/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:31:37,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:31:37,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:31:37,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:31:37,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:31:37,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:31:37,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:31:37,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:31:37,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:31:37,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:31:37,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:31:37,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:31:37,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:31:37,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:31:37,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:31:37,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:31:37,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:31:37,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:31:37,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:31:37,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:31:37,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:31:37,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:31:37,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:31:37,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:31:37,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 05:31:37,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:31:37,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:31:37,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:31:37,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:31:37,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:31:37,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:31:37,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:31:37,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:31:37,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:31:37,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:31:37,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:31:37,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2019-12-28 05:31:37,516 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:31:37,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:31:37,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:31:37,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:31:37,518 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:31:37,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:31:37,518 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:31:37,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:31:37,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:31:37,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:31:37,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:31:37,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:31:37,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:31:37,519 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:31:37,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:31:37,520 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:31:37,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:31:37,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:31:37,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:31:37,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:31:37,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:31:37,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:31:37,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:31:37,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:31:37,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:31:37,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:31:37,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:31:37,522 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:31:37,523 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:31:37,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:31:37,523 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:31:37,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:31:37,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:31:37,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:31:37,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:31:37,810 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:31:37,810 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:31:37,811 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_tso.opt.i [2019-12-28 05:31:37,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4109a811e/318120fccff942148467ed9c90c43725/FLAGf527fdff5 [2019-12-28 05:31:38,509 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:31:38,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_tso.opt.i [2019-12-28 05:31:38,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4109a811e/318120fccff942148467ed9c90c43725/FLAGf527fdff5 [2019-12-28 05:31:38,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4109a811e/318120fccff942148467ed9c90c43725 [2019-12-28 05:31:38,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:31:38,793 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:31:38,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:31:38,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:31:38,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:31:38,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:31:38" (1/1) ... [2019-12-28 05:31:38,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db1bd3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:38, skipping insertion in model container [2019-12-28 05:31:38,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:31:38" (1/1) ... [2019-12-28 05:31:38,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:31:38,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:31:39,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:31:39,352 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:31:39,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:31:39,484 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:31:39,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:39 WrapperNode [2019-12-28 05:31:39,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:31:39,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:31:39,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:31:39,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:31:39,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:39" (1/1) ... [2019-12-28 05:31:39,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:39" (1/1) ... [2019-12-28 05:31:39,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:31:39,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:31:39,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:31:39,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:31:39,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:39" (1/1) ... [2019-12-28 05:31:39,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:39" (1/1) ... [2019-12-28 05:31:39,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:39" (1/1) ... [2019-12-28 05:31:39,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:39" (1/1) ... [2019-12-28 05:31:39,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:39" (1/1) ... [2019-12-28 05:31:39,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:39" (1/1) ... [2019-12-28 05:31:39,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:39" (1/1) ... [2019-12-28 05:31:39,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:31:39,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:31:39,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:31:39,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:31:39,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:31:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:31:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:31:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:31:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:31:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:31:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:31:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:31:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:31:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:31:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:31:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:31:39,628 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:31:39,986 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:31:39,987 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:31:39,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:31:39 BoogieIcfgContainer [2019-12-28 05:31:39,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:31:39,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:31:39,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:31:39,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:31:39,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:31:38" (1/3) ... [2019-12-28 05:31:39,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae47d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:31:39, skipping insertion in model container [2019-12-28 05:31:39,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:39" (2/3) ... [2019-12-28 05:31:39,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae47d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:31:39, skipping insertion in model container [2019-12-28 05:31:39,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:31:39" (3/3) ... [2019-12-28 05:31:39,997 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_tso.opt.i [2019-12-28 05:31:40,006 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:31:40,006 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:31:40,014 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:31:40,015 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:31:40,040 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,041 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,041 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,041 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,042 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,042 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,043 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,043 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,043 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,043 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,044 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,044 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,048 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,048 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,048 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,048 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,056 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,056 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,057 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,057 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:40,071 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-28 05:31:40,088 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:31:40,088 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:31:40,089 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:31:40,089 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:31:40,089 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:31:40,089 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:31:40,089 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:31:40,090 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:31:40,100 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 43 transitions [2019-12-28 05:31:40,131 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 287 states. [2019-12-28 05:31:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2019-12-28 05:31:40,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-28 05:31:40,145 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:31:40,146 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:31:40,147 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:31:40,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:31:40,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1861061719, now seen corresponding path program 1 times [2019-12-28 05:31:40,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:31:40,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734402877] [2019-12-28 05:31:40,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:31:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:31:40,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:31:40,479 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734402877] [2019-12-28 05:31:40,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:31:40,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:31:40,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [255087071] [2019-12-28 05:31:40,482 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:31:40,489 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:31:40,507 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 27 states and 26 transitions. [2019-12-28 05:31:40,507 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:31:40,511 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:31:40,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:31:40,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:31:40,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:31:40,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:31:40,526 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 4 states. [2019-12-28 05:31:40,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:31:40,583 INFO L93 Difference]: Finished difference Result 288 states and 647 transitions. [2019-12-28 05:31:40,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:31:40,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2019-12-28 05:31:40,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:31:40,597 INFO L225 Difference]: With dead ends: 288 [2019-12-28 05:31:40,598 INFO L226 Difference]: Without dead ends: 152 [2019-12-28 05:31:40,599 INFO L631 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 [2019-12-28 05:31:40,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-12-28 05:31:40,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-12-28 05:31:40,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-12-28 05:31:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 326 transitions. [2019-12-28 05:31:40,656 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 326 transitions. Word has length 26 [2019-12-28 05:31:40,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:31:40,656 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 326 transitions. [2019-12-28 05:31:40,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:31:40,657 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 326 transitions. [2019-12-28 05:31:40,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-28 05:31:40,659 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:31:40,659 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:31:40,659 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:31:40,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:31:40,660 INFO L82 PathProgramCache]: Analyzing trace with hash 824016093, now seen corresponding path program 1 times [2019-12-28 05:31:40,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:31:40,661 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155584036] [2019-12-28 05:31:40,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:31:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:31:40,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:31:40,822 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155584036] [2019-12-28 05:31:40,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:31:40,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:31:40,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1361813476] [2019-12-28 05:31:40,823 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:31:40,827 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:31:40,830 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 35 transitions. [2019-12-28 05:31:40,850 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:31:40,903 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 05:31:40,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:31:40,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:31:40,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:31:40,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:31:40,906 INFO L87 Difference]: Start difference. First operand 152 states and 326 transitions. Second operand 6 states. [2019-12-28 05:31:40,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:31:40,984 INFO L93 Difference]: Finished difference Result 125 states and 242 transitions. [2019-12-28 05:31:40,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:31:40,989 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-12-28 05:31:40,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:31:40,991 INFO L225 Difference]: With dead ends: 125 [2019-12-28 05:31:40,991 INFO L226 Difference]: Without dead ends: 110 [2019-12-28 05:31:40,992 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:31:40,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-12-28 05:31:41,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-12-28 05:31:41,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-12-28 05:31:41,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 214 transitions. [2019-12-28 05:31:41,009 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 214 transitions. Word has length 27 [2019-12-28 05:31:41,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:31:41,009 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 214 transitions. [2019-12-28 05:31:41,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:31:41,013 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 214 transitions. [2019-12-28 05:31:41,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-28 05:31:41,014 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:31:41,014 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:31:41,017 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:31:41,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:31:41,017 INFO L82 PathProgramCache]: Analyzing trace with hash -904453946, now seen corresponding path program 1 times [2019-12-28 05:31:41,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:31:41,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130354567] [2019-12-28 05:31:41,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:31:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:31:41,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:31:41,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130354567] [2019-12-28 05:31:41,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:31:41,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:31:41,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [312890549] [2019-12-28 05:31:41,215 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:31:41,218 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:31:41,222 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 33 states and 36 transitions. [2019-12-28 05:31:41,222 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:31:41,265 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 05:31:41,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:31:41,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:31:41,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:31:41,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:31:41,267 INFO L87 Difference]: Start difference. First operand 110 states and 214 transitions. Second operand 8 states. [2019-12-28 05:31:41,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:31:41,412 INFO L93 Difference]: Finished difference Result 164 states and 331 transitions. [2019-12-28 05:31:41,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:31:41,413 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2019-12-28 05:31:41,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:31:41,414 INFO L225 Difference]: With dead ends: 164 [2019-12-28 05:31:41,414 INFO L226 Difference]: Without dead ends: 95 [2019-12-28 05:31:41,415 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:31:41,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-12-28 05:31:41,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-12-28 05:31:41,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-12-28 05:31:41,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 184 transitions. [2019-12-28 05:31:41,424 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 184 transitions. Word has length 28 [2019-12-28 05:31:41,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:31:41,424 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 184 transitions. [2019-12-28 05:31:41,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:31:41,424 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 184 transitions. [2019-12-28 05:31:41,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-28 05:31:41,427 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:31:41,427 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:31:41,427 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:31:41,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:31:41,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1329653548, now seen corresponding path program 2 times [2019-12-28 05:31:41,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:31:41,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305423321] [2019-12-28 05:31:41,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:31:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:31:41,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:31:41,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305423321] [2019-12-28 05:31:41,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:31:41,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:31:41,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [293845620] [2019-12-28 05:31:41,585 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:31:41,587 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:31:41,590 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 29 states and 28 transitions. [2019-12-28 05:31:41,591 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:31:41,591 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:31:41,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:31:41,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:31:41,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:31:41,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:31:41,594 INFO L87 Difference]: Start difference. First operand 95 states and 184 transitions. Second operand 7 states. [2019-12-28 05:31:41,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:31:41,702 INFO L93 Difference]: Finished difference Result 77 states and 142 transitions. [2019-12-28 05:31:41,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:31:41,703 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-12-28 05:31:41,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:31:41,704 INFO L225 Difference]: With dead ends: 77 [2019-12-28 05:31:41,704 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:31:41,704 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:31:41,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:31:41,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:31:41,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:31:41,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:31:41,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-12-28 05:31:41,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:31:41,707 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:31:41,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:31:41,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:31:41,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:31:41,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:31:41 BasicIcfg [2019-12-28 05:31:41,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:31:41,718 INFO L168 Benchmark]: Toolchain (without parser) took 2924.82 ms. Allocated memory was 142.6 MB in the beginning and 228.1 MB in the end (delta: 85.5 MB). Free memory was 99.3 MB in the beginning and 116.5 MB in the end (delta: -17.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 7.1 GB. [2019-12-28 05:31:41,720 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.6 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-28 05:31:41,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.41 ms. Allocated memory was 142.6 MB in the beginning and 200.3 MB in the end (delta: 57.7 MB). Free memory was 98.9 MB in the beginning and 157.3 MB in the end (delta: -58.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-12-28 05:31:41,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.20 ms. Allocated memory is still 200.3 MB. Free memory was 157.3 MB in the beginning and 155.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:31:41,731 INFO L168 Benchmark]: Boogie Preprocessor took 27.17 ms. Allocated memory is still 200.3 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:31:41,732 INFO L168 Benchmark]: RCFGBuilder took 425.91 ms. Allocated memory is still 200.3 MB. Free memory was 153.9 MB in the beginning and 135.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2019-12-28 05:31:41,733 INFO L168 Benchmark]: TraceAbstraction took 1725.71 ms. Allocated memory was 200.3 MB in the beginning and 228.1 MB in the end (delta: 27.8 MB). Free memory was 135.0 MB in the beginning and 116.5 MB in the end (delta: 18.5 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. [2019-12-28 05:31:41,744 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.6 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.41 ms. Allocated memory was 142.6 MB in the beginning and 200.3 MB in the end (delta: 57.7 MB). Free memory was 98.9 MB in the beginning and 157.3 MB in the end (delta: -58.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.20 ms. Allocated memory is still 200.3 MB. Free memory was 157.3 MB in the beginning and 155.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.17 ms. Allocated memory is still 200.3 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 425.91 ms. Allocated memory is still 200.3 MB. Free memory was 153.9 MB in the beginning and 135.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1725.71 ms. Allocated memory was 200.3 MB in the beginning and 228.1 MB in the end (delta: 27.8 MB). Free memory was 135.0 MB in the beginning and 116.5 MB in the end (delta: 18.5 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 43 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 155 SDtfs, 169 SDslu, 409 SDs, 0 SdLazy, 65 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=287occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 7005 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...