/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:49:46,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:49:46,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:49:46,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:49:46,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:49:46,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:49:46,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:49:46,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:49:46,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:49:46,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:49:46,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:49:46,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:49:46,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:49:46,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:49:46,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:49:46,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:49:46,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:49:46,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:49:46,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:49:46,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:49:46,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:49:46,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:49:46,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:49:46,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:49:46,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-05 22:49:46,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-05 22:49:46,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-05 22:49:46,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-05 22:49:46,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-05 22:49:46,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-05 22:49:46,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:49:46,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:49:46,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:49:46,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:49:46,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:49:46,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:49:46,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:49:46,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:49:46,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:49:46,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:49:46,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:49:46,428 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 [2020-10-05 22:49:46,469 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:49:46,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:49:46,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:49:46,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:49:46,471 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:49:46,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:49:46,472 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:49:46,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:49:46,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:49:46,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:49:46,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:49:46,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:49:46,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:49:46,474 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:49:46,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:49:46,475 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:49:46,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:49:46,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:49:46,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:49:46,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:49:46,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:49:46,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:49:46,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:49:46,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:49:46,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:49:46,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:49:46,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:49:46,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:49:46,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:49:46,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:49:46,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:49:46,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:49:46,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:49:46,776 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:49:46,776 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:49:46,777 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2020-10-05 22:49:46,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d19f68d3c/62fa138c1e654a33a7cbd167a1bbb5a2/FLAG3cc7ff9fd [2020-10-05 22:49:47,407 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:49:47,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2020-10-05 22:49:47,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d19f68d3c/62fa138c1e654a33a7cbd167a1bbb5a2/FLAG3cc7ff9fd [2020-10-05 22:49:47,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d19f68d3c/62fa138c1e654a33a7cbd167a1bbb5a2 [2020-10-05 22:49:47,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:49:47,686 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:49:47,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:49:47,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:49:47,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:49:47,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:49:47" (1/1) ... [2020-10-05 22:49:47,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e1c5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:47, skipping insertion in model container [2020-10-05 22:49:47,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:49:47" (1/1) ... [2020-10-05 22:49:47,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:49:47,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:49:48,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:49:48,314 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:49:48,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:49:48,423 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:49:48,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:48 WrapperNode [2020-10-05 22:49:48,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:49:48,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:49:48,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:49:48,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:49:48,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:48" (1/1) ... [2020-10-05 22:49:48,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:48" (1/1) ... [2020-10-05 22:49:48,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:49:48,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:49:48,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:49:48,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:49:48,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:48" (1/1) ... [2020-10-05 22:49:48,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:48" (1/1) ... [2020-10-05 22:49:48,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:48" (1/1) ... [2020-10-05 22:49:48,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:48" (1/1) ... [2020-10-05 22:49:48,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:48" (1/1) ... [2020-10-05 22:49:48,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:48" (1/1) ... [2020-10-05 22:49:48,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:48" (1/1) ... [2020-10-05 22:49:48,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:49:48,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:49:48,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:49:48,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:49:48,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:48" (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 [2020-10-05 22:49:48,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:49:48,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:49:48,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:49:48,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:49:48,564 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:49:48,565 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:49:48,565 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:49:48,566 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:49:48,566 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:49:48,567 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:49:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:49:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:49:48,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:49:48,569 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:49:48,915 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:49:48,916 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:49:48,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:49:48 BoogieIcfgContainer [2020-10-05 22:49:48,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:49:48,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:49:48,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:49:48,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:49:48,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:49:47" (1/3) ... [2020-10-05 22:49:48,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38db576a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:49:48, skipping insertion in model container [2020-10-05 22:49:48,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:48" (2/3) ... [2020-10-05 22:49:48,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38db576a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:49:48, skipping insertion in model container [2020-10-05 22:49:48,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:49:48" (3/3) ... [2020-10-05 22:49:48,927 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.oepc.i [2020-10-05 22:49:48,940 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:49:48,941 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:49:48,949 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:49:48,950 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:49:48,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,984 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,986 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,986 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,986 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,986 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,987 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,987 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,988 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,988 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,989 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,989 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,993 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,994 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,994 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:48,994 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:49,004 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:49,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:49,005 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:49,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:49,008 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:49,009 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:49,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:49,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:49,028 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 22:49:49,048 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:49:49,048 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:49:49,048 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:49:49,048 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:49:49,049 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:49:49,049 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:49:49,049 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:49:49,049 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:49:49,065 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-05 22:49:49,068 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 22:49:49,120 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 22:49:49,120 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:49:49,126 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:49:49,129 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 22:49:49,157 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 22:49:49,157 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:49:49,158 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:49:49,161 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 22:49:49,162 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:49:50,779 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2826 [2020-10-05 22:49:50,779 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-10-05 22:49:50,783 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-05 22:49:50,810 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-05 22:49:50,813 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-05 22:49:50,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:49:50,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:50,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:50,823 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:50,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:50,832 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-10-05 22:49:50,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:50,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423916994] [2020-10-05 22:49:50,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:51,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:51,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423916994] [2020-10-05 22:49:51,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:51,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:49:51,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876507376] [2020-10-05 22:49:51,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:51,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:51,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:51,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:51,113 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-05 22:49:51,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:51,171 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-05 22:49:51,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:51,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:49:51,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:51,196 INFO L225 Difference]: With dead ends: 282 [2020-10-05 22:49:51,197 INFO L226 Difference]: Without dead ends: 218 [2020-10-05 22:49:51,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:51,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-05 22:49:51,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-05 22:49:51,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-05 22:49:51,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-05 22:49:51,268 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-05 22:49:51,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:51,270 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-05 22:49:51,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:51,270 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-05 22:49:51,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:49:51,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:51,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:51,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:49:51,272 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:51,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:51,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-10-05 22:49:51,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:51,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384452436] [2020-10-05 22:49:51,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:51,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:51,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384452436] [2020-10-05 22:49:51,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:51,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:51,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993003810] [2020-10-05 22:49:51,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:51,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:51,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:51,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:51,340 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-05 22:49:51,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:51,362 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-05 22:49:51,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:51,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-05 22:49:51,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:51,365 INFO L225 Difference]: With dead ends: 202 [2020-10-05 22:49:51,365 INFO L226 Difference]: Without dead ends: 202 [2020-10-05 22:49:51,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:51,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-05 22:49:51,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-05 22:49:51,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-05 22:49:51,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-05 22:49:51,384 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-05 22:49:51,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:51,384 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-05 22:49:51,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:51,384 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-05 22:49:51,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 22:49:51,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:51,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:51,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:49:51,387 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:51,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:51,387 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-10-05 22:49:51,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:51,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053647946] [2020-10-05 22:49:51,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:51,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:51,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053647946] [2020-10-05 22:49:51,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:51,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:49:51,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905792545] [2020-10-05 22:49:51,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:51,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:51,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:51,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:51,480 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-05 22:49:51,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:51,492 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-10-05 22:49:51,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:51,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-05 22:49:51,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:51,495 INFO L225 Difference]: With dead ends: 198 [2020-10-05 22:49:51,495 INFO L226 Difference]: Without dead ends: 198 [2020-10-05 22:49:51,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:51,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-05 22:49:51,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-05 22:49:51,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-05 22:49:51,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-10-05 22:49:51,509 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-10-05 22:49:51,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:51,509 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-10-05 22:49:51,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:51,510 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-10-05 22:49:51,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:49:51,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:51,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:51,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:49:51,512 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:51,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:51,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-10-05 22:49:51,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:51,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146859166] [2020-10-05 22:49:51,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:51,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:51,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146859166] [2020-10-05 22:49:51,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:51,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:49:51,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369979282] [2020-10-05 22:49:51,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:51,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:51,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:51,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:51,563 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-10-05 22:49:51,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:51,571 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-10-05 22:49:51,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:51,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:49:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:51,574 INFO L225 Difference]: With dead ends: 192 [2020-10-05 22:49:51,574 INFO L226 Difference]: Without dead ends: 192 [2020-10-05 22:49:51,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:51,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-05 22:49:51,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-10-05 22:49:51,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-05 22:49:51,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-10-05 22:49:51,584 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-10-05 22:49:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:51,585 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-10-05 22:49:51,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:51,585 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-10-05 22:49:51,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:49:51,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:51,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:51,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:49:51,587 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:51,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:51,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-10-05 22:49:51,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:51,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094945822] [2020-10-05 22:49:51,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:51,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094945822] [2020-10-05 22:49:51,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:51,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:51,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568096980] [2020-10-05 22:49:51,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:51,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:51,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:51,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:51,660 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 4 states. [2020-10-05 22:49:51,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:51,702 INFO L93 Difference]: Finished difference Result 224 states and 554 transitions. [2020-10-05 22:49:51,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:51,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:49:51,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:51,704 INFO L225 Difference]: With dead ends: 224 [2020-10-05 22:49:51,705 INFO L226 Difference]: Without dead ends: 160 [2020-10-05 22:49:51,705 INFO L675 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 [2020-10-05 22:49:51,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-05 22:49:51,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-05 22:49:51,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-05 22:49:51,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 383 transitions. [2020-10-05 22:49:51,712 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 383 transitions. Word has length 12 [2020-10-05 22:49:51,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:51,712 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 383 transitions. [2020-10-05 22:49:51,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:51,712 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-10-05 22:49:51,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:49:51,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:51,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:51,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:49:51,714 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:51,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:51,715 INFO L82 PathProgramCache]: Analyzing trace with hash 887113091, now seen corresponding path program 1 times [2020-10-05 22:49:51,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:51,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486895766] [2020-10-05 22:49:51,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:51,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:51,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486895766] [2020-10-05 22:49:51,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:51,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:51,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932613] [2020-10-05 22:49:51,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:49:51,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:51,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:49:51,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:49:51,807 INFO L87 Difference]: Start difference. First operand 160 states and 383 transitions. Second operand 5 states. [2020-10-05 22:49:51,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:51,863 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-10-05 22:49:51,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:49:51,865 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 22:49:51,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:51,866 INFO L225 Difference]: With dead ends: 160 [2020-10-05 22:49:51,866 INFO L226 Difference]: Without dead ends: 123 [2020-10-05 22:49:51,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:49:51,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-05 22:49:51,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-05 22:49:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-05 22:49:51,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-05 22:49:51,872 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 13 [2020-10-05 22:49:51,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:51,872 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-05 22:49:51,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:49:51,873 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-05 22:49:51,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:49:51,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:51,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:51,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:49:51,882 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:51,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:51,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-10-05 22:49:51,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:51,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882337255] [2020-10-05 22:49:51,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:51,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:51,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882337255] [2020-10-05 22:49:51,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:51,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:51,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532941620] [2020-10-05 22:49:51,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:51,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:51,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:51,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:51,940 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-10-05 22:49:51,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:51,953 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-10-05 22:49:51,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:51,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-05 22:49:51,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:51,955 INFO L225 Difference]: With dead ends: 155 [2020-10-05 22:49:51,955 INFO L226 Difference]: Without dead ends: 124 [2020-10-05 22:49:51,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:51,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-05 22:49:51,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-10-05 22:49:51,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-05 22:49:51,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-10-05 22:49:51,960 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-10-05 22:49:51,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:51,961 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-10-05 22:49:51,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:51,961 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-10-05 22:49:51,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:49:51,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:51,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:51,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:49:51,963 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:51,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:51,963 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-10-05 22:49:51,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:51,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032968883] [2020-10-05 22:49:51,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:52,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:52,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032968883] [2020-10-05 22:49:52,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:52,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:52,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465953422] [2020-10-05 22:49:52,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:52,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:52,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:52,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:52,024 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-10-05 22:49:52,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:52,048 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-10-05 22:49:52,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:49:52,048 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-05 22:49:52,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:52,049 INFO L225 Difference]: With dead ends: 154 [2020-10-05 22:49:52,049 INFO L226 Difference]: Without dead ends: 116 [2020-10-05 22:49:52,050 INFO L675 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 [2020-10-05 22:49:52,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-05 22:49:52,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-10-05 22:49:52,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-05 22:49:52,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-10-05 22:49:52,054 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-10-05 22:49:52,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:52,054 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-10-05 22:49:52,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:52,054 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-10-05 22:49:52,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:49:52,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:52,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:52,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:49:52,056 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:52,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:52,057 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-10-05 22:49:52,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:52,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667002699] [2020-10-05 22:49:52,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:52,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:52,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667002699] [2020-10-05 22:49:52,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:52,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:49:52,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195824534] [2020-10-05 22:49:52,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 22:49:52,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:52,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 22:49:52,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:49:52,125 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 6 states. [2020-10-05 22:49:52,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:52,174 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-10-05 22:49:52,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:49:52,175 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-05 22:49:52,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:52,176 INFO L225 Difference]: With dead ends: 110 [2020-10-05 22:49:52,176 INFO L226 Difference]: Without dead ends: 38 [2020-10-05 22:49:52,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:49:52,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-05 22:49:52,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-05 22:49:52,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-05 22:49:52,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-10-05 22:49:52,178 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-10-05 22:49:52,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:52,179 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-10-05 22:49:52,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 22:49:52,179 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-10-05 22:49:52,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:49:52,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:52,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:52,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 22:49:52,180 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:52,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:52,180 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-10-05 22:49:52,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:52,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874950255] [2020-10-05 22:49:52,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:52,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:52,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874950255] [2020-10-05 22:49:52,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:52,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:52,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251342397] [2020-10-05 22:49:52,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:52,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:52,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:52,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:52,212 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-10-05 22:49:52,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:52,230 INFO L93 Difference]: Finished difference Result 51 states and 83 transitions. [2020-10-05 22:49:52,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:52,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-05 22:49:52,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:52,231 INFO L225 Difference]: With dead ends: 51 [2020-10-05 22:49:52,231 INFO L226 Difference]: Without dead ends: 30 [2020-10-05 22:49:52,232 INFO L675 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 [2020-10-05 22:49:52,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-05 22:49:52,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-05 22:49:52,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-05 22:49:52,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-05 22:49:52,234 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-05 22:49:52,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:52,234 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-05 22:49:52,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:52,234 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-05 22:49:52,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:49:52,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:52,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:52,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 22:49:52,235 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:52,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:52,236 INFO L82 PathProgramCache]: Analyzing trace with hash -34011261, now seen corresponding path program 2 times [2020-10-05 22:49:52,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:52,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158297331] [2020-10-05 22:49:52,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:52,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:52,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158297331] [2020-10-05 22:49:52,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:52,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:52,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404900472] [2020-10-05 22:49:52,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:52,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:52,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:52,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:52,269 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-05 22:49:52,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:52,282 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-05 22:49:52,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:49:52,283 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-05 22:49:52,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:52,283 INFO L225 Difference]: With dead ends: 29 [2020-10-05 22:49:52,283 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:49:52,284 INFO L675 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 [2020-10-05 22:49:52,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:49:52,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:49:52,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:49:52,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:49:52,285 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-05 22:49:52,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:52,285 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:49:52,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:52,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:49:52,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:49:52,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-05 22:49:52,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:49:52 BasicIcfg [2020-10-05 22:49:52,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:49:52,292 INFO L168 Benchmark]: Toolchain (without parser) took 4605.37 ms. Allocated memory was 147.8 MB in the beginning and 244.3 MB in the end (delta: 96.5 MB). Free memory was 101.5 MB in the beginning and 110.3 MB in the end (delta: -8.9 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:52,293 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 22:49:52,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.06 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 101.3 MB in the beginning and 159.9 MB in the end (delta: -58.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:52,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.24 ms. Allocated memory is still 204.5 MB. Free memory was 159.9 MB in the beginning and 158.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:52,295 INFO L168 Benchmark]: Boogie Preprocessor took 26.06 ms. Allocated memory is still 204.5 MB. Free memory was 158.0 MB in the beginning and 156.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:52,296 INFO L168 Benchmark]: RCFGBuilder took 419.91 ms. Allocated memory is still 204.5 MB. Free memory was 156.0 MB in the beginning and 134.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:52,297 INFO L168 Benchmark]: TraceAbstraction took 3370.16 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 133.9 MB in the beginning and 110.3 MB in the end (delta: 23.5 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:52,301 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.06 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 101.3 MB in the beginning and 159.9 MB in the end (delta: -58.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.24 ms. Allocated memory is still 204.5 MB. Free memory was 159.9 MB in the beginning and 158.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.06 ms. Allocated memory is still 204.5 MB. Free memory was 158.0 MB in the beginning and 156.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 419.91 ms. Allocated memory is still 204.5 MB. Free memory was 156.0 MB in the beginning and 134.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3370.16 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 133.9 MB in the beginning and 110.3 MB in the end (delta: 23.5 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 676 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2826 CheckedPairsTotal, 58 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 216 SDtfs, 131 SDslu, 232 SDs, 0 SdLazy, 130 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...