/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 17:16:38,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 17:16:38,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 17:16:38,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-12 17:16:38,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-12 17:16:38,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-12 17:16:38,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-12 17:16:38,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-12 17:16:38,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-12 17:16:38,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-12 17:16:38,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-12 17:16:38,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-12 17:16:38,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-12 17:16:38,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-12 17:16:38,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-12 17:16:38,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-12 17:16:38,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-12 17:16:38,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-12 17:16:38,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-12 17:16:38,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-12 17:16:38,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-12 17:16:38,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-12 17:16:38,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-12 17:16:38,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-12 17:16:38,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-12 17:16:38,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-12 17:16:38,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-12 17:16:38,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-12 17:16:38,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-12 17:16:38,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-12 17:16:38,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-12 17:16:38,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-12 17:16:38,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-12 17:16:38,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-12 17:16:38,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-12 17:16:38,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-12 17:16:38,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-12 17:16:38,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-12 17:16:38,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 17:16:38,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 17:16:38,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 17:16:38,829 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 [2021-06-12 17:16:38,845 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 17:16:38,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 17:16:38,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 17:16:38,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 17:16:38,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 17:16:38,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 17:16:38,847 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 17:16:38,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 17:16:38,847 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 17:16:38,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 17:16:38,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 17:16:38,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 17:16:38,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 17:16:38,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 17:16:38,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 17:16:38,848 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 17:16:38,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 17:16:38,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 17:16:38,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 17:16:38,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 17:16:38,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 17:16:38,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 17:16:38,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 17:16:38,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:16:38,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 17:16:38,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 17:16:38,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 17:16:38,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 17:16:38,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 17:16:38,850 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 17:16:38,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 17:16:38,850 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 17:16:39,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 17:16:39,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 17:16:39,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 17:16:39,097 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 17:16:39,098 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 17:16:39,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2021-06-12 17:16:39,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/833438d63/784065c5436542c682e1358069fa1d3b/FLAG4f9d239a4 [2021-06-12 17:16:39,583 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 17:16:39,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2021-06-12 17:16:39,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/833438d63/784065c5436542c682e1358069fa1d3b/FLAG4f9d239a4 [2021-06-12 17:16:39,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/833438d63/784065c5436542c682e1358069fa1d3b [2021-06-12 17:16:39,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 17:16:39,945 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 17:16:39,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 17:16:39,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 17:16:39,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 17:16:39,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:16:39" (1/1) ... [2021-06-12 17:16:39,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7594495e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:39, skipping insertion in model container [2021-06-12 17:16:39,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:16:39" (1/1) ... [2021-06-12 17:16:39,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 17:16:39,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 17:16:40,103 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/safe011_tso.opt.i[949,962] [2021-06-12 17:16:40,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:16:40,233 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 17:16:40,241 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/safe011_tso.opt.i[949,962] [2021-06-12 17:16:40,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:16:40,314 INFO L208 MainTranslator]: Completed translation [2021-06-12 17:16:40,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:40 WrapperNode [2021-06-12 17:16:40,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 17:16:40,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 17:16:40,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 17:16:40,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 17:16:40,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:40" (1/1) ... [2021-06-12 17:16:40,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:40" (1/1) ... [2021-06-12 17:16:40,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 17:16:40,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 17:16:40,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 17:16:40,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 17:16:40,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:40" (1/1) ... [2021-06-12 17:16:40,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:40" (1/1) ... [2021-06-12 17:16:40,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:40" (1/1) ... [2021-06-12 17:16:40,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:40" (1/1) ... [2021-06-12 17:16:40,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:40" (1/1) ... [2021-06-12 17:16:40,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:40" (1/1) ... [2021-06-12 17:16:40,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:40" (1/1) ... [2021-06-12 17:16:40,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 17:16:40,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 17:16:40,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 17:16:40,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 17:16:40,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:40" (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 [2021-06-12 17:16:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 17:16:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-12 17:16:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 17:16:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 17:16:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-12 17:16:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-12 17:16:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-12 17:16:40,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-12 17:16:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-12 17:16:40,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-12 17:16:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 17:16:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-12 17:16:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 17:16:40,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 17:16:40,409 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 17:16:40,702 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 17:16:40,703 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-12 17:16:40,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:16:40 BoogieIcfgContainer [2021-06-12 17:16:40,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 17:16:40,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 17:16:40,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 17:16:40,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 17:16:40,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 05:16:39" (1/3) ... [2021-06-12 17:16:40,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b924d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:16:40, skipping insertion in model container [2021-06-12 17:16:40,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:16:40" (2/3) ... [2021-06-12 17:16:40,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b924d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:16:40, skipping insertion in model container [2021-06-12 17:16:40,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:16:40" (3/3) ... [2021-06-12 17:16:40,709 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2021-06-12 17:16:40,713 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 17:16:40,713 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 17:16:40,713 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 17:16:40,713 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 17:16:40,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,734 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,734 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,734 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,734 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,735 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,735 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,735 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,735 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,735 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,736 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,736 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,736 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,736 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,736 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,736 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,736 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,737 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,737 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,737 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,737 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,739 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,740 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,740 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,740 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,744 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,744 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,744 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,746 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,746 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,746 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,746 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:16:40,747 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-12 17:16:40,761 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-12 17:16:40,774 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:16:40,774 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:16:40,774 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:16:40,774 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:16:40,774 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:16:40,774 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:16:40,774 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:16:40,775 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:16:40,781 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-06-12 17:16:41,177 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) [2021-06-12 17:16:41,208 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) [2021-06-12 17:16:41,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-12 17:16:41,273 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:16:41,273 INFO L472 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] [2021-06-12 17:16:41,273 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:16:41,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:16:41,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1134513361, now seen corresponding path program 1 times [2021-06-12 17:16:41,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:16:41,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771251175] [2021-06-12 17:16:41,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:16:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:16:41,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:16:41,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:16:41,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771251175] [2021-06-12 17:16:41,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771251175] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:16:41,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:16:41,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:16:41,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399362716] [2021-06-12 17:16:41,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:16:41,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:16:41,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:16:41,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:16:41,632 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 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) [2021-06-12 17:16:41,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:16:41,890 INFO L93 Difference]: Finished difference Result 13118 states and 45582 transitions. [2021-06-12 17:16:41,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:16:41,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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 [2021-06-12 17:16:41,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:16:41,932 INFO L225 Difference]: With dead ends: 13118 [2021-06-12 17:16:41,932 INFO L226 Difference]: Without dead ends: 4963 [2021-06-12 17:16:41,933 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 112.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:16:41,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4963 states. [2021-06-12 17:16:42,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4963 to 4963. [2021-06-12 17:16:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4963 states, 4962 states have (on average 3.4014510278113663) internal successors, (16878), 4962 states have internal predecessors, (16878), 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) [2021-06-12 17:16:42,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4963 states to 4963 states and 16878 transitions. [2021-06-12 17:16:42,120 INFO L78 Accepts]: Start accepts. Automaton has 4963 states and 16878 transitions. Word has length 48 [2021-06-12 17:16:42,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:16:42,121 INFO L482 AbstractCegarLoop]: Abstraction has 4963 states and 16878 transitions. [2021-06-12 17:16:42,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) [2021-06-12 17:16:42,121 INFO L276 IsEmpty]: Start isEmpty. Operand 4963 states and 16878 transitions. [2021-06-12 17:16:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-06-12 17:16:42,165 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:16:42,165 INFO L472 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] [2021-06-12 17:16:42,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 17:16:42,165 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:16:42,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:16:42,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1805902004, now seen corresponding path program 1 times [2021-06-12 17:16:42,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:16:42,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579711693] [2021-06-12 17:16:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:16:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:16:42,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:16:42,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:16:42,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579711693] [2021-06-12 17:16:42,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579711693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:16:42,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:16:42,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:16:42,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600531748] [2021-06-12 17:16:42,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:16:42,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:16:42,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:16:42,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:16:42,287 INFO L87 Difference]: Start difference. First operand 4963 states and 16878 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-06-12 17:16:42,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:16:42,413 INFO L93 Difference]: Finished difference Result 5987 states and 20175 transitions. [2021-06-12 17:16:42,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:16:42,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2021-06-12 17:16:42,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:16:42,436 INFO L225 Difference]: With dead ends: 5987 [2021-06-12 17:16:42,436 INFO L226 Difference]: Without dead ends: 4783 [2021-06-12 17:16:42,438 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 76.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:16:42,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2021-06-12 17:16:42,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4783. [2021-06-12 17:16:42,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4783 states, 4782 states have (on average 3.386449184441656) internal successors, (16194), 4782 states have internal predecessors, (16194), 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) [2021-06-12 17:16:42,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4783 states to 4783 states and 16194 transitions. [2021-06-12 17:16:42,575 INFO L78 Accepts]: Start accepts. Automaton has 4783 states and 16194 transitions. Word has length 50 [2021-06-12 17:16:42,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:16:42,576 INFO L482 AbstractCegarLoop]: Abstraction has 4783 states and 16194 transitions. [2021-06-12 17:16:42,577 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-06-12 17:16:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 4783 states and 16194 transitions. [2021-06-12 17:16:42,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-12 17:16:42,585 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:16:42,586 INFO L472 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] [2021-06-12 17:16:42,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 17:16:42,586 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:16:42,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:16:42,586 INFO L82 PathProgramCache]: Analyzing trace with hash 591446496, now seen corresponding path program 1 times [2021-06-12 17:16:42,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:16:42,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720022517] [2021-06-12 17:16:42,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:16:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:16:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:16:42,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:16:42,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720022517] [2021-06-12 17:16:42,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720022517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:16:42,699 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:16:42,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:16:42,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096890077] [2021-06-12 17:16:42,699 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:16:42,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:16:42,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:16:42,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:16:42,700 INFO L87 Difference]: Start difference. First operand 4783 states and 16194 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-06-12 17:16:42,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:16:42,823 INFO L93 Difference]: Finished difference Result 7891 states and 26221 transitions. [2021-06-12 17:16:42,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:16:42,824 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 [2021-06-12 17:16:42,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:16:42,848 INFO L225 Difference]: With dead ends: 7891 [2021-06-12 17:16:42,848 INFO L226 Difference]: Without dead ends: 5287 [2021-06-12 17:16:42,848 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 75.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:16:42,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5287 states. [2021-06-12 17:16:42,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5287 to 4447. [2021-06-12 17:16:42,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4447 states, 4446 states have (on average 3.2989203778677463) internal successors, (14667), 4446 states have internal predecessors, (14667), 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) [2021-06-12 17:16:42,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4447 states to 4447 states and 14667 transitions. [2021-06-12 17:16:42,962 INFO L78 Accepts]: Start accepts. Automaton has 4447 states and 14667 transitions. Word has length 51 [2021-06-12 17:16:42,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:16:42,963 INFO L482 AbstractCegarLoop]: Abstraction has 4447 states and 14667 transitions. [2021-06-12 17:16:42,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-06-12 17:16:42,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4447 states and 14667 transitions. [2021-06-12 17:16:42,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-12 17:16:42,971 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:16:42,971 INFO L472 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] [2021-06-12 17:16:42,971 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 17:16:42,971 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:16:42,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:16:42,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1199641965, now seen corresponding path program 1 times [2021-06-12 17:16:42,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:16:42,972 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019046806] [2021-06-12 17:16:42,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:16:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:16:43,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:16:43,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:16:43,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019046806] [2021-06-12 17:16:43,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019046806] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:16:43,079 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:16:43,079 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:16:43,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338339450] [2021-06-12 17:16:43,079 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:16:43,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:16:43,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:16:43,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:16:43,081 INFO L87 Difference]: Start difference. First operand 4447 states and 14667 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-06-12 17:16:43,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:16:43,179 INFO L93 Difference]: Finished difference Result 4847 states and 15882 transitions. [2021-06-12 17:16:43,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:16:43,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2021-06-12 17:16:43,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:16:43,197 INFO L225 Difference]: With dead ends: 4847 [2021-06-12 17:16:43,198 INFO L226 Difference]: Without dead ends: 4147 [2021-06-12 17:16:43,198 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 74.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:16:43,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4147 states. [2021-06-12 17:16:43,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4147 to 4147. [2021-06-12 17:16:43,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4147 states, 4146 states have (on average 3.277134587554269) internal successors, (13587), 4146 states have internal predecessors, (13587), 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) [2021-06-12 17:16:43,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4147 states to 4147 states and 13587 transitions. [2021-06-12 17:16:43,320 INFO L78 Accepts]: Start accepts. Automaton has 4147 states and 13587 transitions. Word has length 52 [2021-06-12 17:16:43,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:16:43,320 INFO L482 AbstractCegarLoop]: Abstraction has 4147 states and 13587 transitions. [2021-06-12 17:16:43,321 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-06-12 17:16:43,321 INFO L276 IsEmpty]: Start isEmpty. Operand 4147 states and 13587 transitions. [2021-06-12 17:16:43,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-12 17:16:43,327 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:16:43,328 INFO L472 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] [2021-06-12 17:16:43,328 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 17:16:43,328 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:16:43,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:16:43,328 INFO L82 PathProgramCache]: Analyzing trace with hash -509769829, now seen corresponding path program 1 times [2021-06-12 17:16:43,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:16:43,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122012800] [2021-06-12 17:16:43,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:16:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:16:43,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:16:43,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:16:43,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122012800] [2021-06-12 17:16:43,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122012800] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:16:43,410 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:16:43,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:16:43,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692625297] [2021-06-12 17:16:43,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:16:43,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:16:43,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:16:43,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:16:43,411 INFO L87 Difference]: Start difference. First operand 4147 states and 13587 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-12 17:16:43,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:16:43,537 INFO L93 Difference]: Finished difference Result 5729 states and 18651 transitions. [2021-06-12 17:16:43,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:16:43,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-06-12 17:16:43,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:16:43,545 INFO L225 Difference]: With dead ends: 5729 [2021-06-12 17:16:43,545 INFO L226 Difference]: Without dead ends: 3109 [2021-06-12 17:16:43,546 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 114.1ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-12 17:16:43,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2021-06-12 17:16:43,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3109. [2021-06-12 17:16:43,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3108 states have (on average 3.144144144144144) internal successors, (9772), 3108 states have internal predecessors, (9772), 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) [2021-06-12 17:16:43,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 9772 transitions. [2021-06-12 17:16:43,602 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 9772 transitions. Word has length 53 [2021-06-12 17:16:43,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:16:43,602 INFO L482 AbstractCegarLoop]: Abstraction has 3109 states and 9772 transitions. [2021-06-12 17:16:43,602 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-12 17:16:43,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 9772 transitions. [2021-06-12 17:16:43,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-12 17:16:43,608 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:16:43,608 INFO L472 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] [2021-06-12 17:16:43,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 17:16:43,608 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:16:43,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:16:43,609 INFO L82 PathProgramCache]: Analyzing trace with hash 446997333, now seen corresponding path program 1 times [2021-06-12 17:16:43,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:16:43,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465261599] [2021-06-12 17:16:43,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:16:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:16:43,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:16:43,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:16:43,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465261599] [2021-06-12 17:16:43,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465261599] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:16:43,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:16:43,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:16:43,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653864664] [2021-06-12 17:16:43,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:16:43,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:16:43,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:16:43,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:16:43,698 INFO L87 Difference]: Start difference. First operand 3109 states and 9772 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) [2021-06-12 17:16:43,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:16:43,799 INFO L93 Difference]: Finished difference Result 3749 states and 11692 transitions. [2021-06-12 17:16:43,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:16:43,800 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 [2021-06-12 17:16:43,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:16:43,805 INFO L225 Difference]: With dead ends: 3749 [2021-06-12 17:16:43,805 INFO L226 Difference]: Without dead ends: 2597 [2021-06-12 17:16:43,806 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 86.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:16:43,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2021-06-12 17:16:43,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2405. [2021-06-12 17:16:43,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2404 states have (on average 3.026622296173045) internal successors, (7276), 2404 states have internal predecessors, (7276), 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) [2021-06-12 17:16:43,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 7276 transitions. [2021-06-12 17:16:43,843 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 7276 transitions. Word has length 54 [2021-06-12 17:16:43,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:16:43,844 INFO L482 AbstractCegarLoop]: Abstraction has 2405 states and 7276 transitions. [2021-06-12 17:16:43,844 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) [2021-06-12 17:16:43,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 7276 transitions. [2021-06-12 17:16:43,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-12 17:16:43,847 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:16:43,847 INFO L472 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] [2021-06-12 17:16:43,847 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 17:16:43,847 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:16:43,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:16:43,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1128658508, now seen corresponding path program 1 times [2021-06-12 17:16:43,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:16:43,848 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311150103] [2021-06-12 17:16:43,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:16:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:16:43,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:16:43,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:16:43,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311150103] [2021-06-12 17:16:43,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311150103] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:16:43,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:16:43,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:16:43,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131795667] [2021-06-12 17:16:43,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:16:43,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:16:43,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:16:43,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:16:43,902 INFO L87 Difference]: Start difference. First operand 2405 states and 7276 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) [2021-06-12 17:16:43,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:16:43,990 INFO L93 Difference]: Finished difference Result 2882 states and 8614 transitions. [2021-06-12 17:16:43,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:16:43,990 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 [2021-06-12 17:16:43,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:16:43,994 INFO L225 Difference]: With dead ends: 2882 [2021-06-12 17:16:43,995 INFO L226 Difference]: Without dead ends: 2186 [2021-06-12 17:16:43,995 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 69.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:16:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2186 states. [2021-06-12 17:16:44,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2186 to 2186. [2021-06-12 17:16:44,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 2185 states have (on average 2.9752860411899316) internal successors, (6501), 2185 states have internal predecessors, (6501), 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) [2021-06-12 17:16:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 6501 transitions. [2021-06-12 17:16:44,059 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 6501 transitions. Word has length 55 [2021-06-12 17:16:44,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:16:44,059 INFO L482 AbstractCegarLoop]: Abstraction has 2186 states and 6501 transitions. [2021-06-12 17:16:44,059 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) [2021-06-12 17:16:44,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 6501 transitions. [2021-06-12 17:16:44,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-12 17:16:44,062 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:16:44,062 INFO L472 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] [2021-06-12 17:16:44,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 17:16:44,062 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:16:44,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:16:44,062 INFO L82 PathProgramCache]: Analyzing trace with hash 107476753, now seen corresponding path program 1 times [2021-06-12 17:16:44,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:16:44,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645925746] [2021-06-12 17:16:44,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:16:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:16:44,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:16:44,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:16:44,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645925746] [2021-06-12 17:16:44,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645925746] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:16:44,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:16:44,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:16:44,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248973606] [2021-06-12 17:16:44,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:16:44,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:16:44,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:16:44,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:16:44,120 INFO L87 Difference]: Start difference. First operand 2186 states and 6501 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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) [2021-06-12 17:16:44,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:16:44,214 INFO L93 Difference]: Finished difference Result 2123 states and 6141 transitions. [2021-06-12 17:16:44,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:16:44,214 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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 [2021-06-12 17:16:44,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:16:44,217 INFO L225 Difference]: With dead ends: 2123 [2021-06-12 17:16:44,217 INFO L226 Difference]: Without dead ends: 1506 [2021-06-12 17:16:44,217 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 71.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-12 17:16:44,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2021-06-12 17:16:44,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506. [2021-06-12 17:16:44,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 2.823920265780731) internal successors, (4250), 1505 states have internal predecessors, (4250), 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) [2021-06-12 17:16:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 4250 transitions. [2021-06-12 17:16:44,238 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 4250 transitions. Word has length 56 [2021-06-12 17:16:44,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:16:44,238 INFO L482 AbstractCegarLoop]: Abstraction has 1506 states and 4250 transitions. [2021-06-12 17:16:44,238 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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) [2021-06-12 17:16:44,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 4250 transitions. [2021-06-12 17:16:44,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-12 17:16:44,240 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:16:44,240 INFO L472 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] [2021-06-12 17:16:44,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 17:16:44,241 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:16:44,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:16:44,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1254971864, now seen corresponding path program 1 times [2021-06-12 17:16:44,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:16:44,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602640909] [2021-06-12 17:16:44,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:16:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:16:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:16:44,295 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:16:44,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602640909] [2021-06-12 17:16:44,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602640909] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:16:44,295 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:16:44,295 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:16:44,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732228523] [2021-06-12 17:16:44,296 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:16:44,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:16:44,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:16:44,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:16:44,296 INFO L87 Difference]: Start difference. First operand 1506 states and 4250 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) [2021-06-12 17:16:44,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:16:44,354 INFO L93 Difference]: Finished difference Result 1074 states and 2927 transitions. [2021-06-12 17:16:44,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-12 17:16:44,354 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 [2021-06-12 17:16:44,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:16:44,354 INFO L225 Difference]: With dead ends: 1074 [2021-06-12 17:16:44,354 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 17:16:44,355 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 62.8ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-12 17:16:44,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 17:16:44,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 17:16:44,355 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) [2021-06-12 17:16:44,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 17:16:44,355 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-06-12 17:16:44,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:16:44,355 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 17:16:44,355 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) [2021-06-12 17:16:44,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 17:16:44,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 17:16:44,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 17:16:44,357 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 17:16:44,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 05:16:44 BasicIcfg [2021-06-12 17:16:44,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 17:16:44,359 INFO L168 Benchmark]: Toolchain (without parser) took 4414.31 ms. Allocated memory was 255.9 MB in the beginning and 501.2 MB in the end (delta: 245.4 MB). Free memory was 219.4 MB in the beginning and 322.2 MB in the end (delta: -102.8 MB). Peak memory consumption was 142.6 MB. Max. memory is 8.0 GB. [2021-06-12 17:16:44,359 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 17:16:44,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.34 ms. Allocated memory is still 255.9 MB. Free memory was 219.1 MB in the beginning and 218.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. [2021-06-12 17:16:44,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.65 ms. Allocated memory is still 255.9 MB. Free memory was 218.1 MB in the beginning and 216.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:16:44,360 INFO L168 Benchmark]: Boogie Preprocessor took 14.10 ms. Allocated memory is still 255.9 MB. Free memory was 216.1 MB in the beginning and 214.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 17:16:44,360 INFO L168 Benchmark]: RCFGBuilder took 349.29 ms. Allocated memory was 255.9 MB in the beginning and 311.4 MB in the end (delta: 55.6 MB). Free memory was 214.6 MB in the beginning and 287.3 MB in the end (delta: -72.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. [2021-06-12 17:16:44,361 INFO L168 Benchmark]: TraceAbstraction took 3653.67 ms. Allocated memory was 311.4 MB in the beginning and 501.2 MB in the end (delta: 189.8 MB). Free memory was 286.8 MB in the beginning and 322.7 MB in the end (delta: -36.0 MB). Peak memory consumption was 154.4 MB. Max. memory is 8.0 GB. [2021-06-12 17:16:44,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 367.34 ms. Allocated memory is still 255.9 MB. Free memory was 219.1 MB in the beginning and 218.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.65 ms. Allocated memory is still 255.9 MB. Free memory was 218.1 MB in the beginning and 216.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.10 ms. Allocated memory is still 255.9 MB. Free memory was 216.1 MB in the beginning and 214.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 349.29 ms. Allocated memory was 255.9 MB in the beginning and 311.4 MB in the end (delta: 55.6 MB). Free memory was 214.6 MB in the beginning and 287.3 MB in the end (delta: -72.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3653.67 ms. Allocated memory was 311.4 MB in the beginning and 501.2 MB in the end (delta: 189.8 MB). Free memory was 286.8 MB in the beginning and 322.7 MB in the end (delta: -36.0 MB). Peak memory consumption was 154.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3583.7ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 174.1ms, AutomataDifference: 1239.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 403.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 952 SDtfs, 1314 SDslu, 2877 SDs, 0 SdLazy, 275 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 177.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 744.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9331occurred in iteration=0, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 729.7ms AutomataMinimizationTime, 9 MinimizatonAttempts, 1032 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.5ms SsaConstructionTime, 195.4ms SatisfiabilityAnalysisTime, 663.4ms InterpolantComputationTime, 477 NumberOfCodeBlocks, 477 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 468 ConstructedInterpolants, 0 QuantifiedInterpolants, 1364 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...