/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/safe037_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:33:52,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:33:52,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:33:52,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:33:52,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:33:52,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:33:52,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:33:52,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:33:52,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:33:52,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:33:52,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:33:52,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:33:52,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:33:52,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:33:52,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:33:52,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:33:52,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:33:52,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:33:52,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:33:52,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:33:52,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:33:52,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:33:52,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:33:52,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:33:52,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:33:52,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:33:52,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:33:52,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:33:52,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:33:52,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:33:52,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:33:52,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:33:52,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:33:52,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:33:52,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:33:52,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:33:52,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:33:52,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:33:52,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:33:52,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:33:52,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:33:52,647 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 05:33:52,669 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:33:52,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:33:52,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:33:52,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:33:52,672 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:33:52,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:33:52,672 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:33:52,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:33:52,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:33:52,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:33:52,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:33:52,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:33:52,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:33:52,675 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:33:52,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:33:52,675 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:33:52,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:33:52,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:33:52,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:33:52,676 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:33:52,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:33:52,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:33:52,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:33:52,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:33:52,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:33:52,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:33:52,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:33:52,678 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:33:52,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:33:52,678 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:33:52,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:33:52,976 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:33:52,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:33:52,981 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:33:52,981 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:33:52,982 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i [2019-12-19 05:33:53,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7236d256/b28b6a9e69c74f588a6c705f217b4c74/FLAG16f60a9f6 [2019-12-19 05:33:53,582 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:33:53,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i [2019-12-19 05:33:53,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7236d256/b28b6a9e69c74f588a6c705f217b4c74/FLAG16f60a9f6 [2019-12-19 05:33:53,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7236d256/b28b6a9e69c74f588a6c705f217b4c74 [2019-12-19 05:33:53,922 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:33:53,924 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:33:53,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:33:53,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:33:53,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:33:53,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:33:53" (1/1) ... [2019-12-19 05:33:53,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726d052e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:53, skipping insertion in model container [2019-12-19 05:33:53,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:33:53" (1/1) ... [2019-12-19 05:33:53,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:33:54,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:33:54,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:33:54,531 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:33:54,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:33:54,698 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:33:54,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54 WrapperNode [2019-12-19 05:33:54,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:33:54,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:33:54,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:33:54,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:33:54,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54" (1/1) ... [2019-12-19 05:33:54,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54" (1/1) ... [2019-12-19 05:33:54,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:33:54,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:33:54,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:33:54,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:33:54,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54" (1/1) ... [2019-12-19 05:33:54,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54" (1/1) ... [2019-12-19 05:33:54,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54" (1/1) ... [2019-12-19 05:33:54,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54" (1/1) ... [2019-12-19 05:33:54,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54" (1/1) ... [2019-12-19 05:33:54,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54" (1/1) ... [2019-12-19 05:33:54,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54" (1/1) ... [2019-12-19 05:33:54,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:33:54,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:33:54,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:33:54,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:33:54,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54" (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 05:33:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:33:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:33:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:33:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:33:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:33:54,853 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:33:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:33:54,853 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:33:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:33:54,855 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:33:54,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:33:54,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:33:54,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:33:54,857 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 05:33:55,247 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:33:55,248 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:33:55,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:33:55 BoogieIcfgContainer [2019-12-19 05:33:55,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:33:55,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:33:55,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:33:55,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:33:55,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:33:53" (1/3) ... [2019-12-19 05:33:55,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f7f143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:33:55, skipping insertion in model container [2019-12-19 05:33:55,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54" (2/3) ... [2019-12-19 05:33:55,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f7f143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:33:55, skipping insertion in model container [2019-12-19 05:33:55,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:33:55" (3/3) ... [2019-12-19 05:33:55,260 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_power.opt.i [2019-12-19 05:33:55,268 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:33:55,269 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:33:55,277 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:33:55,277 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:33:55,306 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,307 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,307 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,307 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,308 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,308 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,308 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,309 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,309 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,309 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,309 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,310 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,310 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,310 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,311 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,311 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,311 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,312 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,316 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,316 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,316 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,317 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,322 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,323 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,323 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,323 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,326 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,326 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,326 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,327 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,342 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:33:55,360 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:33:55,360 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:33:55,360 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:33:55,361 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:33:55,361 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:33:55,361 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:33:55,361 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:33:55,361 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:33:55,372 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-19 05:33:55,465 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-19 05:33:55,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-19 05:33:55,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:33:55,493 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:55,494 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] [2019-12-19 05:33:55,494 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:55,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:55,503 INFO L82 PathProgramCache]: Analyzing trace with hash -856501925, now seen corresponding path program 1 times [2019-12-19 05:33:55,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:55,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563870458] [2019-12-19 05:33:55,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:55,920 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 05:33:55,921 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563870458] [2019-12-19 05:33:55,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:55,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:33:55,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66137399] [2019-12-19 05:33:55,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:33:55,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:55,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:33:55,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:33:55,947 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-19 05:33:56,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:56,074 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-19 05:33:56,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:33:56,076 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-19 05:33:56,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:56,109 INFO L225 Difference]: With dead ends: 1296 [2019-12-19 05:33:56,110 INFO L226 Difference]: Without dead ends: 602 [2019-12-19 05:33:56,113 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 05:33:56,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-19 05:33:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-19 05:33:56,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-19 05:33:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-19 05:33:56,225 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-19 05:33:56,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:56,225 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-19 05:33:56,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:33:56,226 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-19 05:33:56,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:33:56,229 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:56,229 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 05:33:56,229 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:56,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:56,230 INFO L82 PathProgramCache]: Analyzing trace with hash 709357799, now seen corresponding path program 1 times [2019-12-19 05:33:56,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:56,230 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301198043] [2019-12-19 05:33:56,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:56,390 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 05:33:56,391 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301198043] [2019-12-19 05:33:56,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:56,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:33:56,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044689003] [2019-12-19 05:33:56,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:33:56,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:56,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:33:56,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:33:56,396 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-19 05:33:56,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:56,484 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-19 05:33:56,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:33:56,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-19 05:33:56,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:56,490 INFO L225 Difference]: With dead ends: 602 [2019-12-19 05:33:56,490 INFO L226 Difference]: Without dead ends: 539 [2019-12-19 05:33:56,491 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 05:33:56,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-19 05:33:56,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-19 05:33:56,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-19 05:33:56,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-19 05:33:56,539 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-19 05:33:56,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:56,539 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-19 05:33:56,539 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:33:56,539 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-19 05:33:56,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:33:56,544 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:56,544 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 05:33:56,544 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:56,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:56,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1444603190, now seen corresponding path program 1 times [2019-12-19 05:33:56,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:56,545 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569839175] [2019-12-19 05:33:56,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:56,723 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 05:33:56,724 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569839175] [2019-12-19 05:33:56,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:56,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:33:56,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59029498] [2019-12-19 05:33:56,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:33:56,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:56,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:33:56,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:33:56,727 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-19 05:33:56,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:56,820 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-19 05:33:56,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:33:56,821 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-19 05:33:56,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:56,824 INFO L225 Difference]: With dead ends: 404 [2019-12-19 05:33:56,824 INFO L226 Difference]: Without dead ends: 350 [2019-12-19 05:33:56,825 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 05:33:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-19 05:33:56,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-19 05:33:56,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-19 05:33:56,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-19 05:33:56,838 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-19 05:33:56,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:56,839 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-19 05:33:56,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:33:56,839 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-19 05:33:56,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:33:56,841 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:56,841 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 05:33:56,841 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:56,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:56,842 INFO L82 PathProgramCache]: Analyzing trace with hash 318820434, now seen corresponding path program 1 times [2019-12-19 05:33:56,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:56,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166068975] [2019-12-19 05:33:56,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:56,982 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 05:33:56,982 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166068975] [2019-12-19 05:33:56,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:56,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:33:56,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569409810] [2019-12-19 05:33:56,983 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:33:56,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:56,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:33:56,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:33:56,984 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 7 states. [2019-12-19 05:33:57,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:57,144 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-19 05:33:57,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:33:57,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:33:57,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:57,148 INFO L225 Difference]: With dead ends: 521 [2019-12-19 05:33:57,148 INFO L226 Difference]: Without dead ends: 314 [2019-12-19 05:33:57,149 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:33:57,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-12-19 05:33:57,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 305. [2019-12-19 05:33:57,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2019-12-19 05:33:57,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 781 transitions. [2019-12-19 05:33:57,161 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 781 transitions. Word has length 35 [2019-12-19 05:33:57,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:57,162 INFO L462 AbstractCegarLoop]: Abstraction has 305 states and 781 transitions. [2019-12-19 05:33:57,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:33:57,162 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 781 transitions. [2019-12-19 05:33:57,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:33:57,163 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:57,164 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 05:33:57,164 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:57,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:57,164 INFO L82 PathProgramCache]: Analyzing trace with hash 944612746, now seen corresponding path program 2 times [2019-12-19 05:33:57,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:57,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619556594] [2019-12-19 05:33:57,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:57,322 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 05:33:57,323 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619556594] [2019-12-19 05:33:57,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:57,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:33:57,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512298523] [2019-12-19 05:33:57,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:33:57,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:57,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:33:57,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:33:57,325 INFO L87 Difference]: Start difference. First operand 305 states and 781 transitions. Second operand 7 states. [2019-12-19 05:33:57,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:57,489 INFO L93 Difference]: Finished difference Result 476 states and 1261 transitions. [2019-12-19 05:33:57,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:33:57,489 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:33:57,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:57,492 INFO L225 Difference]: With dead ends: 476 [2019-12-19 05:33:57,492 INFO L226 Difference]: Without dead ends: 278 [2019-12-19 05:33:57,493 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:33:57,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-19 05:33:57,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 269. [2019-12-19 05:33:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-12-19 05:33:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 703 transitions. [2019-12-19 05:33:57,502 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 703 transitions. Word has length 35 [2019-12-19 05:33:57,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:57,502 INFO L462 AbstractCegarLoop]: Abstraction has 269 states and 703 transitions. [2019-12-19 05:33:57,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:33:57,502 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 703 transitions. [2019-12-19 05:33:57,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:33:57,504 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:57,504 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 05:33:57,504 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:57,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:57,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1320097416, now seen corresponding path program 3 times [2019-12-19 05:33:57,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:57,505 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873040309] [2019-12-19 05:33:57,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:57,624 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 05:33:57,624 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873040309] [2019-12-19 05:33:57,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:57,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:33:57,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710416331] [2019-12-19 05:33:57,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:33:57,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:57,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:33:57,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:33:57,626 INFO L87 Difference]: Start difference. First operand 269 states and 703 transitions. Second operand 7 states. [2019-12-19 05:33:57,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:57,745 INFO L93 Difference]: Finished difference Result 215 states and 541 transitions. [2019-12-19 05:33:57,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:33:57,745 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:33:57,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:57,746 INFO L225 Difference]: With dead ends: 215 [2019-12-19 05:33:57,746 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:33:57,747 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:33:57,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:33:57,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:33:57,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:33:57,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:33:57,748 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-19 05:33:57,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:57,748 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:33:57,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:33:57,748 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:33:57,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:33:57,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:33:57 BasicIcfg [2019-12-19 05:33:57,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:33:57,757 INFO L168 Benchmark]: Toolchain (without parser) took 3832.82 ms. Allocated memory was 144.2 MB in the beginning and 252.7 MB in the end (delta: 108.5 MB). Free memory was 99.5 MB in the beginning and 163.5 MB in the end (delta: -63.9 MB). Peak memory consumption was 44.6 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:57,758 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 144.2 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-19 05:33:57,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.25 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 99.1 MB in the beginning and 157.4 MB in the end (delta: -58.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:57,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.32 ms. Allocated memory is still 201.3 MB. Free memory was 157.4 MB in the beginning and 154.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:57,763 INFO L168 Benchmark]: Boogie Preprocessor took 28.72 ms. Allocated memory is still 201.3 MB. Free memory was 154.7 MB in the beginning and 153.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:57,764 INFO L168 Benchmark]: RCFGBuilder took 466.74 ms. Allocated memory is still 201.3 MB. Free memory was 153.4 MB in the beginning and 133.0 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:57,765 INFO L168 Benchmark]: TraceAbstraction took 2503.48 ms. Allocated memory was 201.3 MB in the beginning and 252.7 MB in the end (delta: 51.4 MB). Free memory was 132.3 MB in the beginning and 163.5 MB in the end (delta: -31.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:57,769 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 144.2 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.25 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 99.1 MB in the beginning and 157.4 MB in the end (delta: -58.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.32 ms. Allocated memory is still 201.3 MB. Free memory was 157.4 MB in the beginning and 154.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.72 ms. Allocated memory is still 201.3 MB. Free memory was 154.7 MB in the beginning and 153.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 466.74 ms. Allocated memory is still 201.3 MB. Free memory was 153.4 MB in the beginning and 133.0 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2503.48 ms. Allocated memory was 201.3 MB in the beginning and 252.7 MB in the end (delta: 51.4 MB). Free memory was 132.3 MB in the beginning and 163.5 MB in the end (delta: -31.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 327 SDtfs, 348 SDslu, 905 SDs, 0 SdLazy, 119 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 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, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 18586 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...