/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.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:01:11,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:01:11,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:01:11,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:01:11,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:01:11,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:01:11,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:01:11,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:01:11,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:01:11,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:01:11,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:01:11,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:01:11,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:01:11,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:01:11,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:01:11,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:01:11,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:01:11,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:01:11,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:01:11,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:01:11,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:01:11,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:01:11,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:01:11,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:01:11,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:01:11,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:01:11,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:01:11,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:01:11,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:01:11,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:01:11,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:01:11,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:01:11,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:01:11,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:01:11,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:01:11,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:01:11,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:01:11,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:01:11,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:01:11,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:01:11,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:01:11,447 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 [2020-10-21 22:01:11,478 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:01:11,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:01:11,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:01:11,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:01:11,480 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:01:11,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:01:11,481 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:01:11,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:01:11,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:01:11,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:01:11,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:01:11,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:01:11,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:01:11,482 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:01:11,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:01:11,482 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:01:11,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:01:11,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:01:11,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:01:11,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:01:11,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:01:11,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:01:11,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:01:11,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:01:11,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:01:11,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:01:11,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:01:11,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:01:11,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:01:11,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:01:11,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:01:11,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:01:11,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:01:11,848 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:01:11,848 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:01:11,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2020-10-21 22:01:11,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c81ab1e63/48dba42477e04ac19c45f9c3ef471c84/FLAG941ba2884 [2020-10-21 22:01:12,507 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:01:12,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2020-10-21 22:01:12,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c81ab1e63/48dba42477e04ac19c45f9c3ef471c84/FLAG941ba2884 [2020-10-21 22:01:12,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c81ab1e63/48dba42477e04ac19c45f9c3ef471c84 [2020-10-21 22:01:12,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:01:12,781 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:01:12,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:01:12,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:01:12,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:01:12,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:01:12" (1/1) ... [2020-10-21 22:01:12,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2100e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:12, skipping insertion in model container [2020-10-21 22:01:12,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:01:12" (1/1) ... [2020-10-21 22:01:12,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:01:12,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:01:13,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:01:13,398 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:01:13,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:01:13,560 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:01:13,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:13 WrapperNode [2020-10-21 22:01:13,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:01:13,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:01:13,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:01:13,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:01:13,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:13" (1/1) ... [2020-10-21 22:01:13,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:13" (1/1) ... [2020-10-21 22:01:13,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:01:13,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:01:13,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:01:13,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:01:13,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:13" (1/1) ... [2020-10-21 22:01:13,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:13" (1/1) ... [2020-10-21 22:01:13,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:13" (1/1) ... [2020-10-21 22:01:13,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:13" (1/1) ... [2020-10-21 22:01:13,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:13" (1/1) ... [2020-10-21 22:01:13,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:13" (1/1) ... [2020-10-21 22:01:13,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:13" (1/1) ... [2020-10-21 22:01:13,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:01:13,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:01:13,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:01:13,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:01:13,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:13" (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 [2020-10-21 22:01:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:01:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:01:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:01:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:01:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 22:01:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 22:01:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 22:01:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 22:01:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 22:01:13,712 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 22:01:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:01:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:01:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:01:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:01:13,715 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:01:14,131 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:01:14,132 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 22:01:14,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:01:14 BoogieIcfgContainer [2020-10-21 22:01:14,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:01:14,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:01:14,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:01:14,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:01:14,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:01:12" (1/3) ... [2020-10-21 22:01:14,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e937e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:01:14, skipping insertion in model container [2020-10-21 22:01:14,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:13" (2/3) ... [2020-10-21 22:01:14,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e937e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:01:14, skipping insertion in model container [2020-10-21 22:01:14,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:01:14" (3/3) ... [2020-10-21 22:01:14,144 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2020-10-21 22:01:14,155 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:01:14,156 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:01:14,163 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:01:14,164 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:01:14,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,194 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,194 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,195 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,195 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,195 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,196 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,197 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,198 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,199 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,203 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,204 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,204 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,216 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,217 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,223 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,223 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,224 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,224 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:14,227 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:01:14,241 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 22:01:14,261 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:01:14,261 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:01:14,261 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:01:14,262 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:01:14,262 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:01:14,262 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:01:14,262 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:01:14,262 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:01:14,275 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:01:14,279 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-21 22:01:14,282 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-21 22:01:14,286 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-21 22:01:14,342 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-21 22:01:14,342 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:01:14,348 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 22:01:14,351 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 22:01:16,405 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-21 22:01:16,616 INFO L131 LiptonReduction]: Checked pairs total: 3321 [2020-10-21 22:01:16,617 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-10-21 22:01:16,624 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-21 22:01:16,655 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-21 22:01:16,657 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-21 22:01:16,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:01:16,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:16,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:16,671 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:16,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:16,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1248499387, now seen corresponding path program 1 times [2020-10-21 22:01:16,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:16,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702692837] [2020-10-21 22:01:16,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:16,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:16,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702692837] [2020-10-21 22:01:16,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:16,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:01:16,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758152961] [2020-10-21 22:01:16,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:01:16,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:16,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:01:16,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:01:16,950 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-21 22:01:17,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:17,000 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-21 22:01:17,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:01:17,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:01:17,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:17,018 INFO L225 Difference]: With dead ends: 282 [2020-10-21 22:01:17,019 INFO L226 Difference]: Without dead ends: 218 [2020-10-21 22:01:17,020 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 [2020-10-21 22:01:17,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-21 22:01:17,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-21 22:01:17,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-21 22:01:17,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-21 22:01:17,089 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-21 22:01:17,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:17,090 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-21 22:01:17,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:01:17,090 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-21 22:01:17,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 22:01:17,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:17,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:17,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:01:17,093 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:17,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:17,093 INFO L82 PathProgramCache]: Analyzing trace with hash 48774317, now seen corresponding path program 1 times [2020-10-21 22:01:17,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:17,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865620258] [2020-10-21 22:01:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:17,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865620258] [2020-10-21 22:01:17,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:17,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:01:17,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321173312] [2020-10-21 22:01:17,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:01:17,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:17,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:01:17,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:01:17,215 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-21 22:01:17,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:17,245 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-21 22:01:17,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:01:17,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-21 22:01:17,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:17,247 INFO L225 Difference]: With dead ends: 242 [2020-10-21 22:01:17,247 INFO L226 Difference]: Without dead ends: 146 [2020-10-21 22:01:17,248 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 [2020-10-21 22:01:17,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-21 22:01:17,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-21 22:01:17,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-21 22:01:17,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-21 22:01:17,266 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-21 22:01:17,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:17,267 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-21 22:01:17,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:01:17,267 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-21 22:01:17,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:01:17,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:17,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:17,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:01:17,269 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:17,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:17,269 INFO L82 PathProgramCache]: Analyzing trace with hash -604430829, now seen corresponding path program 1 times [2020-10-21 22:01:17,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:17,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794559013] [2020-10-21 22:01:17,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:17,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794559013] [2020-10-21 22:01:17,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:17,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:01:17,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48807000] [2020-10-21 22:01:17,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:01:17,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:17,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:01:17,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:01:17,320 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-10-21 22:01:17,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:17,328 INFO L93 Difference]: Finished difference Result 144 states and 355 transitions. [2020-10-21 22:01:17,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:01:17,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-21 22:01:17,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:17,331 INFO L225 Difference]: With dead ends: 144 [2020-10-21 22:01:17,331 INFO L226 Difference]: Without dead ends: 144 [2020-10-21 22:01:17,331 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 [2020-10-21 22:01:17,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-21 22:01:17,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-21 22:01:17,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-21 22:01:17,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-10-21 22:01:17,343 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 11 [2020-10-21 22:01:17,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:17,344 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-10-21 22:01:17,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:01:17,344 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-10-21 22:01:17,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:01:17,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:17,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:17,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:01:17,346 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:17,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:17,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1306895020, now seen corresponding path program 1 times [2020-10-21 22:01:17,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:17,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271857669] [2020-10-21 22:01:17,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:17,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:17,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271857669] [2020-10-21 22:01:17,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:17,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:01:17,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303729140] [2020-10-21 22:01:17,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:01:17,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:17,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:01:17,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:01:17,466 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 4 states. [2020-10-21 22:01:17,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:17,522 INFO L93 Difference]: Finished difference Result 164 states and 374 transitions. [2020-10-21 22:01:17,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:01:17,524 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 22:01:17,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:17,525 INFO L225 Difference]: With dead ends: 164 [2020-10-21 22:01:17,525 INFO L226 Difference]: Without dead ends: 124 [2020-10-21 22:01:17,526 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 [2020-10-21 22:01:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-21 22:01:17,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-10-21 22:01:17,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-21 22:01:17,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions. [2020-10-21 22:01:17,538 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 12 [2020-10-21 22:01:17,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:17,539 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 281 transitions. [2020-10-21 22:01:17,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:01:17,539 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-10-21 22:01:17,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:01:17,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:17,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:17,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:01:17,544 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:17,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:17,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1812224197, now seen corresponding path program 1 times [2020-10-21 22:01:17,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:17,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820009565] [2020-10-21 22:01:17,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:17,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:17,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820009565] [2020-10-21 22:01:17,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:17,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:01:17,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557036458] [2020-10-21 22:01:17,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:01:17,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:17,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:01:17,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:01:17,635 INFO L87 Difference]: Start difference. First operand 124 states and 281 transitions. Second operand 5 states. [2020-10-21 22:01:17,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:17,695 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-10-21 22:01:17,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:01:17,695 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-21 22:01:17,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:17,697 INFO L225 Difference]: With dead ends: 122 [2020-10-21 22:01:17,697 INFO L226 Difference]: Without dead ends: 97 [2020-10-21 22:01:17,697 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 [2020-10-21 22:01:17,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-21 22:01:17,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-21 22:01:17,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-21 22:01:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-10-21 22:01:17,704 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 13 [2020-10-21 22:01:17,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:17,704 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-10-21 22:01:17,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:01:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-10-21 22:01:17,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 22:01:17,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:17,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:17,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:01:17,706 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:17,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:17,707 INFO L82 PathProgramCache]: Analyzing trace with hash 111718158, now seen corresponding path program 1 times [2020-10-21 22:01:17,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:17,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724602580] [2020-10-21 22:01:17,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:17,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724602580] [2020-10-21 22:01:17,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:17,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:01:17,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610169019] [2020-10-21 22:01:17,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:01:17,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:17,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:01:17,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:01:17,754 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states. [2020-10-21 22:01:17,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:17,777 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-10-21 22:01:17,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:01:17,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-21 22:01:17,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:17,779 INFO L225 Difference]: With dead ends: 115 [2020-10-21 22:01:17,779 INFO L226 Difference]: Without dead ends: 98 [2020-10-21 22:01:17,779 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 [2020-10-21 22:01:17,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-21 22:01:17,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-10-21 22:01:17,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-21 22:01:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-10-21 22:01:17,784 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-10-21 22:01:17,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:17,784 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-10-21 22:01:17,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:01:17,785 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-10-21 22:01:17,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:01:17,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:17,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:17,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:01:17,786 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:17,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:17,787 INFO L82 PathProgramCache]: Analyzing trace with hash 567564355, now seen corresponding path program 1 times [2020-10-21 22:01:17,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:17,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354343892] [2020-10-21 22:01:17,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:17,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354343892] [2020-10-21 22:01:17,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:17,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:01:17,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136832030] [2020-10-21 22:01:17,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:01:17,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:17,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:01:17,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:01:17,869 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 6 states. [2020-10-21 22:01:17,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:17,935 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions. [2020-10-21 22:01:17,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:01:17,936 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-21 22:01:17,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:17,937 INFO L225 Difference]: With dead ends: 92 [2020-10-21 22:01:17,937 INFO L226 Difference]: Without dead ends: 36 [2020-10-21 22:01:17,937 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 [2020-10-21 22:01:17,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-21 22:01:17,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-21 22:01:17,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-21 22:01:17,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-10-21 22:01:17,940 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-10-21 22:01:17,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:17,941 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-10-21 22:01:17,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:01:17,941 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-10-21 22:01:17,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 22:01:17,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:17,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:17,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:01:17,942 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:17,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:17,943 INFO L82 PathProgramCache]: Analyzing trace with hash -170339707, now seen corresponding path program 1 times [2020-10-21 22:01:17,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:17,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476683546] [2020-10-21 22:01:17,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:17,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:17,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476683546] [2020-10-21 22:01:17,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:17,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:01:17,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528809221] [2020-10-21 22:01:17,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:01:17,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:17,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:01:17,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:01:17,993 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states. [2020-10-21 22:01:17,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:17,998 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-10-21 22:01:17,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:01:17,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-21 22:01:17,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:17,999 INFO L225 Difference]: With dead ends: 35 [2020-10-21 22:01:17,999 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:01:18,000 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 [2020-10-21 22:01:18,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:01:18,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:01:18,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:01:18,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:01:18,001 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-21 22:01:18,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:18,001 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:01:18,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:01:18,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:01:18,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:01:18,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 22:01:18,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:01:18 BasicIcfg [2020-10-21 22:01:18,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:01:18,007 INFO L168 Benchmark]: Toolchain (without parser) took 5231.99 ms. Allocated memory was 145.2 MB in the beginning and 288.9 MB in the end (delta: 143.7 MB). Free memory was 100.0 MB in the beginning and 249.3 MB in the end (delta: -149.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 22:01:18,008 INFO L168 Benchmark]: CDTParser took 4.36 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 22:01:18,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.21 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 99.2 MB in the beginning and 155.1 MB in the end (delta: -55.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:18,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.27 ms. Allocated memory is still 201.3 MB. Free memory was 155.1 MB in the beginning and 153.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:18,011 INFO L168 Benchmark]: Boogie Preprocessor took 26.55 ms. Allocated memory is still 201.3 MB. Free memory was 153.0 MB in the beginning and 151.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:18,011 INFO L168 Benchmark]: RCFGBuilder took 493.39 ms. Allocated memory is still 201.3 MB. Free memory was 151.6 MB in the beginning and 127.6 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:18,012 INFO L168 Benchmark]: TraceAbstraction took 3869.42 ms. Allocated memory was 201.3 MB in the beginning and 288.9 MB in the end (delta: 87.6 MB). Free memory was 126.9 MB in the beginning and 249.3 MB in the end (delta: -122.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 22:01:18,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.36 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 779.21 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 99.2 MB in the beginning and 155.1 MB in the end (delta: -55.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.27 ms. Allocated memory is still 201.3 MB. Free memory was 155.1 MB in the beginning and 153.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.55 ms. Allocated memory is still 201.3 MB. Free memory was 153.0 MB in the beginning and 151.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 493.39 ms. Allocated memory is still 201.3 MB. Free memory was 151.6 MB in the beginning and 127.6 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3869.42 ms. Allocated memory was 201.3 MB in the beginning and 288.9 MB in the end (delta: 87.6 MB). Free memory was 126.9 MB in the beginning and 249.3 MB in the end (delta: -122.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 988 VarBasedMoverChecksPositive, 47 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 37 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 78 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 85 PlacesBefore, 31 PlacesAfterwards, 78 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 3321 MoverChecksTotal - PositiveResult [Line: 17]: 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, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 144 SDtfs, 121 SDslu, 167 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 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, 0.4s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2883 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...