/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/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:33:19,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:33:19,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:33:19,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:33:19,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:33:19,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:33:19,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:33:19,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:33:19,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:33:19,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:33:19,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:33:19,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:33:19,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:33:19,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:33:19,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:33:19,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:33:19,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:33:19,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:33:19,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:33:19,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:33:19,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:33:19,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:33:19,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:33:19,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:33:19,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 18:33:19,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 18:33:19,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 18:33:19,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 18:33:19,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 18:33:19,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 18:33:19,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:33:19,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:33:19,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:33:19,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:33:19,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:33:19,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:33:19,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:33:19,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:33:19,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:33:19,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:33:19,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:33:19,367 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 [2020-10-15 18:33:19,391 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:33:19,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:33:19,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:33:19,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:33:19,393 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:33:19,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:33:19,393 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:33:19,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:33:19,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:33:19,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:33:19,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:33:19,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:33:19,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:33:19,395 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:33:19,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:33:19,395 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:33:19,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:33:19,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:33:19,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:33:19,396 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:33:19,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:33:19,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:33:19,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:33:19,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:33:19,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:33:19,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:33:19,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:33:19,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:33:19,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:33:19,398 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:33:19,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:33:19,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:33:19,725 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:33:19,727 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:33:19,727 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:33:19,728 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2020-10-15 18:33:19,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecae83b93/80acfbc0d8e84e7384ef87352a3aa817/FLAGb028da415 [2020-10-15 18:33:20,313 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:33:20,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2020-10-15 18:33:20,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecae83b93/80acfbc0d8e84e7384ef87352a3aa817/FLAGb028da415 [2020-10-15 18:33:20,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecae83b93/80acfbc0d8e84e7384ef87352a3aa817 [2020-10-15 18:33:20,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:33:20,644 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:33:20,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:33:20,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:33:20,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:33:20,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:33:20" (1/1) ... [2020-10-15 18:33:20,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e9224f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:20, skipping insertion in model container [2020-10-15 18:33:20,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:33:20" (1/1) ... [2020-10-15 18:33:20,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:33:20,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:33:21,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:33:21,186 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:33:21,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:33:21,337 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:33:21,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:21 WrapperNode [2020-10-15 18:33:21,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:33:21,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:33:21,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:33:21,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:33:21,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:21" (1/1) ... [2020-10-15 18:33:21,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:21" (1/1) ... [2020-10-15 18:33:21,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:33:21,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:33:21,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:33:21,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:33:21,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:21" (1/1) ... [2020-10-15 18:33:21,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:21" (1/1) ... [2020-10-15 18:33:21,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:21" (1/1) ... [2020-10-15 18:33:21,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:21" (1/1) ... [2020-10-15 18:33:21,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:21" (1/1) ... [2020-10-15 18:33:21,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:21" (1/1) ... [2020-10-15 18:33:21,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:21" (1/1) ... [2020-10-15 18:33:21,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:33:21,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:33:21,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:33:21,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:33:21,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:33:21,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:33:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:33:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:33:21,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:33:21,502 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:33:21,502 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:33:21,503 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:33:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:33:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:33:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:33:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:33:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:33:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:33:21,507 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:33:21,817 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:33:21,817 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:33:21,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:33:21 BoogieIcfgContainer [2020-10-15 18:33:21,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:33:21,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:33:21,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:33:21,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:33:21,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:33:20" (1/3) ... [2020-10-15 18:33:21,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a3be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:33:21, skipping insertion in model container [2020-10-15 18:33:21,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:21" (2/3) ... [2020-10-15 18:33:21,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a3be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:33:21, skipping insertion in model container [2020-10-15 18:33:21,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:33:21" (3/3) ... [2020-10-15 18:33:21,829 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2020-10-15 18:33:21,842 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:33:21,843 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:33:21,850 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:33:21,852 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:33:21,884 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,884 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,884 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,885 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,886 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,886 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,886 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,887 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,887 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,888 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,888 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,889 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,889 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,890 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,890 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,894 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,894 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,894 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,895 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,899 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,900 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,903 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,903 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,903 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:21,931 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:33:21,954 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:33:21,955 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:33:21,955 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:33:21,955 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:33:21,955 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:33:21,955 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:33:21,955 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:33:21,955 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:33:21,969 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:33:21,972 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:33:21,975 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:33:21,977 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-15 18:33:22,026 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-15 18:33:22,026 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:33:22,031 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 18:33:22,035 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 18:33:23,659 INFO L132 LiptonReduction]: Checked pairs total: 2298 [2020-10-15 18:33:23,660 INFO L134 LiptonReduction]: Total number of compositions: 60 [2020-10-15 18:33:23,667 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-15 18:33:23,694 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 18:33:23,696 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 18:33:23,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:33:23,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:23,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:23,706 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:23,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:23,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1620259193, now seen corresponding path program 1 times [2020-10-15 18:33:23,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:23,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611353347] [2020-10-15 18:33:23,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:23,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:23,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611353347] [2020-10-15 18:33:23,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:23,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:33:23,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466460074] [2020-10-15 18:33:23,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:23,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:23,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:23,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:23,990 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 18:33:24,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:24,038 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-15 18:33:24,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:24,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 18:33:24,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:24,059 INFO L225 Difference]: With dead ends: 282 [2020-10-15 18:33:24,059 INFO L226 Difference]: Without dead ends: 218 [2020-10-15 18:33:24,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:24,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-15 18:33:24,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-15 18:33:24,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-15 18:33:24,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-15 18:33:24,146 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-15 18:33:24,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:24,148 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-15 18:33:24,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:24,148 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-15 18:33:24,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:33:24,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:24,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:24,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:33:24,150 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:24,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:24,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1311571333, now seen corresponding path program 1 times [2020-10-15 18:33:24,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:24,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384782566] [2020-10-15 18:33:24,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:24,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:24,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384782566] [2020-10-15 18:33:24,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:24,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:33:24,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076213693] [2020-10-15 18:33:24,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:33:24,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:24,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:33:24,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:33:24,221 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-15 18:33:24,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:24,255 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-15 18:33:24,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:33:24,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 18:33:24,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:24,258 INFO L225 Difference]: With dead ends: 242 [2020-10-15 18:33:24,258 INFO L226 Difference]: Without dead ends: 146 [2020-10-15 18:33:24,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:33:24,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-15 18:33:24,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-15 18:33:24,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-15 18:33:24,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-15 18:33:24,273 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-15 18:33:24,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:24,274 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-15 18:33:24,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:33:24,274 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-15 18:33:24,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:33:24,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:24,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:24,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:33:24,276 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:24,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:24,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1994932005, now seen corresponding path program 1 times [2020-10-15 18:33:24,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:24,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50683265] [2020-10-15 18:33:24,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:24,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:24,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50683265] [2020-10-15 18:33:24,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:24,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:33:24,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456146110] [2020-10-15 18:33:24,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:24,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:24,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:24,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:24,334 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-10-15 18:33:24,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:24,342 INFO L93 Difference]: Finished difference Result 144 states and 355 transitions. [2020-10-15 18:33:24,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:24,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 18:33:24,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:24,344 INFO L225 Difference]: With dead ends: 144 [2020-10-15 18:33:24,344 INFO L226 Difference]: Without dead ends: 144 [2020-10-15 18:33:24,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:24,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-15 18:33:24,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-15 18:33:24,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-15 18:33:24,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-10-15 18:33:24,357 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 11 [2020-10-15 18:33:24,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:24,358 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-10-15 18:33:24,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:24,358 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-10-15 18:33:24,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:33:24,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:24,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:24,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:33:24,360 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:24,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:24,360 INFO L82 PathProgramCache]: Analyzing trace with hash 315672505, now seen corresponding path program 1 times [2020-10-15 18:33:24,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:24,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771993805] [2020-10-15 18:33:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:24,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:24,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771993805] [2020-10-15 18:33:24,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:24,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:33:24,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011931914] [2020-10-15 18:33:24,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:33:24,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:24,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:33:24,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:33:24,439 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 4 states. [2020-10-15 18:33:24,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:24,479 INFO L93 Difference]: Finished difference Result 164 states and 374 transitions. [2020-10-15 18:33:24,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:33:24,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:33:24,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:24,482 INFO L225 Difference]: With dead ends: 164 [2020-10-15 18:33:24,482 INFO L226 Difference]: Without dead ends: 124 [2020-10-15 18:33:24,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:33:24,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-15 18:33:24,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-10-15 18:33:24,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-15 18:33:24,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions. [2020-10-15 18:33:24,492 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 12 [2020-10-15 18:33:24,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:24,493 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 281 transitions. [2020-10-15 18:33:24,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:33:24,493 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-10-15 18:33:24,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:33:24,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:24,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:24,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:33:24,495 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:24,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:24,495 INFO L82 PathProgramCache]: Analyzing trace with hash 852950147, now seen corresponding path program 1 times [2020-10-15 18:33:24,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:24,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628879891] [2020-10-15 18:33:24,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:24,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628879891] [2020-10-15 18:33:24,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:24,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:33:24,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715669313] [2020-10-15 18:33:24,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:33:24,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:24,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:33:24,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:33:24,567 INFO L87 Difference]: Start difference. First operand 124 states and 281 transitions. Second operand 5 states. [2020-10-15 18:33:24,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:24,613 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-10-15 18:33:24,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:33:24,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:33:24,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:24,615 INFO L225 Difference]: With dead ends: 122 [2020-10-15 18:33:24,615 INFO L226 Difference]: Without dead ends: 97 [2020-10-15 18:33:24,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:33:24,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-15 18:33:24,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-15 18:33:24,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-15 18:33:24,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-10-15 18:33:24,622 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 13 [2020-10-15 18:33:24,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:24,623 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-10-15 18:33:24,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:33:24,623 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-10-15 18:33:24,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:33:24,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:24,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:24,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:33:24,625 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:24,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:24,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1634628682, now seen corresponding path program 1 times [2020-10-15 18:33:24,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:24,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430179238] [2020-10-15 18:33:24,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:24,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430179238] [2020-10-15 18:33:24,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:24,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:33:24,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460221002] [2020-10-15 18:33:24,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:24,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:24,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:24,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:24,681 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states. [2020-10-15 18:33:24,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:24,706 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-10-15 18:33:24,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:24,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-15 18:33:24,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:24,707 INFO L225 Difference]: With dead ends: 115 [2020-10-15 18:33:24,707 INFO L226 Difference]: Without dead ends: 98 [2020-10-15 18:33:24,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:24,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-15 18:33:24,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-10-15 18:33:24,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-15 18:33:24,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-10-15 18:33:24,722 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-10-15 18:33:24,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:24,722 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-10-15 18:33:24,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:24,723 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-10-15 18:33:24,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:33:24,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:24,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:24,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:33:24,726 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:24,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:24,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1887879687, now seen corresponding path program 1 times [2020-10-15 18:33:24,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:24,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522947949] [2020-10-15 18:33:24,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:24,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522947949] [2020-10-15 18:33:24,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:24,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:33:24,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861261521] [2020-10-15 18:33:24,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:33:24,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:24,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:33:24,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:33:24,852 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 6 states. [2020-10-15 18:33:24,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:24,909 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions. [2020-10-15 18:33:24,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:33:24,909 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-15 18:33:24,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:24,910 INFO L225 Difference]: With dead ends: 92 [2020-10-15 18:33:24,910 INFO L226 Difference]: Without dead ends: 36 [2020-10-15 18:33:24,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:33:24,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-15 18:33:24,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-15 18:33:24,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-15 18:33:24,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-10-15 18:33:24,914 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-10-15 18:33:24,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:24,915 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-10-15 18:33:24,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:33:24,915 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-10-15 18:33:24,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:33:24,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:24,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:24,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:33:24,916 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:24,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:24,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1759545272, now seen corresponding path program 1 times [2020-10-15 18:33:24,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:24,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219850886] [2020-10-15 18:33:24,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:24,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:24,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219850886] [2020-10-15 18:33:24,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:24,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:33:24,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295499717] [2020-10-15 18:33:24,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:33:24,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:24,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:33:24,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:33:24,958 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-10-15 18:33:24,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:24,970 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-10-15 18:33:24,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:33:24,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:33:24,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:24,971 INFO L225 Difference]: With dead ends: 35 [2020-10-15 18:33:24,971 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:33:24,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:33:24,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:33:24,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:33:24,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:33:24,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:33:24,972 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-15 18:33:24,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:24,973 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:33:24,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:33:24,973 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:33:24,973 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:33:24,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:33:24,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:33:24 BasicIcfg [2020-10-15 18:33:24,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:33:24,981 INFO L168 Benchmark]: Toolchain (without parser) took 4336.90 ms. Allocated memory was 249.6 MB in the beginning and 368.6 MB in the end (delta: 119.0 MB). Free memory was 204.5 MB in the beginning and 248.1 MB in the end (delta: -43.6 MB). Peak memory consumption was 75.4 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:24,982 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 249.6 MB. Free memory is still 225.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:33:24,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.72 ms. Allocated memory was 249.6 MB in the beginning and 308.8 MB in the end (delta: 59.2 MB). Free memory was 204.5 MB in the beginning and 262.1 MB in the end (delta: -57.7 MB). Peak memory consumption was 30.2 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:24,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.27 ms. Allocated memory is still 308.8 MB. Free memory was 262.1 MB in the beginning and 259.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:24,984 INFO L168 Benchmark]: Boogie Preprocessor took 27.73 ms. Allocated memory is still 308.8 MB. Free memory was 259.6 MB in the beginning and 257.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:24,985 INFO L168 Benchmark]: RCFGBuilder took 398.68 ms. Allocated memory is still 308.8 MB. Free memory was 257.1 MB in the beginning and 235.2 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:24,986 INFO L168 Benchmark]: TraceAbstraction took 3156.50 ms. Allocated memory was 308.8 MB in the beginning and 368.6 MB in the end (delta: 59.8 MB). Free memory was 235.2 MB in the beginning and 248.1 MB in the end (delta: -12.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:24,991 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 249.6 MB. Free memory is still 225.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 692.72 ms. Allocated memory was 249.6 MB in the beginning and 308.8 MB in the end (delta: 59.2 MB). Free memory was 204.5 MB in the beginning and 262.1 MB in the end (delta: -57.7 MB). Peak memory consumption was 30.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 53.27 ms. Allocated memory is still 308.8 MB. Free memory was 262.1 MB in the beginning and 259.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.73 ms. Allocated memory is still 308.8 MB. Free memory was 259.6 MB in the beginning and 257.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 398.68 ms. Allocated memory is still 308.8 MB. Free memory was 257.1 MB in the beginning and 235.2 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3156.50 ms. Allocated memory was 308.8 MB in the beginning and 368.6 MB in the end (delta: 59.8 MB). Free memory was 235.2 MB in the beginning and 248.1 MB in the end (delta: -12.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 833 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 51 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 60 TotalNumberOfCompositions, 2298 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 145 SDtfs, 123 SDslu, 177 SDs, 0 SdLazy, 97 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...