/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/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:00:48,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:00:48,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:00:48,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:00:48,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:00:48,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:00:48,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:00:48,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:00:48,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:00:48,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:00:48,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:00:48,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:00:48,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:00:48,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:00:48,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:00:48,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:00:48,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:00:48,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:00:48,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:00:48,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:00:48,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:00:48,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:00:48,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:00:48,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:00:48,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:00:48,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:00:48,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:00:48,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:00:48,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:00:48,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:00:48,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:00:48,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:00:48,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:00:48,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:00:48,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:00:48,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:00:48,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:00:48,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:00:48,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:00:48,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:00:48,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:00:48,665 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 17:00:48,691 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:00:48,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:00:48,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:00:48,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:00:48,693 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:00:48,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:00:48,694 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:00:48,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:00:48,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:00:48,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:00:48,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:00:48,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:00:48,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:00:48,696 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:00:48,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:00:48,696 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:00:48,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:00:48,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:00:48,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:00:48,697 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:00:48,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:00:48,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:00:48,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:00:48,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:00:48,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:00:48,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:00:48,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:00:48,699 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:00:48,699 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:00:48,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:00:48,700 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:00:49,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:00:49,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:00:49,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:00:49,078 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:00:49,078 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:00:49,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-11-09 17:00:49,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aca1876e/4fd551e8d346432e943663c2d545784d/FLAG82a760ea5 [2020-11-09 17:00:49,864 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:00:49,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-11-09 17:00:49,879 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aca1876e/4fd551e8d346432e943663c2d545784d/FLAG82a760ea5 [2020-11-09 17:00:50,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aca1876e/4fd551e8d346432e943663c2d545784d [2020-11-09 17:00:50,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:00:50,155 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:00:50,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:00:50,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:00:50,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:00:50,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:00:50" (1/1) ... [2020-11-09 17:00:50,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd14c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50, skipping insertion in model container [2020-11-09 17:00:50,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:00:50" (1/1) ... [2020-11-09 17:00:50,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:00:50,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:00:50,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:00:50,716 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:00:50,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:00:50,964 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:00:50,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50 WrapperNode [2020-11-09 17:00:50,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:00:50,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:00:50,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:00:50,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:00:50,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50" (1/1) ... [2020-11-09 17:00:51,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50" (1/1) ... [2020-11-09 17:00:51,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:00:51,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:00:51,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:00:51,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:00:51,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50" (1/1) ... [2020-11-09 17:00:51,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50" (1/1) ... [2020-11-09 17:00:51,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50" (1/1) ... [2020-11-09 17:00:51,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50" (1/1) ... [2020-11-09 17:00:51,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50" (1/1) ... [2020-11-09 17:00:51,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50" (1/1) ... [2020-11-09 17:00:51,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50" (1/1) ... [2020-11-09 17:00:51,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:00:51,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:00:51,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:00:51,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:00:51,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50" (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 17:00:51,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:00:51,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:00:51,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:00:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:00:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:00:51,224 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:00:51,225 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:00:51,225 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:00:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:00:51,226 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:00:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:00:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:00:51,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:00:51,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:00:51,228 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 17:00:51,682 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:00:51,682 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:00:51,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:00:51 BoogieIcfgContainer [2020-11-09 17:00:51,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:00:51,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:00:51,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:00:51,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:00:51,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:00:50" (1/3) ... [2020-11-09 17:00:51,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6357436d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:00:51, skipping insertion in model container [2020-11-09 17:00:51,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:50" (2/3) ... [2020-11-09 17:00:51,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6357436d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:00:51, skipping insertion in model container [2020-11-09 17:00:51,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:00:51" (3/3) ... [2020-11-09 17:00:51,693 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-11-09 17:00:51,708 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:00:51,708 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:00:51,712 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:00:51,713 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:00:51,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,743 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,743 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,744 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,744 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,744 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,744 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,745 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,745 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,745 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,746 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,746 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,746 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,746 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,746 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,747 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,747 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,747 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,747 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,747 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,748 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,748 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,748 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,748 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,749 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,749 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,749 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,749 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,749 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,750 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,750 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,750 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,751 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,751 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,753 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,753 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,754 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,754 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,761 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,761 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,761 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,762 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,764 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,764 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:51,766 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:00:51,778 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:00:51,801 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:00:51,801 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:00:51,801 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:00:51,801 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:00:51,802 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:00:51,802 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:00:51,802 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:00:51,802 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:00:51,814 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:00:51,815 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 17:00:51,818 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 17:00:51,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 17:00:51,863 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 17:00:51,864 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:00:51,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 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. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 17:00:51,871 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 17:00:52,485 WARN L194 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-09 17:00:55,322 WARN L194 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 17:00:55,427 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:00:55,649 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 17:00:55,766 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:00:55,790 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-11-09 17:00:55,790 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-11-09 17:00:55,796 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 17:00:55,828 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 17:00:55,830 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 17:00:55,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:00:55,838 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:55,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:55,839 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:55,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:55,845 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-11-09 17:00:55,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:55,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027146255] [2020-11-09 17:00:55,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:56,037 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 17:00:56,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027146255] [2020-11-09 17:00:56,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:56,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:00:56,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1557817715] [2020-11-09 17:00:56,040 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:56,043 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:56,056 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:00:56,057 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:56,061 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:56,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:00:56,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:56,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:00:56,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:00:56,080 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 17:00:56,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:56,104 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 17:00:56,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:00:56,105 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 17:00:56,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:56,122 INFO L225 Difference]: With dead ends: 362 [2020-11-09 17:00:56,122 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 17:00:56,123 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 17:00:56,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 17:00:56,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 17:00:56,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 17:00:56,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 17:00:56,199 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 17:00:56,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:56,200 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 17:00:56,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:00:56,200 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 17:00:56,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:00:56,203 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:56,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:56,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:00:56,203 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:56,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:56,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-11-09 17:00:56,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:56,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179199834] [2020-11-09 17:00:56,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:56,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:00:56,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179199834] [2020-11-09 17:00:56,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:56,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:00:56,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1430186899] [2020-11-09 17:00:56,407 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:56,409 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:56,411 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 17:00:56,411 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:56,415 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:56,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:00:56,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:56,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:00:56,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:00:56,418 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-11-09 17:00:56,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:56,507 INFO L93 Difference]: Finished difference Result 346 states and 956 transitions. [2020-11-09 17:00:56,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:00:56,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 17:00:56,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:56,514 INFO L225 Difference]: With dead ends: 346 [2020-11-09 17:00:56,515 INFO L226 Difference]: Without dead ends: 282 [2020-11-09 17:00:56,516 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 17:00:56,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-09 17:00:56,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-11-09 17:00:56,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-09 17:00:56,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 804 transitions. [2020-11-09 17:00:56,567 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 804 transitions. Word has length 9 [2020-11-09 17:00:56,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:56,568 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 804 transitions. [2020-11-09 17:00:56,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:00:56,568 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 804 transitions. [2020-11-09 17:00:56,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:00:56,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:56,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:56,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:00:56,572 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:56,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:56,572 INFO L82 PathProgramCache]: Analyzing trace with hash 585999155, now seen corresponding path program 1 times [2020-11-09 17:00:56,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:56,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112961577] [2020-11-09 17:00:56,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:56,692 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 17:00:56,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112961577] [2020-11-09 17:00:56,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:56,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:00:56,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [199246202] [2020-11-09 17:00:56,693 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:56,694 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:56,699 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 20 transitions. [2020-11-09 17:00:56,699 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:56,776 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:56,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:00:56,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:56,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:00:56,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:00:56,778 INFO L87 Difference]: Start difference. First operand 282 states and 804 transitions. Second operand 4 states. [2020-11-09 17:00:56,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:56,808 INFO L93 Difference]: Finished difference Result 306 states and 838 transitions. [2020-11-09 17:00:56,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:00:56,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 17:00:56,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:56,812 INFO L225 Difference]: With dead ends: 306 [2020-11-09 17:00:56,812 INFO L226 Difference]: Without dead ends: 258 [2020-11-09 17:00:56,812 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 17:00:56,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-11-09 17:00:56,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2020-11-09 17:00:56,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-11-09 17:00:56,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 722 transitions. [2020-11-09 17:00:56,825 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 722 transitions. Word has length 10 [2020-11-09 17:00:56,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:56,825 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 722 transitions. [2020-11-09 17:00:56,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:00:56,826 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 722 transitions. [2020-11-09 17:00:56,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:00:56,827 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:56,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:56,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:00:56,828 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:56,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:56,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1013183742, now seen corresponding path program 1 times [2020-11-09 17:00:56,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:56,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263977865] [2020-11-09 17:00:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:56,889 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 17:00:56,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263977865] [2020-11-09 17:00:56,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:56,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:00:56,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [308516995] [2020-11-09 17:00:56,890 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:56,892 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:56,894 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 38 transitions. [2020-11-09 17:00:56,894 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:57,024 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:57,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:00:57,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:57,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:00:57,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:00:57,026 INFO L87 Difference]: Start difference. First operand 258 states and 722 transitions. Second operand 4 states. [2020-11-09 17:00:57,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:57,054 INFO L93 Difference]: Finished difference Result 280 states and 752 transitions. [2020-11-09 17:00:57,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:00:57,058 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 17:00:57,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:57,060 INFO L225 Difference]: With dead ends: 280 [2020-11-09 17:00:57,061 INFO L226 Difference]: Without dead ends: 236 [2020-11-09 17:00:57,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 17:00:57,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-11-09 17:00:57,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2020-11-09 17:00:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-11-09 17:00:57,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 648 transitions. [2020-11-09 17:00:57,074 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 648 transitions. Word has length 11 [2020-11-09 17:00:57,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:57,074 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 648 transitions. [2020-11-09 17:00:57,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:00:57,075 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 648 transitions. [2020-11-09 17:00:57,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:00:57,077 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:57,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:57,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:00:57,077 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:57,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:57,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1343804868, now seen corresponding path program 1 times [2020-11-09 17:00:57,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:57,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587674718] [2020-11-09 17:00:57,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:57,142 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 17:00:57,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587674718] [2020-11-09 17:00:57,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:57,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:00:57,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [230497452] [2020-11-09 17:00:57,144 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:57,146 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:57,149 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 46 transitions. [2020-11-09 17:00:57,149 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:57,254 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:57,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:00:57,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:57,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:00:57,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:00:57,256 INFO L87 Difference]: Start difference. First operand 236 states and 648 transitions. Second operand 5 states. [2020-11-09 17:00:57,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:57,326 INFO L93 Difference]: Finished difference Result 299 states and 792 transitions. [2020-11-09 17:00:57,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:00:57,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 17:00:57,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:57,331 INFO L225 Difference]: With dead ends: 299 [2020-11-09 17:00:57,331 INFO L226 Difference]: Without dead ends: 146 [2020-11-09 17:00:57,332 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 17:00:57,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-09 17:00:57,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-09 17:00:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-09 17:00:57,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-11-09 17:00:57,338 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-11-09 17:00:57,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:57,338 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-11-09 17:00:57,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:00:57,338 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-11-09 17:00:57,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:00:57,343 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:57,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:57,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:00:57,343 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:57,344 INFO L82 PathProgramCache]: Analyzing trace with hash -365258832, now seen corresponding path program 1 times [2020-11-09 17:00:57,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:57,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981430452] [2020-11-09 17:00:57,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:57,401 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 17:00:57,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981430452] [2020-11-09 17:00:57,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:57,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:00:57,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2070326961] [2020-11-09 17:00:57,402 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:57,404 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:57,407 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 51 transitions. [2020-11-09 17:00:57,407 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:57,460 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:57,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:00:57,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:57,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:00:57,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:00:57,462 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-11-09 17:00:57,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:57,529 INFO L93 Difference]: Finished difference Result 218 states and 538 transitions. [2020-11-09 17:00:57,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:00:57,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 17:00:57,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:57,531 INFO L225 Difference]: With dead ends: 218 [2020-11-09 17:00:57,532 INFO L226 Difference]: Without dead ends: 146 [2020-11-09 17:00:57,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 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 17:00:57,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-09 17:00:57,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-09 17:00:57,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-09 17:00:57,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 348 transitions. [2020-11-09 17:00:57,538 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 348 transitions. Word has length 13 [2020-11-09 17:00:57,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:57,538 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 348 transitions. [2020-11-09 17:00:57,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:00:57,538 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 348 transitions. [2020-11-09 17:00:57,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:00:57,539 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:57,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:57,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:00:57,539 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:57,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:57,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1456573974, now seen corresponding path program 2 times [2020-11-09 17:00:57,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:57,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347958894] [2020-11-09 17:00:57,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:57,592 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 17:00:57,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347958894] [2020-11-09 17:00:57,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:57,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:00:57,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [499779205] [2020-11-09 17:00:57,593 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:57,595 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:57,598 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 21 transitions. [2020-11-09 17:00:57,598 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:57,613 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:57,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:00:57,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:57,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:00:57,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:00:57,617 INFO L87 Difference]: Start difference. First operand 146 states and 348 transitions. Second operand 4 states. [2020-11-09 17:00:57,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:57,646 INFO L93 Difference]: Finished difference Result 152 states and 349 transitions. [2020-11-09 17:00:57,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:00:57,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 17:00:57,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:57,652 INFO L225 Difference]: With dead ends: 152 [2020-11-09 17:00:57,652 INFO L226 Difference]: Without dead ends: 134 [2020-11-09 17:00:57,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 17:00:57,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-11-09 17:00:57,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-11-09 17:00:57,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-09 17:00:57,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 310 transitions. [2020-11-09 17:00:57,660 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 310 transitions. Word has length 13 [2020-11-09 17:00:57,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:57,660 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 310 transitions. [2020-11-09 17:00:57,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:00:57,660 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 310 transitions. [2020-11-09 17:00:57,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:00:57,661 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:57,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:57,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:00:57,661 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:57,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:57,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1047574954, now seen corresponding path program 1 times [2020-11-09 17:00:57,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:57,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719726161] [2020-11-09 17:00:57,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:57,775 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 17:00:57,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719726161] [2020-11-09 17:00:57,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:57,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:00:57,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [473401271] [2020-11-09 17:00:57,776 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:57,778 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:57,781 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-11-09 17:00:57,781 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:57,794 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:57,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:00:57,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:57,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:00:57,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:00:57,798 INFO L87 Difference]: Start difference. First operand 134 states and 310 transitions. Second operand 5 states. [2020-11-09 17:00:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:57,844 INFO L93 Difference]: Finished difference Result 162 states and 370 transitions. [2020-11-09 17:00:57,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:00:57,845 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 17:00:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:57,846 INFO L225 Difference]: With dead ends: 162 [2020-11-09 17:00:57,846 INFO L226 Difference]: Without dead ends: 90 [2020-11-09 17:00:57,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:00:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-11-09 17:00:57,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-11-09 17:00:57,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-09 17:00:57,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 194 transitions. [2020-11-09 17:00:57,850 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 194 transitions. Word has length 14 [2020-11-09 17:00:57,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:57,850 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 194 transitions. [2020-11-09 17:00:57,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:00:57,851 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 194 transitions. [2020-11-09 17:00:57,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:00:57,851 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:57,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:57,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:00:57,852 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:57,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:57,852 INFO L82 PathProgramCache]: Analyzing trace with hash 255451346, now seen corresponding path program 1 times [2020-11-09 17:00:57,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:57,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493942000] [2020-11-09 17:00:57,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:57,897 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 17:00:57,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493942000] [2020-11-09 17:00:57,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:57,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:00:57,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [991681270] [2020-11-09 17:00:57,899 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:57,900 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:57,905 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 51 transitions. [2020-11-09 17:00:57,905 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:57,916 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:57,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:00:57,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:57,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:00:57,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:00:57,918 INFO L87 Difference]: Start difference. First operand 90 states and 194 transitions. Second operand 4 states. [2020-11-09 17:00:57,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:57,939 INFO L93 Difference]: Finished difference Result 82 states and 174 transitions. [2020-11-09 17:00:57,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:00:57,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-09 17:00:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:57,940 INFO L225 Difference]: With dead ends: 82 [2020-11-09 17:00:57,940 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:00:57,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 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 17:00:57,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:00:57,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:00:57,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:00:57,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:00:57,941 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-09 17:00:57,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:57,941 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:00:57,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:00:57,942 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:00:57,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:00:57,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:00:57,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:00:57 BasicIcfg [2020-11-09 17:00:57,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:00:57,947 INFO L168 Benchmark]: Toolchain (without parser) took 7799.84 ms. Allocated memory was 151.0 MB in the beginning and 245.4 MB in the end (delta: 94.4 MB). Free memory was 125.5 MB in the beginning and 193.8 MB in the end (delta: -68.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:00:57,948 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:00:57,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 807.78 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 131.0 MB in the end (delta: -6.2 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. [2020-11-09 17:00:57,949 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.46 ms. Allocated memory is still 151.0 MB. Free memory was 131.0 MB in the beginning and 128.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:00:57,950 INFO L168 Benchmark]: Boogie Preprocessor took 62.11 ms. Allocated memory is still 151.0 MB. Free memory was 128.9 MB in the beginning and 127.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:00:57,950 INFO L168 Benchmark]: RCFGBuilder took 558.27 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 105.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:00:57,951 INFO L168 Benchmark]: TraceAbstraction took 6259.46 ms. Allocated memory was 151.0 MB in the beginning and 245.4 MB in the end (delta: 94.4 MB). Free memory was 104.8 MB in the beginning and 193.8 MB in the end (delta: -89.0 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:00:57,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 807.78 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 131.0 MB in the end (delta: -6.2 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 95.46 ms. Allocated memory is still 151.0 MB. Free memory was 131.0 MB in the beginning and 128.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.11 ms. Allocated memory is still 151.0 MB. Free memory was 128.9 MB in the beginning and 127.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 558.27 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 105.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6259.46 ms. Allocated memory was 151.0 MB in the beginning and 245.4 MB in the end (delta: 94.4 MB). Free memory was 104.8 MB in the beginning and 193.8 MB in the end (delta: -89.0 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 209 SDtfs, 157 SDslu, 299 SDs, 0 SdLazy, 91 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 3344 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...