/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-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:42:45,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:42:45,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:42:45,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:42:45,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:42:45,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:42:45,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:42:45,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:42:45,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:42:45,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:42:45,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:42:45,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:42:45,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:42:45,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:42:45,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:42:45,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:42:45,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:42:45,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:42:45,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:42:45,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:42:45,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:42:45,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:42:45,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:42:45,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:42:45,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 15:42:45,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 15:42:45,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 15:42:45,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 15:42:45,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 15:42:45,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 15:42:45,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:42:45,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:42:45,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:42:45,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:42:45,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:42:45,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:42:45,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:42:45,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:42:45,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:42:45,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:42:45,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:42:45,728 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-WP.epf [2020-11-09 15:42:45,785 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:42:45,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:42:45,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:42:45,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:42:45,790 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:42:45,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:42:45,791 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:42:45,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:42:45,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:42:45,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:42:45,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:42:45,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:42:45,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:42:45,793 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:42:45,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:42:45,794 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:42:45,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:42:45,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:42:45,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:42:45,795 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:42:45,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:42:45,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:42:45,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:42:45,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:42:45,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:42:45,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:42:45,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:42:45,797 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:42:45,797 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:42:45,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:42:45,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:42:46,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:42:46,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:42:46,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:42:46,292 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:42:46,295 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:42:46,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-11-09 15:42:46,388 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139f024e7/2760784307034513a296f684a9ecce7e/FLAG732dab834 [2020-11-09 15:42:47,203 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:42:47,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-11-09 15:42:47,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139f024e7/2760784307034513a296f684a9ecce7e/FLAG732dab834 [2020-11-09 15:42:47,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139f024e7/2760784307034513a296f684a9ecce7e [2020-11-09 15:42:47,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:42:47,460 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:42:47,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:42:47,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:42:47,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:42:47,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:42:47" (1/1) ... [2020-11-09 15:42:47,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4457362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47, skipping insertion in model container [2020-11-09 15:42:47,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:42:47" (1/1) ... [2020-11-09 15:42:47,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:42:47,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:42:47,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:42:48,040 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:42:48,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:42:48,203 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:42:48,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:48 WrapperNode [2020-11-09 15:42:48,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:42:48,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:42:48,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:42:48,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:42:48,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:48" (1/1) ... [2020-11-09 15:42:48,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:48" (1/1) ... [2020-11-09 15:42:48,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:42:48,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:42:48,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:42:48,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:42:48,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:48" (1/1) ... [2020-11-09 15:42:48,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:48" (1/1) ... [2020-11-09 15:42:48,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:48" (1/1) ... [2020-11-09 15:42:48,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:48" (1/1) ... [2020-11-09 15:42:48,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:48" (1/1) ... [2020-11-09 15:42:48,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:48" (1/1) ... [2020-11-09 15:42:48,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:48" (1/1) ... [2020-11-09 15:42:48,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:42:48,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:42:48,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:42:48,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:42:48,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:48" (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 15:42:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:42:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:42:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:42:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:42:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:42:48,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:42:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:42:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:42:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:42:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:42:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 15:42:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 15:42:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:42:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:42:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:42:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:42:48,430 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 15:42:48,976 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:42:48,976 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:42:48,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:42:48 BoogieIcfgContainer [2020-11-09 15:42:48,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:42:48,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:42:48,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:42:48,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:42:48,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:42:47" (1/3) ... [2020-11-09 15:42:48,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0a6105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:42:48, skipping insertion in model container [2020-11-09 15:42:48,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:48" (2/3) ... [2020-11-09 15:42:48,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0a6105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:42:48, skipping insertion in model container [2020-11-09 15:42:48,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:42:48" (3/3) ... [2020-11-09 15:42:48,990 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2020-11-09 15:42:49,008 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:42:49,008 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:42:49,012 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:42:49,014 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:42:49,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,059 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,059 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,060 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,060 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,062 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,062 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,063 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,064 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,066 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,066 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,067 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,067 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,069 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,069 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,069 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,069 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,070 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,070 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,070 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,070 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,071 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,071 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,071 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,072 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,075 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,075 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,083 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,083 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,087 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,087 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,087 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,088 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,091 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,091 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:49,094 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:42:49,109 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 15:42:49,136 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:42:49,136 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:42:49,137 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:42:49,137 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:42:49,137 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:42:49,137 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:42:49,137 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:42:49,138 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:42:49,152 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:42:49,153 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 91 transitions, 202 flow [2020-11-09 15:42:49,156 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 91 transitions, 202 flow [2020-11-09 15:42:49,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 91 transitions, 202 flow [2020-11-09 15:42:49,217 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-11-09 15:42:49,217 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:42:49,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 3/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-09 15:42:49,227 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-09 15:42:51,813 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 15:42:51,971 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 15:42:52,568 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 27 [2020-11-09 15:42:52,724 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-11-09 15:42:52,957 WARN L194 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-11-09 15:42:53,679 WARN L194 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 15:42:53,813 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 15:42:54,074 WARN L194 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 15:42:54,202 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 15:42:54,621 INFO L131 LiptonReduction]: Checked pairs total: 3854 [2020-11-09 15:42:54,622 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-11-09 15:42:54,629 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-09 15:42:54,685 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-09 15:42:54,688 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-09 15:42:54,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:42:54,698 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:54,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:54,699 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:54,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:54,705 INFO L82 PathProgramCache]: Analyzing trace with hash -709438342, now seen corresponding path program 1 times [2020-11-09 15:42:54,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:54,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210295519] [2020-11-09 15:42:54,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:54,982 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 15:42:54,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210295519] [2020-11-09 15:42:54,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:54,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:42:54,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [667700376] [2020-11-09 15:42:54,986 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:54,990 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:55,034 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-11-09 15:42:55,034 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:55,039 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:55,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:42:55,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:55,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:42:55,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:42:55,058 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-09 15:42:55,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:55,107 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-09 15:42:55,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:42:55,111 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 15:42:55,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:55,134 INFO L225 Difference]: With dead ends: 670 [2020-11-09 15:42:55,135 INFO L226 Difference]: Without dead ends: 526 [2020-11-09 15:42:55,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:42:55,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-09 15:42:55,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-09 15:42:55,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-09 15:42:55,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-09 15:42:55,253 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-09 15:42:55,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:55,254 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-09 15:42:55,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:42:55,254 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-09 15:42:55,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:42:55,256 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:55,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:55,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:42:55,257 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:55,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:55,258 INFO L82 PathProgramCache]: Analyzing trace with hash 839232956, now seen corresponding path program 1 times [2020-11-09 15:42:55,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:55,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633663680] [2020-11-09 15:42:55,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:55,364 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 15:42:55,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633663680] [2020-11-09 15:42:55,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:55,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:42:55,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1574639660] [2020-11-09 15:42:55,365 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:55,366 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:55,370 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 15:42:55,370 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:55,479 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:55,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:42:55,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:55,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:42:55,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:42:55,485 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-09 15:42:55,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:55,516 INFO L93 Difference]: Finished difference Result 634 states and 2040 transitions. [2020-11-09 15:42:55,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:42:55,517 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 15:42:55,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:55,521 INFO L225 Difference]: With dead ends: 634 [2020-11-09 15:42:55,522 INFO L226 Difference]: Without dead ends: 322 [2020-11-09 15:42:55,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 15:42:55,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-11-09 15:42:55,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2020-11-09 15:42:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-11-09 15:42:55,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 1008 transitions. [2020-11-09 15:42:55,545 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 1008 transitions. Word has length 11 [2020-11-09 15:42:55,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:55,545 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 1008 transitions. [2020-11-09 15:42:55,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:42:55,545 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 1008 transitions. [2020-11-09 15:42:55,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:42:55,547 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:55,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:55,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:42:55,547 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:55,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:55,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1127842304, now seen corresponding path program 1 times [2020-11-09 15:42:55,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:55,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727119654] [2020-11-09 15:42:55,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:55,612 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 15:42:55,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727119654] [2020-11-09 15:42:55,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:55,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:42:55,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [714989756] [2020-11-09 15:42:55,614 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:55,615 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:55,618 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-11-09 15:42:55,618 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:55,624 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:55,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:42:55,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:55,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:42:55,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:42:55,625 INFO L87 Difference]: Start difference. First operand 322 states and 1008 transitions. Second operand 3 states. [2020-11-09 15:42:55,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:55,633 INFO L93 Difference]: Finished difference Result 304 states and 939 transitions. [2020-11-09 15:42:55,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:42:55,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 15:42:55,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:55,637 INFO L225 Difference]: With dead ends: 304 [2020-11-09 15:42:55,637 INFO L226 Difference]: Without dead ends: 304 [2020-11-09 15:42:55,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:42:55,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-11-09 15:42:55,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-11-09 15:42:55,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-11-09 15:42:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 939 transitions. [2020-11-09 15:42:55,653 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 939 transitions. Word has length 12 [2020-11-09 15:42:55,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:55,653 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 939 transitions. [2020-11-09 15:42:55,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:42:55,653 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 939 transitions. [2020-11-09 15:42:55,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:42:55,655 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:55,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:55,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:42:55,656 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:55,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:55,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1624168671, now seen corresponding path program 1 times [2020-11-09 15:42:55,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:55,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124038674] [2020-11-09 15:42:55,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:55,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124038674] [2020-11-09 15:42:55,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:55,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:42:55,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [481967986] [2020-11-09 15:42:55,792 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:55,794 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:55,798 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-11-09 15:42:55,798 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:55,865 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:55,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:42:55,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:55,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:42:55,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:42:55,867 INFO L87 Difference]: Start difference. First operand 304 states and 939 transitions. Second operand 4 states. [2020-11-09 15:42:55,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:55,892 INFO L93 Difference]: Finished difference Result 406 states and 1208 transitions. [2020-11-09 15:42:55,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:42:55,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 15:42:55,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:55,895 INFO L225 Difference]: With dead ends: 406 [2020-11-09 15:42:55,895 INFO L226 Difference]: Without dead ends: 226 [2020-11-09 15:42:55,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 15:42:55,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-09 15:42:55,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-09 15:42:55,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-09 15:42:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 651 transitions. [2020-11-09 15:42:55,906 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 651 transitions. Word has length 13 [2020-11-09 15:42:55,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:55,906 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 651 transitions. [2020-11-09 15:42:55,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:42:55,906 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 651 transitions. [2020-11-09 15:42:55,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:42:55,908 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:55,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:55,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:42:55,908 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:55,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:55,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1524641156, now seen corresponding path program 1 times [2020-11-09 15:42:55,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:55,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075727602] [2020-11-09 15:42:55,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:55,979 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 15:42:55,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075727602] [2020-11-09 15:42:55,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:55,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:42:55,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [111876133] [2020-11-09 15:42:55,981 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:55,983 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:55,988 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-11-09 15:42:55,989 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:56,016 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:56,076 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:56,107 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:56,157 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:56,188 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:56,217 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:56,286 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [6308#(not (= 4 ~__unbuffered_cnt~0))] [2020-11-09 15:42:56,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:42:56,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:56,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:42:56,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:42:56,289 INFO L87 Difference]: Start difference. First operand 226 states and 651 transitions. Second operand 5 states. [2020-11-09 15:42:56,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:56,379 INFO L93 Difference]: Finished difference Result 243 states and 637 transitions. [2020-11-09 15:42:56,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:42:56,379 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 15:42:56,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:56,381 INFO L225 Difference]: With dead ends: 243 [2020-11-09 15:42:56,381 INFO L226 Difference]: Without dead ends: 162 [2020-11-09 15:42:56,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:42:56,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-11-09 15:42:56,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-11-09 15:42:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-09 15:42:56,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 391 transitions. [2020-11-09 15:42:56,389 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 391 transitions. Word has length 14 [2020-11-09 15:42:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:56,390 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 391 transitions. [2020-11-09 15:42:56,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:42:56,390 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 391 transitions. [2020-11-09 15:42:56,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 15:42:56,392 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:56,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:56,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:42:56,393 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:56,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:56,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1193386920, now seen corresponding path program 1 times [2020-11-09 15:42:56,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:56,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566874493] [2020-11-09 15:42:56,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:56,516 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 15:42:56,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566874493] [2020-11-09 15:42:56,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:56,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:42:56,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1507713555] [2020-11-09 15:42:56,517 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:56,521 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:56,555 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-11-09 15:42:56,555 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:56,575 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:56,621 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:56,681 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:56,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 15:42:56,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:56,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 15:42:56,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 15:42:56,683 INFO L87 Difference]: Start difference. First operand 162 states and 391 transitions. Second operand 6 states. [2020-11-09 15:42:56,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:56,743 INFO L93 Difference]: Finished difference Result 158 states and 360 transitions. [2020-11-09 15:42:56,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:42:56,744 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-09 15:42:56,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:56,745 INFO L225 Difference]: With dead ends: 158 [2020-11-09 15:42:56,745 INFO L226 Difference]: Without dead ends: 125 [2020-11-09 15:42:56,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:42:56,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-09 15:42:56,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-09 15:42:56,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-09 15:42:56,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 282 transitions. [2020-11-09 15:42:56,750 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 282 transitions. Word has length 16 [2020-11-09 15:42:56,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:56,751 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 282 transitions. [2020-11-09 15:42:56,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 15:42:56,751 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 282 transitions. [2020-11-09 15:42:56,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 15:42:56,752 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:56,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:56,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:42:56,752 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:56,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:56,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1709090152, now seen corresponding path program 1 times [2020-11-09 15:42:56,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:56,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225191771] [2020-11-09 15:42:56,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:56,818 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 15:42:56,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225191771] [2020-11-09 15:42:56,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:56,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 15:42:56,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1861571056] [2020-11-09 15:42:56,819 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:56,822 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:56,828 INFO L252 McrAutomatonBuilder]: Finished intersection with 27 states and 34 transitions. [2020-11-09 15:42:56,829 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:56,850 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:56,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 15:42:56,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:56,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 15:42:56,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:42:56,851 INFO L87 Difference]: Start difference. First operand 125 states and 282 transitions. Second operand 7 states. [2020-11-09 15:42:56,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:56,920 INFO L93 Difference]: Finished difference Result 120 states and 270 transitions. [2020-11-09 15:42:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 15:42:56,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-09 15:42:56,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:56,922 INFO L225 Difference]: With dead ends: 120 [2020-11-09 15:42:56,922 INFO L226 Difference]: Without dead ends: 111 [2020-11-09 15:42:56,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:42:56,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-11-09 15:42:56,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-11-09 15:42:56,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-11-09 15:42:56,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 254 transitions. [2020-11-09 15:42:56,926 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 254 transitions. Word has length 18 [2020-11-09 15:42:56,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:56,927 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 254 transitions. [2020-11-09 15:42:56,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 15:42:56,927 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 254 transitions. [2020-11-09 15:42:56,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 15:42:56,927 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:56,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:56,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:42:56,928 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:56,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:56,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1760559887, now seen corresponding path program 1 times [2020-11-09 15:42:56,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:56,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554904450] [2020-11-09 15:42:56,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:56,968 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 15:42:56,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554904450] [2020-11-09 15:42:56,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:56,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:42:56,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1376281975] [2020-11-09 15:42:56,969 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:56,972 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:56,979 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 40 transitions. [2020-11-09 15:42:56,980 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:57,005 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:57,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:42:57,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:57,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:42:57,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:42:57,007 INFO L87 Difference]: Start difference. First operand 111 states and 254 transitions. Second operand 4 states. [2020-11-09 15:42:57,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:57,039 INFO L93 Difference]: Finished difference Result 144 states and 327 transitions. [2020-11-09 15:42:57,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:42:57,040 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 15:42:57,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:57,041 INFO L225 Difference]: With dead ends: 144 [2020-11-09 15:42:57,041 INFO L226 Difference]: Without dead ends: 71 [2020-11-09 15:42:57,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 15:42:57,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-09 15:42:57,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-09 15:42:57,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-09 15:42:57,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-11-09 15:42:57,045 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 20 [2020-11-09 15:42:57,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:57,045 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-11-09 15:42:57,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:42:57,045 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-11-09 15:42:57,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 15:42:57,046 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:57,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:57,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:42:57,046 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:57,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:57,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1416850207, now seen corresponding path program 2 times [2020-11-09 15:42:57,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:57,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833895058] [2020-11-09 15:42:57,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:57,084 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 15:42:57,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833895058] [2020-11-09 15:42:57,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:57,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:42:57,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1324920219] [2020-11-09 15:42:57,085 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:57,088 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:57,098 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 74 transitions. [2020-11-09 15:42:57,099 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:57,201 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:57,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:42:57,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:57,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:42:57,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:42:57,202 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-11-09 15:42:57,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:57,220 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-11-09 15:42:57,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:42:57,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 15:42:57,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:57,221 INFO L225 Difference]: With dead ends: 70 [2020-11-09 15:42:57,221 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:42:57,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 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 15:42:57,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:42:57,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:42:57,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:42:57,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:42:57,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-09 15:42:57,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:57,223 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:42:57,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:42:57,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:42:57,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:42:57,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 15:42:57,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:42:57 BasicIcfg [2020-11-09 15:42:57,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:42:57,229 INFO L168 Benchmark]: Toolchain (without parser) took 9774.69 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 134.9 MB in the beginning and 77.8 MB in the end (delta: 57.1 MB). Peak memory consumption was 124.5 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:57,230 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 152.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:42:57,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.99 ms. Allocated memory is still 152.0 MB. Free memory was 134.2 MB in the beginning and 113.6 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:57,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.97 ms. Allocated memory is still 152.0 MB. Free memory was 113.4 MB in the beginning and 111.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:57,232 INFO L168 Benchmark]: Boogie Preprocessor took 46.33 ms. Allocated memory is still 152.0 MB. Free memory was 111.7 MB in the beginning and 110.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:57,233 INFO L168 Benchmark]: RCFGBuilder took 635.57 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 110.0 MB in the beginning and 162.3 MB in the end (delta: -52.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:57,235 INFO L168 Benchmark]: TraceAbstraction took 8246.49 ms. Allocated memory was 182.5 MB in the beginning and 219.2 MB in the end (delta: 36.7 MB). Free memory was 161.8 MB in the beginning and 77.8 MB in the end (delta: 84.0 MB). Peak memory consumption was 120.7 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:57,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 152.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 742.99 ms. Allocated memory is still 152.0 MB. Free memory was 134.2 MB in the beginning and 113.6 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 88.97 ms. Allocated memory is still 152.0 MB. Free memory was 113.4 MB in the beginning and 111.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.33 ms. Allocated memory is still 152.0 MB. Free memory was 111.7 MB in the beginning and 110.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 635.57 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 110.0 MB in the beginning and 162.3 MB in the end (delta: -52.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8246.49 ms. Allocated memory was 182.5 MB in the beginning and 219.2 MB in the end (delta: 36.7 MB). Free memory was 161.8 MB in the beginning and 77.8 MB in the end (delta: 84.0 MB). Peak memory consumption was 120.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1064 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 66 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.4s, 101 PlacesBefore, 38 PlacesAfterwards, 91 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 3854 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 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 188 SDtfs, 165 SDslu, 279 SDs, 0 SdLazy, 160 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 0.4s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 4945 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...