/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:39:00,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:39:00,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:39:00,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:39:00,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:39:00,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:39:00,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:39:00,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:39:00,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:39:00,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:39:00,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:39:00,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:39:00,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:39:00,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:39:00,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:39:00,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:39:00,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:39:00,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:39:00,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:39:00,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:39:00,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:39:00,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:39:00,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:39:00,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:39:00,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:39:00,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:39:00,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:39:00,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:39:00,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:39:00,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:39:00,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:39:00,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:39:00,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:39:00,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:39:00,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:39:00,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:39:00,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 04:39:00,719 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:39:00,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:39:00,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:39:00,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:39:00,721 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:39:00,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:39:00,721 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:39:00,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:39:00,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:39:00,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:39:00,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:39:00,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:39:00,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:39:00,723 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:39:00,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:39:00,723 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:39:00,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:39:00,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:39:00,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:39:00,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:39:00,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:39:00,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:39:00,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:39:00,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:39:00,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:39:00,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:39:00,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:39:00,725 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:39:00,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:39:00,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:39:01,047 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:39:01,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:39:01,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:39:01,082 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:39:01,083 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:39:01,084 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.opt.i [2019-12-19 04:39:01,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e39445e72/267ee956c8e246fa89a60e5aeb7aec3b/FLAG970a395f5 [2019-12-19 04:39:01,708 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:39:01,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.opt.i [2019-12-19 04:39:01,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e39445e72/267ee956c8e246fa89a60e5aeb7aec3b/FLAG970a395f5 [2019-12-19 04:39:02,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e39445e72/267ee956c8e246fa89a60e5aeb7aec3b [2019-12-19 04:39:02,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:39:02,176 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:39:02,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:39:02,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:39:02,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:39:02,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:39:02" (1/1) ... [2019-12-19 04:39:02,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@563c7cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02, skipping insertion in model container [2019-12-19 04:39:02,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:39:02" (1/1) ... [2019-12-19 04:39:02,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:39:02,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:39:02,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:39:02,793 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:39:02,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:39:02,928 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:39:02,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02 WrapperNode [2019-12-19 04:39:02,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:39:02,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:39:02,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:39:02,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:39:02,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02" (1/1) ... [2019-12-19 04:39:02,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02" (1/1) ... [2019-12-19 04:39:02,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:39:02,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:39:02,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:39:02,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:39:02,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02" (1/1) ... [2019-12-19 04:39:02,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02" (1/1) ... [2019-12-19 04:39:02,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02" (1/1) ... [2019-12-19 04:39:02,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02" (1/1) ... [2019-12-19 04:39:03,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02" (1/1) ... [2019-12-19 04:39:03,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02" (1/1) ... [2019-12-19 04:39:03,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02" (1/1) ... [2019-12-19 04:39:03,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:39:03,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:39:03,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:39:03,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:39:03,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02" (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 [2019-12-19 04:39:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:39:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:39:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:39:03,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:39:03,090 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:39:03,091 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:39:03,091 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:39:03,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:39:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:39:03,093 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:39:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:39:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:39:03,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:39:03,095 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:39:03,480 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:39:03,481 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:39:03,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:39:03 BoogieIcfgContainer [2019-12-19 04:39:03,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:39:03,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:39:03,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:39:03,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:39:03,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:39:02" (1/3) ... [2019-12-19 04:39:03,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61233628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:39:03, skipping insertion in model container [2019-12-19 04:39:03,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:39:02" (2/3) ... [2019-12-19 04:39:03,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61233628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:39:03, skipping insertion in model container [2019-12-19 04:39:03,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:39:03" (3/3) ... [2019-12-19 04:39:03,490 INFO L109 eAbstractionObserver]: Analyzing ICFG safe012_tso.opt.i [2019-12-19 04:39:03,501 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:39:03,501 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:39:03,508 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:39:03,509 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:39:03,536 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,537 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,537 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,537 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,537 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,538 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,538 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,538 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,539 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,539 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,539 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,539 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,540 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,540 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,540 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,540 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,541 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,541 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,545 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,545 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,546 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,546 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,552 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,552 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,552 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,553 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,556 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,557 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,557 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,557 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:39:03,572 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:39:03,588 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:39:03,588 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:39:03,588 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:39:03,588 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:39:03,588 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:39:03,588 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:39:03,589 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:39:03,589 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:39:03,598 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-19 04:39:03,692 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-19 04:39:03,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-19 04:39:03,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:39:03,721 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:39:03,722 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, 1, 1, 1, 1] [2019-12-19 04:39:03,722 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:39:03,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:39:03,727 INFO L82 PathProgramCache]: Analyzing trace with hash 100870604, now seen corresponding path program 1 times [2019-12-19 04:39:03,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:39:03,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673975513] [2019-12-19 04:39:03,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:39:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:39:04,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:39:04,216 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673975513] [2019-12-19 04:39:04,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:39:04,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:39:04,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342050135] [2019-12-19 04:39:04,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:39:04,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:39:04,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:39:04,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:39:04,242 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-19 04:39:04,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:39:04,407 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-19 04:39:04,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:39:04,409 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-19 04:39:04,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:39:04,433 INFO L225 Difference]: With dead ends: 1296 [2019-12-19 04:39:04,433 INFO L226 Difference]: Without dead ends: 602 [2019-12-19 04:39:04,435 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 [2019-12-19 04:39:04,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-19 04:39:04,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-19 04:39:04,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-19 04:39:04,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-19 04:39:04,563 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-19 04:39:04,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:39:04,564 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-19 04:39:04,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:39:04,564 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-19 04:39:04,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:39:04,567 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:39:04,567 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, 1, 1, 1, 1, 1] [2019-12-19 04:39:04,567 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:39:04,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:39:04,568 INFO L82 PathProgramCache]: Analyzing trace with hash -471697472, now seen corresponding path program 1 times [2019-12-19 04:39:04,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:39:04,569 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558311148] [2019-12-19 04:39:04,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:39:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:39:04,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:39:04,730 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558311148] [2019-12-19 04:39:04,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:39:04,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:39:04,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630862780] [2019-12-19 04:39:04,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:39:04,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:39:04,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:39:04,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:39:04,734 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-19 04:39:04,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:39:04,801 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-19 04:39:04,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:39:04,802 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-19 04:39:04,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:39:04,807 INFO L225 Difference]: With dead ends: 602 [2019-12-19 04:39:04,808 INFO L226 Difference]: Without dead ends: 539 [2019-12-19 04:39:04,809 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:39:04,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-19 04:39:04,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-19 04:39:04,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-19 04:39:04,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-19 04:39:04,835 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-19 04:39:04,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:39:04,835 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-19 04:39:04,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:39:04,836 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-19 04:39:04,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:39:04,838 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:39:04,838 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, 1, 1, 1, 1, 1, 1] [2019-12-19 04:39:04,838 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:39:04,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:39:04,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1145104615, now seen corresponding path program 1 times [2019-12-19 04:39:04,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:39:04,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393036975] [2019-12-19 04:39:04,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:39:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:39:04,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:39:04,957 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393036975] [2019-12-19 04:39:04,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:39:04,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:39:04,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920861829] [2019-12-19 04:39:04,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:39:04,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:39:04,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:39:04,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:39:04,959 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-19 04:39:05,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:39:05,051 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-19 04:39:05,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:39:05,052 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-19 04:39:05,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:39:05,055 INFO L225 Difference]: With dead ends: 404 [2019-12-19 04:39:05,055 INFO L226 Difference]: Without dead ends: 350 [2019-12-19 04:39:05,056 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:39:05,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-19 04:39:05,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-19 04:39:05,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-19 04:39:05,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-19 04:39:05,067 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-19 04:39:05,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:39:05,068 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-19 04:39:05,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:39:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-19 04:39:05,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:39:05,070 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:39:05,070 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:39:05,070 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:39:05,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:39:05,071 INFO L82 PathProgramCache]: Analyzing trace with hash 608973843, now seen corresponding path program 1 times [2019-12-19 04:39:05,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:39:05,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088236273] [2019-12-19 04:39:05,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:39:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:39:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:39:05,250 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088236273] [2019-12-19 04:39:05,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:39:05,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:39:05,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870430002] [2019-12-19 04:39:05,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:39:05,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:39:05,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:39:05,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:39:05,253 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 8 states. [2019-12-19 04:39:05,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:39:05,383 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-19 04:39:05,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:39:05,384 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 04:39:05,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:39:05,387 INFO L225 Difference]: With dead ends: 521 [2019-12-19 04:39:05,387 INFO L226 Difference]: Without dead ends: 278 [2019-12-19 04:39:05,388 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:39:05,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-19 04:39:05,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-12-19 04:39:05,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-12-19 04:39:05,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 727 transitions. [2019-12-19 04:39:05,402 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 727 transitions. Word has length 35 [2019-12-19 04:39:05,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:39:05,403 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 727 transitions. [2019-12-19 04:39:05,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:39:05,403 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 727 transitions. [2019-12-19 04:39:05,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:39:05,404 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:39:05,404 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:39:05,405 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:39:05,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:39:05,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1362281377, now seen corresponding path program 2 times [2019-12-19 04:39:05,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:39:05,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515339264] [2019-12-19 04:39:05,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:39:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:39:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:39:05,621 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515339264] [2019-12-19 04:39:05,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:39:05,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:39:05,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395554032] [2019-12-19 04:39:05,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:39:05,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:39:05,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:39:05,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:39:05,624 INFO L87 Difference]: Start difference. First operand 278 states and 727 transitions. Second operand 7 states. [2019-12-19 04:39:05,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:39:05,788 INFO L93 Difference]: Finished difference Result 440 states and 1186 transitions. [2019-12-19 04:39:05,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:39:05,788 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 04:39:05,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:39:05,791 INFO L225 Difference]: With dead ends: 440 [2019-12-19 04:39:05,791 INFO L226 Difference]: Without dead ends: 254 [2019-12-19 04:39:05,791 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:39:05,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-19 04:39:05,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2019-12-19 04:39:05,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-12-19 04:39:05,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 673 transitions. [2019-12-19 04:39:05,800 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 673 transitions. Word has length 35 [2019-12-19 04:39:05,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:39:05,801 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 673 transitions. [2019-12-19 04:39:05,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:39:05,801 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 673 transitions. [2019-12-19 04:39:05,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:39:05,802 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:39:05,802 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:39:05,803 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:39:05,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:39:05,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1957742869, now seen corresponding path program 3 times [2019-12-19 04:39:05,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:39:05,804 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200658706] [2019-12-19 04:39:05,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:39:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:39:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:39:05,918 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200658706] [2019-12-19 04:39:05,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:39:05,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:39:05,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899249999] [2019-12-19 04:39:05,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:39:05,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:39:05,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:39:05,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:39:05,920 INFO L87 Difference]: Start difference. First operand 254 states and 673 transitions. Second operand 8 states. [2019-12-19 04:39:06,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:39:06,014 INFO L93 Difference]: Finished difference Result 200 states and 511 transitions. [2019-12-19 04:39:06,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:39:06,014 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 04:39:06,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:39:06,015 INFO L225 Difference]: With dead ends: 200 [2019-12-19 04:39:06,015 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:39:06,015 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:39:06,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:39:06,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:39:06,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:39:06,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:39:06,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-19 04:39:06,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:39:06,017 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:39:06,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:39:06,017 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:39:06,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:39:06,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:39:06 BasicIcfg [2019-12-19 04:39:06,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:39:06,026 INFO L168 Benchmark]: Toolchain (without parser) took 3849.00 ms. Allocated memory was 145.8 MB in the beginning and 248.5 MB in the end (delta: 102.8 MB). Free memory was 102.4 MB in the beginning and 160.9 MB in the end (delta: -58.6 MB). Peak memory consumption was 44.2 MB. Max. memory is 7.1 GB. [2019-12-19 04:39:06,027 INFO L168 Benchmark]: CDTParser took 1.50 ms. Allocated memory is still 145.8 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-19 04:39:06,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.24 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.1 MB in the beginning and 159.3 MB in the end (delta: -57.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:39:06,029 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.74 ms. Allocated memory is still 202.4 MB. Free memory was 159.3 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:39:06,030 INFO L168 Benchmark]: Boogie Preprocessor took 27.62 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:39:06,030 INFO L168 Benchmark]: RCFGBuilder took 469.21 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 134.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:39:06,031 INFO L168 Benchmark]: TraceAbstraction took 2539.80 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 134.9 MB in the beginning and 160.9 MB in the end (delta: -26.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:39:06,036 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50 ms. Allocated memory is still 145.8 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.24 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.1 MB in the beginning and 159.3 MB in the end (delta: -57.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.74 ms. Allocated memory is still 202.4 MB. Free memory was 159.3 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.62 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 469.21 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 134.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2539.80 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 134.9 MB in the beginning and 160.9 MB in the end (delta: -26.0 MB). Peak memory consumption was 20.1 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 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 296 SDtfs, 434 SDslu, 776 SDs, 0 SdLazy, 111 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 20626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...