/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-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 05:12:33,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 05:12:33,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 05:12:33,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 05:12:33,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 05:12:33,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 05:12:33,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 05:12:33,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 05:12:33,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 05:12:33,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 05:12:33,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 05:12:33,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 05:12:33,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 05:12:33,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 05:12:33,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 05:12:33,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 05:12:33,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 05:12:33,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 05:12:33,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 05:12:33,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 05:12:33,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 05:12:33,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 05:12:33,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 05:12:33,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 05:12:33,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 05:12:33,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 05:12:33,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 05:12:33,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 05:12:33,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 05:12:33,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 05:12:33,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 05:12:33,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 05:12:33,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 05:12:33,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 05:12:33,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 05:12:33,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 05:12:33,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 05:12:33,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 05:12:33,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 05:12:33,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 05:12:33,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 05:12:33,593 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-PN-SemanticLbe-SemanticLooper.epf [2020-10-16 05:12:33,637 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 05:12:33,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 05:12:33,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 05:12:33,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 05:12:33,639 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 05:12:33,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 05:12:33,640 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 05:12:33,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 05:12:33,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 05:12:33,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 05:12:33,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 05:12:33,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 05:12:33,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 05:12:33,642 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 05:12:33,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 05:12:33,643 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 05:12:33,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 05:12:33,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 05:12:33,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 05:12:33,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 05:12:33,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 05:12:33,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:12:33,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 05:12:33,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 05:12:33,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 05:12:33,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 05:12:33,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 05:12:33,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 05:12:33,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 05:12:33,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 05:12:33,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 05:12:33,993 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 05:12:33,997 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 05:12:33,997 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 05:12:33,998 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-10-16 05:12:34,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6aaab044/3957af3e87e94f6b9fcac2ecb6f11bf4/FLAG6c5999f01 [2020-10-16 05:12:34,652 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 05:12:34,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-10-16 05:12:34,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6aaab044/3957af3e87e94f6b9fcac2ecb6f11bf4/FLAG6c5999f01 [2020-10-16 05:12:34,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6aaab044/3957af3e87e94f6b9fcac2ecb6f11bf4 [2020-10-16 05:12:34,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 05:12:34,936 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 05:12:34,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 05:12:34,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 05:12:34,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 05:12:34,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:12:34" (1/1) ... [2020-10-16 05:12:34,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c17228a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:34, skipping insertion in model container [2020-10-16 05:12:34,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:12:34" (1/1) ... [2020-10-16 05:12:34,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 05:12:35,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 05:12:35,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:12:35,481 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 05:12:35,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:12:35,664 INFO L208 MainTranslator]: Completed translation [2020-10-16 05:12:35,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35 WrapperNode [2020-10-16 05:12:35,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 05:12:35,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 05:12:35,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 05:12:35,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 05:12:35,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 05:12:35,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 05:12:35,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 05:12:35,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 05:12:35,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 05:12:35,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 05:12:35,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 05:12:35,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 05:12:35,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (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 [2020-10-16 05:12:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 05:12:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 05:12:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 05:12:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 05:12:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 05:12:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 05:12:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 05:12:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 05:12:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 05:12:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 05:12:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 05:12:35,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 05:12:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 05:12:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 05:12:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 05:12:35,820 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 05:12:36,228 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 05:12:36,229 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 05:12:36,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:12:36 BoogieIcfgContainer [2020-10-16 05:12:36,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 05:12:36,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 05:12:36,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 05:12:36,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 05:12:36,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:12:34" (1/3) ... [2020-10-16 05:12:36,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4800b3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:12:36, skipping insertion in model container [2020-10-16 05:12:36,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (2/3) ... [2020-10-16 05:12:36,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4800b3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:12:36, skipping insertion in model container [2020-10-16 05:12:36,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:12:36" (3/3) ... [2020-10-16 05:12:36,240 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2020-10-16 05:12:36,252 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 05:12:36,260 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 05:12:36,261 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 05:12:36,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,294 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,294 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,296 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,296 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,297 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,297 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,298 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,298 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,298 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,298 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,302 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,303 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,303 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,303 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,311 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,311 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,311 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,312 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,314 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,314 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,314 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,315 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,317 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,317 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,317 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,317 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:36,335 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 05:12:36,357 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:12:36,358 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:12:36,358 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:12:36,358 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:12:36,358 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:12:36,358 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:12:36,359 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:12:36,359 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:12:36,374 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-16 05:12:36,427 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-16 05:12:36,427 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:36,433 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-16 05:12:36,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2020-10-16 05:12:36,443 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2020-10-16 05:12:36,446 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:12:36,449 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 69 transitions, 150 flow [2020-10-16 05:12:36,451 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 69 transitions, 150 flow [2020-10-16 05:12:36,451 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 69 transitions, 150 flow [2020-10-16 05:12:36,476 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2020-10-16 05:12:36,477 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:36,478 INFO L80 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-10-16 05:12:36,480 INFO L117 LiptonReduction]: Number of co-enabled transitions 1392 [2020-10-16 05:12:38,020 INFO L132 LiptonReduction]: Checked pairs total: 3412 [2020-10-16 05:12:38,020 INFO L134 LiptonReduction]: Total number of compositions: 52 [2020-10-16 05:12:38,023 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1580 [2020-10-16 05:12:38,032 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2020-10-16 05:12:38,032 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:38,032 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:38,033 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:38,034 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:38,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:38,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1611556140, now seen corresponding path program 1 times [2020-10-16 05:12:38,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:38,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314741368] [2020-10-16 05:12:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:38,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:38,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314741368] [2020-10-16 05:12:38,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:38,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:12:38,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100849089] [2020-10-16 05:12:38,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 05:12:38,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:38,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 05:12:38,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 05:12:38,305 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 138 [2020-10-16 05:12:38,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 58 flow. Second operand 2 states. [2020-10-16 05:12:38,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:38,310 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 138 [2020-10-16 05:12:38,311 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,333 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2020-10-16 05:12:38,334 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:38,334 INFO L80 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2020-10-16 05:12:38,336 INFO L132 encePairwiseOnDemand]: 137/138 looper letters, 0 selfloop transitions, 0 changer transitions 0/22 dead transitions. [2020-10-16 05:12:38,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 22 transitions, 56 flow [2020-10-16 05:12:38,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 05:12:38,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-16 05:12:38,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 261 transitions. [2020-10-16 05:12:38,359 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9456521739130435 [2020-10-16 05:12:38,360 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 261 transitions. [2020-10-16 05:12:38,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 261 transitions. [2020-10-16 05:12:38,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 261 transitions. [2020-10-16 05:12:38,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-16 05:12:38,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-16 05:12:38,397 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-16 05:12:38,400 INFO L185 Difference]: Start difference. First operand has 35 places, 23 transitions, 58 flow. Second operand 2 states and 261 transitions. [2020-10-16 05:12:38,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 22 transitions, 56 flow [2020-10-16 05:12:38,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 22 transitions, 52 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-16 05:12:38,407 INFO L241 Difference]: Finished difference. Result has 32 places, 22 transitions, 52 flow [2020-10-16 05:12:38,411 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=52, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2020-10-16 05:12:38,412 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places. [2020-10-16 05:12:38,412 INFO L481 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 52 flow [2020-10-16 05:12:38,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 05:12:38,412 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:38,413 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:38,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 05:12:38,414 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:38,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:38,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1581367250, now seen corresponding path program 1 times [2020-10-16 05:12:38,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:38,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738241827] [2020-10-16 05:12:38,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:38,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:38,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738241827] [2020-10-16 05:12:38,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:38,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:12:38,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577877396] [2020-10-16 05:12:38,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:12:38,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:38,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:12:38,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:12:38,529 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 138 [2020-10-16 05:12:38,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 52 flow. Second operand 3 states. [2020-10-16 05:12:38,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:38,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 138 [2020-10-16 05:12:38,530 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,544 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2020-10-16 05:12:38,544 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:38,544 INFO L80 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 05:12:38,545 INFO L132 encePairwiseOnDemand]: 135/138 looper letters, 1 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2020-10-16 05:12:38,545 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 22 transitions, 58 flow [2020-10-16 05:12:38,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:12:38,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:12:38,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2020-10-16 05:12:38,549 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.857487922705314 [2020-10-16 05:12:38,550 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2020-10-16 05:12:38,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2020-10-16 05:12:38,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2020-10-16 05:12:38,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:12:38,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:12:38,553 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:12:38,553 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 52 flow. Second operand 3 states and 355 transitions. [2020-10-16 05:12:38,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 22 transitions, 58 flow [2020-10-16 05:12:38,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 22 transitions, 58 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 05:12:38,559 INFO L241 Difference]: Finished difference. Result has 35 places, 22 transitions, 60 flow [2020-10-16 05:12:38,559 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2020-10-16 05:12:38,560 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2020-10-16 05:12:38,560 INFO L481 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 60 flow [2020-10-16 05:12:38,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:12:38,560 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:38,560 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:38,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 05:12:38,561 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:38,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:38,561 INFO L82 PathProgramCache]: Analyzing trace with hash -2101455728, now seen corresponding path program 1 times [2020-10-16 05:12:38,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:38,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741683173] [2020-10-16 05:12:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:38,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:38,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741683173] [2020-10-16 05:12:38,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:38,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:12:38,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128683892] [2020-10-16 05:12:38,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:12:38,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:38,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:12:38,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:12:38,650 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 138 [2020-10-16 05:12:38,651 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 60 flow. Second operand 4 states. [2020-10-16 05:12:38,651 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:38,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 138 [2020-10-16 05:12:38,652 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,687 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2020-10-16 05:12:38,687 INFO L130 PetriNetUnfolder]: For 4/5 co-relation queries the response was YES. [2020-10-16 05:12:38,688 INFO L80 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 27 events. 0/27 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 2/28 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 05:12:38,688 INFO L132 encePairwiseOnDemand]: 134/138 looper letters, 1 selfloop transitions, 3 changer transitions 1/23 dead transitions. [2020-10-16 05:12:38,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 23 transitions, 75 flow [2020-10-16 05:12:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:12:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:12:38,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 463 transitions. [2020-10-16 05:12:38,691 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8387681159420289 [2020-10-16 05:12:38,691 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 463 transitions. [2020-10-16 05:12:38,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 463 transitions. [2020-10-16 05:12:38,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 463 transitions. [2020-10-16 05:12:38,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:12:38,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:12:38,695 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:12:38,695 INFO L185 Difference]: Start difference. First operand has 35 places, 22 transitions, 60 flow. Second operand 4 states and 463 transitions. [2020-10-16 05:12:38,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 23 transitions, 75 flow [2020-10-16 05:12:38,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 23 transitions, 69 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:12:38,697 INFO L241 Difference]: Finished difference. Result has 38 places, 22 transitions, 70 flow [2020-10-16 05:12:38,697 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=38, PETRI_TRANSITIONS=22} [2020-10-16 05:12:38,697 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2020-10-16 05:12:38,697 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 22 transitions, 70 flow [2020-10-16 05:12:38,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:12:38,697 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:38,698 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:38,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 05:12:38,698 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:38,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:38,698 INFO L82 PathProgramCache]: Analyzing trace with hash -985104395, now seen corresponding path program 1 times [2020-10-16 05:12:38,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:38,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059151514] [2020-10-16 05:12:38,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:38,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:38,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059151514] [2020-10-16 05:12:38,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:38,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:12:38,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912904859] [2020-10-16 05:12:38,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:12:38,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:38,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:12:38,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:12:38,754 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 138 [2020-10-16 05:12:38,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 22 transitions, 70 flow. Second operand 3 states. [2020-10-16 05:12:38,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:38,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 138 [2020-10-16 05:12:38,755 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,765 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2020-10-16 05:12:38,766 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 05:12:38,766 INFO L80 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 22 events. 0/22 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 05:12:38,766 INFO L132 encePairwiseOnDemand]: 135/138 looper letters, 1 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2020-10-16 05:12:38,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 76 flow [2020-10-16 05:12:38,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:12:38,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:12:38,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2020-10-16 05:12:38,769 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.857487922705314 [2020-10-16 05:12:38,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2020-10-16 05:12:38,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2020-10-16 05:12:38,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2020-10-16 05:12:38,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:12:38,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:12:38,771 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:12:38,771 INFO L185 Difference]: Start difference. First operand has 38 places, 22 transitions, 70 flow. Second operand 3 states and 355 transitions. [2020-10-16 05:12:38,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 76 flow [2020-10-16 05:12:38,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 22 transitions, 62 flow, removed 2 selfloop flow, removed 5 redundant places. [2020-10-16 05:12:38,773 INFO L241 Difference]: Finished difference. Result has 36 places, 22 transitions, 64 flow [2020-10-16 05:12:38,773 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=22} [2020-10-16 05:12:38,774 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2020-10-16 05:12:38,774 INFO L481 AbstractCegarLoop]: Abstraction has has 36 places, 22 transitions, 64 flow [2020-10-16 05:12:38,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:12:38,774 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:38,774 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:38,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 05:12:38,775 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:38,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:38,775 INFO L82 PathProgramCache]: Analyzing trace with hash -473465693, now seen corresponding path program 1 times [2020-10-16 05:12:38,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:38,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790715503] [2020-10-16 05:12:38,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:38,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790715503] [2020-10-16 05:12:38,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:38,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:12:38,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453572563] [2020-10-16 05:12:38,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:12:38,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:38,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:12:38,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:12:38,818 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 138 [2020-10-16 05:12:38,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 22 transitions, 64 flow. Second operand 4 states. [2020-10-16 05:12:38,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:38,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 138 [2020-10-16 05:12:38,819 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,842 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2020-10-16 05:12:38,842 INFO L130 PetriNetUnfolder]: For 11/18 co-relation queries the response was YES. [2020-10-16 05:12:38,842 INFO L80 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 27 events. 0/27 cut-off events. For 11/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 48 event pairs, 0 based on Foata normal form. 2/29 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 05:12:38,843 INFO L132 encePairwiseOnDemand]: 134/138 looper letters, 1 selfloop transitions, 3 changer transitions 1/23 dead transitions. [2020-10-16 05:12:38,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 23 transitions, 79 flow [2020-10-16 05:12:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:12:38,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:12:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2020-10-16 05:12:38,845 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8242753623188406 [2020-10-16 05:12:38,846 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2020-10-16 05:12:38,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2020-10-16 05:12:38,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2020-10-16 05:12:38,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:12:38,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:12:38,849 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:12:38,849 INFO L185 Difference]: Start difference. First operand has 36 places, 22 transitions, 64 flow. Second operand 4 states and 455 transitions. [2020-10-16 05:12:38,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 23 transitions, 79 flow [2020-10-16 05:12:38,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 23 transitions, 73 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:12:38,851 INFO L241 Difference]: Finished difference. Result has 39 places, 22 transitions, 74 flow [2020-10-16 05:12:38,851 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2020-10-16 05:12:38,851 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2020-10-16 05:12:38,851 INFO L481 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 74 flow [2020-10-16 05:12:38,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:12:38,851 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:38,852 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:38,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 05:12:38,852 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:38,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:38,852 INFO L82 PathProgramCache]: Analyzing trace with hash -950354355, now seen corresponding path program 1 times [2020-10-16 05:12:38,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:38,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631342266] [2020-10-16 05:12:38,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:38,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:38,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631342266] [2020-10-16 05:12:38,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:38,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:12:38,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797809162] [2020-10-16 05:12:38,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:12:38,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:38,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:12:38,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:12:38,895 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 138 [2020-10-16 05:12:38,895 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 22 transitions, 74 flow. Second operand 4 states. [2020-10-16 05:12:38,895 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:38,895 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 138 [2020-10-16 05:12:38,896 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,919 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2020-10-16 05:12:38,919 INFO L130 PetriNetUnfolder]: For 30/33 co-relation queries the response was YES. [2020-10-16 05:12:38,919 INFO L80 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 30 events. 0/30 cut-off events. For 30/33 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 2/31 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 05:12:38,920 INFO L132 encePairwiseOnDemand]: 134/138 looper letters, 1 selfloop transitions, 3 changer transitions 1/23 dead transitions. [2020-10-16 05:12:38,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 23 transitions, 86 flow [2020-10-16 05:12:38,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:12:38,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:12:38,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2020-10-16 05:12:38,922 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8242753623188406 [2020-10-16 05:12:38,922 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2020-10-16 05:12:38,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2020-10-16 05:12:38,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2020-10-16 05:12:38,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:12:38,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:12:38,925 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:12:38,925 INFO L185 Difference]: Start difference. First operand has 39 places, 22 transitions, 74 flow. Second operand 4 states and 455 transitions. [2020-10-16 05:12:38,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 23 transitions, 86 flow [2020-10-16 05:12:38,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 23 transitions, 74 flow, removed 2 selfloop flow, removed 4 redundant places. [2020-10-16 05:12:38,927 INFO L241 Difference]: Finished difference. Result has 40 places, 22 transitions, 76 flow [2020-10-16 05:12:38,928 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=76, PETRI_PLACES=40, PETRI_TRANSITIONS=22} [2020-10-16 05:12:38,928 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2020-10-16 05:12:38,928 INFO L481 AbstractCegarLoop]: Abstraction has has 40 places, 22 transitions, 76 flow [2020-10-16 05:12:38,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:12:38,928 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:38,928 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:38,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 05:12:38,929 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:38,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:38,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1342483889, now seen corresponding path program 1 times [2020-10-16 05:12:38,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:38,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212904485] [2020-10-16 05:12:38,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:38,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212904485] [2020-10-16 05:12:38,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:38,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:12:38,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003254077] [2020-10-16 05:12:38,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:12:38,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:38,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:12:38,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:12:38,971 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 138 [2020-10-16 05:12:38,972 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 22 transitions, 76 flow. Second operand 4 states. [2020-10-16 05:12:38,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:38,972 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 138 [2020-10-16 05:12:38,972 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,987 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2020-10-16 05:12:38,988 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2020-10-16 05:12:38,988 INFO L80 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 21 events. 0/21 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 2/23 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-16 05:12:38,988 INFO L132 encePairwiseOnDemand]: 135/138 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2020-10-16 05:12:38,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 21 transitions, 72 flow [2020-10-16 05:12:38,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:12:38,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:12:38,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 453 transitions. [2020-10-16 05:12:38,991 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8206521739130435 [2020-10-16 05:12:38,991 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 453 transitions. [2020-10-16 05:12:38,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 453 transitions. [2020-10-16 05:12:38,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 453 transitions. [2020-10-16 05:12:38,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:12:38,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:12:38,994 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:12:38,994 INFO L185 Difference]: Start difference. First operand has 40 places, 22 transitions, 76 flow. Second operand 4 states and 453 transitions. [2020-10-16 05:12:38,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 21 transitions, 72 flow [2020-10-16 05:12:38,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 21 transitions, 56 flow, removed 0 selfloop flow, removed 8 redundant places. [2020-10-16 05:12:38,995 INFO L241 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2020-10-16 05:12:38,995 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2020-10-16 05:12:38,995 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2020-10-16 05:12:38,996 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2020-10-16 05:12:38,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:12:38,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 05:12:39,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:12:39 BasicIcfg [2020-10-16 05:12:39,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 05:12:39,003 INFO L168 Benchmark]: Toolchain (without parser) took 4065.98 ms. Allocated memory was 251.1 MB in the beginning and 370.7 MB in the end (delta: 119.5 MB). Free memory was 207.1 MB in the beginning and 241.4 MB in the end (delta: -34.3 MB). Peak memory consumption was 85.2 MB. Max. memory is 14.2 GB. [2020-10-16 05:12:39,004 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:12:39,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.12 ms. Allocated memory was 251.1 MB in the beginning and 313.5 MB in the end (delta: 62.4 MB). Free memory was 207.1 MB in the beginning and 266.9 MB in the end (delta: -59.8 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.2 GB. [2020-10-16 05:12:39,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.66 ms. Allocated memory is still 313.5 MB. Free memory was 266.9 MB in the beginning and 264.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:12:39,006 INFO L168 Benchmark]: Boogie Preprocessor took 29.24 ms. Allocated memory is still 313.5 MB. Free memory was 264.4 MB in the beginning and 261.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:12:39,007 INFO L168 Benchmark]: RCFGBuilder took 485.21 ms. Allocated memory is still 313.5 MB. Free memory was 261.9 MB in the beginning and 237.4 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:12:39,008 INFO L168 Benchmark]: TraceAbstraction took 2767.63 ms. Allocated memory was 313.5 MB in the beginning and 370.7 MB in the end (delta: 57.1 MB). Free memory was 237.4 MB in the beginning and 241.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 53.1 MB. Max. memory is 14.2 GB. [2020-10-16 05:12:39,012 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 729.12 ms. Allocated memory was 251.1 MB in the beginning and 313.5 MB in the end (delta: 62.4 MB). Free memory was 207.1 MB in the beginning and 266.9 MB in the end (delta: -59.8 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.66 ms. Allocated memory is still 313.5 MB. Free memory was 266.9 MB in the beginning and 264.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 29.24 ms. Allocated memory is still 313.5 MB. Free memory was 264.4 MB in the beginning and 261.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 485.21 ms. Allocated memory is still 313.5 MB. Free memory was 261.9 MB in the beginning and 237.4 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2767.63 ms. Allocated memory was 313.5 MB in the beginning and 370.7 MB in the end (delta: 57.1 MB). Free memory was 237.4 MB in the beginning and 241.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 53.1 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 987 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 174 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 81 PlacesBefore, 35 PlacesAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 1392 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, 3412 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 17 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 21 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 2989 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...