/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:07:04,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:07:04,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:07:04,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:07:04,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:07:04,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:07:04,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:07:04,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:07:04,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:07:04,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:07:04,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:07:04,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:07:04,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:07:04,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:07:04,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:07:04,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:07:04,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:07:04,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:07:04,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:07:04,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:07:04,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:07:04,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:07:04,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:07:04,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:07:04,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 15:07:04,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 15:07:04,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 15:07:04,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 15:07:04,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 15:07:04,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 15:07:04,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:07:04,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:07:04,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:07:04,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:07:04,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:07:04,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:07:04,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:07:04,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:07:04,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:07:04,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:07:04,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:07:04,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 15:07:04,468 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:07:04,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:07:04,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:07:04,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:07:04,470 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:07:04,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:07:04,471 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:07:04,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:07:04,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:07:04,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:07:04,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:07:04,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:07:04,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:07:04,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:07:04,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:07:04,474 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:07:04,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:07:04,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:07:04,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:07:04,474 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:07:04,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:07:04,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:07:04,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:07:04,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:07:04,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:07:04,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:07:04,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:07:04,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:07:04,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:07:04,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:07:04,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:07:04,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:07:04,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:07:04,794 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:07:04,797 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:07:04,798 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i [2020-10-11 15:07:04,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88b937ae/54d74479bb3c439180e42d66d3b2ba97/FLAGdded62941 [2020-10-11 15:07:05,366 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:07:05,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i [2020-10-11 15:07:05,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88b937ae/54d74479bb3c439180e42d66d3b2ba97/FLAGdded62941 [2020-10-11 15:07:05,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88b937ae/54d74479bb3c439180e42d66d3b2ba97 [2020-10-11 15:07:05,659 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:07:05,661 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:07:05,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:07:05,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:07:05,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:07:05,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:07:05" (1/1) ... [2020-10-11 15:07:05,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c056663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:05, skipping insertion in model container [2020-10-11 15:07:05,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:07:05" (1/1) ... [2020-10-11 15:07:05,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:07:05,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:07:06,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:07:06,294 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:07:06,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:07:06,413 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:07:06,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:06 WrapperNode [2020-10-11 15:07:06,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:07:06,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:07:06,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:07:06,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:07:06,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:06" (1/1) ... [2020-10-11 15:07:06,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:06" (1/1) ... [2020-10-11 15:07:06,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:07:06,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:07:06,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:07:06,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:07:06,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:06" (1/1) ... [2020-10-11 15:07:06,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:06" (1/1) ... [2020-10-11 15:07:06,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:06" (1/1) ... [2020-10-11 15:07:06,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:06" (1/1) ... [2020-10-11 15:07:06,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:06" (1/1) ... [2020-10-11 15:07:06,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:06" (1/1) ... [2020-10-11 15:07:06,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:06" (1/1) ... [2020-10-11 15:07:06,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:07:06,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:07:06,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:07:06,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:07:06,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:06" (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 [2020-10-11 15:07:06,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:07:06,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:07:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:07:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:07:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:07:06,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:07:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:07:06,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:07:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:07:06,559 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:07:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:07:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:07:06,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:07:06,561 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:07:06,913 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:07:06,914 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:07:06,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:07:06 BoogieIcfgContainer [2020-10-11 15:07:06,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:07:06,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:07:06,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:07:06,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:07:06,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:07:05" (1/3) ... [2020-10-11 15:07:06,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adeec4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:07:06, skipping insertion in model container [2020-10-11 15:07:06,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:06" (2/3) ... [2020-10-11 15:07:06,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adeec4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:07:06, skipping insertion in model container [2020-10-11 15:07:06,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:07:06" (3/3) ... [2020-10-11 15:07:06,925 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_tso.oepc.i [2020-10-11 15:07:06,940 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:07:06,941 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:07:06,948 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:07:06,949 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:07:06,974 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,975 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,975 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,977 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,980 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,980 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,981 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,981 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,982 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,982 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,987 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,988 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,995 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,996 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,998 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,999 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,999 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:06,999 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:07,020 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:07:07,040 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:07:07,041 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:07:07,041 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:07:07,041 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:07:07,041 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:07:07,041 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:07:07,041 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:07:07,041 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:07:07,054 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:07:07,057 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-11 15:07:07,060 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-11 15:07:07,062 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-11 15:07:07,103 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-11 15:07:07,104 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:07:07,109 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-11 15:07:07,111 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-11 15:07:08,505 INFO L132 LiptonReduction]: Checked pairs total: 2372 [2020-10-11 15:07:08,505 INFO L134 LiptonReduction]: Total number of compositions: 57 [2020-10-11 15:07:08,512 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-11 15:07:08,537 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-10-11 15:07:08,540 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-10-11 15:07:08,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:07:08,547 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:08,548 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:08,549 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:08,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:08,555 INFO L82 PathProgramCache]: Analyzing trace with hash 278619754, now seen corresponding path program 1 times [2020-10-11 15:07:08,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:08,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817436159] [2020-10-11 15:07:08,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:08,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:08,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817436159] [2020-10-11 15:07:08,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:08,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:07:08,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519971363] [2020-10-11 15:07:08,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 15:07:08,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:08,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 15:07:08,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:07:08,776 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-10-11 15:07:08,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:08,806 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-10-11 15:07:08,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 15:07:08,808 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-11 15:07:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:08,825 INFO L225 Difference]: With dead ends: 274 [2020-10-11 15:07:08,825 INFO L226 Difference]: Without dead ends: 226 [2020-10-11 15:07:08,827 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:07:08,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-11 15:07:08,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-11 15:07:08,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-11 15:07:08,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-10-11 15:07:08,894 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-10-11 15:07:08,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:08,895 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-10-11 15:07:08,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 15:07:08,896 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-10-11 15:07:08,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 15:07:08,897 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:08,897 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:08,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:07:08,898 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:08,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:08,898 INFO L82 PathProgramCache]: Analyzing trace with hash 47263938, now seen corresponding path program 1 times [2020-10-11 15:07:08,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:08,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406418223] [2020-10-11 15:07:08,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:09,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:09,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406418223] [2020-10-11 15:07:09,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:09,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:07:09,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150288700] [2020-10-11 15:07:09,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:07:09,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:09,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:07:09,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:07:09,038 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 5 states. [2020-10-11 15:07:09,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:09,114 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions. [2020-10-11 15:07:09,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:07:09,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-11 15:07:09,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:09,118 INFO L225 Difference]: With dead ends: 250 [2020-10-11 15:07:09,118 INFO L226 Difference]: Without dead ends: 202 [2020-10-11 15:07:09,119 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:07:09,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-11 15:07:09,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-11 15:07:09,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-11 15:07:09,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions. [2020-10-11 15:07:09,138 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9 [2020-10-11 15:07:09,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:09,138 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions. [2020-10-11 15:07:09,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:07:09,139 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2020-10-11 15:07:09,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:07:09,140 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:09,140 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:09,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:07:09,141 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:09,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:09,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1465143248, now seen corresponding path program 1 times [2020-10-11 15:07:09,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:09,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830685294] [2020-10-11 15:07:09,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:09,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830685294] [2020-10-11 15:07:09,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:09,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:07:09,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522678876] [2020-10-11 15:07:09,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:07:09,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:09,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:07:09,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:07:09,322 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 6 states. [2020-10-11 15:07:09,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:09,437 INFO L93 Difference]: Finished difference Result 262 states and 697 transitions. [2020-10-11 15:07:09,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 15:07:09,438 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-11 15:07:09,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:09,439 INFO L225 Difference]: With dead ends: 262 [2020-10-11 15:07:09,439 INFO L226 Difference]: Without dead ends: 154 [2020-10-11 15:07:09,440 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-11 15:07:09,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-11 15:07:09,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-11 15:07:09,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-11 15:07:09,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 392 transitions. [2020-10-11 15:07:09,451 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 392 transitions. Word has length 10 [2020-10-11 15:07:09,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:09,451 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 392 transitions. [2020-10-11 15:07:09,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:07:09,451 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 392 transitions. [2020-10-11 15:07:09,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:07:09,453 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:09,453 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:09,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:07:09,453 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:09,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:09,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1312152701, now seen corresponding path program 1 times [2020-10-11 15:07:09,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:09,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965360134] [2020-10-11 15:07:09,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:09,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965360134] [2020-10-11 15:07:09,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:09,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:07:09,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653106681] [2020-10-11 15:07:09,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:07:09,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:09,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:07:09,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:07:09,533 INFO L87 Difference]: Start difference. First operand 154 states and 392 transitions. Second operand 4 states. [2020-10-11 15:07:09,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:09,552 INFO L93 Difference]: Finished difference Result 174 states and 426 transitions. [2020-10-11 15:07:09,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:07:09,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 15:07:09,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:09,554 INFO L225 Difference]: With dead ends: 174 [2020-10-11 15:07:09,554 INFO L226 Difference]: Without dead ends: 150 [2020-10-11 15:07:09,554 INFO L673 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 [2020-10-11 15:07:09,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-11 15:07:09,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-11 15:07:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-11 15:07:09,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 378 transitions. [2020-10-11 15:07:09,562 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 378 transitions. Word has length 11 [2020-10-11 15:07:09,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:09,563 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 378 transitions. [2020-10-11 15:07:09,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:07:09,563 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions. [2020-10-11 15:07:09,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:07:09,564 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:09,565 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:09,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:07:09,565 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:09,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:09,565 INFO L82 PathProgramCache]: Analyzing trace with hash 266026162, now seen corresponding path program 1 times [2020-10-11 15:07:09,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:09,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860966324] [2020-10-11 15:07:09,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:09,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860966324] [2020-10-11 15:07:09,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:09,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:07:09,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095088196] [2020-10-11 15:07:09,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:07:09,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:09,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:07:09,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:07:09,626 INFO L87 Difference]: Start difference. First operand 150 states and 378 transitions. Second operand 4 states. [2020-10-11 15:07:09,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:09,659 INFO L93 Difference]: Finished difference Result 164 states and 376 transitions. [2020-10-11 15:07:09,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:07:09,660 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:07:09,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:09,662 INFO L225 Difference]: With dead ends: 164 [2020-10-11 15:07:09,662 INFO L226 Difference]: Without dead ends: 128 [2020-10-11 15:07:09,662 INFO L673 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 [2020-10-11 15:07:09,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-11 15:07:09,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-11 15:07:09,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-11 15:07:09,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 293 transitions. [2020-10-11 15:07:09,668 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 293 transitions. Word has length 12 [2020-10-11 15:07:09,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:09,669 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 293 transitions. [2020-10-11 15:07:09,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:07:09,669 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions. [2020-10-11 15:07:09,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 15:07:09,670 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:09,670 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:09,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:07:09,671 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:09,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:09,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1292455845, now seen corresponding path program 1 times [2020-10-11 15:07:09,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:09,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309739965] [2020-10-11 15:07:09,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:09,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:09,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309739965] [2020-10-11 15:07:09,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:09,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:07:09,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266317020] [2020-10-11 15:07:09,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:07:09,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:09,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:07:09,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:07:09,724 INFO L87 Difference]: Start difference. First operand 128 states and 293 transitions. Second operand 5 states. [2020-10-11 15:07:09,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:09,762 INFO L93 Difference]: Finished difference Result 116 states and 240 transitions. [2020-10-11 15:07:09,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:07:09,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-11 15:07:09,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:09,764 INFO L225 Difference]: With dead ends: 116 [2020-10-11 15:07:09,764 INFO L226 Difference]: Without dead ends: 92 [2020-10-11 15:07:09,765 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:07:09,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-11 15:07:09,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-10-11 15:07:09,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-11 15:07:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 186 transitions. [2020-10-11 15:07:09,769 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 186 transitions. Word has length 13 [2020-10-11 15:07:09,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:09,769 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 186 transitions. [2020-10-11 15:07:09,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:07:09,769 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2020-10-11 15:07:09,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:07:09,770 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:09,770 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:09,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:07:09,771 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:09,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:09,771 INFO L82 PathProgramCache]: Analyzing trace with hash -228576461, now seen corresponding path program 1 times [2020-10-11 15:07:09,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:09,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863957942] [2020-10-11 15:07:09,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:09,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:09,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863957942] [2020-10-11 15:07:09,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:09,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:07:09,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348826388] [2020-10-11 15:07:09,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:07:09,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:09,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:07:09,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:07:09,829 INFO L87 Difference]: Start difference. First operand 92 states and 186 transitions. Second operand 4 states. [2020-10-11 15:07:09,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:09,847 INFO L93 Difference]: Finished difference Result 120 states and 228 transitions. [2020-10-11 15:07:09,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:07:09,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-11 15:07:09,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:09,849 INFO L225 Difference]: With dead ends: 120 [2020-10-11 15:07:09,849 INFO L226 Difference]: Without dead ends: 94 [2020-10-11 15:07:09,850 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:07:09,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-11 15:07:09,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2020-10-11 15:07:09,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-11 15:07:09,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 175 transitions. [2020-10-11 15:07:09,854 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 175 transitions. Word has length 14 [2020-10-11 15:07:09,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:09,855 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 175 transitions. [2020-10-11 15:07:09,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:07:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 175 transitions. [2020-10-11 15:07:09,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:07:09,856 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:09,856 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:09,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:07:09,857 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:09,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:09,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1357686433, now seen corresponding path program 1 times [2020-10-11 15:07:09,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:09,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81769762] [2020-10-11 15:07:09,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:09,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81769762] [2020-10-11 15:07:09,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:09,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:07:09,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868765083] [2020-10-11 15:07:09,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:07:09,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:09,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:07:09,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:07:09,913 INFO L87 Difference]: Start difference. First operand 90 states and 175 transitions. Second operand 5 states. [2020-10-11 15:07:09,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:09,940 INFO L93 Difference]: Finished difference Result 113 states and 209 transitions. [2020-10-11 15:07:09,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:07:09,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-11 15:07:09,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:09,942 INFO L225 Difference]: With dead ends: 113 [2020-10-11 15:07:09,942 INFO L226 Difference]: Without dead ends: 70 [2020-10-11 15:07:09,942 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:07:09,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-11 15:07:09,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2020-10-11 15:07:09,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-11 15:07:09,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 115 transitions. [2020-10-11 15:07:09,945 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 115 transitions. Word has length 15 [2020-10-11 15:07:09,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:09,946 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 115 transitions. [2020-10-11 15:07:09,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:07:09,946 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 115 transitions. [2020-10-11 15:07:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:07:09,947 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:09,947 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:09,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:07:09,947 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:09,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:09,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1504039886, now seen corresponding path program 1 times [2020-10-11 15:07:09,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:09,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549863966] [2020-10-11 15:07:09,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:10,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549863966] [2020-10-11 15:07:10,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:10,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 15:07:10,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683494276] [2020-10-11 15:07:10,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:07:10,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:10,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:07:10,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:07:10,026 INFO L87 Difference]: Start difference. First operand 68 states and 115 transitions. Second operand 6 states. [2020-10-11 15:07:10,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:10,061 INFO L93 Difference]: Finished difference Result 58 states and 100 transitions. [2020-10-11 15:07:10,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:07:10,062 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-11 15:07:10,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:10,062 INFO L225 Difference]: With dead ends: 58 [2020-10-11 15:07:10,062 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:07:10,063 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:07:10,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:07:10,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:07:10,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:07:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:07:10,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-11 15:07:10,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:10,064 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:07:10,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:07:10,064 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:07:10,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:07:10,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 15:07:10,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:07:10 BasicIcfg [2020-10-11 15:07:10,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:07:10,071 INFO L168 Benchmark]: Toolchain (without parser) took 4409.66 ms. Allocated memory was 252.7 MB in the beginning and 372.8 MB in the end (delta: 120.1 MB). Free memory was 205.3 MB in the beginning and 237.3 MB in the end (delta: -32.0 MB). Peak memory consumption was 88.0 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:10,072 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 252.7 MB. Free memory was 228.2 MB in the beginning and 227.4 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-11 15:07:10,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.34 ms. Allocated memory was 252.7 MB in the beginning and 318.2 MB in the end (delta: 65.5 MB). Free memory was 205.3 MB in the beginning and 272.3 MB in the end (delta: -66.9 MB). Peak memory consumption was 28.4 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:10,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.73 ms. Allocated memory is still 318.2 MB. Free memory was 272.3 MB in the beginning and 270.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:10,075 INFO L168 Benchmark]: Boogie Preprocessor took 27.99 ms. Allocated memory is still 318.2 MB. Free memory was 270.6 MB in the beginning and 268.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:10,075 INFO L168 Benchmark]: RCFGBuilder took 420.07 ms. Allocated memory is still 318.2 MB. Free memory was 268.9 MB in the beginning and 246.1 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:10,076 INFO L168 Benchmark]: TraceAbstraction took 3150.68 ms. Allocated memory was 318.2 MB in the beginning and 372.8 MB in the end (delta: 54.5 MB). Free memory was 246.1 MB in the beginning and 237.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 63.3 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:10,080 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 252.7 MB. Free memory was 228.2 MB in the beginning and 227.4 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 752.34 ms. Allocated memory was 252.7 MB in the beginning and 318.2 MB in the end (delta: 65.5 MB). Free memory was 205.3 MB in the beginning and 272.3 MB in the end (delta: -66.9 MB). Peak memory consumption was 28.4 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 52.73 ms. Allocated memory is still 318.2 MB. Free memory was 272.3 MB in the beginning and 270.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.99 ms. Allocated memory is still 318.2 MB. Free memory was 270.6 MB in the beginning and 268.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 420.07 ms. Allocated memory is still 318.2 MB. Free memory was 268.9 MB in the beginning and 246.1 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3150.68 ms. Allocated memory was 318.2 MB in the beginning and 372.8 MB in the end (delta: 54.5 MB). Free memory was 246.1 MB in the beginning and 237.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 63.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 738 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 44 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 76 PlacesBefore, 31 PlacesAfterwards, 68 TransitionsBefore, 22 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 57 TotalNumberOfCompositions, 2372 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 178 SDtfs, 200 SDslu, 303 SDs, 0 SdLazy, 161 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred 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, 9 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 3626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...