/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:16:52,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:16:52,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:16:52,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:16:52,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:16:52,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:16:52,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:16:52,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:16:52,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:16:52,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:16:52,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:16:52,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:16:52,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:16:52,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:16:52,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:16:52,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:16:52,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:16:52,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:16:52,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:16:52,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:16:52,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:16:52,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:16:52,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:16:52,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:16:52,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:16:52,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:16:52,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:16:52,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:16:52,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:16:52,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:16:52,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:16:52,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:16:52,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:16:52,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:16:52,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:16:52,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:16:52,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:16:52,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:16:52,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:16:52,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:16:52,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:16:52,977 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:16:52,998 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:16:52,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:16:53,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:16:53,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:16:53,000 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:16:53,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:16:53,001 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:16:53,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:16:53,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:16:53,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:16:53,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:16:53,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:16:53,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:16:53,002 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:16:53,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:16:53,002 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:16:53,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:16:53,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:16:53,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:16:53,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:16:53,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:16:53,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:16:53,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:16:53,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:16:53,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:16:53,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:16:53,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:16:53,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:16:53,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:16:53,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:16:53,328 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:16:53,332 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:16:53,334 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:16:53,334 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:16:53,335 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2020-10-15 22:16:53,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79f4cb8e/2b55344905324de7a2838d68a94bfbfd/FLAG2ddc8fbf2 [2020-10-15 22:16:53,960 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:16:53,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2020-10-15 22:16:53,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79f4cb8e/2b55344905324de7a2838d68a94bfbfd/FLAG2ddc8fbf2 [2020-10-15 22:16:54,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79f4cb8e/2b55344905324de7a2838d68a94bfbfd [2020-10-15 22:16:54,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:16:54,333 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:16:54,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:16:54,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:16:54,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:16:54,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:16:54" (1/1) ... [2020-10-15 22:16:54,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507d2803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:54, skipping insertion in model container [2020-10-15 22:16:54,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:16:54" (1/1) ... [2020-10-15 22:16:54,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:16:54,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:16:54,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:16:54,877 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:16:54,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:16:55,043 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:16:55,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:55 WrapperNode [2020-10-15 22:16:55,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:16:55,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:16:55,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:16:55,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:16:55,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:55" (1/1) ... [2020-10-15 22:16:55,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:55" (1/1) ... [2020-10-15 22:16:55,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:16:55,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:16:55,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:16:55,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:16:55,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:55" (1/1) ... [2020-10-15 22:16:55,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:55" (1/1) ... [2020-10-15 22:16:55,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:55" (1/1) ... [2020-10-15 22:16:55,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:55" (1/1) ... [2020-10-15 22:16:55,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:55" (1/1) ... [2020-10-15 22:16:55,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:55" (1/1) ... [2020-10-15 22:16:55,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:55" (1/1) ... [2020-10-15 22:16:55,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:16:55,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:16:55,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:16:55,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:16:55,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:55" (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 [2020-10-15 22:16:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:16:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:16:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:16:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:16:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:16:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:16:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:16:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:16:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:16:55,219 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:16:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:16:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:16:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:16:55,226 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:16:55,580 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:16:55,580 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:16:55,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:16:55 BoogieIcfgContainer [2020-10-15 22:16:55,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:16:55,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:16:55,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:16:55,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:16:55,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:16:54" (1/3) ... [2020-10-15 22:16:55,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e831fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:16:55, skipping insertion in model container [2020-10-15 22:16:55,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:55" (2/3) ... [2020-10-15 22:16:55,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e831fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:16:55, skipping insertion in model container [2020-10-15 22:16:55,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:16:55" (3/3) ... [2020-10-15 22:16:55,591 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2020-10-15 22:16:55,603 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:16:55,604 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:16:55,611 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:16:55,612 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:16:55,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,654 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,654 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,661 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,662 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,668 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,669 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:55,692 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:16:55,711 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:16:55,712 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:16:55,712 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:16:55,712 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:16:55,712 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:16:55,712 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:16:55,712 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:16:55,712 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:16:55,724 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:16:55,726 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 22:16:55,729 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 22:16:55,730 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-15 22:16:55,770 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-15 22:16:55,771 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:16:55,776 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 22:16:55,779 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 22:16:57,278 INFO L132 LiptonReduction]: Checked pairs total: 2362 [2020-10-15 22:16:57,278 INFO L134 LiptonReduction]: Total number of compositions: 57 [2020-10-15 22:16:57,285 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-15 22:16:57,311 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 22:16:57,313 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 22:16:57,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:16:57,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:57,322 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:57,323 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:57,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:57,328 INFO L82 PathProgramCache]: Analyzing trace with hash -389059823, now seen corresponding path program 1 times [2020-10-15 22:16:57,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:57,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097192775] [2020-10-15 22:16:57,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:57,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:16:57,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097192775] [2020-10-15 22:16:57,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:57,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:16:57,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397375435] [2020-10-15 22:16:57,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:16:57,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:57,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:16:57,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:16:57,574 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 22:16:57,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:57,617 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-15 22:16:57,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:16:57,619 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 22:16:57,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:57,636 INFO L225 Difference]: With dead ends: 290 [2020-10-15 22:16:57,636 INFO L226 Difference]: Without dead ends: 226 [2020-10-15 22:16:57,638 INFO L677 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 [2020-10-15 22:16:57,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-15 22:16:57,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-15 22:16:57,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-15 22:16:57,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-15 22:16:57,708 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-15 22:16:57,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:57,709 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-15 22:16:57,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:16:57,710 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-15 22:16:57,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:16:57,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:57,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:57,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:16:57,712 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:57,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:57,713 INFO L82 PathProgramCache]: Analyzing trace with hash 824028903, now seen corresponding path program 1 times [2020-10-15 22:16:57,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:57,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424727730] [2020-10-15 22:16:57,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:57,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:16:57,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424727730] [2020-10-15 22:16:57,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:57,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:16:57,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856514413] [2020-10-15 22:16:57,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:16:57,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:57,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:16:57,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:16:57,847 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-15 22:16:57,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:57,857 INFO L93 Difference]: Finished difference Result 220 states and 604 transitions. [2020-10-15 22:16:57,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:16:57,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-15 22:16:57,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:57,861 INFO L225 Difference]: With dead ends: 220 [2020-10-15 22:16:57,861 INFO L226 Difference]: Without dead ends: 220 [2020-10-15 22:16:57,862 INFO L677 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 [2020-10-15 22:16:57,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-15 22:16:57,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-10-15 22:16:57,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-15 22:16:57,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 604 transitions. [2020-10-15 22:16:57,887 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 604 transitions. Word has length 9 [2020-10-15 22:16:57,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:57,888 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 604 transitions. [2020-10-15 22:16:57,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:16:57,888 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 604 transitions. [2020-10-15 22:16:57,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:16:57,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:57,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:57,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:16:57,890 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:57,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:57,891 INFO L82 PathProgramCache]: Analyzing trace with hash -224925294, now seen corresponding path program 1 times [2020-10-15 22:16:57,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:57,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531465591] [2020-10-15 22:16:57,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:57,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:16:57,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531465591] [2020-10-15 22:16:57,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:57,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:16:57,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157932064] [2020-10-15 22:16:57,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:16:57,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:57,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:16:57,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:16:57,965 INFO L87 Difference]: Start difference. First operand 220 states and 604 transitions. Second operand 4 states. [2020-10-15 22:16:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:58,006 INFO L93 Difference]: Finished difference Result 240 states and 599 transitions. [2020-10-15 22:16:58,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:16:58,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 22:16:58,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:58,009 INFO L225 Difference]: With dead ends: 240 [2020-10-15 22:16:58,009 INFO L226 Difference]: Without dead ends: 176 [2020-10-15 22:16:58,009 INFO L677 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 [2020-10-15 22:16:58,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-10-15 22:16:58,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2020-10-15 22:16:58,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-10-15 22:16:58,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 428 transitions. [2020-10-15 22:16:58,024 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 428 transitions. Word has length 10 [2020-10-15 22:16:58,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:58,024 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 428 transitions. [2020-10-15 22:16:58,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:16:58,025 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 428 transitions. [2020-10-15 22:16:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:16:58,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:58,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:58,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:16:58,027 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:58,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:58,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1617246421, now seen corresponding path program 1 times [2020-10-15 22:16:58,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:58,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441989005] [2020-10-15 22:16:58,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:58,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:16:58,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441989005] [2020-10-15 22:16:58,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:58,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:16:58,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817195669] [2020-10-15 22:16:58,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:16:58,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:58,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:16:58,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:16:58,101 INFO L87 Difference]: Start difference. First operand 176 states and 428 transitions. Second operand 3 states. [2020-10-15 22:16:58,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:58,114 INFO L93 Difference]: Finished difference Result 225 states and 522 transitions. [2020-10-15 22:16:58,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:16:58,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 22:16:58,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:58,116 INFO L225 Difference]: With dead ends: 225 [2020-10-15 22:16:58,117 INFO L226 Difference]: Without dead ends: 183 [2020-10-15 22:16:58,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:16:58,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-10-15 22:16:58,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 171. [2020-10-15 22:16:58,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-15 22:16:58,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 396 transitions. [2020-10-15 22:16:58,148 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 396 transitions. Word has length 11 [2020-10-15 22:16:58,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:58,148 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 396 transitions. [2020-10-15 22:16:58,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:16:58,149 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 396 transitions. [2020-10-15 22:16:58,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:16:58,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:58,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:58,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:16:58,153 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:58,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:58,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1444727206, now seen corresponding path program 1 times [2020-10-15 22:16:58,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:58,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504574412] [2020-10-15 22:16:58,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:58,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:16:58,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504574412] [2020-10-15 22:16:58,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:58,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:16:58,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398875785] [2020-10-15 22:16:58,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:16:58,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:58,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:16:58,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:16:58,224 INFO L87 Difference]: Start difference. First operand 171 states and 396 transitions. Second operand 5 states. [2020-10-15 22:16:58,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:58,270 INFO L93 Difference]: Finished difference Result 162 states and 347 transitions. [2020-10-15 22:16:58,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:16:58,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-15 22:16:58,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:58,272 INFO L225 Difference]: With dead ends: 162 [2020-10-15 22:16:58,272 INFO L226 Difference]: Without dead ends: 125 [2020-10-15 22:16:58,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:16:58,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-15 22:16:58,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-15 22:16:58,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-15 22:16:58,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 263 transitions. [2020-10-15 22:16:58,279 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 263 transitions. Word has length 12 [2020-10-15 22:16:58,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:58,279 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 263 transitions. [2020-10-15 22:16:58,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:16:58,280 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 263 transitions. [2020-10-15 22:16:58,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:16:58,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:58,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:58,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:16:58,282 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:58,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:58,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1109140729, now seen corresponding path program 1 times [2020-10-15 22:16:58,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:58,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662682130] [2020-10-15 22:16:58,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:58,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:16:58,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662682130] [2020-10-15 22:16:58,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:58,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:16:58,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880964257] [2020-10-15 22:16:58,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:16:58,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:58,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:16:58,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:16:58,341 INFO L87 Difference]: Start difference. First operand 125 states and 263 transitions. Second operand 3 states. [2020-10-15 22:16:58,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:58,354 INFO L93 Difference]: Finished difference Result 157 states and 314 transitions. [2020-10-15 22:16:58,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:16:58,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-15 22:16:58,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:58,355 INFO L225 Difference]: With dead ends: 157 [2020-10-15 22:16:58,356 INFO L226 Difference]: Without dead ends: 120 [2020-10-15 22:16:58,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:16:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-15 22:16:58,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2020-10-15 22:16:58,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-15 22:16:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 233 transitions. [2020-10-15 22:16:58,365 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 233 transitions. Word has length 14 [2020-10-15 22:16:58,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:58,365 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 233 transitions. [2020-10-15 22:16:58,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:16:58,365 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 233 transitions. [2020-10-15 22:16:58,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:16:58,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:58,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:58,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:16:58,369 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:58,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:58,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1574578981, now seen corresponding path program 1 times [2020-10-15 22:16:58,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:58,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030877885] [2020-10-15 22:16:58,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:58,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:16:58,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030877885] [2020-10-15 22:16:58,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:58,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:16:58,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999630188] [2020-10-15 22:16:58,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:16:58,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:58,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:16:58,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:16:58,480 INFO L87 Difference]: Start difference. First operand 118 states and 233 transitions. Second operand 6 states. [2020-10-15 22:16:58,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:58,538 INFO L93 Difference]: Finished difference Result 112 states and 219 transitions. [2020-10-15 22:16:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:16:58,539 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-15 22:16:58,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:58,540 INFO L225 Difference]: With dead ends: 112 [2020-10-15 22:16:58,540 INFO L226 Difference]: Without dead ends: 36 [2020-10-15 22:16:58,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:16:58,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-15 22:16:58,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-15 22:16:58,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-15 22:16:58,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-10-15 22:16:58,544 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 14 [2020-10-15 22:16:58,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:58,544 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-10-15 22:16:58,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:16:58,544 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-10-15 22:16:58,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:16:58,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:58,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:58,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:16:58,546 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:58,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:58,546 INFO L82 PathProgramCache]: Analyzing trace with hash 16794271, now seen corresponding path program 1 times [2020-10-15 22:16:58,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:58,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45834449] [2020-10-15 22:16:58,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:58,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:16:58,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45834449] [2020-10-15 22:16:58,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:58,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:16:58,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150130686] [2020-10-15 22:16:58,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:16:58,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:58,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:16:58,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:16:58,583 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-10-15 22:16:58,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:58,592 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-10-15 22:16:58,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:16:58,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 22:16:58,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:58,593 INFO L225 Difference]: With dead ends: 35 [2020-10-15 22:16:58,593 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:16:58,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:16:58,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:16:58,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:16:58,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:16:58,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:16:58,594 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-15 22:16:58,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:58,594 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:16:58,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:16:58,595 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:16:58,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:16:58,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:16:58,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:16:58 BasicIcfg [2020-10-15 22:16:58,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:16:58,602 INFO L168 Benchmark]: Toolchain (without parser) took 4268.19 ms. Allocated memory was 251.7 MB in the beginning and 370.1 MB in the end (delta: 118.5 MB). Free memory was 205.3 MB in the beginning and 255.2 MB in the end (delta: -49.9 MB). Peak memory consumption was 68.6 MB. Max. memory is 14.2 GB. [2020-10-15 22:16:58,602 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:16:58,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.58 ms. Allocated memory was 251.7 MB in the beginning and 314.6 MB in the end (delta: 62.9 MB). Free memory was 205.3 MB in the beginning and 266.0 MB in the end (delta: -60.7 MB). Peak memory consumption was 30.2 MB. Max. memory is 14.2 GB. [2020-10-15 22:16:58,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.15 ms. Allocated memory is still 314.6 MB. Free memory was 266.0 MB in the beginning and 263.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:16:58,605 INFO L168 Benchmark]: Boogie Preprocessor took 25.88 ms. Allocated memory is still 314.6 MB. Free memory was 263.5 MB in the beginning and 261.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:16:58,606 INFO L168 Benchmark]: RCFGBuilder took 431.76 ms. Allocated memory is still 314.6 MB. Free memory was 261.0 MB in the beginning and 239.1 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:16:58,607 INFO L168 Benchmark]: TraceAbstraction took 3014.70 ms. Allocated memory was 314.6 MB in the beginning and 370.1 MB in the end (delta: 55.6 MB). Free memory was 239.1 MB in the beginning and 255.2 MB in the end (delta: -16.1 MB). Peak memory consumption was 39.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:16:58,611 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 710.58 ms. Allocated memory was 251.7 MB in the beginning and 314.6 MB in the end (delta: 62.9 MB). Free memory was 205.3 MB in the beginning and 266.0 MB in the end (delta: -60.7 MB). Peak memory consumption was 30.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 79.15 ms. Allocated memory is still 314.6 MB. Free memory was 266.0 MB in the beginning and 263.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.88 ms. Allocated memory is still 314.6 MB. Free memory was 263.5 MB in the beginning and 261.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 431.76 ms. Allocated memory is still 314.6 MB. Free memory was 261.0 MB in the beginning and 239.1 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3014.70 ms. Allocated memory was 314.6 MB in the beginning and 370.1 MB in the end (delta: 55.6 MB). Free memory was 239.1 MB in the beginning and 255.2 MB in the end (delta: -16.1 MB). Peak memory consumption was 39.5 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 859 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 59 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 57 TotalNumberOfCompositions, 2362 MoverChecksTotal - 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 157 SDtfs, 114 SDslu, 178 SDs, 0 SdLazy, 97 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 8 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 2567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...