/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.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:12:41,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:12:41,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:12:41,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:12:41,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:12:41,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:12:41,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:12:41,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:12:41,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:12:41,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:12:41,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:12:41,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:12:41,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:12:41,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:12:41,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:12:41,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:12:41,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:12:41,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:12:41,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:12:41,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:12:41,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:12:41,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:12:41,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:12:41,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:12:41,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 15:12:41,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 15:12:41,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 15:12:41,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 15:12:41,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 15:12:41,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 15:12:41,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:12:41,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:12:41,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:12:41,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:12:41,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:12:41,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:12:41,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:12:41,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:12:41,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:12:41,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:12:41,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:12:41,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 15:12:41,880 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:12:41,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:12:41,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:12:41,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:12:41,886 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:12:41,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:12:41,886 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:12:41,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:12:41,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:12:41,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:12:41,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:12:41,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:12:41,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:12:41,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:12:41,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:12:41,888 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:12:41,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:12:41,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:12:41,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:12:41,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:12:41,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:12:41,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:12:41,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:12:41,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:12:41,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:12:41,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:12:41,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:12:41,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:12:41,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:12:41,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:12:42,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:12:42,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:12:42,393 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:12:42,395 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:12:42,395 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:12:42,397 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2020-09-11 15:12:42,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a18438e3/63cae86f053d4525b7cea5a7f09c37f8/FLAG8ab126809 [2020-09-11 15:12:43,101 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:12:43,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2020-09-11 15:12:43,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a18438e3/63cae86f053d4525b7cea5a7f09c37f8/FLAG8ab126809 [2020-09-11 15:12:43,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a18438e3/63cae86f053d4525b7cea5a7f09c37f8 [2020-09-11 15:12:43,389 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:12:43,395 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:12:43,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:12:43,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:12:43,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:12:43,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:12:43" (1/1) ... [2020-09-11 15:12:43,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ece116e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:43, skipping insertion in model container [2020-09-11 15:12:43,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:12:43" (1/1) ... [2020-09-11 15:12:43,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:12:43,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:12:44,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:12:44,058 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:12:44,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:12:44,217 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:12:44,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:44 WrapperNode [2020-09-11 15:12:44,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:12:44,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:12:44,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:12:44,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:12:44,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:44" (1/1) ... [2020-09-11 15:12:44,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:44" (1/1) ... [2020-09-11 15:12:44,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:12:44,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:12:44,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:12:44,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:12:44,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:44" (1/1) ... [2020-09-11 15:12:44,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:44" (1/1) ... [2020-09-11 15:12:44,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:44" (1/1) ... [2020-09-11 15:12:44,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:44" (1/1) ... [2020-09-11 15:12:44,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:44" (1/1) ... [2020-09-11 15:12:44,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:44" (1/1) ... [2020-09-11 15:12:44,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:44" (1/1) ... [2020-09-11 15:12:44,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:12:44,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:12:44,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:12:44,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:12:44,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-11 15:12:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:12:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:12:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:12:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:12:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 15:12:44,433 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 15:12:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 15:12:44,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 15:12:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 15:12:44,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 15:12:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:12:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:12:44,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:12:44,437 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 15:12:44,896 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:12:44,896 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 15:12:44,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:12:44 BoogieIcfgContainer [2020-09-11 15:12:44,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:12:44,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:12:44,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:12:44,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:12:44,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:12:43" (1/3) ... [2020-09-11 15:12:44,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52baf9b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:12:44, skipping insertion in model container [2020-09-11 15:12:44,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:12:44" (2/3) ... [2020-09-11 15:12:44,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52baf9b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:12:44, skipping insertion in model container [2020-09-11 15:12:44,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:12:44" (3/3) ... [2020-09-11 15:12:44,914 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2020-09-11 15:12:44,926 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:12:44,926 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:12:44,937 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:12:44,938 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:12:44,977 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,977 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,977 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,985 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,985 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,992 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,993 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,993 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:44,993 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:45,009 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:45,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:45,010 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:45,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:45,024 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:45,024 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:45,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:45,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:12:45,046 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 15:12:45,071 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:12:45,071 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:12:45,071 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:12:45,071 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:12:45,072 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:12:45,072 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:12:45,072 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:12:45,072 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:12:45,090 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-11 15:12:45,092 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-11 15:12:45,142 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-11 15:12:45,143 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:12:45,148 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 15:12:45,151 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-11 15:12:45,173 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-11 15:12:45,174 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:12:45,174 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 15:12:45,177 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-11 15:12:45,178 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:12:46,745 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-11 15:12:46,874 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-09-11 15:12:46,875 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-11 15:12:46,880 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-11 15:12:46,909 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-11 15:12:46,911 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-11 15:12:46,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 15:12:46,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:12:46,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:12:46,923 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:12:46,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:12:46,931 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-09-11 15:12:46,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:12:46,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034760641] [2020-09-11 15:12:46,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:12:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:12:47,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:12:47,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034760641] [2020-09-11 15:12:47,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:12:47,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:12:47,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139565182] [2020-09-11 15:12:47,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-11 15:12:47,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:12:47,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-11 15:12:47,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 15:12:47,191 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-11 15:12:47,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:12:47,232 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-11 15:12:47,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-11 15:12:47,234 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-11 15:12:47,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:12:47,257 INFO L225 Difference]: With dead ends: 362 [2020-09-11 15:12:47,257 INFO L226 Difference]: Without dead ends: 298 [2020-09-11 15:12:47,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 15:12:47,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-11 15:12:47,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-11 15:12:47,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-11 15:12:47,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-11 15:12:47,360 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-11 15:12:47,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:12:47,363 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-11 15:12:47,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-11 15:12:47,363 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-11 15:12:47,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 15:12:47,365 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:12:47,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:12:47,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:12:47,366 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:12:47,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:12:47,367 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-09-11 15:12:47,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:12:47,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963637387] [2020-09-11 15:12:47,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:12:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:12:47,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:12:47,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963637387] [2020-09-11 15:12:47,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:12:47,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:12:47,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513217961] [2020-09-11 15:12:47,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:12:47,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:12:47,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:12:47,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:12:47,550 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 5 states. [2020-09-11 15:12:47,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:12:47,632 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-09-11 15:12:47,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 15:12:47,633 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-11 15:12:47,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:12:47,636 INFO L225 Difference]: With dead ends: 330 [2020-09-11 15:12:47,637 INFO L226 Difference]: Without dead ends: 266 [2020-09-11 15:12:47,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:12:47,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-11 15:12:47,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-09-11 15:12:47,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-11 15:12:47,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-09-11 15:12:47,656 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-09-11 15:12:47,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:12:47,656 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-09-11 15:12:47,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:12:47,657 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-09-11 15:12:47,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 15:12:47,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:12:47,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:12:47,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:12:47,659 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:12:47,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:12:47,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-09-11 15:12:47,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:12:47,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929927336] [2020-09-11 15:12:47,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:12:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:12:47,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:12:47,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929927336] [2020-09-11 15:12:47,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:12:47,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:12:47,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124790501] [2020-09-11 15:12:47,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 15:12:47,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:12:47,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 15:12:47,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:12:47,821 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 6 states. [2020-09-11 15:12:47,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:12:47,937 INFO L93 Difference]: Finished difference Result 350 states and 940 transitions. [2020-09-11 15:12:47,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-11 15:12:47,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-09-11 15:12:47,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:12:47,939 INFO L225 Difference]: With dead ends: 350 [2020-09-11 15:12:47,939 INFO L226 Difference]: Without dead ends: 182 [2020-09-11 15:12:47,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-11 15:12:47,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-11 15:12:47,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-11 15:12:47,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-11 15:12:47,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 458 transitions. [2020-09-11 15:12:47,949 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 458 transitions. Word has length 10 [2020-09-11 15:12:47,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:12:47,949 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 458 transitions. [2020-09-11 15:12:47,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 15:12:47,949 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 458 transitions. [2020-09-11 15:12:47,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:12:47,951 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:12:47,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:12:47,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:12:47,951 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:12:47,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:12:47,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1670897012, now seen corresponding path program 1 times [2020-09-11 15:12:47,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:12:47,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293069893] [2020-09-11 15:12:47,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:12:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:12:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:12:48,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293069893] [2020-09-11 15:12:48,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:12:48,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:12:48,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864211996] [2020-09-11 15:12:48,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:12:48,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:12:48,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:12:48,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:12:48,022 INFO L87 Difference]: Start difference. First operand 182 states and 458 transitions. Second operand 5 states. [2020-09-11 15:12:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:12:48,081 INFO L93 Difference]: Finished difference Result 233 states and 559 transitions. [2020-09-11 15:12:48,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 15:12:48,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-11 15:12:48,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:12:48,083 INFO L225 Difference]: With dead ends: 233 [2020-09-11 15:12:48,083 INFO L226 Difference]: Without dead ends: 92 [2020-09-11 15:12:48,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:12:48,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-11 15:12:48,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-09-11 15:12:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-11 15:12:48,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 210 transitions. [2020-09-11 15:12:48,088 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 210 transitions. Word has length 12 [2020-09-11 15:12:48,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:12:48,089 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 210 transitions. [2020-09-11 15:12:48,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:12:48,089 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 210 transitions. [2020-09-11 15:12:48,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 15:12:48,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:12:48,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:12:48,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 15:12:48,091 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:12:48,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:12:48,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1277780743, now seen corresponding path program 1 times [2020-09-11 15:12:48,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:12:48,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426225247] [2020-09-11 15:12:48,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:12:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:12:48,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:12:48,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426225247] [2020-09-11 15:12:48,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:12:48,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:12:48,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181476581] [2020-09-11 15:12:48,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:12:48,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:12:48,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:12:48,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:12:48,189 INFO L87 Difference]: Start difference. First operand 92 states and 210 transitions. Second operand 5 states. [2020-09-11 15:12:48,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:12:48,230 INFO L93 Difference]: Finished difference Result 77 states and 170 transitions. [2020-09-11 15:12:48,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:12:48,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-11 15:12:48,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:12:48,235 INFO L225 Difference]: With dead ends: 77 [2020-09-11 15:12:48,235 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:12:48,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:12:48,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:12:48,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:12:48,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:12:48,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:12:48,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-11 15:12:48,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:12:48,237 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:12:48,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:12:48,237 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:12:48,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:12:48,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 15:12:48,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:12:48 BasicIcfg [2020-09-11 15:12:48,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:12:48,254 INFO L168 Benchmark]: Toolchain (without parser) took 4861.14 ms. Allocated memory was 139.5 MB in the beginning and 248.0 MB in the end (delta: 108.5 MB). Free memory was 101.2 MB in the beginning and 200.9 MB in the end (delta: -99.6 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2020-09-11 15:12:48,255 INFO L168 Benchmark]: CDTParser took 1.50 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 15:12:48,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 823.57 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.6 MB in the beginning and 161.9 MB in the end (delta: -61.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:12:48,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.68 ms. Allocated memory is still 204.5 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 15:12:48,259 INFO L168 Benchmark]: Boogie Preprocessor took 33.19 ms. Allocated memory is still 204.5 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-11 15:12:48,261 INFO L168 Benchmark]: RCFGBuilder took 568.89 ms. Allocated memory is still 204.5 MB. Free memory was 158.6 MB in the beginning and 136.2 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-09-11 15:12:48,262 INFO L168 Benchmark]: TraceAbstraction took 3345.14 ms. Allocated memory was 204.5 MB in the beginning and 248.0 MB in the end (delta: 43.5 MB). Free memory was 135.6 MB in the beginning and 200.9 MB in the end (delta: -65.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 15:12:48,269 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 823.57 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.6 MB in the beginning and 161.9 MB in the end (delta: -61.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 79.68 ms. Allocated memory is still 204.5 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.19 ms. Allocated memory is still 204.5 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 568.89 ms. Allocated memory is still 204.5 MB. Free memory was 158.6 MB in the beginning and 136.2 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3345.14 ms. Allocated memory was 204.5 MB in the beginning and 248.0 MB in the end (delta: 43.5 MB). Free memory was 135.6 MB in the beginning and 200.9 MB in the end (delta: -65.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 688 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 101 SDtfs, 164 SDslu, 177 SDs, 0 SdLazy, 84 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 2061 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...