/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_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 14:38:23,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 14:38:23,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 14:38:23,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 14:38:23,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 14:38:23,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 14:38:23,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 14:38:23,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 14:38:23,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 14:38:23,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 14:38:23,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 14:38:23,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 14:38:23,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 14:38:23,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 14:38:23,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 14:38:23,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 14:38:23,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 14:38:23,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 14:38:23,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 14:38:23,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 14:38:23,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 14:38:23,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 14:38:23,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 14:38:23,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 14:38:23,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 14:38:23,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 14:38:23,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 14:38:23,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 14:38:23,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 14:38:23,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 14:38:23,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 14:38:23,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 14:38:23,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 14:38:23,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 14:38:23,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 14:38:23,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 14:38:23,883 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 14:38:23,910 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 14:38:23,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 14:38:23,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 14:38:23,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 14:38:23,913 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 14:38:23,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 14:38:23,913 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 14:38:23,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 14:38:23,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 14:38:23,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 14:38:23,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 14:38:23,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 14:38:23,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 14:38:23,916 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 14:38:23,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 14:38:23,917 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 14:38:23,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 14:38:23,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 14:38:23,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 14:38:23,917 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 14:38:23,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 14:38:23,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:38:23,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 14:38:23,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 14:38:23,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 14:38:23,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 14:38:23,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 14:38:23,919 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 14:38:23,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 14:38:23,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 14:38:24,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 14:38:24,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 14:38:24,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 14:38:24,235 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 14:38:24,235 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 14:38:24,236 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2019-12-27 14:38:24,310 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/532572ad0/2cbf67fd99304b7caedda6a968527a00/FLAG0049f7ea8 [2019-12-27 14:38:24,833 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 14:38:24,835 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2019-12-27 14:38:24,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/532572ad0/2cbf67fd99304b7caedda6a968527a00/FLAG0049f7ea8 [2019-12-27 14:38:25,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/532572ad0/2cbf67fd99304b7caedda6a968527a00 [2019-12-27 14:38:25,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 14:38:25,176 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 14:38:25,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 14:38:25,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 14:38:25,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 14:38:25,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:38:25" (1/1) ... [2019-12-27 14:38:25,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59cb0fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25, skipping insertion in model container [2019-12-27 14:38:25,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:38:25" (1/1) ... [2019-12-27 14:38:25,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 14:38:25,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 14:38:25,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:38:25,824 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 14:38:25,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:38:25,961 INFO L208 MainTranslator]: Completed translation [2019-12-27 14:38:25,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25 WrapperNode [2019-12-27 14:38:25,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 14:38:25,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 14:38:25,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 14:38:25,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 14:38:25,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25" (1/1) ... [2019-12-27 14:38:25,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25" (1/1) ... [2019-12-27 14:38:26,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 14:38:26,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 14:38:26,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 14:38:26,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 14:38:26,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25" (1/1) ... [2019-12-27 14:38:26,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25" (1/1) ... [2019-12-27 14:38:26,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25" (1/1) ... [2019-12-27 14:38:26,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25" (1/1) ... [2019-12-27 14:38:26,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25" (1/1) ... [2019-12-27 14:38:26,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25" (1/1) ... [2019-12-27 14:38:26,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25" (1/1) ... [2019-12-27 14:38:26,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 14:38:26,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 14:38:26,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 14:38:26,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 14:38:26,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25" (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 14:38:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 14:38:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 14:38:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 14:38:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 14:38:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 14:38:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 14:38:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 14:38:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 14:38:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 14:38:26,112 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 14:38:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 14:38:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 14:38:26,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 14:38:26,114 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 14:38:26,465 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 14:38:26,466 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 14:38:26,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:38:26 BoogieIcfgContainer [2019-12-27 14:38:26,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 14:38:26,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 14:38:26,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 14:38:26,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 14:38:26,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 02:38:25" (1/3) ... [2019-12-27 14:38:26,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9454ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:38:26, skipping insertion in model container [2019-12-27 14:38:26,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:38:25" (2/3) ... [2019-12-27 14:38:26,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9454ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:38:26, skipping insertion in model container [2019-12-27 14:38:26,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:38:26" (3/3) ... [2019-12-27 14:38:26,477 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_pso.oepc.i [2019-12-27 14:38:26,487 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 14:38:26,487 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 14:38:26,493 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 14:38:26,494 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 14:38:26,540 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,540 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,540 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,541 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,541 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,541 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,545 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,545 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,545 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,546 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,546 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,546 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,547 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,547 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,547 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,547 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,548 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,548 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,552 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,552 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,553 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,553 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,558 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,559 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,559 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,559 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,562 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,562 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,562 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,562 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:38:26,578 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 14:38:26,600 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:38:26,601 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:38:26,601 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:38:26,601 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:38:26,601 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:38:26,601 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:38:26,602 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:38:26,602 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:38:26,613 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-27 14:38:26,691 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-27 14:38:26,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-27 14:38:26,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 14:38:26,710 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:38:26,711 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 14:38:26,711 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:38:26,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:38:26,718 INFO L82 PathProgramCache]: Analyzing trace with hash -856501925, now seen corresponding path program 1 times [2019-12-27 14:38:26,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:38:26,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162718528] [2019-12-27 14:38:26,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:38:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:38:27,093 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 14:38:27,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162718528] [2019-12-27 14:38:27,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:38:27,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 14:38:27,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147267935] [2019-12-27 14:38:27,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 14:38:27,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:38:27,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 14:38:27,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 14:38:27,122 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-27 14:38:27,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:38:27,277 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-27 14:38:27,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 14:38:27,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-27 14:38:27,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:38:27,320 INFO L225 Difference]: With dead ends: 1296 [2019-12-27 14:38:27,320 INFO L226 Difference]: Without dead ends: 602 [2019-12-27 14:38:27,322 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:38:27,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-27 14:38:27,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-27 14:38:27,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-27 14:38:27,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-27 14:38:27,428 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-27 14:38:27,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:38:27,429 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-27 14:38:27,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 14:38:27,430 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-27 14:38:27,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 14:38:27,438 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:38:27,438 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 14:38:27,439 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:38:27,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:38:27,440 INFO L82 PathProgramCache]: Analyzing trace with hash 709357799, now seen corresponding path program 1 times [2019-12-27 14:38:27,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:38:27,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414888819] [2019-12-27 14:38:27,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:38:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:38:27,619 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 14:38:27,619 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414888819] [2019-12-27 14:38:27,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:38:27,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 14:38:27,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937359123] [2019-12-27 14:38:27,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 14:38:27,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:38:27,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 14:38:27,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:38:27,624 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-27 14:38:27,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:38:27,731 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-27 14:38:27,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 14:38:27,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-27 14:38:27,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:38:27,747 INFO L225 Difference]: With dead ends: 602 [2019-12-27 14:38:27,748 INFO L226 Difference]: Without dead ends: 539 [2019-12-27 14:38:27,750 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 14:38:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-27 14:38:27,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-27 14:38:27,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-27 14:38:27,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-27 14:38:27,812 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-27 14:38:27,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:38:27,813 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-27 14:38:27,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 14:38:27,813 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-27 14:38:27,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:38:27,815 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:38:27,815 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 14:38:27,816 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:38:27,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:38:27,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1444603190, now seen corresponding path program 1 times [2019-12-27 14:38:27,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:38:27,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162293618] [2019-12-27 14:38:27,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:38:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:38:27,939 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 14:38:27,940 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162293618] [2019-12-27 14:38:27,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:38:27,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:38:27,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721418143] [2019-12-27 14:38:27,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:38:27,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:38:27,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:38:27,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:38:27,942 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-27 14:38:28,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:38:28,031 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-27 14:38:28,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:38:28,031 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-27 14:38:28,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:38:28,034 INFO L225 Difference]: With dead ends: 404 [2019-12-27 14:38:28,035 INFO L226 Difference]: Without dead ends: 350 [2019-12-27 14:38:28,035 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 14:38:28,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-27 14:38:28,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-27 14:38:28,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-27 14:38:28,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-27 14:38:28,048 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-27 14:38:28,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:38:28,049 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-27 14:38:28,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:38:28,049 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-27 14:38:28,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 14:38:28,050 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:38:28,051 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:38:28,051 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:38:28,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:38:28,051 INFO L82 PathProgramCache]: Analyzing trace with hash 318820434, now seen corresponding path program 1 times [2019-12-27 14:38:28,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:38:28,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564426646] [2019-12-27 14:38:28,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:38:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:38:28,202 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 14:38:28,203 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564426646] [2019-12-27 14:38:28,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:38:28,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:38:28,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183951769] [2019-12-27 14:38:28,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:38:28,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:38:28,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:38:28,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:38:28,207 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 7 states. [2019-12-27 14:38:28,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:38:28,380 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-27 14:38:28,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:38:28,381 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-27 14:38:28,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:38:28,384 INFO L225 Difference]: With dead ends: 521 [2019-12-27 14:38:28,384 INFO L226 Difference]: Without dead ends: 314 [2019-12-27 14:38:28,386 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 [2019-12-27 14:38:28,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-12-27 14:38:28,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 305. [2019-12-27 14:38:28,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2019-12-27 14:38:28,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 781 transitions. [2019-12-27 14:38:28,401 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 781 transitions. Word has length 35 [2019-12-27 14:38:28,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:38:28,401 INFO L462 AbstractCegarLoop]: Abstraction has 305 states and 781 transitions. [2019-12-27 14:38:28,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:38:28,402 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 781 transitions. [2019-12-27 14:38:28,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 14:38:28,403 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:38:28,403 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:38:28,404 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:38:28,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:38:28,404 INFO L82 PathProgramCache]: Analyzing trace with hash 944612746, now seen corresponding path program 2 times [2019-12-27 14:38:28,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:38:28,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633705249] [2019-12-27 14:38:28,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:38:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:38:28,603 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 14:38:28,604 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633705249] [2019-12-27 14:38:28,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:38:28,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:38:28,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434747691] [2019-12-27 14:38:28,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:38:28,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:38:28,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:38:28,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:38:28,608 INFO L87 Difference]: Start difference. First operand 305 states and 781 transitions. Second operand 7 states. [2019-12-27 14:38:28,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:38:28,763 INFO L93 Difference]: Finished difference Result 476 states and 1261 transitions. [2019-12-27 14:38:28,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:38:28,764 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-27 14:38:28,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:38:28,766 INFO L225 Difference]: With dead ends: 476 [2019-12-27 14:38:28,769 INFO L226 Difference]: Without dead ends: 278 [2019-12-27 14:38:28,770 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 [2019-12-27 14:38:28,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-27 14:38:28,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 269. [2019-12-27 14:38:28,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-12-27 14:38:28,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 703 transitions. [2019-12-27 14:38:28,779 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 703 transitions. Word has length 35 [2019-12-27 14:38:28,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:38:28,779 INFO L462 AbstractCegarLoop]: Abstraction has 269 states and 703 transitions. [2019-12-27 14:38:28,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:38:28,780 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 703 transitions. [2019-12-27 14:38:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 14:38:28,782 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:38:28,785 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:38:28,786 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:38:28,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:38:28,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1320097416, now seen corresponding path program 3 times [2019-12-27 14:38:28,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:38:28,792 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227927461] [2019-12-27 14:38:28,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:38:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:38:28,951 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 14:38:28,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227927461] [2019-12-27 14:38:28,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:38:28,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:38:28,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628671113] [2019-12-27 14:38:28,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:38:28,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:38:28,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:38:28,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:38:28,956 INFO L87 Difference]: Start difference. First operand 269 states and 703 transitions. Second operand 7 states. [2019-12-27 14:38:29,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:38:29,081 INFO L93 Difference]: Finished difference Result 215 states and 541 transitions. [2019-12-27 14:38:29,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:38:29,082 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-27 14:38:29,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:38:29,082 INFO L225 Difference]: With dead ends: 215 [2019-12-27 14:38:29,082 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 14:38:29,083 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 [2019-12-27 14:38:29,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 14:38:29,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 14:38:29,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 14:38:29,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 14:38:29,084 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-27 14:38:29,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:38:29,084 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 14:38:29,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:38:29,084 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 14:38:29,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 14:38:29,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 02:38:29 BasicIcfg [2019-12-27 14:38:29,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 14:38:29,100 INFO L168 Benchmark]: Toolchain (without parser) took 3920.56 ms. Allocated memory was 138.4 MB in the beginning and 249.6 MB in the end (delta: 111.1 MB). Free memory was 101.0 MB in the beginning and 154.7 MB in the end (delta: -53.6 MB). Peak memory consumption was 57.5 MB. Max. memory is 7.1 GB. [2019-12-27 14:38:29,101 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 14:38:29,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.45 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 157.6 MB in the end (delta: -57.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-12-27 14:38:29,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.68 ms. Allocated memory is still 202.4 MB. Free memory was 157.6 MB in the beginning and 155.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-27 14:38:29,105 INFO L168 Benchmark]: Boogie Preprocessor took 37.13 ms. Allocated memory is still 202.4 MB. Free memory was 155.3 MB in the beginning and 154.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 14:38:29,107 INFO L168 Benchmark]: RCFGBuilder took 418.33 ms. Allocated memory is still 202.4 MB. Free memory was 154.0 MB in the beginning and 133.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-12-27 14:38:29,107 INFO L168 Benchmark]: TraceAbstraction took 2625.95 ms. Allocated memory was 202.4 MB in the beginning and 249.6 MB in the end (delta: 47.2 MB). Free memory was 132.3 MB in the beginning and 154.7 MB in the end (delta: -22.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2019-12-27 14:38:29,120 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 783.45 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 157.6 MB in the end (delta: -57.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.68 ms. Allocated memory is still 202.4 MB. Free memory was 157.6 MB in the beginning and 155.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.13 ms. Allocated memory is still 202.4 MB. Free memory was 155.3 MB in the beginning and 154.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 418.33 ms. Allocated memory is still 202.4 MB. Free memory was 154.0 MB in the beginning and 133.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2625.95 ms. Allocated memory was 202.4 MB in the beginning and 249.6 MB in the end (delta: 47.2 MB). Free memory was 132.3 MB in the beginning and 154.7 MB in the end (delta: -22.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 327 SDtfs, 348 SDslu, 905 SDs, 0 SdLazy, 119 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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...