/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/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:18:48,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:18:48,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:18:48,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:18:48,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:18:48,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:18:48,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:18:48,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:18:48,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:18:48,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:18:48,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:18:48,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:18:48,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:18:48,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:18:48,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:18:48,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:18:48,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:18:48,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:18:48,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:18:48,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:18:48,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:18:48,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:18:48,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:18:48,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:18:48,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:18:48,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:18:48,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:18:48,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:18:48,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:18:48,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:18:48,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:18:48,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:18:48,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:18:48,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:18:48,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:18:48,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:18:48,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:18:48,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:18:48,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:18:48,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:18:48,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:18:48,409 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:18:48,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:18:48,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:18:48,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:18:48,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:18:48,433 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:18:48,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:18:48,434 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:18:48,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:18:48,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:18:48,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:18:48,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:18:48,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:18:48,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:18:48,435 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:18:48,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:18:48,435 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:18:48,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:18:48,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:18:48,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:18:48,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:18:48,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:18:48,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:18:48,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:18:48,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:18:48,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:18:48,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:18:48,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:18:48,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:18:48,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:18:48,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:18:48,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:18:48,744 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:18:48,747 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:18:48,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:18:48,750 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:18:48,751 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2020-10-16 11:18:48,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c835ccca/b4dfe0b70e1643e7880c070d8ae58119/FLAG08b034057 [2020-10-16 11:18:49,340 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:18:49,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2020-10-16 11:18:49,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c835ccca/b4dfe0b70e1643e7880c070d8ae58119/FLAG08b034057 [2020-10-16 11:18:49,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c835ccca/b4dfe0b70e1643e7880c070d8ae58119 [2020-10-16 11:18:49,661 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:18:49,662 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:18:49,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:18:49,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:18:49,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:18:49,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:18:49" (1/1) ... [2020-10-16 11:18:49,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b39db90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:49, skipping insertion in model container [2020-10-16 11:18:49,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:18:49" (1/1) ... [2020-10-16 11:18:49,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:18:49,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:18:50,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:18:50,095 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:18:50,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:18:50,331 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:18:50,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:50 WrapperNode [2020-10-16 11:18:50,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:18:50,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:18:50,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:18:50,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:18:50,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:50" (1/1) ... [2020-10-16 11:18:50,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:50" (1/1) ... [2020-10-16 11:18:50,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:18:50,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:18:50,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:18:50,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:18:50,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:50" (1/1) ... [2020-10-16 11:18:50,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:50" (1/1) ... [2020-10-16 11:18:50,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:50" (1/1) ... [2020-10-16 11:18:50,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:50" (1/1) ... [2020-10-16 11:18:50,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:50" (1/1) ... [2020-10-16 11:18:50,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:50" (1/1) ... [2020-10-16 11:18:50,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:50" (1/1) ... [2020-10-16 11:18:50,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:18:50,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:18:50,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:18:50,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:18:50,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:18:50,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:18:50,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:18:50,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:18:50,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:18:50,475 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:18:50,476 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:18:50,476 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:18:50,477 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:18:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:18:50,478 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:18:50,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:18:50,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:18:50,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:18:50,480 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:18:50,835 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:18:50,836 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:18:50,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:18:50 BoogieIcfgContainer [2020-10-16 11:18:50,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:18:50,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:18:50,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:18:50,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:18:50,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:18:49" (1/3) ... [2020-10-16 11:18:50,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2776c221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:18:50, skipping insertion in model container [2020-10-16 11:18:50,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:50" (2/3) ... [2020-10-16 11:18:50,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2776c221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:18:50, skipping insertion in model container [2020-10-16 11:18:50,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:18:50" (3/3) ... [2020-10-16 11:18:50,847 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2020-10-16 11:18:50,858 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:18:50,859 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:18:50,866 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:18:50,867 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:18:50,893 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,893 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,893 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,894 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,894 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,895 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,896 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,896 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,896 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,897 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,897 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,897 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,898 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,898 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,898 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,898 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,903 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,903 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,909 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,909 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,910 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,910 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,915 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,916 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,916 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,916 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:50,918 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:18:50,930 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:18:50,948 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:18:50,949 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:18:50,949 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:18:50,949 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:18:50,949 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:18:50,949 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:18:50,949 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:18:50,950 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:18:50,962 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:18:50,965 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 11:18:50,967 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 11:18:50,968 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 11:18:51,011 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-16 11:18:51,011 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:18:51,016 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 54 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. [2020-10-16 11:18:51,019 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 11:18:52,578 INFO L132 LiptonReduction]: Checked pairs total: 2407 [2020-10-16 11:18:52,578 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 11:18:52,585 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-16 11:18:52,609 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 11:18:52,611 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 11:18:52,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:18:52,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:52,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:52,620 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:52,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:52,626 INFO L82 PathProgramCache]: Analyzing trace with hash 573122436, now seen corresponding path program 1 times [2020-10-16 11:18:52,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:52,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783324659] [2020-10-16 11:18:52,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:52,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:52,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783324659] [2020-10-16 11:18:52,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:52,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:18:52,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384555088] [2020-10-16 11:18:52,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:52,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:52,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:52,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:52,868 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 11:18:52,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:52,930 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-16 11:18:52,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:52,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:18:52,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:52,955 INFO L225 Difference]: With dead ends: 290 [2020-10-16 11:18:52,956 INFO L226 Difference]: Without dead ends: 226 [2020-10-16 11:18:52,958 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 [2020-10-16 11:18:52,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-16 11:18:53,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-16 11:18:53,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-16 11:18:53,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-16 11:18:53,022 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-16 11:18:53,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:53,023 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-16 11:18:53,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:53,023 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-16 11:18:53,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:18:53,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:53,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:53,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:18:53,025 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:53,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:53,026 INFO L82 PathProgramCache]: Analyzing trace with hash 572259518, now seen corresponding path program 1 times [2020-10-16 11:18:53,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:53,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989729965] [2020-10-16 11:18:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:53,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:53,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989729965] [2020-10-16 11:18:53,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:53,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:18:53,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580063764] [2020-10-16 11:18:53,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:53,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:53,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:53,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:53,102 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-16 11:18:53,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:53,114 INFO L93 Difference]: Finished difference Result 220 states and 604 transitions. [2020-10-16 11:18:53,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:53,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 11:18:53,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:53,117 INFO L225 Difference]: With dead ends: 220 [2020-10-16 11:18:53,117 INFO L226 Difference]: Without dead ends: 220 [2020-10-16 11:18:53,118 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 [2020-10-16 11:18:53,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-16 11:18:53,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-10-16 11:18:53,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-16 11:18:53,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 604 transitions. [2020-10-16 11:18:53,145 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 604 transitions. Word has length 9 [2020-10-16 11:18:53,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:53,145 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 604 transitions. [2020-10-16 11:18:53,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:53,145 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 604 transitions. [2020-10-16 11:18:53,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:18:53,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:53,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:53,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:18:53,149 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:53,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:53,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1053246614, now seen corresponding path program 1 times [2020-10-16 11:18:53,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:53,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457793962] [2020-10-16 11:18:53,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:53,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:53,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457793962] [2020-10-16 11:18:53,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:53,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:53,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420776079] [2020-10-16 11:18:53,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:53,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:53,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:53,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:53,246 INFO L87 Difference]: Start difference. First operand 220 states and 604 transitions. Second operand 3 states. [2020-10-16 11:18:53,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:53,261 INFO L93 Difference]: Finished difference Result 296 states and 766 transitions. [2020-10-16 11:18:53,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:53,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 11:18:53,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:53,264 INFO L225 Difference]: With dead ends: 296 [2020-10-16 11:18:53,264 INFO L226 Difference]: Without dead ends: 236 [2020-10-16 11:18:53,264 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 [2020-10-16 11:18:53,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-16 11:18:53,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 212. [2020-10-16 11:18:53,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-16 11:18:53,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 548 transitions. [2020-10-16 11:18:53,284 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 548 transitions. Word has length 10 [2020-10-16 11:18:53,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:53,284 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 548 transitions. [2020-10-16 11:18:53,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:53,285 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 548 transitions. [2020-10-16 11:18:53,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:18:53,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:53,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:53,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:18:53,287 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:53,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:53,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1826039448, now seen corresponding path program 1 times [2020-10-16 11:18:53,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:53,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032909327] [2020-10-16 11:18:53,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:53,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:53,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032909327] [2020-10-16 11:18:53,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:53,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:18:53,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991748146] [2020-10-16 11:18:53,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:53,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:53,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:53,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:53,327 INFO L87 Difference]: Start difference. First operand 212 states and 548 transitions. Second operand 3 states. [2020-10-16 11:18:53,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:53,332 INFO L93 Difference]: Finished difference Result 203 states and 518 transitions. [2020-10-16 11:18:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:53,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 11:18:53,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:53,334 INFO L225 Difference]: With dead ends: 203 [2020-10-16 11:18:53,335 INFO L226 Difference]: Without dead ends: 203 [2020-10-16 11:18:53,335 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 [2020-10-16 11:18:53,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-16 11:18:53,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-16 11:18:53,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-16 11:18:53,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 518 transitions. [2020-10-16 11:18:53,349 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 518 transitions. Word has length 10 [2020-10-16 11:18:53,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:53,349 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 518 transitions. [2020-10-16 11:18:53,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:53,349 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 518 transitions. [2020-10-16 11:18:53,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:18:53,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:53,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:53,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:18:53,352 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:53,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:53,352 INFO L82 PathProgramCache]: Analyzing trace with hash -772648785, now seen corresponding path program 1 times [2020-10-16 11:18:53,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:53,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251043883] [2020-10-16 11:18:53,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:53,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:53,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251043883] [2020-10-16 11:18:53,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:53,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:53,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528980538] [2020-10-16 11:18:53,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:53,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:53,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:53,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:53,409 INFO L87 Difference]: Start difference. First operand 203 states and 518 transitions. Second operand 4 states. [2020-10-16 11:18:53,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:53,444 INFO L93 Difference]: Finished difference Result 240 states and 585 transitions. [2020-10-16 11:18:53,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:18:53,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 11:18:53,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:53,446 INFO L225 Difference]: With dead ends: 240 [2020-10-16 11:18:53,446 INFO L226 Difference]: Without dead ends: 144 [2020-10-16 11:18:53,446 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 [2020-10-16 11:18:53,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-16 11:18:53,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-16 11:18:53,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-16 11:18:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 331 transitions. [2020-10-16 11:18:53,454 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 331 transitions. Word has length 11 [2020-10-16 11:18:53,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:53,454 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 331 transitions. [2020-10-16 11:18:53,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:53,454 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 331 transitions. [2020-10-16 11:18:53,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:18:53,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:53,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:53,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:18:53,456 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:53,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:53,456 INFO L82 PathProgramCache]: Analyzing trace with hash 389651423, now seen corresponding path program 1 times [2020-10-16 11:18:53,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:53,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25413844] [2020-10-16 11:18:53,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:53,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25413844] [2020-10-16 11:18:53,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:53,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:53,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891623102] [2020-10-16 11:18:53,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:53,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:53,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:53,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:53,518 INFO L87 Difference]: Start difference. First operand 144 states and 331 transitions. Second operand 4 states. [2020-10-16 11:18:53,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:53,551 INFO L93 Difference]: Finished difference Result 164 states and 345 transitions. [2020-10-16 11:18:53,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:18:53,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:18:53,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:53,553 INFO L225 Difference]: With dead ends: 164 [2020-10-16 11:18:53,553 INFO L226 Difference]: Without dead ends: 124 [2020-10-16 11:18:53,554 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 [2020-10-16 11:18:53,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-16 11:18:53,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-10-16 11:18:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-16 11:18:53,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 261 transitions. [2020-10-16 11:18:53,559 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 261 transitions. Word has length 12 [2020-10-16 11:18:53,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:53,560 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 261 transitions. [2020-10-16 11:18:53,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:53,560 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 261 transitions. [2020-10-16 11:18:53,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:18:53,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:53,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:53,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:18:53,562 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:53,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:53,562 INFO L82 PathProgramCache]: Analyzing trace with hash -806373780, now seen corresponding path program 1 times [2020-10-16 11:18:53,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:53,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044612957] [2020-10-16 11:18:53,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:53,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:53,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044612957] [2020-10-16 11:18:53,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:53,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:18:53,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876616724] [2020-10-16 11:18:53,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:18:53,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:53,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:18:53,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:53,627 INFO L87 Difference]: Start difference. First operand 124 states and 261 transitions. Second operand 5 states. [2020-10-16 11:18:53,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:53,664 INFO L93 Difference]: Finished difference Result 122 states and 237 transitions. [2020-10-16 11:18:53,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:18:53,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 11:18:53,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:53,665 INFO L225 Difference]: With dead ends: 122 [2020-10-16 11:18:53,665 INFO L226 Difference]: Without dead ends: 97 [2020-10-16 11:18:53,666 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 [2020-10-16 11:18:53,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-16 11:18:53,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-16 11:18:53,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-16 11:18:53,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 186 transitions. [2020-10-16 11:18:53,670 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 186 transitions. Word has length 13 [2020-10-16 11:18:53,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:53,670 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 186 transitions. [2020-10-16 11:18:53,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:18:53,670 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 186 transitions. [2020-10-16 11:18:53,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:18:53,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:53,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:53,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:18:53,672 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:53,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:53,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1341104517, now seen corresponding path program 1 times [2020-10-16 11:18:53,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:53,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368854836] [2020-10-16 11:18:53,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:53,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:53,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368854836] [2020-10-16 11:18:53,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:53,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:53,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636872687] [2020-10-16 11:18:53,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:53,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:53,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:53,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:53,707 INFO L87 Difference]: Start difference. First operand 97 states and 186 transitions. Second operand 3 states. [2020-10-16 11:18:53,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:53,714 INFO L93 Difference]: Finished difference Result 101 states and 184 transitions. [2020-10-16 11:18:53,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:53,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-16 11:18:53,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:53,715 INFO L225 Difference]: With dead ends: 101 [2020-10-16 11:18:53,715 INFO L226 Difference]: Without dead ends: 73 [2020-10-16 11:18:53,716 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 [2020-10-16 11:18:53,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-16 11:18:53,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2020-10-16 11:18:53,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-16 11:18:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 124 transitions. [2020-10-16 11:18:53,718 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 124 transitions. Word has length 14 [2020-10-16 11:18:53,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:53,719 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 124 transitions. [2020-10-16 11:18:53,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:53,719 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 124 transitions. [2020-10-16 11:18:53,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:18:53,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:53,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:53,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 11:18:53,720 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:53,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:53,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1362110025, now seen corresponding path program 1 times [2020-10-16 11:18:53,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:53,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390510644] [2020-10-16 11:18:53,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:53,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390510644] [2020-10-16 11:18:53,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:53,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:18:53,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717804194] [2020-10-16 11:18:53,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:18:53,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:53,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:18:53,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:18:53,792 INFO L87 Difference]: Start difference. First operand 72 states and 124 transitions. Second operand 6 states. [2020-10-16 11:18:53,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:53,823 INFO L93 Difference]: Finished difference Result 67 states and 118 transitions. [2020-10-16 11:18:53,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:18:53,823 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-16 11:18:53,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:53,824 INFO L225 Difference]: With dead ends: 67 [2020-10-16 11:18:53,824 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:18:53,824 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 [2020-10-16 11:18:53,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:18:53,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:18:53,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:18:53,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:18:53,826 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-16 11:18:53,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:53,827 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:18:53,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:18:53,827 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:18:53,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:18:53,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 11:18:53,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:18:53 BasicIcfg [2020-10-16 11:18:53,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:18:53,834 INFO L168 Benchmark]: Toolchain (without parser) took 4170.05 ms. Allocated memory was 140.5 MB in the beginning and 249.6 MB in the end (delta: 109.1 MB). Free memory was 101.9 MB in the beginning and 98.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 112.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:53,835 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 11:18:53,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.06 ms. Allocated memory was 140.5 MB in the beginning and 231.2 MB in the end (delta: 90.7 MB). Free memory was 101.6 MB in the beginning and 196.5 MB in the end (delta: -94.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:53,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.85 ms. Allocated memory is still 231.2 MB. Free memory was 196.5 MB in the beginning and 194.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:53,843 INFO L168 Benchmark]: Boogie Preprocessor took 26.88 ms. Allocated memory is still 231.2 MB. Free memory was 194.7 MB in the beginning and 192.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:53,844 INFO L168 Benchmark]: RCFGBuilder took 431.82 ms. Allocated memory is still 231.2 MB. Free memory was 192.9 MB in the beginning and 170.2 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:53,846 INFO L168 Benchmark]: TraceAbstraction took 2991.17 ms. Allocated memory was 231.2 MB in the beginning and 249.6 MB in the end (delta: 18.4 MB). Free memory was 170.2 MB in the beginning and 98.8 MB in the end (delta: 71.4 MB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:53,858 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 668.06 ms. Allocated memory was 140.5 MB in the beginning and 231.2 MB in the end (delta: 90.7 MB). Free memory was 101.6 MB in the beginning and 196.5 MB in the end (delta: -94.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.85 ms. Allocated memory is still 231.2 MB. Free memory was 196.5 MB in the beginning and 194.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.88 ms. Allocated memory is still 231.2 MB. Free memory was 194.7 MB in the beginning and 192.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.82 ms. Allocated memory is still 231.2 MB. Free memory was 192.9 MB in the beginning and 170.2 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2991.17 ms. Allocated memory was 231.2 MB in the beginning and 249.6 MB in the end (delta: 18.4 MB). Free memory was 170.2 MB in the beginning and 98.8 MB in the end (delta: 71.4 MB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 853 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 72 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 2407 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 167 SDtfs, 120 SDslu, 173 SDs, 0 SdLazy, 83 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 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, 9 MinimizatonAttempts, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 2893 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...