 Difference]: With dead ends: 85 [2020-10-11 15:11:40,912 INFO L226 Difference]: Without dead ends: 48 [2020-10-11 15:11:40,912 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:40,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-11 15:11:40,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-11 15:11:40,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-11 15:11:40,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-10-11 15:11:40,916 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-10-11 15:11:40,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,916 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-10-11 15:11:40,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:40,916 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-10-11 15:11:40,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:11:40,917 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:40,917 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:40,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:11:40,918 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:40,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:40,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-10-11 15:11:40,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:40,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805255809] [2020-10-11 15:11:40,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:40,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:40,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805255809] [2020-10-11 15:11:40,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:40,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:40,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818293366] [2020-10-11 15:11:40,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:40,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:40,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:40,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:40,950 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-10-11 15:11:40,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,973 INFO L93 Difference]: Finished difference Result 73 states and 130 transitions. [2020-10-11 15:11:40,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:11:40,974 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:11:40,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,974 INFO L225 Difference]: With dead ends: 73 [2020-10-11 15:11:40,975 INFO L226 Difference]: Without dead ends: 42 [2020-10-11 15:11:40,975 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:40,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-11 15:11:40,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-11 15:11:40,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-11 15:11:40,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions. [2020-10-11 15:11:40,978 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 17 [2020-10-11 15:11:40,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,978 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 71 transitions. [2020-10-11 15:11:40,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:40,979 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2020-10-11 15:11:40,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:11:40,979 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:40,979 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:40,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:11:40,980 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:40,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:40,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1323635892, now seen corresponding path program 3 times [2020-10-11 15:11:40,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:40,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933494796] [2020-10-11 15:11:40,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:41,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:41,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933494796] [2020-10-11 15:11:41,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:41,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:41,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071736476] [2020-10-11 15:11:41,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:41,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:41,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:41,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:41,022 INFO L87 Difference]: Start difference. First operand 42 states and 71 transitions. Second operand 4 states. [2020-10-11 15:11:41,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:41,032 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions. [2020-10-11 15:11:41,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:11:41,033 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:11:41,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:41,033 INFO L225 Difference]: With dead ends: 41 [2020-10-11 15:11:41,033 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:11:41,034 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:41,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:11:41,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:11:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:11:41,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:11:41,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-11 15:11:41,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:41,035 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:11:41,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:41,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:11:41,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:11:41,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:11:41,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:11:41 BasicIcfg [2020-10-11 15:11:41,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:11:41,043 INFO L168 Benchmark]: Toolchain (without parser) took 4362.81 ms. Allocated memory was 253.8 MB in the beginning and 374.3 MB in the end (delta: 120.6 MB). Free memory was 209.5 MB in the beginning and 240.3 MB in the end (delta: -30.7 MB). Peak memory consumption was 89.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:41,043 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 253.8 MB. Free memory is still 230.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:11:41,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.00 ms. Allocated memory was 253.8 MB in the beginning and 320.9 MB in the end (delta: 67.1 MB). Free memory was 209.5 MB in the beginning and 273.5 MB in the end (delta: -63.9 MB). Peak memory consumption was 30.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:41,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.06 ms. Allocated memory is still 320.9 MB. Free memory is still 273.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:11:41,047 INFO L168 Benchmark]: Boogie Preprocessor took 28.54 ms. Allocated memory is still 320.9 MB. Free memory was 273.5 MB in the beginning and 270.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:41,048 INFO L168 Benchmark]: RCFGBuilder took 382.49 ms. Allocated memory is still 320.9 MB. Free memory was 270.9 MB in the beginning and 249.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:41,049 INFO L168 Benchmark]: TraceAbstraction took 3100.28 ms. Allocated memory was 320.9 MB in the beginning and 374.3 MB in the end (delta: 53.5 MB). Free memory was 246.5 MB in the beginning and 240.3 MB in the end (delta: 6.2 MB). Peak memory consumption was 59.6 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:41,053 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 253.8 MB. Free memory is still 230.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 790.00 ms. Allocated memory was 253.8 MB in the beginning and 320.9 MB in the end (delta: 67.1 MB). Free memory was 209.5 MB in the beginning and 273.5 MB in the end (delta: -63.9 MB). Peak memory consumption was 30.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 56.06 ms. Allocated memory is still 320.9 MB. Free memory is still 273.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.54 ms. Allocated memory is still 320.9 MB. Free memory was 273.5 MB in the beginning and 270.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 382.49 ms. Allocated memory is still 320.9 MB. Free memory was 270.9 MB in the beginning and 249.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3100.28 ms. Allocated memory was 320.9 MB in the beginning and 374.3 MB in the end (delta: 53.5 MB). Free memory was 246.5 MB in the beginning and 240.3 MB in the end (delta: 6.2 MB). Peak memory consumption was 59.6 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 837 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 63 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 2520 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 156 SDtfs, 123 SDslu, 193 SDs, 0 SdLazy, 117 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 3220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...