/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/safe021_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 14:06:29,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 14:06:29,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 14:06:29,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 14:06:29,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 14:06:29,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 14:06:29,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 14:06:29,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 14:06:29,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 14:06:29,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 14:06:29,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 14:06:29,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 14:06:29,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 14:06:29,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 14:06:29,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 14:06:29,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 14:06:29,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 14:06:29,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 14:06:29,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 14:06:29,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 14:06:29,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 14:06:29,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 14:06:29,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 14:06:29,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 14:06:29,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 14:06:29,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 14:06:29,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 14:06:29,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 14:06:29,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 14:06:29,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 14:06:29,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 14:06:29,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 14:06:29,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 14:06:29,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 14:06:29,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 14:06:29,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 14:06:29,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 14:06:29,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 14:06:29,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 14:06:29,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 14:06:29,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 14:06:29,796 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 14:06:29,832 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 14:06:29,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 14:06:29,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 14:06:29,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 14:06:29,837 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 14:06:29,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 14:06:29,838 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 14:06:29,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 14:06:29,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 14:06:29,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 14:06:29,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 14:06:29,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 14:06:29,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 14:06:29,840 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 14:06:29,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 14:06:29,840 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 14:06:29,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 14:06:29,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 14:06:29,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 14:06:29,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 14:06:29,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 14:06:29,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:06:29,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 14:06:29,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 14:06:29,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 14:06:29,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 14:06:29,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 14:06:29,843 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 14:06:29,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 14:06:29,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 14:06:30,119 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 14:06:30,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 14:06:30,143 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 14:06:30,145 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 14:06:30,145 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 14:06:30,146 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2019-12-27 14:06:30,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b857c3ac/f5924bb35d374f3fa3879bc33334e45f/FLAG6a4eca321 [2019-12-27 14:06:30,802 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 14:06:30,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2019-12-27 14:06:30,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b857c3ac/f5924bb35d374f3fa3879bc33334e45f/FLAG6a4eca321 [2019-12-27 14:06:31,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b857c3ac/f5924bb35d374f3fa3879bc33334e45f [2019-12-27 14:06:31,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 14:06:31,079 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 14:06:31,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 14:06:31,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 14:06:31,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 14:06:31,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:06:31" (1/1) ... [2019-12-27 14:06:31,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b25d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31, skipping insertion in model container [2019-12-27 14:06:31,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:06:31" (1/1) ... [2019-12-27 14:06:31,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 14:06:31,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 14:06:31,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:06:31,644 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 14:06:31,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:06:31,774 INFO L208 MainTranslator]: Completed translation [2019-12-27 14:06:31,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31 WrapperNode [2019-12-27 14:06:31,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 14:06:31,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 14:06:31,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 14:06:31,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 14:06:31,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31" (1/1) ... [2019-12-27 14:06:31,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31" (1/1) ... [2019-12-27 14:06:31,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 14:06:31,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 14:06:31,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 14:06:31,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 14:06:31,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31" (1/1) ... [2019-12-27 14:06:31,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31" (1/1) ... [2019-12-27 14:06:31,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31" (1/1) ... [2019-12-27 14:06:31,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31" (1/1) ... [2019-12-27 14:06:31,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31" (1/1) ... [2019-12-27 14:06:31,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31" (1/1) ... [2019-12-27 14:06:31,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31" (1/1) ... [2019-12-27 14:06:31,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 14:06:31,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 14:06:31,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 14:06:31,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 14:06:31,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31" (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 14:06:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 14:06:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 14:06:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 14:06:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 14:06:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 14:06:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 14:06:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 14:06:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 14:06:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 14:06:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 14:06:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 14:06:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 14:06:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 14:06:31,945 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 14:06:32,355 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 14:06:32,355 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 14:06:32,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:06:32 BoogieIcfgContainer [2019-12-27 14:06:32,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 14:06:32,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 14:06:32,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 14:06:32,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 14:06:32,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 02:06:31" (1/3) ... [2019-12-27 14:06:32,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73dc669e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:06:32, skipping insertion in model container [2019-12-27 14:06:32,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:06:31" (2/3) ... [2019-12-27 14:06:32,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73dc669e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:06:32, skipping insertion in model container [2019-12-27 14:06:32,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:06:32" (3/3) ... [2019-12-27 14:06:32,366 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i [2019-12-27 14:06:32,377 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 14:06:32,377 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 14:06:32,385 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 14:06:32,387 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 14:06:32,419 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,419 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,420 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,420 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,420 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,421 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,421 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,421 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,422 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,422 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,422 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,422 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,423 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,423 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,423 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,423 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,424 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,424 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,428 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,429 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,429 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,429 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,436 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,436 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,436 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,437 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,448 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,448 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,449 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,449 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:06:32,464 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 14:06:32,482 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:06:32,482 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:06:32,482 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:06:32,482 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:06:32,482 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:06:32,482 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:06:32,483 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:06:32,483 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:06:32,494 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-27 14:06:32,574 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-27 14:06:32,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-27 14:06:32,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 14:06:32,593 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:06:32,594 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] [2019-12-27 14:06:32,594 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:06:32,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:06:32,601 INFO L82 PathProgramCache]: Analyzing trace with hash -771073264, now seen corresponding path program 1 times [2019-12-27 14:06:32,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:06:32,612 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519502855] [2019-12-27 14:06:32,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:06:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:06:33,008 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 14:06:33,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519502855] [2019-12-27 14:06:33,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:06:33,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 14:06:33,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058299458] [2019-12-27 14:06:33,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 14:06:33,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:06:33,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 14:06:33,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 14:06:33,046 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-27 14:06:33,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:06:33,211 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-27 14:06:33,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 14:06:33,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-27 14:06:33,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:06:33,253 INFO L225 Difference]: With dead ends: 1295 [2019-12-27 14:06:33,253 INFO L226 Difference]: Without dead ends: 601 [2019-12-27 14:06:33,257 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:06:33,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-27 14:06:33,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-27 14:06:33,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-27 14:06:33,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-27 14:06:33,389 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-27 14:06:33,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:06:33,390 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-27 14:06:33,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 14:06:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-27 14:06:33,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 14:06:33,393 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:06:33,394 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 14:06:33,394 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:06:33,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:06:33,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1342943045, now seen corresponding path program 1 times [2019-12-27 14:06:33,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:06:33,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958540811] [2019-12-27 14:06:33,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:06:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:06:33,566 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 14:06:33,566 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958540811] [2019-12-27 14:06:33,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:06:33,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 14:06:33,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425141054] [2019-12-27 14:06:33,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 14:06:33,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:06:33,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 14:06:33,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:06:33,570 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-27 14:06:33,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:06:33,637 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-27 14:06:33,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 14:06:33,638 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-27 14:06:33,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:06:33,642 INFO L225 Difference]: With dead ends: 601 [2019-12-27 14:06:33,642 INFO L226 Difference]: Without dead ends: 538 [2019-12-27 14:06:33,643 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 14:06:33,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-27 14:06:33,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-27 14:06:33,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-27 14:06:33,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-27 14:06:33,665 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-27 14:06:33,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:06:33,666 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-27 14:06:33,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 14:06:33,666 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-27 14:06:33,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 14:06:33,668 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:06:33,669 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 14:06:33,669 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:06:33,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:06:33,669 INFO L82 PathProgramCache]: Analyzing trace with hash -837131723, now seen corresponding path program 1 times [2019-12-27 14:06:33,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:06:33,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832190226] [2019-12-27 14:06:33,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:06:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:06:33,855 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 14:06:33,855 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832190226] [2019-12-27 14:06:33,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:06:33,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:06:33,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526237157] [2019-12-27 14:06:33,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:06:33,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:06:33,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:06:33,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:06:33,858 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-27 14:06:33,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:06:33,950 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-27 14:06:33,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:06:33,951 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-27 14:06:33,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:06:33,954 INFO L225 Difference]: With dead ends: 403 [2019-12-27 14:06:33,954 INFO L226 Difference]: Without dead ends: 349 [2019-12-27 14:06:33,954 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 14:06:33,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-27 14:06:33,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-27 14:06:33,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-27 14:06:33,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-27 14:06:33,965 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-27 14:06:33,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:06:33,966 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-27 14:06:33,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:06:33,966 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-27 14:06:33,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:06:33,968 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:06:33,968 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 14:06:33,968 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:06:33,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:06:33,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1670484431, now seen corresponding path program 1 times [2019-12-27 14:06:33,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:06:33,969 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542509596] [2019-12-27 14:06:33,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:06:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:06:34,124 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 14:06:34,124 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542509596] [2019-12-27 14:06:34,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:06:34,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:06:34,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587265619] [2019-12-27 14:06:34,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:06:34,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:06:34,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:06:34,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:06:34,127 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-27 14:06:34,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:06:34,265 INFO L93 Difference]: Finished difference Result 556 states and 1479 transitions. [2019-12-27 14:06:34,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:06:34,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-27 14:06:34,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:06:34,269 INFO L225 Difference]: With dead ends: 556 [2019-12-27 14:06:34,269 INFO L226 Difference]: Without dead ends: 325 [2019-12-27 14:06:34,270 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-27 14:06:34,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-12-27 14:06:34,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2019-12-27 14:06:34,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-12-27 14:06:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-12-27 14:06:34,285 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-12-27 14:06:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:06:34,286 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-12-27 14:06:34,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:06:34,286 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-12-27 14:06:34,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:06:34,288 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:06:34,288 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 14:06:34,288 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:06:34,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:06:34,289 INFO L82 PathProgramCache]: Analyzing trace with hash 866384313, now seen corresponding path program 2 times [2019-12-27 14:06:34,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:06:34,289 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473900491] [2019-12-27 14:06:34,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:06:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:06:34,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:06:34,479 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473900491] [2019-12-27 14:06:34,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:06:34,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:06:34,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425811727] [2019-12-27 14:06:34,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:06:34,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:06:34,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:06:34,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:06:34,481 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 7 states. [2019-12-27 14:06:34,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:06:34,647 INFO L93 Difference]: Finished difference Result 496 states and 1326 transitions. [2019-12-27 14:06:34,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:06:34,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-27 14:06:34,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:06:34,651 INFO L225 Difference]: With dead ends: 496 [2019-12-27 14:06:34,652 INFO L226 Difference]: Without dead ends: 253 [2019-12-27 14:06:34,652 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:06:34,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-12-27 14:06:34,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-12-27 14:06:34,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-12-27 14:06:34,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 672 transitions. [2019-12-27 14:06:34,663 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 672 transitions. Word has length 34 [2019-12-27 14:06:34,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:06:34,664 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 672 transitions. [2019-12-27 14:06:34,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:06:34,665 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 672 transitions. [2019-12-27 14:06:34,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:06:34,666 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:06:34,666 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 14:06:34,671 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:06:34,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:06:34,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1548790957, now seen corresponding path program 3 times [2019-12-27 14:06:34,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:06:34,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984382955] [2019-12-27 14:06:34,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:06:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:06:34,823 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 14:06:34,823 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984382955] [2019-12-27 14:06:34,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:06:34,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 14:06:34,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907483104] [2019-12-27 14:06:34,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 14:06:34,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:06:34,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 14:06:34,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 14:06:34,825 INFO L87 Difference]: Start difference. First operand 253 states and 672 transitions. Second operand 8 states. [2019-12-27 14:06:34,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:06:34,925 INFO L93 Difference]: Finished difference Result 199 states and 510 transitions. [2019-12-27 14:06:34,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:06:34,925 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 14:06:34,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:06:34,926 INFO L225 Difference]: With dead ends: 199 [2019-12-27 14:06:34,926 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 14:06:34,926 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 14:06:34,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 14:06:34,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 14:06:34,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 14:06:34,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 14:06:34,927 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-27 14:06:34,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:06:34,927 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 14:06:34,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 14:06:34,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 14:06:34,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 14:06:34,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 02:06:34 BasicIcfg [2019-12-27 14:06:34,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 14:06:34,938 INFO L168 Benchmark]: Toolchain (without parser) took 3856.95 ms. Allocated memory was 147.8 MB in the beginning and 245.9 MB in the end (delta: 98.0 MB). Free memory was 104.3 MB in the beginning and 153.4 MB in the end (delta: -49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 7.1 GB. [2019-12-27 14:06:34,939 INFO L168 Benchmark]: CDTParser took 1.53 ms. Allocated memory is still 147.8 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 14:06:34,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.01 ms. Allocated memory was 147.8 MB in the beginning and 206.0 MB in the end (delta: 58.2 MB). Free memory was 104.1 MB in the beginning and 161.2 MB in the end (delta: -57.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 14:06:34,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.39 ms. Allocated memory is still 206.0 MB. Free memory was 161.2 MB in the beginning and 159.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 14:06:34,947 INFO L168 Benchmark]: Boogie Preprocessor took 29.29 ms. Allocated memory is still 206.0 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 14:06:34,948 INFO L168 Benchmark]: RCFGBuilder took 478.31 ms. Allocated memory is still 206.0 MB. Free memory was 157.3 MB in the beginning and 137.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2019-12-27 14:06:34,949 INFO L168 Benchmark]: TraceAbstraction took 2575.60 ms. Allocated memory was 206.0 MB in the beginning and 245.9 MB in the end (delta: 39.8 MB). Free memory was 136.8 MB in the beginning and 153.4 MB in the end (delta: -16.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-12-27 14:06:34,962 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.53 ms. Allocated memory is still 147.8 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.01 ms. Allocated memory was 147.8 MB in the beginning and 206.0 MB in the end (delta: 58.2 MB). Free memory was 104.1 MB in the beginning and 161.2 MB in the end (delta: -57.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 73.39 ms. Allocated memory is still 206.0 MB. Free memory was 161.2 MB in the beginning and 159.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.29 ms. Allocated memory is still 206.0 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 478.31 ms. Allocated memory is still 206.0 MB. Free memory was 157.3 MB in the beginning and 137.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2575.60 ms. Allocated memory was 206.0 MB in the beginning and 245.9 MB in the end (delta: 39.8 MB). Free memory was 136.8 MB in the beginning and 153.4 MB in the end (delta: -16.6 MB). Peak memory consumption was 23.3 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 309 SDtfs, 375 SDslu, 829 SDs, 0 SdLazy, 104 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 17646 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...