/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 23:38:24,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 23:38:24,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 23:38:24,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 23:38:24,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 23:38:24,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 23:38:24,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 23:38:24,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 23:38:24,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 23:38:24,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 23:38:24,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 23:38:24,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 23:38:24,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 23:38:24,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 23:38:24,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 23:38:24,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 23:38:24,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 23:38:24,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 23:38:24,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 23:38:24,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 23:38:24,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 23:38:24,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 23:38:24,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 23:38:24,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 23:38:24,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-26 23:38:24,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-26 23:38:24,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-26 23:38:24,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-26 23:38:24,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-26 23:38:24,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-26 23:38:24,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 23:38:24,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 23:38:24,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 23:38:24,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 23:38:24,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 23:38:24,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 23:38:24,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 23:38:24,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 23:38:24,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 23:38:24,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 23:38:24,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 23:38:24,871 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-26 23:38:24,895 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 23:38:24,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 23:38:24,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 23:38:24,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 23:38:24,898 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 23:38:24,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 23:38:24,898 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 23:38:24,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 23:38:24,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 23:38:24,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 23:38:24,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 23:38:24,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 23:38:24,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 23:38:24,900 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 23:38:24,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 23:38:24,901 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 23:38:24,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 23:38:24,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 23:38:24,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 23:38:24,902 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 23:38:24,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 23:38:24,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:38:24,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 23:38:24,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 23:38:24,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 23:38:24,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 23:38:24,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 23:38:24,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 23:38:24,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 23:38:24,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 23:38:25,174 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 23:38:25,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 23:38:25,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 23:38:25,204 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 23:38:25,204 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 23:38:25,205 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2019-12-26 23:38:25,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fc00a613/18216f9fc6e0491caa8a5d2cc0dc51e4/FLAG2c4d33fcf [2019-12-26 23:38:25,814 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 23:38:25,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2019-12-26 23:38:25,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fc00a613/18216f9fc6e0491caa8a5d2cc0dc51e4/FLAG2c4d33fcf [2019-12-26 23:38:26,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fc00a613/18216f9fc6e0491caa8a5d2cc0dc51e4 [2019-12-26 23:38:26,113 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 23:38:26,115 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 23:38:26,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 23:38:26,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 23:38:26,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 23:38:26,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:38:26" (1/1) ... [2019-12-26 23:38:26,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3925f476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26, skipping insertion in model container [2019-12-26 23:38:26,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:38:26" (1/1) ... [2019-12-26 23:38:26,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 23:38:26,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 23:38:26,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:38:26,626 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 23:38:26,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:38:26,775 INFO L208 MainTranslator]: Completed translation [2019-12-26 23:38:26,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26 WrapperNode [2019-12-26 23:38:26,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 23:38:26,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 23:38:26,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 23:38:26,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 23:38:26,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26" (1/1) ... [2019-12-26 23:38:26,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26" (1/1) ... [2019-12-26 23:38:26,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 23:38:26,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 23:38:26,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 23:38:26,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 23:38:26,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26" (1/1) ... [2019-12-26 23:38:26,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26" (1/1) ... [2019-12-26 23:38:26,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26" (1/1) ... [2019-12-26 23:38:26,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26" (1/1) ... [2019-12-26 23:38:26,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26" (1/1) ... [2019-12-26 23:38:26,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26" (1/1) ... [2019-12-26 23:38:26,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26" (1/1) ... [2019-12-26 23:38:26,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 23:38:26,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 23:38:26,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 23:38:26,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 23:38:26,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26" (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 [2019-12-26 23:38:26,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 23:38:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-26 23:38:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 23:38:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 23:38:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-26 23:38:26,927 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-26 23:38:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-26 23:38:26,928 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-26 23:38:26,928 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-26 23:38:26,928 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-26 23:38:26,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-26 23:38:26,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 23:38:26,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 23:38:26,930 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 23:38:27,286 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 23:38:27,287 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 23:38:27,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:38:27 BoogieIcfgContainer [2019-12-26 23:38:27,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 23:38:27,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 23:38:27,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 23:38:27,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 23:38:27,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 11:38:26" (1/3) ... [2019-12-26 23:38:27,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3421c3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:38:27, skipping insertion in model container [2019-12-26 23:38:27,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:38:26" (2/3) ... [2019-12-26 23:38:27,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3421c3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:38:27, skipping insertion in model container [2019-12-26 23:38:27,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:38:27" (3/3) ... [2019-12-26 23:38:27,297 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2019-12-26 23:38:27,305 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 23:38:27,306 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 23:38:27,313 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 23:38:27,314 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 23:38:27,346 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,346 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,347 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,347 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,348 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,348 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,349 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,350 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,350 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,350 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,350 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,351 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,353 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,353 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,354 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,354 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,355 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,355 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,361 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,361 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,361 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,362 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,368 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,368 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,368 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,369 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,375 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,375 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,376 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,376 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:38:27,396 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 23:38:27,418 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 23:38:27,418 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 23:38:27,419 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 23:38:27,419 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 23:38:27,419 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 23:38:27,420 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 23:38:27,420 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 23:38:27,420 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 23:38:27,439 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-26 23:38:27,441 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-26 23:38:27,511 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-26 23:38:27,512 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:38:27,517 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:38:27,520 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-26 23:38:27,537 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-26 23:38:27,537 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:38:27,538 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:38:27,539 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-26 23:38:27,540 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 23:38:29,027 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-26 23:38:29,188 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-26 23:38:29,189 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-26 23:38:29,194 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-26 23:38:29,211 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-26 23:38:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-26 23:38:29,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 23:38:29,236 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:38:29,237 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:38:29,237 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:38:29,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:38:29,244 INFO L82 PathProgramCache]: Analyzing trace with hash 2019279745, now seen corresponding path program 1 times [2019-12-26 23:38:29,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:38:29,255 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773251379] [2019-12-26 23:38:29,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:38:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:38:29,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:38:29,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773251379] [2019-12-26 23:38:29,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:38:29,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:38:29,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135543381] [2019-12-26 23:38:29,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:38:29,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:38:29,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:38:29,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:38:29,580 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-26 23:38:29,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:38:29,622 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-26 23:38:29,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:38:29,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 23:38:29,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:38:29,653 INFO L225 Difference]: With dead ends: 42 [2019-12-26 23:38:29,656 INFO L226 Difference]: Without dead ends: 34 [2019-12-26 23:38:29,658 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:38:29,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-26 23:38:29,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-26 23:38:29,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-26 23:38:29,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-26 23:38:29,700 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-26 23:38:29,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:38:29,701 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-26 23:38:29,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:38:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-26 23:38:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:38:29,702 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:38:29,702 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:38:29,703 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:38:29,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:38:29,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1826755775, now seen corresponding path program 1 times [2019-12-26 23:38:29,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:38:29,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239787112] [2019-12-26 23:38:29,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:38:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:38:29,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:38:29,797 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239787112] [2019-12-26 23:38:29,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:38:29,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:38:29,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456530482] [2019-12-26 23:38:29,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:38:29,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:38:29,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:38:29,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:38:29,801 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-26 23:38:29,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:38:29,823 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-26 23:38:29,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:38:29,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-26 23:38:29,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:38:29,824 INFO L225 Difference]: With dead ends: 36 [2019-12-26 23:38:29,824 INFO L226 Difference]: Without dead ends: 28 [2019-12-26 23:38:29,825 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:38:29,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-26 23:38:29,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-26 23:38:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-26 23:38:29,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-26 23:38:29,830 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-26 23:38:29,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:38:29,831 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-26 23:38:29,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:38:29,831 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-26 23:38:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:38:29,832 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:38:29,832 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:38:29,832 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:38:29,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:38:29,833 INFO L82 PathProgramCache]: Analyzing trace with hash -794534279, now seen corresponding path program 1 times [2019-12-26 23:38:29,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:38:29,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990511869] [2019-12-26 23:38:29,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:38:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:38:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:38:29,890 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990511869] [2019-12-26 23:38:29,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:38:29,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:38:29,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856322218] [2019-12-26 23:38:29,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:38:29,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:38:29,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:38:29,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:38:29,892 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-26 23:38:29,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:38:29,898 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-26 23:38:29,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:38:29,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-26 23:38:29,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:38:29,899 INFO L225 Difference]: With dead ends: 27 [2019-12-26 23:38:29,899 INFO L226 Difference]: Without dead ends: 27 [2019-12-26 23:38:29,900 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:38:29,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-26 23:38:29,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-26 23:38:29,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-26 23:38:29,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-26 23:38:29,904 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-26 23:38:29,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:38:29,904 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-26 23:38:29,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:38:29,905 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-26 23:38:29,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:38:29,905 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:38:29,906 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:38:29,906 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:38:29,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:38:29,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1700901458, now seen corresponding path program 1 times [2019-12-26 23:38:29,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:38:29,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382673742] [2019-12-26 23:38:29,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:38:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:38:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:38:29,994 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382673742] [2019-12-26 23:38:29,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:38:29,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:38:29,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332824429] [2019-12-26 23:38:29,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:38:29,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:38:29,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:38:29,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:38:29,997 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-26 23:38:30,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:38:30,016 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-26 23:38:30,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:38:30,017 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:38:30,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:38:30,017 INFO L225 Difference]: With dead ends: 29 [2019-12-26 23:38:30,018 INFO L226 Difference]: Without dead ends: 17 [2019-12-26 23:38:30,018 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:38:30,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-26 23:38:30,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-26 23:38:30,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-26 23:38:30,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-26 23:38:30,021 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-26 23:38:30,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:38:30,021 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-26 23:38:30,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:38:30,022 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-26 23:38:30,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:38:30,022 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:38:30,022 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:38:30,023 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:38:30,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:38:30,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1139321736, now seen corresponding path program 2 times [2019-12-26 23:38:30,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:38:30,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767918007] [2019-12-26 23:38:30,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:38:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:38:30,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:38:30,065 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767918007] [2019-12-26 23:38:30,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:38:30,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:38:30,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575322844] [2019-12-26 23:38:30,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:38:30,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:38:30,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:38:30,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:38:30,067 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-26 23:38:30,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:38:30,084 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-26 23:38:30,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:38:30,085 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:38:30,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:38:30,085 INFO L225 Difference]: With dead ends: 16 [2019-12-26 23:38:30,085 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 23:38:30,086 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:38:30,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 23:38:30,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 23:38:30,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 23:38:30,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 23:38:30,087 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 23:38:30,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:38:30,087 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 23:38:30,087 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:38:30,087 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 23:38:30,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 23:38:30,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 11:38:30 BasicIcfg [2019-12-26 23:38:30,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 23:38:30,094 INFO L168 Benchmark]: Toolchain (without parser) took 3979.34 ms. Allocated memory was 137.9 MB in the beginning and 247.5 MB in the end (delta: 109.6 MB). Free memory was 99.9 MB in the beginning and 143.7 MB in the end (delta: -43.9 MB). Peak memory consumption was 65.7 MB. Max. memory is 7.1 GB. [2019-12-26 23:38:30,095 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-26 23:38:30,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.16 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 99.7 MB in the beginning and 160.4 MB in the end (delta: -60.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-26 23:38:30,097 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.56 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 158.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-12-26 23:38:30,098 INFO L168 Benchmark]: Boogie Preprocessor took 26.37 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-26 23:38:30,099 INFO L168 Benchmark]: RCFGBuilder took 439.52 ms. Allocated memory is still 203.4 MB. Free memory was 156.8 MB in the beginning and 135.9 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-26 23:38:30,100 INFO L168 Benchmark]: TraceAbstraction took 2802.37 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 135.3 MB in the beginning and 143.7 MB in the end (delta: -8.5 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2019-12-26 23:38:30,104 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 661.16 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 99.7 MB in the beginning and 160.4 MB in the end (delta: -60.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.56 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 158.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.37 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 439.52 ms. Allocated memory is still 203.4 MB. Free memory was 156.8 MB in the beginning and 135.9 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2802.37 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 135.3 MB in the beginning and 143.7 MB in the end (delta: -8.5 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 226 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 47 TotalNumberOfCompositions - 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: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 29 SDslu, 21 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...