/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:07:35,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:07:35,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:07:35,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:07:35,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:07:35,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:07:35,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:07:35,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:07:35,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:07:35,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:07:35,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:07:35,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:07:35,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:07:35,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:07:35,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:07:35,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:07:35,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:07:35,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:07:35,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:07:35,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:07:35,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:07:35,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:07:35,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:07:35,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:07:35,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:07:35,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:07:35,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:07:35,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:07:35,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:07:35,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:07:35,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:07:35,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:07:35,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:07:35,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:07:35,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:07:35,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:07:35,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:07:35,602 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:07:35,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:07:35,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:07:35,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:07:35,607 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:07:35,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:07:35,607 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:07:35,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:07:35,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:07:35,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:07:35,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:07:35,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:07:35,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:07:35,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:07:35,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:07:35,610 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:07:35,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:07:35,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:07:35,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:07:35,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:07:35,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:07:35,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:07:35,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:07:35,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:07:35,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:07:35,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:07:35,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:07:35,613 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:07:35,613 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:07:35,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:07:35,613 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:07:35,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:07:36,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:07:36,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:07:36,039 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:07:36,040 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:07:36,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2020-11-09 17:07:36,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4ef765bb/15104d45d6974ed5912f69cdfd701589/FLAG3374f0b1f [2020-11-09 17:07:36,888 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:07:36,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2020-11-09 17:07:36,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4ef765bb/15104d45d6974ed5912f69cdfd701589/FLAG3374f0b1f [2020-11-09 17:07:37,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4ef765bb/15104d45d6974ed5912f69cdfd701589 [2020-11-09 17:07:37,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:07:37,116 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:07:37,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:07:37,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:07:37,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:07:37,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:37" (1/1) ... [2020-11-09 17:07:37,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e1d02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37, skipping insertion in model container [2020-11-09 17:07:37,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:37" (1/1) ... [2020-11-09 17:07:37,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:07:37,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:07:37,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:07:37,647 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:07:37,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:07:37,829 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:07:37,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37 WrapperNode [2020-11-09 17:07:37,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:07:37,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:07:37,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:07:37,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:07:37,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37" (1/1) ... [2020-11-09 17:07:37,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37" (1/1) ... [2020-11-09 17:07:37,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:07:37,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:07:37,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:07:37,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:07:37,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37" (1/1) ... [2020-11-09 17:07:37,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37" (1/1) ... [2020-11-09 17:07:37,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37" (1/1) ... [2020-11-09 17:07:37,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37" (1/1) ... [2020-11-09 17:07:37,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37" (1/1) ... [2020-11-09 17:07:37,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37" (1/1) ... [2020-11-09 17:07:37,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37" (1/1) ... [2020-11-09 17:07:37,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:07:37,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:07:37,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:07:37,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:07:37,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37" (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 [2020-11-09 17:07:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:07:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:07:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:07:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:07:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:07:38,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:07:38,005 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:07:38,005 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:07:38,005 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:07:38,005 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:07:38,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:07:38,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:07:38,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:07:38,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:07:38,008 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:07:38,628 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:07:38,629 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:07:38,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:07:38 BoogieIcfgContainer [2020-11-09 17:07:38,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:07:38,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:07:38,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:07:38,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:07:38,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:07:37" (1/3) ... [2020-11-09 17:07:38,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fed8a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:07:38, skipping insertion in model container [2020-11-09 17:07:38,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:37" (2/3) ... [2020-11-09 17:07:38,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fed8a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:07:38, skipping insertion in model container [2020-11-09 17:07:38,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:07:38" (3/3) ... [2020-11-09 17:07:38,644 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_tso.oepc.i [2020-11-09 17:07:38,661 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:07:38,661 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:07:38,665 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:07:38,666 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:07:38,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,721 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,721 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,721 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,722 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,722 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,725 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,725 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,725 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,725 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,725 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,726 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,726 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,726 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,726 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,726 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,728 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,728 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,729 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,729 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,731 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,731 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,731 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,731 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,732 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,732 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,733 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,733 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,744 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,745 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,753 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,754 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:38,765 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:07:38,780 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:07:38,818 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:07:38,819 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:07:38,819 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:07:38,819 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:07:38,819 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:07:38,819 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:07:38,819 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:07:38,819 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:07:38,839 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:07:38,839 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:07:38,843 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:07:38,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 17:07:38,917 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 17:07:38,918 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:07:38,923 INFO L84 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 57 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-11-09 17:07:38,927 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-11-09 17:07:41,523 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 17:07:41,737 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 17:07:42,039 WARN L194 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 17:07:42,155 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-09 17:07:42,372 WARN L194 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 17:07:42,608 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:07:42,723 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:07:42,846 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:07:42,959 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:07:42,964 INFO L131 LiptonReduction]: Checked pairs total: 2462 [2020-11-09 17:07:42,964 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-11-09 17:07:42,972 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 17:07:42,998 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-11-09 17:07:43,001 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-11-09 17:07:43,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:07:43,009 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:43,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:43,010 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:43,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:43,017 INFO L82 PathProgramCache]: Analyzing trace with hash 911607414, now seen corresponding path program 1 times [2020-11-09 17:07:43,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:43,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048857292] [2020-11-09 17:07:43,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:43,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:43,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048857292] [2020-11-09 17:07:43,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:43,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:07:43,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [280320696] [2020-11-09 17:07:43,243 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:43,247 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:43,263 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:07:43,264 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:43,272 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:43,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:07:43,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:43,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:07:43,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:07:43,303 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-11-09 17:07:43,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:43,356 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-11-09 17:07:43,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:07:43,363 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 17:07:43,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:43,388 INFO L225 Difference]: With dead ends: 274 [2020-11-09 17:07:43,388 INFO L226 Difference]: Without dead ends: 226 [2020-11-09 17:07:43,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:07:43,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-09 17:07:43,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-09 17:07:43,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-09 17:07:43,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-11-09 17:07:43,497 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-11-09 17:07:43,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:43,498 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-11-09 17:07:43,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:07:43,498 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-11-09 17:07:43,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:07:43,503 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:43,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:43,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:07:43,503 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:43,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:43,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1804948320, now seen corresponding path program 1 times [2020-11-09 17:07:43,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:43,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685468777] [2020-11-09 17:07:43,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:43,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:43,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685468777] [2020-11-09 17:07:43,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:43,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:07:43,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1419550912] [2020-11-09 17:07:43,743 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:43,744 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:43,746 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 17:07:43,746 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:43,746 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:43,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:07:43,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:43,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:07:43,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:07:43,749 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states. [2020-11-09 17:07:43,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:43,784 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions. [2020-11-09 17:07:43,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:07:43,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 17:07:43,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:43,787 INFO L225 Difference]: With dead ends: 250 [2020-11-09 17:07:43,787 INFO L226 Difference]: Without dead ends: 202 [2020-11-09 17:07:43,788 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 [2020-11-09 17:07:43,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-11-09 17:07:43,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-11-09 17:07:43,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-09 17:07:43,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions. [2020-11-09 17:07:43,804 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9 [2020-11-09 17:07:43,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:43,804 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions. [2020-11-09 17:07:43,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:07:43,804 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2020-11-09 17:07:43,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:07:43,806 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:43,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:43,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:07:43,806 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:43,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:43,807 INFO L82 PathProgramCache]: Analyzing trace with hash 834020007, now seen corresponding path program 1 times [2020-11-09 17:07:43,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:43,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032146551] [2020-11-09 17:07:43,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:43,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:43,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032146551] [2020-11-09 17:07:43,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:43,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:07:43,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1227584134] [2020-11-09 17:07:43,869 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:43,870 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:43,873 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 20 transitions. [2020-11-09 17:07:43,873 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:43,934 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:43,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:07:43,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:43,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:07:43,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:07:43,935 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 4 states. [2020-11-09 17:07:43,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:43,957 INFO L93 Difference]: Finished difference Result 220 states and 576 transitions. [2020-11-09 17:07:43,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:07:43,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 17:07:43,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:43,960 INFO L225 Difference]: With dead ends: 220 [2020-11-09 17:07:43,960 INFO L226 Difference]: Without dead ends: 184 [2020-11-09 17:07:43,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:43,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-09 17:07:43,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2020-11-09 17:07:43,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-09 17:07:43,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 492 transitions. [2020-11-09 17:07:43,972 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 492 transitions. Word has length 10 [2020-11-09 17:07:43,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:43,973 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 492 transitions. [2020-11-09 17:07:43,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:07:43,973 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 492 transitions. [2020-11-09 17:07:43,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:07:43,974 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:43,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:43,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:07:43,975 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:43,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:43,976 INFO L82 PathProgramCache]: Analyzing trace with hash 83805114, now seen corresponding path program 1 times [2020-11-09 17:07:43,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:43,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278191181] [2020-11-09 17:07:43,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:44,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:44,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278191181] [2020-11-09 17:07:44,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:44,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:07:44,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1390384544] [2020-11-09 17:07:44,066 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:44,067 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:44,072 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-11-09 17:07:44,073 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:44,154 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:44,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:07:44,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:44,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:07:44,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:44,159 INFO L87 Difference]: Start difference. First operand 184 states and 492 transitions. Second operand 5 states. [2020-11-09 17:07:44,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:44,225 INFO L93 Difference]: Finished difference Result 241 states and 629 transitions. [2020-11-09 17:07:44,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:07:44,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 17:07:44,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:44,227 INFO L225 Difference]: With dead ends: 241 [2020-11-09 17:07:44,227 INFO L226 Difference]: Without dead ends: 142 [2020-11-09 17:07:44,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:07:44,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-11-09 17:07:44,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2020-11-09 17:07:44,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-09 17:07:44,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 354 transitions. [2020-11-09 17:07:44,235 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 354 transitions. Word has length 11 [2020-11-09 17:07:44,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:44,235 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 354 transitions. [2020-11-09 17:07:44,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:07:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 354 transitions. [2020-11-09 17:07:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:07:44,237 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:44,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:44,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:07:44,237 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:44,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:44,238 INFO L82 PathProgramCache]: Analyzing trace with hash -976750188, now seen corresponding path program 1 times [2020-11-09 17:07:44,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:44,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734992521] [2020-11-09 17:07:44,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:44,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:44,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734992521] [2020-11-09 17:07:44,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:44,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:07:44,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [222929265] [2020-11-09 17:07:44,301 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:44,302 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:44,306 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 46 transitions. [2020-11-09 17:07:44,306 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:44,393 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:44,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:07:44,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:44,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:07:44,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:44,394 INFO L87 Difference]: Start difference. First operand 142 states and 354 transitions. Second operand 5 states. [2020-11-09 17:07:44,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:44,441 INFO L93 Difference]: Finished difference Result 172 states and 419 transitions. [2020-11-09 17:07:44,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:07:44,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 17:07:44,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:44,443 INFO L225 Difference]: With dead ends: 172 [2020-11-09 17:07:44,443 INFO L226 Difference]: Without dead ends: 76 [2020-11-09 17:07:44,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:07:44,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-09 17:07:44,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-09 17:07:44,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-09 17:07:44,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 169 transitions. [2020-11-09 17:07:44,448 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 169 transitions. Word has length 12 [2020-11-09 17:07:44,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:44,449 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 169 transitions. [2020-11-09 17:07:44,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:07:44,449 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 169 transitions. [2020-11-09 17:07:44,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:07:44,450 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:44,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:44,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:07:44,450 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:44,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:44,451 INFO L82 PathProgramCache]: Analyzing trace with hash -254241509, now seen corresponding path program 1 times [2020-11-09 17:07:44,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:44,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296526493] [2020-11-09 17:07:44,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:44,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296526493] [2020-11-09 17:07:44,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:44,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:07:44,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1206613526] [2020-11-09 17:07:44,511 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:44,513 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:44,515 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-11-09 17:07:44,516 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:44,544 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:44,561 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:44,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:07:44,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:44,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:07:44,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:07:44,562 INFO L87 Difference]: Start difference. First operand 76 states and 169 transitions. Second operand 4 states. [2020-11-09 17:07:44,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:44,610 INFO L93 Difference]: Finished difference Result 87 states and 174 transitions. [2020-11-09 17:07:44,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:07:44,611 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 17:07:44,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:44,612 INFO L225 Difference]: With dead ends: 87 [2020-11-09 17:07:44,612 INFO L226 Difference]: Without dead ends: 66 [2020-11-09 17:07:44,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:44,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-09 17:07:44,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-11-09 17:07:44,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-09 17:07:44,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 133 transitions. [2020-11-09 17:07:44,616 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 133 transitions. Word has length 13 [2020-11-09 17:07:44,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:44,616 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 133 transitions. [2020-11-09 17:07:44,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:07:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 133 transitions. [2020-11-09 17:07:44,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:07:44,617 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:44,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:44,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:07:44,617 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:44,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:44,618 INFO L82 PathProgramCache]: Analyzing trace with hash 734665460, now seen corresponding path program 1 times [2020-11-09 17:07:44,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:44,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888422844] [2020-11-09 17:07:44,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:44,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888422844] [2020-11-09 17:07:44,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:44,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:07:44,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1227673529] [2020-11-09 17:07:44,683 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:44,685 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:44,687 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 22 transitions. [2020-11-09 17:07:44,688 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:44,714 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3719#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:07:44,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 17:07:44,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:44,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 17:07:44,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:07:44,717 INFO L87 Difference]: Start difference. First operand 66 states and 133 transitions. Second operand 6 states. [2020-11-09 17:07:44,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:44,769 INFO L93 Difference]: Finished difference Result 62 states and 108 transitions. [2020-11-09 17:07:44,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:07:44,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-09 17:07:44,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:44,770 INFO L225 Difference]: With dead ends: 62 [2020-11-09 17:07:44,770 INFO L226 Difference]: Without dead ends: 47 [2020-11-09 17:07:44,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:07:44,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-09 17:07:44,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-09 17:07:44,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-09 17:07:44,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 78 transitions. [2020-11-09 17:07:44,774 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 78 transitions. Word has length 14 [2020-11-09 17:07:44,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:44,774 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 78 transitions. [2020-11-09 17:07:44,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 17:07:44,774 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 78 transitions. [2020-11-09 17:07:44,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:07:44,777 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:44,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:44,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:07:44,777 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:44,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:44,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1299079363, now seen corresponding path program 1 times [2020-11-09 17:07:44,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:44,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311124757] [2020-11-09 17:07:44,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:44,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:44,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311124757] [2020-11-09 17:07:44,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:44,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 17:07:44,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1455327791] [2020-11-09 17:07:44,874 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:44,876 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:44,879 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 25 transitions. [2020-11-09 17:07:44,880 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:44,896 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:44,915 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3884#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:07:44,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 17:07:44,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:44,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 17:07:44,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:07:44,916 INFO L87 Difference]: Start difference. First operand 47 states and 78 transitions. Second operand 7 states. [2020-11-09 17:07:44,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:44,974 INFO L93 Difference]: Finished difference Result 40 states and 62 transitions. [2020-11-09 17:07:44,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:07:44,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-09 17:07:44,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:44,975 INFO L225 Difference]: With dead ends: 40 [2020-11-09 17:07:44,975 INFO L226 Difference]: Without dead ends: 34 [2020-11-09 17:07:44,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:07:44,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-09 17:07:44,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-09 17:07:44,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-09 17:07:44,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 52 transitions. [2020-11-09 17:07:44,979 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 52 transitions. Word has length 15 [2020-11-09 17:07:44,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:44,979 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 52 transitions. [2020-11-09 17:07:44,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 17:07:44,979 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2020-11-09 17:07:44,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:07:44,980 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:44,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:44,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:07:44,980 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:44,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:44,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1284707522, now seen corresponding path program 1 times [2020-11-09 17:07:44,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:44,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936871541] [2020-11-09 17:07:44,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:45,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:45,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936871541] [2020-11-09 17:07:45,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:45,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:07:45,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1348640766] [2020-11-09 17:07:45,033 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:45,035 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:45,039 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 25 transitions. [2020-11-09 17:07:45,039 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:45,051 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:45,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:07:45,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:45,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:07:45,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:45,052 INFO L87 Difference]: Start difference. First operand 34 states and 52 transitions. Second operand 5 states. [2020-11-09 17:07:45,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:45,083 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-11-09 17:07:45,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:07:45,083 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 17:07:45,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:45,084 INFO L225 Difference]: With dead ends: 33 [2020-11-09 17:07:45,084 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:07:45,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:07:45,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:07:45,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:07:45,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:07:45,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:07:45,085 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 17:07:45,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:45,085 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:07:45,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:07:45,085 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:07:45,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:07:45,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:07:45,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:07:45 BasicIcfg [2020-11-09 17:07:45,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:07:45,091 INFO L168 Benchmark]: Toolchain (without parser) took 7978.99 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 128.2 MB in the beginning and 94.4 MB in the end (delta: 33.8 MB). Peak memory consumption was 66.3 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:45,091 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 125.8 MB. Free memory was 96.8 MB in the beginning and 96.6 MB in the end (delta: 120.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:07:45,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.69 ms. Allocated memory is still 154.1 MB. Free memory was 127.5 MB in the beginning and 121.3 MB in the end (delta: 6.2 MB). Peak memory consumption was 21.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:45,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.34 ms. Allocated memory is still 154.1 MB. Free memory was 121.3 MB in the beginning and 119.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:45,094 INFO L168 Benchmark]: Boogie Preprocessor took 30.24 ms. Allocated memory is still 154.1 MB. Free memory was 119.2 MB in the beginning and 118.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:45,094 INFO L168 Benchmark]: RCFGBuilder took 719.74 ms. Allocated memory is still 154.1 MB. Free memory was 117.8 MB in the beginning and 134.9 MB in the end (delta: -17.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:45,095 INFO L168 Benchmark]: TraceAbstraction took 6454.69 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 134.4 MB in the beginning and 94.4 MB in the end (delta: 40.0 MB). Peak memory consumption was 70.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:45,099 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 125.8 MB. Free memory was 96.8 MB in the beginning and 96.6 MB in the end (delta: 120.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 711.69 ms. Allocated memory is still 154.1 MB. Free memory was 127.5 MB in the beginning and 121.3 MB in the end (delta: 6.2 MB). Peak memory consumption was 21.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.34 ms. Allocated memory is still 154.1 MB. Free memory was 121.3 MB in the beginning and 119.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.24 ms. Allocated memory is still 154.1 MB. Free memory was 119.2 MB in the beginning and 118.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 719.74 ms. Allocated memory is still 154.1 MB. Free memory was 117.8 MB in the beginning and 134.9 MB in the end (delta: -17.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6454.69 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 134.4 MB in the beginning and 94.4 MB in the end (delta: 40.0 MB). Peak memory consumption was 70.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 736 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 46 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.1s, 85 PlacesBefore, 31 PlacesAfterwards, 78 TransitionsBefore, 22 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2462 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: 6.2s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 171 SDtfs, 162 SDslu, 266 SDs, 0 SdLazy, 132 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 3684 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...