/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:55:22,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:55:22,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:55:22,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-13 18:55:22,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-13 18:55:22,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-13 18:55:22,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-13 18:55:22,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-13 18:55:22,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-13 18:55:22,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-13 18:55:22,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-13 18:55:22,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-13 18:55:22,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-13 18:55:22,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-13 18:55:22,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-13 18:55:22,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-13 18:55:22,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-13 18:55:22,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-13 18:55:22,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-13 18:55:22,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-13 18:55:22,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-13 18:55:22,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-13 18:55:22,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-13 18:55:22,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-13 18:55:22,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-13 18:55:22,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-13 18:55:22,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-13 18:55:22,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-13 18:55:22,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-13 18:55:22,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-13 18:55:22,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-13 18:55:22,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-13 18:55:22,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-13 18:55:22,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-13 18:55:22,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-13 18:55:22,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-13 18:55:22,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-13 18:55:22,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-13 18:55:22,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:55:22,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:55:22,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:55:22,500 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-13 18:55:22,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:55:22,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:55:22,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:55:22,528 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:55:22,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:55:22,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:55:22,530 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:55:22,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:55:22,530 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:55:22,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:55:22,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:55:22,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:55:22,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:55:22,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:55:22,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:55:22,531 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:55:22,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:55:22,532 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:55:22,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:55:22,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:55:22,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:55:22,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:55:22,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:55:22,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:55:22,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:55:22,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:55:22,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:55:22,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:55:22,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:55:22,533 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:55:22,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:55:22,533 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:55:22,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:55:22,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:55:22,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:55:22,806 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:55:22,806 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:55:22,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2021-07-13 18:55:22,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/063e2916f/342e2fb8c270444d85867879c79f63c7/FLAG25317d59a [2021-07-13 18:55:23,302 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:55:23,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2021-07-13 18:55:23,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/063e2916f/342e2fb8c270444d85867879c79f63c7/FLAG25317d59a [2021-07-13 18:55:23,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/063e2916f/342e2fb8c270444d85867879c79f63c7 [2021-07-13 18:55:23,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:55:23,333 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:55:23,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:55:23,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:55:23,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:55:23,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:55:23" (1/1) ... [2021-07-13 18:55:23,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38f9face and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23, skipping insertion in model container [2021-07-13 18:55:23,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:55:23" (1/1) ... [2021-07-13 18:55:23,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:55:23,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:55:23,561 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i[950,963] [2021-07-13 18:55:23,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:55:23,683 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:55:23,692 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i[950,963] [2021-07-13 18:55:23,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:55:23,747 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:55:23,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23 WrapperNode [2021-07-13 18:55:23,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:55:23,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:55:23,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:55:23,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:55:23,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23" (1/1) ... [2021-07-13 18:55:23,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23" (1/1) ... [2021-07-13 18:55:23,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:55:23,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:55:23,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:55:23,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:55:23,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23" (1/1) ... [2021-07-13 18:55:23,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23" (1/1) ... [2021-07-13 18:55:23,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23" (1/1) ... [2021-07-13 18:55:23,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23" (1/1) ... [2021-07-13 18:55:23,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23" (1/1) ... [2021-07-13 18:55:23,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23" (1/1) ... [2021-07-13 18:55:23,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23" (1/1) ... [2021-07-13 18:55:23,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:55:23,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:55:23,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:55:23,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:55:23,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23" (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 [2021-07-13 18:55:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:55:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-13 18:55:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:55:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:55:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-13 18:55:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-13 18:55:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-13 18:55:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-13 18:55:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-13 18:55:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-13 18:55:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-07-13 18:55:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-07-13 18:55:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:55:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-13 18:55:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:55:23,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:55:23,865 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 18:55:24,188 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:55:24,189 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-13 18:55:24,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:55:24 BoogieIcfgContainer [2021-07-13 18:55:24,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:55:24,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:55:24,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:55:24,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:55:24,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:55:23" (1/3) ... [2021-07-13 18:55:24,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624b6f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:55:24, skipping insertion in model container [2021-07-13 18:55:24,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:23" (2/3) ... [2021-07-13 18:55:24,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624b6f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:55:24, skipping insertion in model container [2021-07-13 18:55:24,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:55:24" (3/3) ... [2021-07-13 18:55:24,195 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2021-07-13 18:55:24,199 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:55:24,199 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:55:24,200 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 18:55:24,200 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:55:24,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,221 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,221 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,221 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,223 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,223 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,223 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,223 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,224 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,224 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,224 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,224 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,224 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,225 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,225 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,225 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,225 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,225 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,225 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,225 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,226 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,226 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,226 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,226 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,226 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,226 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,226 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,226 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,227 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,227 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,227 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,227 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,229 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,229 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,229 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,229 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,232 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,232 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,233 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,233 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,234 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,234 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,234 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,234 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,236 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,236 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,236 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,236 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:24,237 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-13 18:55:24,252 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-13 18:55:24,264 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:55:24,264 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:55:24,264 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:55:24,265 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:55:24,265 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:55:24,265 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:55:24,265 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:55:24,265 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 18:55:24,273 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 103 transitions, 226 flow [2021-07-13 18:55:25,377 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38833 states, 38832 states have (on average 4.3550937371240215) internal successors, (169117), 38832 states have internal predecessors, (169117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:25,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 38833 states, 38832 states have (on average 4.3550937371240215) internal successors, (169117), 38832 states have internal predecessors, (169117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:25,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-07-13 18:55:25,629 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:25,632 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:25,632 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:25,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:25,638 INFO L82 PathProgramCache]: Analyzing trace with hash -190192830, now seen corresponding path program 1 times [2021-07-13 18:55:25,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:25,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194811755] [2021-07-13 18:55:25,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:26,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:26,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:26,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194811755] [2021-07-13 18:55:26,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194811755] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:26,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:26,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:55:26,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124721381] [2021-07-13 18:55:26,064 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:55:26,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:26,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:55:26,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:55:26,163 INFO L87 Difference]: Start difference. First operand has 38833 states, 38832 states have (on average 4.3550937371240215) internal successors, (169117), 38832 states have internal predecessors, (169117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:26,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:26,962 INFO L93 Difference]: Finished difference Result 44321 states and 188717 transitions. [2021-07-13 18:55:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:55:26,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-07-13 18:55:26,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:27,396 INFO L225 Difference]: With dead ends: 44321 [2021-07-13 18:55:27,396 INFO L226 Difference]: Without dead ends: 32316 [2021-07-13 18:55:27,397 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 125.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:55:27,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32316 states. [2021-07-13 18:55:28,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32316 to 32316. [2021-07-13 18:55:28,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32316 states, 32315 states have (on average 4.247779668884419) internal successors, (137267), 32315 states have internal predecessors, (137267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:28,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32316 states to 32316 states and 137267 transitions. [2021-07-13 18:55:28,928 INFO L78 Accepts]: Start accepts. Automaton has 32316 states and 137267 transitions. Word has length 59 [2021-07-13 18:55:28,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:28,929 INFO L482 AbstractCegarLoop]: Abstraction has 32316 states and 137267 transitions. [2021-07-13 18:55:28,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:28,929 INFO L276 IsEmpty]: Start isEmpty. Operand 32316 states and 137267 transitions. [2021-07-13 18:55:29,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-13 18:55:29,171 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:29,171 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:29,171 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:55:29,171 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:29,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:29,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1901105981, now seen corresponding path program 1 times [2021-07-13 18:55:29,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:29,172 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255016421] [2021-07-13 18:55:29,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:29,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:29,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:29,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255016421] [2021-07-13 18:55:29,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255016421] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:29,283 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:29,283 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:55:29,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778758875] [2021-07-13 18:55:29,284 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:55:29,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:29,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:55:29,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:55:29,285 INFO L87 Difference]: Start difference. First operand 32316 states and 137267 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:29,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:29,774 INFO L93 Difference]: Finished difference Result 36236 states and 152758 transitions. [2021-07-13 18:55:29,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:55:29,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-07-13 18:55:29,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:29,993 INFO L225 Difference]: With dead ends: 36236 [2021-07-13 18:55:29,993 INFO L226 Difference]: Without dead ends: 29376 [2021-07-13 18:55:29,994 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 79.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:55:30,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29376 states. [2021-07-13 18:55:30,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29376 to 29376. [2021-07-13 18:55:30,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29376 states, 29375 states have (on average 4.221106382978723) internal successors, (123995), 29375 states have internal predecessors, (123995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:31,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29376 states to 29376 states and 123995 transitions. [2021-07-13 18:55:31,107 INFO L78 Accepts]: Start accepts. Automaton has 29376 states and 123995 transitions. Word has length 61 [2021-07-13 18:55:31,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:31,108 INFO L482 AbstractCegarLoop]: Abstraction has 29376 states and 123995 transitions. [2021-07-13 18:55:31,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:31,108 INFO L276 IsEmpty]: Start isEmpty. Operand 29376 states and 123995 transitions. [2021-07-13 18:55:31,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-13 18:55:31,325 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:31,325 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:31,325 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 18:55:31,325 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:31,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1062827298, now seen corresponding path program 1 times [2021-07-13 18:55:31,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:31,326 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947448477] [2021-07-13 18:55:31,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:31,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:31,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:31,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947448477] [2021-07-13 18:55:31,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947448477] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:31,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:31,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:55:31,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446734874] [2021-07-13 18:55:31,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:55:31,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:31,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:55:31,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:55:31,464 INFO L87 Difference]: Start difference. First operand 29376 states and 123995 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:32,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:32,004 INFO L93 Difference]: Finished difference Result 40086 states and 167243 transitions. [2021-07-13 18:55:32,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:55:32,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-07-13 18:55:32,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:32,115 INFO L225 Difference]: With dead ends: 40086 [2021-07-13 18:55:32,115 INFO L226 Difference]: Without dead ends: 19506 [2021-07-13 18:55:32,115 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 114.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:55:32,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19506 states. [2021-07-13 18:55:32,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19506 to 19506. [2021-07-13 18:55:32,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19506 states, 19505 states have (on average 4.092284029735965) internal successors, (79820), 19505 states have internal predecessors, (79820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:32,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19506 states to 19506 states and 79820 transitions. [2021-07-13 18:55:32,883 INFO L78 Accepts]: Start accepts. Automaton has 19506 states and 79820 transitions. Word has length 63 [2021-07-13 18:55:32,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:32,884 INFO L482 AbstractCegarLoop]: Abstraction has 19506 states and 79820 transitions. [2021-07-13 18:55:32,884 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:32,884 INFO L276 IsEmpty]: Start isEmpty. Operand 19506 states and 79820 transitions. [2021-07-13 18:55:32,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 18:55:32,920 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:32,920 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:32,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 18:55:32,920 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:32,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:32,920 INFO L82 PathProgramCache]: Analyzing trace with hash -719271399, now seen corresponding path program 1 times [2021-07-13 18:55:32,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:32,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814478546] [2021-07-13 18:55:32,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:33,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:33,020 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:33,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814478546] [2021-07-13 18:55:33,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814478546] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:33,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:33,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:55:33,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975380746] [2021-07-13 18:55:33,021 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:55:33,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:33,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:55:33,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:55:33,022 INFO L87 Difference]: Start difference. First operand 19506 states and 79820 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:33,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:33,489 INFO L93 Difference]: Finished difference Result 28186 states and 115330 transitions. [2021-07-13 18:55:33,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:55:33,490 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-07-13 18:55:33,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:33,537 INFO L225 Difference]: With dead ends: 28186 [2021-07-13 18:55:33,537 INFO L226 Difference]: Without dead ends: 11911 [2021-07-13 18:55:33,538 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 120.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:55:33,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11911 states. [2021-07-13 18:55:33,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11911 to 11911. [2021-07-13 18:55:33,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11911 states, 11910 states have (on average 4.041813602015114) internal successors, (48138), 11910 states have internal predecessors, (48138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:33,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11911 states to 11911 states and 48138 transitions. [2021-07-13 18:55:33,884 INFO L78 Accepts]: Start accepts. Automaton has 11911 states and 48138 transitions. Word has length 66 [2021-07-13 18:55:33,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:33,884 INFO L482 AbstractCegarLoop]: Abstraction has 11911 states and 48138 transitions. [2021-07-13 18:55:33,884 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:33,884 INFO L276 IsEmpty]: Start isEmpty. Operand 11911 states and 48138 transitions. [2021-07-13 18:55:33,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-13 18:55:33,907 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:33,907 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:33,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 18:55:33,907 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:33,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:33,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1694784545, now seen corresponding path program 1 times [2021-07-13 18:55:33,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:33,908 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830023711] [2021-07-13 18:55:33,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:34,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:34,183 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:34,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830023711] [2021-07-13 18:55:34,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830023711] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:34,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:34,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:55:34,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208684454] [2021-07-13 18:55:34,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:55:34,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:34,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:55:34,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:55:34,187 INFO L87 Difference]: Start difference. First operand 11911 states and 48138 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:34,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:34,342 INFO L93 Difference]: Finished difference Result 13191 states and 52922 transitions. [2021-07-13 18:55:34,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:55:34,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-07-13 18:55:34,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:34,374 INFO L225 Difference]: With dead ends: 13191 [2021-07-13 18:55:34,374 INFO L226 Difference]: Without dead ends: 10951 [2021-07-13 18:55:34,374 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 89.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:55:34,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10951 states. [2021-07-13 18:55:34,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10951 to 10951. [2021-07-13 18:55:34,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10951 states, 10950 states have (on average 4.019178082191781) internal successors, (44010), 10950 states have internal predecessors, (44010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:34,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10951 states to 10951 states and 44010 transitions. [2021-07-13 18:55:34,809 INFO L78 Accepts]: Start accepts. Automaton has 10951 states and 44010 transitions. Word has length 67 [2021-07-13 18:55:34,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:34,810 INFO L482 AbstractCegarLoop]: Abstraction has 10951 states and 44010 transitions. [2021-07-13 18:55:34,810 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:34,810 INFO L276 IsEmpty]: Start isEmpty. Operand 10951 states and 44010 transitions. [2021-07-13 18:55:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-13 18:55:34,829 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:34,829 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:34,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 18:55:34,829 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:34,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:34,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1688661600, now seen corresponding path program 1 times [2021-07-13 18:55:34,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:34,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118868908] [2021-07-13 18:55:34,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:34,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:34,914 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:34,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118868908] [2021-07-13 18:55:34,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118868908] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:34,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:34,914 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:55:34,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278858688] [2021-07-13 18:55:34,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:55:34,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:34,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:55:34,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:55:34,915 INFO L87 Difference]: Start difference. First operand 10951 states and 44010 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:35,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:35,158 INFO L93 Difference]: Finished difference Result 18151 states and 72990 transitions. [2021-07-13 18:55:35,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:55:35,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-07-13 18:55:35,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:35,203 INFO L225 Difference]: With dead ends: 18151 [2021-07-13 18:55:35,203 INFO L226 Difference]: Without dead ends: 13351 [2021-07-13 18:55:35,204 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 133.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:55:35,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13351 states. [2021-07-13 18:55:35,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13351 to 10951. [2021-07-13 18:55:35,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10951 states, 10950 states have (on average 4.007488584474886) internal successors, (43882), 10950 states have internal predecessors, (43882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:35,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10951 states to 10951 states and 43882 transitions. [2021-07-13 18:55:35,624 INFO L78 Accepts]: Start accepts. Automaton has 10951 states and 43882 transitions. Word has length 69 [2021-07-13 18:55:35,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:35,624 INFO L482 AbstractCegarLoop]: Abstraction has 10951 states and 43882 transitions. [2021-07-13 18:55:35,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:35,624 INFO L276 IsEmpty]: Start isEmpty. Operand 10951 states and 43882 transitions. [2021-07-13 18:55:35,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-13 18:55:35,640 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:35,641 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:35,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-13 18:55:35,641 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:35,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:35,641 INFO L82 PathProgramCache]: Analyzing trace with hash -438389976, now seen corresponding path program 2 times [2021-07-13 18:55:35,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:35,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016779541] [2021-07-13 18:55:35,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:35,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:35,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:35,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016779541] [2021-07-13 18:55:35,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016779541] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:35,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:35,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:55:35,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506254832] [2021-07-13 18:55:35,720 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:55:35,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:35,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:55:35,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:55:35,721 INFO L87 Difference]: Start difference. First operand 10951 states and 43882 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:35,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:35,886 INFO L93 Difference]: Finished difference Result 14631 states and 58426 transitions. [2021-07-13 18:55:35,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:55:35,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-07-13 18:55:35,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:35,911 INFO L225 Difference]: With dead ends: 14631 [2021-07-13 18:55:35,911 INFO L226 Difference]: Without dead ends: 6971 [2021-07-13 18:55:35,912 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 92.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:55:35,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6971 states. [2021-07-13 18:55:36,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6971 to 6971. [2021-07-13 18:55:36,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6971 states, 6970 states have (on average 3.9176470588235293) internal successors, (27306), 6970 states have internal predecessors, (27306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:36,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6971 states to 6971 states and 27306 transitions. [2021-07-13 18:55:36,200 INFO L78 Accepts]: Start accepts. Automaton has 6971 states and 27306 transitions. Word has length 69 [2021-07-13 18:55:36,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:36,200 INFO L482 AbstractCegarLoop]: Abstraction has 6971 states and 27306 transitions. [2021-07-13 18:55:36,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:36,200 INFO L276 IsEmpty]: Start isEmpty. Operand 6971 states and 27306 transitions. [2021-07-13 18:55:36,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-13 18:55:36,210 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:36,210 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:36,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-13 18:55:36,210 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:36,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:36,211 INFO L82 PathProgramCache]: Analyzing trace with hash 540312476, now seen corresponding path program 1 times [2021-07-13 18:55:36,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:36,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452401803] [2021-07-13 18:55:36,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:36,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:36,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:36,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452401803] [2021-07-13 18:55:36,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452401803] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:36,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:36,296 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:55:36,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261352310] [2021-07-13 18:55:36,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:55:36,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:36,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:55:36,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:55:36,298 INFO L87 Difference]: Start difference. First operand 6971 states and 27306 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:36,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:36,409 INFO L93 Difference]: Finished difference Result 6331 states and 24714 transitions. [2021-07-13 18:55:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:55:36,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-07-13 18:55:36,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:36,410 INFO L225 Difference]: With dead ends: 6331 [2021-07-13 18:55:36,410 INFO L226 Difference]: Without dead ends: 0 [2021-07-13 18:55:36,411 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 97.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:55:36,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-13 18:55:36,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-13 18:55:36,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:36,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-13 18:55:36,411 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-07-13 18:55:36,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:36,411 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-13 18:55:36,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:36,411 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-13 18:55:36,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 18:55:36,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-13 18:55:36,413 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 18:55:36,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 06:55:36 BasicIcfg [2021-07-13 18:55:36,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 18:55:36,416 INFO L168 Benchmark]: Toolchain (without parser) took 13082.08 ms. Allocated memory was 199.2 MB in the beginning and 6.5 GB in the end (delta: 6.3 GB). Free memory was 161.3 MB in the beginning and 5.2 GB in the end (delta: -5.1 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2021-07-13 18:55:36,416 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 199.2 MB. Free memory is still 179.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:55:36,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.88 ms. Allocated memory is still 199.2 MB. Free memory was 161.1 MB in the beginning and 171.8 MB in the end (delta: -10.7 MB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:36,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.63 ms. Allocated memory is still 199.2 MB. Free memory was 171.8 MB in the beginning and 169.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:36,416 INFO L168 Benchmark]: Boogie Preprocessor took 16.57 ms. Allocated memory is still 199.2 MB. Free memory was 169.7 MB in the beginning and 168.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:36,417 INFO L168 Benchmark]: RCFGBuilder took 400.13 ms. Allocated memory is still 199.2 MB. Free memory was 168.1 MB in the beginning and 141.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:36,417 INFO L168 Benchmark]: TraceAbstraction took 12223.58 ms. Allocated memory was 199.2 MB in the beginning and 6.5 GB in the end (delta: 6.3 GB). Free memory was 141.4 MB in the beginning and 5.2 GB in the end (delta: -5.1 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2021-07-13 18:55:36,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 199.2 MB. Free memory is still 179.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 411.88 ms. Allocated memory is still 199.2 MB. Free memory was 161.1 MB in the beginning and 171.8 MB in the end (delta: -10.7 MB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.63 ms. Allocated memory is still 199.2 MB. Free memory was 171.8 MB in the beginning and 169.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.57 ms. Allocated memory is still 199.2 MB. Free memory was 169.7 MB in the beginning and 168.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 400.13 ms. Allocated memory is still 199.2 MB. Free memory was 168.1 MB in the beginning and 141.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12223.58 ms. Allocated memory was 199.2 MB in the beginning and 6.5 GB in the end (delta: 6.3 GB). Free memory was 141.4 MB in the beginning and 5.2 GB in the end (delta: -5.1 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 134 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12149.5ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 812.7ms, AutomataDifference: 3991.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1112.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1068 SDtfs, 1746 SDslu, 3523 SDs, 0 SdLazy, 239 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 171.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 851.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=38833occurred in iteration=0, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4891.8ms AutomataMinimizationTime, 8 MinimizatonAttempts, 2400 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 53.0ms SsaConstructionTime, 193.3ms SatisfiabilityAnalysisTime, 947.7ms InterpolantComputationTime, 524 NumberOfCodeBlocks, 524 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 516 ConstructedInterpolants, 0 QuantifiedInterpolants, 2688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...