/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/safe007_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 13:31:42,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 13:31:42,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 13:31:42,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 13:31:42,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 13:31:42,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 13:31:42,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 13:31:42,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 13:31:42,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 13:31:42,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 13:31:42,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 13:31:42,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 13:31:42,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 13:31:42,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 13:31:42,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 13:31:42,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 13:31:42,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 13:31:42,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 13:31:42,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 13:31:42,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 13:31:42,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 13:31:42,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 13:31:42,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 13:31:42,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 13:31:42,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 13:31:42,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 13:31:42,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 13:31:42,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 13:31:42,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 13:31:42,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 13:31:42,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 13:31:42,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 13:31:42,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 13:31:42,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 13:31:42,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 13:31:42,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 13:31:42,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 13:31:42,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 13:31:42,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 13:31:42,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 13:31:42,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 13:31:42,787 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 [2019-12-27 13:31:42,824 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 13:31:42,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 13:31:42,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 13:31:42,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 13:31:42,826 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 13:31:42,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 13:31:42,826 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 13:31:42,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 13:31:42,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 13:31:42,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 13:31:42,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 13:31:42,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 13:31:42,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 13:31:42,828 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 13:31:42,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 13:31:42,828 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 13:31:42,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 13:31:42,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 13:31:42,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 13:31:42,829 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 13:31:42,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 13:31:42,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 13:31:42,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 13:31:42,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 13:31:42,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 13:31:42,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 13:31:42,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 13:31:42,835 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 13:31:42,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 13:31:42,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 13:31:43,132 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 13:31:43,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 13:31:43,151 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 13:31:43,153 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 13:31:43,153 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 13:31:43,154 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2019-12-27 13:31:43,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41616f60b/610934aa780f455489ae81437bf1dcaf/FLAG1e2613f6b [2019-12-27 13:31:43,785 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 13:31:43,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2019-12-27 13:31:43,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41616f60b/610934aa780f455489ae81437bf1dcaf/FLAG1e2613f6b [2019-12-27 13:31:44,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41616f60b/610934aa780f455489ae81437bf1dcaf [2019-12-27 13:31:44,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 13:31:44,093 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 13:31:44,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 13:31:44,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 13:31:44,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 13:31:44,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:31:44" (1/1) ... [2019-12-27 13:31:44,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61fcd619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44, skipping insertion in model container [2019-12-27 13:31:44,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:31:44" (1/1) ... [2019-12-27 13:31:44,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 13:31:44,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 13:31:44,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:31:44,675 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 13:31:44,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:31:44,795 INFO L208 MainTranslator]: Completed translation [2019-12-27 13:31:44,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44 WrapperNode [2019-12-27 13:31:44,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 13:31:44,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 13:31:44,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 13:31:44,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 13:31:44,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44" (1/1) ... [2019-12-27 13:31:44,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44" (1/1) ... [2019-12-27 13:31:44,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 13:31:44,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 13:31:44,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 13:31:44,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 13:31:44,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44" (1/1) ... [2019-12-27 13:31:44,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44" (1/1) ... [2019-12-27 13:31:44,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44" (1/1) ... [2019-12-27 13:31:44,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44" (1/1) ... [2019-12-27 13:31:44,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44" (1/1) ... [2019-12-27 13:31:44,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44" (1/1) ... [2019-12-27 13:31:44,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44" (1/1) ... [2019-12-27 13:31:44,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 13:31:44,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 13:31:44,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 13:31:44,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 13:31:44,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44" (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 [2019-12-27 13:31:44,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 13:31:44,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 13:31:44,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 13:31:44,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 13:31:44,958 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 13:31:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 13:31:44,959 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 13:31:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 13:31:44,959 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 13:31:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 13:31:44,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 13:31:44,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 13:31:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 13:31:44,962 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 13:31:45,337 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 13:31:45,338 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 13:31:45,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:31:45 BoogieIcfgContainer [2019-12-27 13:31:45,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 13:31:45,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 13:31:45,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 13:31:45,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 13:31:45,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 01:31:44" (1/3) ... [2019-12-27 13:31:45,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f18912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:31:45, skipping insertion in model container [2019-12-27 13:31:45,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:31:44" (2/3) ... [2019-12-27 13:31:45,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f18912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:31:45, skipping insertion in model container [2019-12-27 13:31:45,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:31:45" (3/3) ... [2019-12-27 13:31:45,349 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2019-12-27 13:31:45,360 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 13:31:45,360 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 13:31:45,368 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 13:31:45,369 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 13:31:45,401 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,401 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,401 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,402 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,403 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,403 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,403 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,404 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,404 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,404 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,404 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,405 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,406 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,407 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,407 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,407 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,407 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,408 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,412 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,412 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,413 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,413 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,427 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,429 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,429 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,429 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,432 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,433 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,433 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,433 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:31:45,447 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 13:31:45,463 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 13:31:45,463 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 13:31:45,463 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 13:31:45,463 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 13:31:45,463 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 13:31:45,463 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 13:31:45,464 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 13:31:45,464 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 13:31:45,477 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-27 13:31:45,568 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-27 13:31:45,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-27 13:31:45,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 13:31:45,595 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:31:45,596 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] [2019-12-27 13:31:45,597 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:31:45,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:31:45,603 INFO L82 PathProgramCache]: Analyzing trace with hash 100870604, now seen corresponding path program 1 times [2019-12-27 13:31:45,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:31:45,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532864023] [2019-12-27 13:31:45,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:31:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:31:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:31:46,023 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532864023] [2019-12-27 13:31:46,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:31:46,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 13:31:46,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927683113] [2019-12-27 13:31:46,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 13:31:46,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:31:46,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 13:31:46,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 13:31:46,049 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-27 13:31:46,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:31:46,163 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-27 13:31:46,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 13:31:46,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-27 13:31:46,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:31:46,189 INFO L225 Difference]: With dead ends: 1296 [2019-12-27 13:31:46,189 INFO L226 Difference]: Without dead ends: 602 [2019-12-27 13:31:46,190 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 [2019-12-27 13:31:46,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-27 13:31:46,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-27 13:31:46,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-27 13:31:46,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-27 13:31:46,279 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-27 13:31:46,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:31:46,280 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-27 13:31:46,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 13:31:46,280 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-27 13:31:46,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 13:31:46,283 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:31:46,283 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] [2019-12-27 13:31:46,283 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:31:46,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:31:46,284 INFO L82 PathProgramCache]: Analyzing trace with hash -471697472, now seen corresponding path program 1 times [2019-12-27 13:31:46,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:31:46,284 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625180623] [2019-12-27 13:31:46,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:31:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:31:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:31:46,447 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625180623] [2019-12-27 13:31:46,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:31:46,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 13:31:46,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79618091] [2019-12-27 13:31:46,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 13:31:46,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:31:46,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 13:31:46,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 13:31:46,450 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-27 13:31:46,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:31:46,517 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-27 13:31:46,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 13:31:46,518 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-27 13:31:46,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:31:46,523 INFO L225 Difference]: With dead ends: 602 [2019-12-27 13:31:46,523 INFO L226 Difference]: Without dead ends: 539 [2019-12-27 13:31:46,524 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 [2019-12-27 13:31:46,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-27 13:31:46,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-27 13:31:46,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-27 13:31:46,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-27 13:31:46,551 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-27 13:31:46,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:31:46,551 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-27 13:31:46,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 13:31:46,551 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-27 13:31:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 13:31:46,553 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:31:46,553 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] [2019-12-27 13:31:46,554 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:31:46,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:31:46,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1145104615, now seen corresponding path program 1 times [2019-12-27 13:31:46,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:31:46,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149043762] [2019-12-27 13:31:46,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:31:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:31:46,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:31:46,668 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149043762] [2019-12-27 13:31:46,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:31:46,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 13:31:46,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212673416] [2019-12-27 13:31:46,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 13:31:46,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:31:46,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 13:31:46,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 13:31:46,670 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-27 13:31:46,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:31:46,766 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-27 13:31:46,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:31:46,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-27 13:31:46,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:31:46,769 INFO L225 Difference]: With dead ends: 404 [2019-12-27 13:31:46,769 INFO L226 Difference]: Without dead ends: 350 [2019-12-27 13:31:46,770 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 [2019-12-27 13:31:46,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-27 13:31:46,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-27 13:31:46,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-27 13:31:46,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-27 13:31:46,781 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-27 13:31:46,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:31:46,782 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-27 13:31:46,782 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 13:31:46,782 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-27 13:31:46,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 13:31:46,783 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:31:46,784 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] [2019-12-27 13:31:46,784 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:31:46,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:31:46,784 INFO L82 PathProgramCache]: Analyzing trace with hash 608973843, now seen corresponding path program 1 times [2019-12-27 13:31:46,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:31:46,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960847917] [2019-12-27 13:31:46,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:31:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:31:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:31:46,969 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960847917] [2019-12-27 13:31:46,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:31:46,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 13:31:46,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298261973] [2019-12-27 13:31:46,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 13:31:46,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:31:46,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 13:31:46,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 13:31:46,972 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 8 states. [2019-12-27 13:31:47,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:31:47,114 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-27 13:31:47,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:31:47,115 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-27 13:31:47,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:31:47,119 INFO L225 Difference]: With dead ends: 521 [2019-12-27 13:31:47,119 INFO L226 Difference]: Without dead ends: 278 [2019-12-27 13:31:47,121 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 [2019-12-27 13:31:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-27 13:31:47,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-12-27 13:31:47,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-12-27 13:31:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 727 transitions. [2019-12-27 13:31:47,136 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 727 transitions. Word has length 35 [2019-12-27 13:31:47,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:31:47,136 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 727 transitions. [2019-12-27 13:31:47,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 13:31:47,137 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 727 transitions. [2019-12-27 13:31:47,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 13:31:47,138 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:31:47,138 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] [2019-12-27 13:31:47,138 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:31:47,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:31:47,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1362281377, now seen corresponding path program 2 times [2019-12-27 13:31:47,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:31:47,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098840978] [2019-12-27 13:31:47,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:31:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:31:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:31:47,333 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098840978] [2019-12-27 13:31:47,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:31:47,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 13:31:47,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306964375] [2019-12-27 13:31:47,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 13:31:47,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:31:47,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 13:31:47,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 13:31:47,337 INFO L87 Difference]: Start difference. First operand 278 states and 727 transitions. Second operand 8 states. [2019-12-27 13:31:47,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:31:47,477 INFO L93 Difference]: Finished difference Result 440 states and 1186 transitions. [2019-12-27 13:31:47,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 13:31:47,478 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-27 13:31:47,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:31:47,480 INFO L225 Difference]: With dead ends: 440 [2019-12-27 13:31:47,480 INFO L226 Difference]: Without dead ends: 254 [2019-12-27 13:31:47,483 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 [2019-12-27 13:31:47,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-27 13:31:47,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2019-12-27 13:31:47,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-12-27 13:31:47,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 673 transitions. [2019-12-27 13:31:47,492 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 673 transitions. Word has length 35 [2019-12-27 13:31:47,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:31:47,493 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 673 transitions. [2019-12-27 13:31:47,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 13:31:47,493 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 673 transitions. [2019-12-27 13:31:47,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 13:31:47,494 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:31:47,494 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] [2019-12-27 13:31:47,498 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:31:47,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:31:47,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1957742869, now seen corresponding path program 3 times [2019-12-27 13:31:47,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:31:47,505 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635193657] [2019-12-27 13:31:47,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:31:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:31:47,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:31:47,676 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635193657] [2019-12-27 13:31:47,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:31:47,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 13:31:47,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711236479] [2019-12-27 13:31:47,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 13:31:47,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:31:47,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 13:31:47,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 13:31:47,679 INFO L87 Difference]: Start difference. First operand 254 states and 673 transitions. Second operand 8 states. [2019-12-27 13:31:47,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:31:47,769 INFO L93 Difference]: Finished difference Result 200 states and 511 transitions. [2019-12-27 13:31:47,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 13:31:47,770 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-27 13:31:47,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:31:47,770 INFO L225 Difference]: With dead ends: 200 [2019-12-27 13:31:47,770 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 13:31:47,771 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 [2019-12-27 13:31:47,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 13:31:47,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 13:31:47,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 13:31:47,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 13:31:47,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-27 13:31:47,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:31:47,772 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 13:31:47,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 13:31:47,772 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 13:31:47,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 13:31:47,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 01:31:47 BasicIcfg [2019-12-27 13:31:47,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 13:31:47,792 INFO L168 Benchmark]: Toolchain (without parser) took 3694.90 ms. Allocated memory was 141.0 MB in the beginning and 244.3 MB in the end (delta: 103.3 MB). Free memory was 103.2 MB in the beginning and 146.0 MB in the end (delta: -42.8 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. [2019-12-27 13:31:47,793 INFO L168 Benchmark]: CDTParser took 1.11 ms. Allocated memory is still 141.0 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 13:31:47,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.89 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 103.0 MB in the beginning and 160.0 MB in the end (delta: -57.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-27 13:31:47,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.81 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 13:31:47,797 INFO L168 Benchmark]: Boogie Preprocessor took 26.95 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2019-12-27 13:31:47,798 INFO L168 Benchmark]: RCFGBuilder took 457.65 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 136.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 13:31:47,799 INFO L168 Benchmark]: TraceAbstraction took 2444.18 ms. Allocated memory was 203.4 MB in the beginning and 244.3 MB in the end (delta: 40.9 MB). Free memory was 135.5 MB in the beginning and 146.0 MB in the end (delta: -10.4 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2019-12-27 13:31:47,810 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11 ms. Allocated memory is still 141.0 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 700.89 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 103.0 MB in the beginning and 160.0 MB in the end (delta: -57.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.81 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.95 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 457.65 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 136.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2444.18 ms. Allocated memory was 203.4 MB in the beginning and 244.3 MB in the end (delta: 40.9 MB). Free memory was 135.5 MB in the beginning and 146.0 MB in the end (delta: -10.4 MB). Peak memory consumption was 30.5 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: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 284 SDtfs, 395 SDslu, 764 SDs, 0 SdLazy, 113 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 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, 0.8s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 21102 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...