/usr/bin/java -Xmx16000000000 -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/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 19:49:37,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 19:49:37,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 19:49:37,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 19:49:37,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 19:49:37,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 19:49:37,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 19:49:37,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 19:49:37,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 19:49:37,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 19:49:37,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 19:49:37,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 19:49:37,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 19:49:37,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 19:49:37,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 19:49:37,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 19:49:37,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 19:49:37,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 19:49:37,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 19:49:37,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 19:49:37,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 19:49:37,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 19:49:37,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 19:49:37,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 19:49:37,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 19:49:37,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 19:49:37,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 19:49:37,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 19:49:37,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 19:49:37,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 19:49:37,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 19:49:37,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 19:49:37,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 19:49:37,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 19:49:37,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 19:49:37,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 19:49:37,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 19:49:37,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 19:49:37,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 19:49:37,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 19:49:37,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 19:49:37,639 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 [2021-06-05 19:49:37,658 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 19:49:37,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 19:49:37,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 19:49:37,659 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 19:49:37,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 19:49:37,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 19:49:37,660 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 19:49:37,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 19:49:37,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 19:49:37,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 19:49:37,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 19:49:37,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 19:49:37,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 19:49:37,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 19:49:37,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 19:49:37,662 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 19:49:37,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 19:49:37,662 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 19:49:37,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 19:49:37,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 19:49:37,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 19:49:37,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 19:49:37,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 19:49:37,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 19:49:37,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 19:49:37,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 19:49:37,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 19:49:37,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 19:49:37,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 19:49:37,663 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 19:49:37,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 19:49:37,663 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 19:49:37,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 19:49:38,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 19:49:38,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 19:49:38,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 19:49:38,025 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 19:49:38,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2021-06-05 19:49:38,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b1d60445/11e80297e2d04d5885abc144fca25131/FLAG7504b6eda [2021-06-05 19:49:38,602 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 19:49:38,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2021-06-05 19:49:38,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b1d60445/11e80297e2d04d5885abc144fca25131/FLAG7504b6eda [2021-06-05 19:49:39,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b1d60445/11e80297e2d04d5885abc144fca25131 [2021-06-05 19:49:39,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 19:49:39,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 19:49:39,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 19:49:39,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 19:49:39,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 19:49:39,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:49:39" (1/1) ... [2021-06-05 19:49:39,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a753e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39, skipping insertion in model container [2021-06-05 19:49:39,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:49:39" (1/1) ... [2021-06-05 19:49:39,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 19:49:39,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 19:49:39,281 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/safe001_tso.oepc.i[950,963] [2021-06-05 19:49:39,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:49:39,480 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 19:49:39,492 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/safe001_tso.oepc.i[950,963] [2021-06-05 19:49:39,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:49:39,613 INFO L208 MainTranslator]: Completed translation [2021-06-05 19:49:39,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39 WrapperNode [2021-06-05 19:49:39,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 19:49:39,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 19:49:39,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 19:49:39,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 19:49:39,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39" (1/1) ... [2021-06-05 19:49:39,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39" (1/1) ... [2021-06-05 19:49:39,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 19:49:39,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 19:49:39,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 19:49:39,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 19:49:39,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39" (1/1) ... [2021-06-05 19:49:39,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39" (1/1) ... [2021-06-05 19:49:39,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39" (1/1) ... [2021-06-05 19:49:39,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39" (1/1) ... [2021-06-05 19:49:39,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39" (1/1) ... [2021-06-05 19:49:39,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39" (1/1) ... [2021-06-05 19:49:39,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39" (1/1) ... [2021-06-05 19:49:39,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 19:49:39,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 19:49:39,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 19:49:39,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 19:49:39,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39" (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 [2021-06-05 19:49:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 19:49:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 19:49:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 19:49:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 19:49:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 19:49:39,752 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 19:49:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 19:49:39,752 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 19:49:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 19:49:39,752 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 19:49:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 19:49:39,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 19:49:39,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 19:49:39,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 19:49:39,754 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 19:49:40,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 19:49:40,113 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 19:49:40,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:49:40 BoogieIcfgContainer [2021-06-05 19:49:40,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 19:49:40,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 19:49:40,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 19:49:40,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 19:49:40,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 07:49:39" (1/3) ... [2021-06-05 19:49:40,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f55379f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:49:40, skipping insertion in model container [2021-06-05 19:49:40,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:49:39" (2/3) ... [2021-06-05 19:49:40,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f55379f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:49:40, skipping insertion in model container [2021-06-05 19:49:40,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:49:40" (3/3) ... [2021-06-05 19:49:40,121 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2021-06-05 19:49:40,126 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 19:49:40,126 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 19:49:40,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 19:49:40,127 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 19:49:40,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,159 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,160 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,160 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,160 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,163 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,163 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,173 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,174 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,177 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,178 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,178 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,183 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,183 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,185 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,185 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:49:40,190 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 19:49:40,210 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 19:49:40,235 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 19:49:40,235 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 19:49:40,235 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 19:49:40,236 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 19:49:40,236 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 19:49:40,236 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 19:49:40,236 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 19:49:40,236 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 19:49:40,249 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-06-05 19:49:40,848 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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) [2021-06-05 19:49:40,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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) [2021-06-05 19:49:40,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 19:49:40,938 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:49:40,939 INFO L554 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] [2021-06-05 19:49:40,939 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:49:40,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:49:40,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1833038261, now seen corresponding path program 1 times [2021-06-05 19:49:40,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:49:40,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619651441] [2021-06-05 19:49:40,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:49:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:49:41,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:49:41,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:49:41,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619651441] [2021-06-05 19:49:41,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619651441] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:49:41,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:49:41,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:49:41,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567438125] [2021-06-05 19:49:41,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:49:41,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:49:41,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:49:41,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:49:41,403 INFO L87 Difference]: Start difference. First operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-06-05 19:49:42,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:49:42,076 INFO L93 Difference]: Finished difference Result 18825 states and 64659 transitions. [2021-06-05 19:49:42,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 19:49:42,078 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2021-06-05 19:49:42,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:49:42,138 INFO L225 Difference]: With dead ends: 18825 [2021-06-05 19:49:42,138 INFO L226 Difference]: Without dead ends: 6227 [2021-06-05 19:49:42,140 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 378.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 19:49:42,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6227 states. [2021-06-05 19:49:42,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6227 to 5219. [2021-06-05 19:49:42,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 3.3217707934074356) internal successors, (17333), 5218 states have internal predecessors, (17333), 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) [2021-06-05 19:49:42,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 17333 transitions. [2021-06-05 19:49:42,552 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 17333 transitions. Word has length 48 [2021-06-05 19:49:42,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:49:42,555 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 17333 transitions. [2021-06-05 19:49:42,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-06-05 19:49:42,556 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 17333 transitions. [2021-06-05 19:49:42,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 19:49:42,575 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:49:42,576 INFO L554 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] [2021-06-05 19:49:42,576 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 19:49:42,576 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:49:42,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:49:42,579 INFO L82 PathProgramCache]: Analyzing trace with hash -875734650, now seen corresponding path program 1 times [2021-06-05 19:49:42,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:49:42,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076569419] [2021-06-05 19:49:42,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:49:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:49:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:49:42,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:49:42,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076569419] [2021-06-05 19:49:42,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076569419] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:49:42,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:49:42,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:49:42,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541362796] [2021-06-05 19:49:42,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:49:42,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:49:42,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:49:42,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:49:42,830 INFO L87 Difference]: Start difference. First operand 5219 states and 17333 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-06-05 19:49:43,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:49:43,107 INFO L93 Difference]: Finished difference Result 6681 states and 21973 transitions. [2021-06-05 19:49:43,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:49:43,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2021-06-05 19:49:43,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:49:43,125 INFO L225 Difference]: With dead ends: 6681 [2021-06-05 19:49:43,125 INFO L226 Difference]: Without dead ends: 3141 [2021-06-05 19:49:43,126 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 239.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 19:49:43,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2021-06-05 19:49:43,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 3141. [2021-06-05 19:49:43,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 3.190764331210191) internal successors, (10019), 3140 states have internal predecessors, (10019), 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) [2021-06-05 19:49:43,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 10019 transitions. [2021-06-05 19:49:43,248 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 10019 transitions. Word has length 51 [2021-06-05 19:49:43,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:49:43,248 INFO L482 AbstractCegarLoop]: Abstraction has 3141 states and 10019 transitions. [2021-06-05 19:49:43,249 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-06-05 19:49:43,249 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 10019 transitions. [2021-06-05 19:49:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 19:49:43,259 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:49:43,259 INFO L554 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] [2021-06-05 19:49:43,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 19:49:43,259 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:49:43,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:49:43,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1477862989, now seen corresponding path program 1 times [2021-06-05 19:49:43,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:49:43,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965682452] [2021-06-05 19:49:43,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:49:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:49:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:49:43,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:49:43,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965682452] [2021-06-05 19:49:43,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965682452] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:49:43,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:49:43,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 19:49:43,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790062243] [2021-06-05 19:49:43,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 19:49:43,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:49:43,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 19:49:43,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 19:49:43,462 INFO L87 Difference]: Start difference. First operand 3141 states and 10019 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2021-06-05 19:49:43,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:49:43,618 INFO L93 Difference]: Finished difference Result 3397 states and 10771 transitions. [2021-06-05 19:49:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:49:43,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 54 [2021-06-05 19:49:43,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:49:43,634 INFO L225 Difference]: With dead ends: 3397 [2021-06-05 19:49:43,635 INFO L226 Difference]: Without dead ends: 2949 [2021-06-05 19:49:43,635 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:49:43,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2021-06-05 19:49:43,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 2949. [2021-06-05 19:49:43,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2948 states have (on average 3.1706241519674356) internal successors, (9347), 2948 states have internal predecessors, (9347), 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) [2021-06-05 19:49:43,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 9347 transitions. [2021-06-05 19:49:43,720 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 9347 transitions. Word has length 54 [2021-06-05 19:49:43,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:49:43,721 INFO L482 AbstractCegarLoop]: Abstraction has 2949 states and 9347 transitions. [2021-06-05 19:49:43,721 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2021-06-05 19:49:43,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 9347 transitions. [2021-06-05 19:49:43,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 19:49:43,728 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:49:43,729 INFO L554 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] [2021-06-05 19:49:43,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 19:49:43,729 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:49:43,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:49:43,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1305438726, now seen corresponding path program 1 times [2021-06-05 19:49:43,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:49:43,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371489824] [2021-06-05 19:49:43,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:49:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:49:43,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:49:43,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:49:43,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371489824] [2021-06-05 19:49:43,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371489824] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:49:43,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:49:43,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 19:49:43,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595403] [2021-06-05 19:49:43,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 19:49:43,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:49:43,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 19:49:43,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 19:49:43,844 INFO L87 Difference]: Start difference. First operand 2949 states and 9347 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-06-05 19:49:44,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:49:44,036 INFO L93 Difference]: Finished difference Result 3229 states and 10181 transitions. [2021-06-05 19:49:44,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:49:44,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 55 [2021-06-05 19:49:44,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:49:44,065 INFO L225 Difference]: With dead ends: 3229 [2021-06-05 19:49:44,065 INFO L226 Difference]: Without dead ends: 2829 [2021-06-05 19:49:44,065 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 181.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:49:44,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2021-06-05 19:49:44,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2797. [2021-06-05 19:49:44,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2796 states have (on average 3.1548640915593706) internal successors, (8821), 2796 states have internal predecessors, (8821), 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) [2021-06-05 19:49:44,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 8821 transitions. [2021-06-05 19:49:44,134 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 8821 transitions. Word has length 55 [2021-06-05 19:49:44,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:49:44,135 INFO L482 AbstractCegarLoop]: Abstraction has 2797 states and 8821 transitions. [2021-06-05 19:49:44,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-06-05 19:49:44,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 8821 transitions. [2021-06-05 19:49:44,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 19:49:44,142 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:49:44,142 INFO L554 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] [2021-06-05 19:49:44,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 19:49:44,146 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:49:44,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:49:44,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1495849580, now seen corresponding path program 1 times [2021-06-05 19:49:44,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:49:44,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732438744] [2021-06-05 19:49:44,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:49:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:49:44,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:49:44,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:49:44,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732438744] [2021-06-05 19:49:44,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732438744] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:49:44,341 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:49:44,341 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:49:44,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35553870] [2021-06-05 19:49:44,342 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:49:44,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:49:44,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:49:44,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:49:44,343 INFO L87 Difference]: Start difference. First operand 2797 states and 8821 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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) [2021-06-05 19:49:44,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:49:44,496 INFO L93 Difference]: Finished difference Result 4793 states and 15082 transitions. [2021-06-05 19:49:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 19:49:44,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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 56 [2021-06-05 19:49:44,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:49:44,507 INFO L225 Difference]: With dead ends: 4793 [2021-06-05 19:49:44,507 INFO L226 Difference]: Without dead ends: 2833 [2021-06-05 19:49:44,508 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.3ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 19:49:44,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2021-06-05 19:49:44,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 2417. [2021-06-05 19:49:44,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2416 states have (on average 3.156456953642384) internal successors, (7626), 2416 states have internal predecessors, (7626), 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) [2021-06-05 19:49:44,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 7626 transitions. [2021-06-05 19:49:44,585 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 7626 transitions. Word has length 56 [2021-06-05 19:49:44,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:49:44,585 INFO L482 AbstractCegarLoop]: Abstraction has 2417 states and 7626 transitions. [2021-06-05 19:49:44,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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) [2021-06-05 19:49:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 7626 transitions. [2021-06-05 19:49:44,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 19:49:44,618 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:49:44,618 INFO L554 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] [2021-06-05 19:49:44,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 19:49:44,618 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:49:44,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:49:44,619 INFO L82 PathProgramCache]: Analyzing trace with hash 299649944, now seen corresponding path program 2 times [2021-06-05 19:49:44,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:49:44,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871203409] [2021-06-05 19:49:44,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:49:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:49:44,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:49:44,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:49:44,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871203409] [2021-06-05 19:49:44,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871203409] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:49:44,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:49:44,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:49:44,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840494359] [2021-06-05 19:49:44,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:49:44,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:49:44,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:49:44,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:49:44,752 INFO L87 Difference]: Start difference. First operand 2417 states and 7626 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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) [2021-06-05 19:49:44,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:49:44,855 INFO L93 Difference]: Finished difference Result 2865 states and 8922 transitions. [2021-06-05 19:49:44,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:49:44,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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 56 [2021-06-05 19:49:44,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:49:44,860 INFO L225 Difference]: With dead ends: 2865 [2021-06-05 19:49:44,860 INFO L226 Difference]: Without dead ends: 1285 [2021-06-05 19:49:44,860 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 96.4ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 19:49:44,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2021-06-05 19:49:44,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1285. [2021-06-05 19:49:44,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1284 states have (on average 2.9883177570093458) internal successors, (3837), 1284 states have internal predecessors, (3837), 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) [2021-06-05 19:49:44,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 3837 transitions. [2021-06-05 19:49:44,888 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 3837 transitions. Word has length 56 [2021-06-05 19:49:44,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:49:44,889 INFO L482 AbstractCegarLoop]: Abstraction has 1285 states and 3837 transitions. [2021-06-05 19:49:44,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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) [2021-06-05 19:49:44,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 3837 transitions. [2021-06-05 19:49:44,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 19:49:44,891 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:49:44,891 INFO L554 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] [2021-06-05 19:49:44,891 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 19:49:44,891 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:49:44,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:49:44,892 INFO L82 PathProgramCache]: Analyzing trace with hash 2078823676, now seen corresponding path program 3 times [2021-06-05 19:49:44,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:49:44,892 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440654782] [2021-06-05 19:49:44,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:49:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:49:45,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:49:45,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:49:45,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440654782] [2021-06-05 19:49:45,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440654782] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:49:45,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:49:45,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 19:49:45,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829733198] [2021-06-05 19:49:45,003 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 19:49:45,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:49:45,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 19:49:45,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 19:49:45,004 INFO L87 Difference]: Start difference. First operand 1285 states and 3837 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2021-06-05 19:49:45,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:49:45,097 INFO L93 Difference]: Finished difference Result 1486 states and 4388 transitions. [2021-06-05 19:49:45,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:49:45,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 56 [2021-06-05 19:49:45,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:49:45,100 INFO L225 Difference]: With dead ends: 1486 [2021-06-05 19:49:45,100 INFO L226 Difference]: Without dead ends: 1150 [2021-06-05 19:49:45,101 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 89.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:49:45,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2021-06-05 19:49:45,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1150. [2021-06-05 19:49:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 2.947780678851175) internal successors, (3387), 1149 states have internal predecessors, (3387), 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) [2021-06-05 19:49:45,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 3387 transitions. [2021-06-05 19:49:45,124 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 3387 transitions. Word has length 56 [2021-06-05 19:49:45,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:49:45,125 INFO L482 AbstractCegarLoop]: Abstraction has 1150 states and 3387 transitions. [2021-06-05 19:49:45,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2021-06-05 19:49:45,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 3387 transitions. [2021-06-05 19:49:45,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 19:49:45,127 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:49:45,127 INFO L554 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] [2021-06-05 19:49:45,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 19:49:45,127 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:49:45,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:49:45,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1611481061, now seen corresponding path program 1 times [2021-06-05 19:49:45,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:49:45,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940107922] [2021-06-05 19:49:45,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:49:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:49:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:49:45,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:49:45,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940107922] [2021-06-05 19:49:45,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940107922] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:49:45,226 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:49:45,226 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:49:45,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888303890] [2021-06-05 19:49:45,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:49:45,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:49:45,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:49:45,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:49:45,229 INFO L87 Difference]: Start difference. First operand 1150 states and 3387 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-06-05 19:49:45,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:49:45,343 INFO L93 Difference]: Finished difference Result 1042 states and 2967 transitions. [2021-06-05 19:49:45,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:49:45,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2021-06-05 19:49:45,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:49:45,345 INFO L225 Difference]: With dead ends: 1042 [2021-06-05 19:49:45,345 INFO L226 Difference]: Without dead ends: 790 [2021-06-05 19:49:45,346 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 98.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 19:49:45,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2021-06-05 19:49:45,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2021-06-05 19:49:45,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 2.790874524714829) internal successors, (2202), 789 states have internal predecessors, (2202), 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) [2021-06-05 19:49:45,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 2202 transitions. [2021-06-05 19:49:45,362 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 2202 transitions. Word has length 57 [2021-06-05 19:49:45,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:49:45,362 INFO L482 AbstractCegarLoop]: Abstraction has 790 states and 2202 transitions. [2021-06-05 19:49:45,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-06-05 19:49:45,362 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 2202 transitions. [2021-06-05 19:49:45,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 19:49:45,364 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:49:45,364 INFO L554 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] [2021-06-05 19:49:45,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 19:49:45,364 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:49:45,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:49:45,365 INFO L82 PathProgramCache]: Analyzing trace with hash 2015620850, now seen corresponding path program 1 times [2021-06-05 19:49:45,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:49:45,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884224226] [2021-06-05 19:49:45,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:49:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:49:45,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:49:45,455 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:49:45,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884224226] [2021-06-05 19:49:45,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884224226] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:49:45,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:49:45,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:49:45,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413841523] [2021-06-05 19:49:45,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:49:45,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:49:45,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:49:45,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:49:45,457 INFO L87 Difference]: Start difference. First operand 790 states and 2202 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2021-06-05 19:49:45,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:49:45,533 INFO L93 Difference]: Finished difference Result 493 states and 1311 transitions. [2021-06-05 19:49:45,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 19:49:45,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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 58 [2021-06-05 19:49:45,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:49:45,534 INFO L225 Difference]: With dead ends: 493 [2021-06-05 19:49:45,534 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 19:49:45,534 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 101.5ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 19:49:45,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 19:49:45,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 19:49:45,534 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) [2021-06-05 19:49:45,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 19:49:45,535 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-06-05 19:49:45,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:49:45,535 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 19:49:45,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2021-06-05 19:49:45,535 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 19:49:45,535 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 19:49:45,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 19:49:45,537 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 19:49:45,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 07:49:45 BasicIcfg [2021-06-05 19:49:45,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 19:49:45,540 INFO L168 Benchmark]: Toolchain (without parser) took 6453.00 ms. Allocated memory was 362.8 MB in the beginning and 786.4 MB in the end (delta: 423.6 MB). Free memory was 326.9 MB in the beginning and 656.8 MB in the end (delta: -329.9 MB). Peak memory consumption was 95.0 MB. Max. memory is 16.0 GB. [2021-06-05 19:49:45,540 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 362.8 MB. Free memory is still 345.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 19:49:45,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.66 ms. Allocated memory is still 362.8 MB. Free memory was 326.7 MB in the beginning and 324.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.0 GB. [2021-06-05 19:49:45,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.59 ms. Allocated memory is still 362.8 MB. Free memory was 324.0 MB in the beginning and 321.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:49:45,540 INFO L168 Benchmark]: Boogie Preprocessor took 20.37 ms. Allocated memory is still 362.8 MB. Free memory was 321.9 MB in the beginning and 320.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:49:45,541 INFO L168 Benchmark]: RCFGBuilder took 438.82 ms. Allocated memory is still 362.8 MB. Free memory was 320.8 MB in the beginning and 295.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 19:49:45,541 INFO L168 Benchmark]: TraceAbstraction took 5422.41 ms. Allocated memory was 362.8 MB in the beginning and 786.4 MB in the end (delta: 423.6 MB). Free memory was 295.7 MB in the beginning and 656.8 MB in the end (delta: -361.1 MB). Peak memory consumption was 64.6 MB. Max. memory is 16.0 GB. [2021-06-05 19:49:45,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 362.8 MB. Free memory is still 345.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 522.66 ms. Allocated memory is still 362.8 MB. Free memory was 326.7 MB in the beginning and 324.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.59 ms. Allocated memory is still 362.8 MB. Free memory was 324.0 MB in the beginning and 321.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.37 ms. Allocated memory is still 362.8 MB. Free memory was 321.9 MB in the beginning and 320.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 438.82 ms. Allocated memory is still 362.8 MB. Free memory was 320.8 MB in the beginning and 295.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5422.41 ms. Allocated memory was 362.8 MB in the beginning and 786.4 MB in the end (delta: 423.6 MB). Free memory was 295.7 MB in the beginning and 656.8 MB in the end (delta: -361.1 MB). Peak memory consumption was 64.6 MB. Max. memory is 16.0 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 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5302.5ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 169.1ms, AutomataDifference: 2038.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 611.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 925 SDtfs, 1331 SDslu, 3120 SDs, 0 SdLazy, 333 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 364.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1536.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9331occurred in iteration=0, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 819.9ms AutomataMinimizationTime, 9 MinimizatonAttempts, 1456 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 38.6ms SsaConstructionTime, 210.6ms SatisfiabilityAnalysisTime, 1196.4ms InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 1930 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...