/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:57:42,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:57:42,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:57:42,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:57:42,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:57:42,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:57:42,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:57:42,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:57:42,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:57:42,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:57:42,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:57:42,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:57:42,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:57:42,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:57:42,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:57:42,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:57:42,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:57:42,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:57:42,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:57:42,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:57:42,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:57:42,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:57:42,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:57:42,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:57:42,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 23:57:42,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:57:42,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:57:42,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:57:42,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:57:42,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:57:42,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:57:42,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:57:42,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:57:42,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:57:42,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:57:42,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:57:42,557 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-keepdead.epf [2020-12-17 23:57:42,607 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:57:42,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:57:42,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:57:42,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:57:42,612 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:57:42,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:57:42,613 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:57:42,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:57:42,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:57:42,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:57:42,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:57:42,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:57:42,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:57:42,615 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:57:42,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:57:42,616 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:57:42,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:57:42,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:57:42,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:57:42,617 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:57:42,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:57:42,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:57:42,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:57:42,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:57:42,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:57:42,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:57:42,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:57:42,619 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:57:42,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:57:42,620 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:57:42,620 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:57:42,620 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:57:42,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:57:43,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:57:43,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:57:43,029 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:57:43,030 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:57:43,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-12-17 23:57:43,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0066aea39/0362134d70d948a08f0eb449d15e1e16/FLAGe02ae4640 [2020-12-17 23:57:43,828 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:57:43,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-12-17 23:57:43,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0066aea39/0362134d70d948a08f0eb449d15e1e16/FLAGe02ae4640 [2020-12-17 23:57:44,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0066aea39/0362134d70d948a08f0eb449d15e1e16 [2020-12-17 23:57:44,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:57:44,126 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:57:44,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:57:44,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:57:44,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:57:44,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:57:44" (1/1) ... [2020-12-17 23:57:44,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c137e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44, skipping insertion in model container [2020-12-17 23:57:44,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:57:44" (1/1) ... [2020-12-17 23:57:44,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:57:44,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:57:44,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:57:44,676 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:57:44,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:57:44,912 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:57:44,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44 WrapperNode [2020-12-17 23:57:44,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:57:44,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:57:44,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:57:44,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:57:44,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44" (1/1) ... [2020-12-17 23:57:44,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44" (1/1) ... [2020-12-17 23:57:44,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:57:44,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:57:44,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:57:44,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:57:44,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44" (1/1) ... [2020-12-17 23:57:44,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44" (1/1) ... [2020-12-17 23:57:44,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44" (1/1) ... [2020-12-17 23:57:44,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44" (1/1) ... [2020-12-17 23:57:45,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44" (1/1) ... [2020-12-17 23:57:45,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44" (1/1) ... [2020-12-17 23:57:45,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44" (1/1) ... [2020-12-17 23:57:45,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:57:45,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:57:45,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:57:45,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:57:45,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:57:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:57:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:57:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:57:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:57:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:57:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:57:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:57:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:57:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:57:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:57:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-17 23:57:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-17 23:57:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:57:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:57:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:57:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:57:45,104 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:57:45,670 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:57:45,671 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:57:45,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:57:45 BoogieIcfgContainer [2020-12-17 23:57:45,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:57:45,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:57:45,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:57:45,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:57:45,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:57:44" (1/3) ... [2020-12-17 23:57:45,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e17cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:57:45, skipping insertion in model container [2020-12-17 23:57:45,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:44" (2/3) ... [2020-12-17 23:57:45,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e17cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:57:45, skipping insertion in model container [2020-12-17 23:57:45,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:57:45" (3/3) ... [2020-12-17 23:57:45,684 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2020-12-17 23:57:45,700 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:57:45,701 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:57:45,705 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:57:45,706 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:57:45,745 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,746 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,746 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,746 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,746 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,746 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,747 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,747 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,753 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,753 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,753 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,754 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,754 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,755 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,755 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,755 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,759 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,761 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,762 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,762 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,762 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,762 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,763 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,763 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,763 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,763 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,764 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,764 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,764 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,764 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,764 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,764 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,765 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,765 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,769 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,769 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,770 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,770 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,775 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,775 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,775 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,775 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,779 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,780 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,782 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,782 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:45,784 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:57:45,800 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-17 23:57:45,835 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:57:45,835 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:57:45,836 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:57:45,836 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:57:45,836 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:57:45,836 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:57:45,836 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:57:45,836 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:57:45,857 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 91 transitions, 202 flow [2020-12-17 23:57:54,227 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 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) [2020-12-17 23:57:54,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 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) [2020-12-17 23:57:54,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:57:54,497 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:54,498 INFO L504 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] [2020-12-17 23:57:54,498 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:54,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:54,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1453792105, now seen corresponding path program 1 times [2020-12-17 23:57:54,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:54,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362912178] [2020-12-17 23:57:54,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:54,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:57:54,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362912178] [2020-12-17 23:57:54,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:54,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:57:54,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437204642] [2020-12-17 23:57:55,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:57:55,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:55,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:57:55,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:57:55,082 INFO L87 Difference]: Start difference. First operand has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 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 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2020-12-17 23:57:55,444 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-17 23:57:56,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:56,310 INFO L93 Difference]: Finished difference Result 68929 states and 296105 transitions. [2020-12-17 23:57:56,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:57:56,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2020-12-17 23:57:56,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:56,314 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:57:56,315 INFO L78 Accepts]: Start accepts. Automaton has 68929 states and 296105 transitions. Word has length 47 [2020-12-17 23:57:56,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:56,317 INFO L481 AbstractCegarLoop]: Abstraction has 68929 states and 296105 transitions. [2020-12-17 23:57:56,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2020-12-17 23:57:56,317 INFO L276 IsEmpty]: Start isEmpty. Operand 68929 states and 296105 transitions. [2020-12-17 23:57:56,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-17 23:57:56,702 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:56,702 INFO L504 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] [2020-12-17 23:57:56,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:57:56,703 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:56,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:56,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1767056824, now seen corresponding path program 1 times [2020-12-17 23:57:56,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:56,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254882787] [2020-12-17 23:57:56,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:57,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:57:57,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254882787] [2020-12-17 23:57:57,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:57,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:57:57,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100498138] [2020-12-17 23:57:57,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:57:57,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:57,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:57:57,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:57:57,077 INFO L87 Difference]: Start difference. First operand 68929 states and 296105 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2020-12-17 23:57:58,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:58,666 INFO L93 Difference]: Finished difference Result 102049 states and 436121 transitions. [2020-12-17 23:57:58,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:57:58,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2020-12-17 23:57:58,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:58,676 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:57:58,676 INFO L78 Accepts]: Start accepts. Automaton has 102049 states and 436121 transitions. Word has length 49 [2020-12-17 23:57:58,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:58,677 INFO L481 AbstractCegarLoop]: Abstraction has 102049 states and 436121 transitions. [2020-12-17 23:57:58,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2020-12-17 23:57:58,677 INFO L276 IsEmpty]: Start isEmpty. Operand 102049 states and 436121 transitions. [2020-12-17 23:57:58,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 23:57:58,816 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:58,817 INFO L504 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] [2020-12-17 23:57:58,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:57:58,817 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:58,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:58,818 INFO L82 PathProgramCache]: Analyzing trace with hash 698601657, now seen corresponding path program 1 times [2020-12-17 23:57:58,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:58,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364334705] [2020-12-17 23:57:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:59,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:57:59,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364334705] [2020-12-17 23:57:59,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:59,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:57:59,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717066998] [2020-12-17 23:57:59,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:57:59,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:59,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:57:59,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:57:59,060 INFO L87 Difference]: Start difference. First operand 102049 states and 436121 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:58:00,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:00,967 INFO L93 Difference]: Finished difference Result 154209 states and 652629 transitions. [2020-12-17 23:58:00,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:58:00,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-12-17 23:58:00,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:00,970 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:58:00,970 INFO L78 Accepts]: Start accepts. Automaton has 154209 states and 652629 transitions. Word has length 51 [2020-12-17 23:58:00,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:00,979 INFO L481 AbstractCegarLoop]: Abstraction has 154209 states and 652629 transitions. [2020-12-17 23:58:00,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:58:00,979 INFO L276 IsEmpty]: Start isEmpty. Operand 154209 states and 652629 transitions. [2020-12-17 23:58:01,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-17 23:58:01,114 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:01,115 INFO L504 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] [2020-12-17 23:58:01,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:58:01,115 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:01,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:01,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1362316858, now seen corresponding path program 1 times [2020-12-17 23:58:01,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:01,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027196157] [2020-12-17 23:58:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:01,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:58:01,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027196157] [2020-12-17 23:58:01,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:01,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:58:01,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999054598] [2020-12-17 23:58:01,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:58:01,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:01,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:58:01,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:58:01,583 INFO L87 Difference]: Start difference. First operand 154209 states and 652629 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) [2020-12-17 23:58:04,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:04,405 INFO L93 Difference]: Finished difference Result 235009 states and 985549 transitions. [2020-12-17 23:58:04,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:58:04,405 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 [2020-12-17 23:58:04,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:04,407 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:58:04,407 INFO L78 Accepts]: Start accepts. Automaton has 235009 states and 985549 transitions. Word has length 53 [2020-12-17 23:58:04,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:04,408 INFO L481 AbstractCegarLoop]: Abstraction has 235009 states and 985549 transitions. [2020-12-17 23:58:04,408 INFO L482 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) [2020-12-17 23:58:04,408 INFO L276 IsEmpty]: Start isEmpty. Operand 235009 states and 985549 transitions. [2020-12-17 23:58:04,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-17 23:58:04,682 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:04,682 INFO L504 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] [2020-12-17 23:58:04,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:58:04,682 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:04,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:04,683 INFO L82 PathProgramCache]: Analyzing trace with hash 426422777, now seen corresponding path program 1 times [2020-12-17 23:58:04,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:04,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742891567] [2020-12-17 23:58:04,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:04,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:58:04,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742891567] [2020-12-17 23:58:04,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:04,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:58:04,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668271206] [2020-12-17 23:58:04,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:58:04,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:04,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:58:04,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:58:04,981 INFO L87 Difference]: Start difference. First operand 235009 states and 985549 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) [2020-12-17 23:58:07,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:07,652 INFO L93 Difference]: Finished difference Result 214621 states and 887342 transitions. [2020-12-17 23:58:07,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:58:07,656 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 [2020-12-17 23:58:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:07,657 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:58:07,657 INFO L78 Accepts]: Start accepts. Automaton has 214621 states and 887342 transitions. Word has length 55 [2020-12-17 23:58:07,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:07,657 INFO L481 AbstractCegarLoop]: Abstraction has 214621 states and 887342 transitions. [2020-12-17 23:58:07,658 INFO L482 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) [2020-12-17 23:58:07,658 INFO L276 IsEmpty]: Start isEmpty. Operand 214621 states and 887342 transitions. [2020-12-17 23:58:08,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-17 23:58:08,050 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:08,050 INFO L504 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] [2020-12-17 23:58:08,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:58:08,050 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:08,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:08,051 INFO L82 PathProgramCache]: Analyzing trace with hash 809833087, now seen corresponding path program 1 times [2020-12-17 23:58:08,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:08,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131359232] [2020-12-17 23:58:08,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:08,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:58:08,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131359232] [2020-12-17 23:58:08,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:08,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:58:08,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376574206] [2020-12-17 23:58:08,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:58:08,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:08,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:58:08,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:58:08,264 INFO L87 Difference]: Start difference. First operand 214621 states and 887342 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) [2020-12-17 23:58:10,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:10,127 INFO L93 Difference]: Finished difference Result 157117 states and 634176 transitions. [2020-12-17 23:58:10,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:58:10,128 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 [2020-12-17 23:58:10,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:10,129 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-17 23:58:10,129 INFO L78 Accepts]: Start accepts. Automaton has 157117 states and 634176 transitions. Word has length 56 [2020-12-17 23:58:10,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:10,129 INFO L481 AbstractCegarLoop]: Abstraction has 157117 states and 634176 transitions. [2020-12-17 23:58:10,130 INFO L482 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) [2020-12-17 23:58:10,130 INFO L276 IsEmpty]: Start isEmpty. Operand 157117 states and 634176 transitions. [2020-12-17 23:58:10,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-17 23:58:10,293 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:10,293 INFO L504 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] [2020-12-17 23:58:10,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 23:58:10,293 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:10,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:10,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1848601464, now seen corresponding path program 1 times [2020-12-17 23:58:10,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:10,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154855274] [2020-12-17 23:58:10,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:11,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:58:11,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154855274] [2020-12-17 23:58:11,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:11,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-17 23:58:11,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723152042] [2020-12-17 23:58:11,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-17 23:58:11,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:11,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-17 23:58:11,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-17 23:58:11,227 INFO L87 Difference]: Start difference. First operand 157117 states and 634176 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:58:12,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:12,073 INFO L93 Difference]: Finished difference Result 101641 states and 403113 transitions. [2020-12-17 23:58:12,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-17 23:58:12,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2020-12-17 23:58:12,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:12,074 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:58:12,074 INFO L78 Accepts]: Start accepts. Automaton has 101641 states and 403113 transitions. Word has length 57 [2020-12-17 23:58:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:12,074 INFO L481 AbstractCegarLoop]: Abstraction has 101641 states and 403113 transitions. [2020-12-17 23:58:12,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:58:12,075 INFO L276 IsEmpty]: Start isEmpty. Operand 101641 states and 403113 transitions. [2020-12-17 23:58:12,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-17 23:58:12,204 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:12,204 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:58:12,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 23:58:12,204 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:12,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:12,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1336651321, now seen corresponding path program 1 times [2020-12-17 23:58:12,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:12,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292933631] [2020-12-17 23:58:12,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:58:13,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292933631] [2020-12-17 23:58:13,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:13,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-17 23:58:13,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349910586] [2020-12-17 23:58:13,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-17 23:58:13,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:13,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-17 23:58:13,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-17 23:58:13,096 INFO L87 Difference]: Start difference. First operand 101641 states and 403113 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:58:13,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:13,938 INFO L93 Difference]: Finished difference Result 75613 states and 300405 transitions. [2020-12-17 23:58:13,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-17 23:58:13,939 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2020-12-17 23:58:13,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:13,940 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2020-12-17 23:58:13,940 INFO L78 Accepts]: Start accepts. Automaton has 75613 states and 300405 transitions. Word has length 59 [2020-12-17 23:58:13,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:13,940 INFO L481 AbstractCegarLoop]: Abstraction has 75613 states and 300405 transitions. [2020-12-17 23:58:13,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:58:13,940 INFO L276 IsEmpty]: Start isEmpty. Operand 75613 states and 300405 transitions. [2020-12-17 23:58:14,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-17 23:58:14,064 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:14,064 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:58:14,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-17 23:58:14,064 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:14,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:14,065 INFO L82 PathProgramCache]: Analyzing trace with hash -106927622, now seen corresponding path program 1 times [2020-12-17 23:58:14,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:14,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956790993] [2020-12-17 23:58:14,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:14,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:58:14,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956790993] [2020-12-17 23:58:14,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:14,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:58:14,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639779730] [2020-12-17 23:58:14,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:58:14,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:14,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:58:14,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:58:14,187 INFO L87 Difference]: Start difference. First operand 75613 states and 300405 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:58:15,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:15,786 INFO L93 Difference]: Finished difference Result 120353 states and 472361 transitions. [2020-12-17 23:58:15,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 23:58:15,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2020-12-17 23:58:15,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:15,788 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:58:15,788 INFO L78 Accepts]: Start accepts. Automaton has 120353 states and 472361 transitions. Word has length 61 [2020-12-17 23:58:15,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:15,789 INFO L481 AbstractCegarLoop]: Abstraction has 120353 states and 472361 transitions. [2020-12-17 23:58:15,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:58:15,789 INFO L276 IsEmpty]: Start isEmpty. Operand 120353 states and 472361 transitions. [2020-12-17 23:58:16,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-17 23:58:16,026 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:16,026 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:58:16,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-17 23:58:16,027 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:16,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:16,027 INFO L82 PathProgramCache]: Analyzing trace with hash 903632240, now seen corresponding path program 2 times [2020-12-17 23:58:16,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:16,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186841862] [2020-12-17 23:58:16,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:16,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:58:16,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186841862] [2020-12-17 23:58:16,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:16,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:58:16,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764459624] [2020-12-17 23:58:16,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:58:16,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:16,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:58:16,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:58:16,164 INFO L87 Difference]: Start difference. First operand 120353 states and 472361 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:58:18,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:18,028 INFO L93 Difference]: Finished difference Result 184964 states and 719108 transitions. [2020-12-17 23:58:18,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 23:58:18,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2020-12-17 23:58:18,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:18,029 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:58:18,030 INFO L78 Accepts]: Start accepts. Automaton has 184964 states and 719108 transitions. Word has length 61 [2020-12-17 23:58:18,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:18,030 INFO L481 AbstractCegarLoop]: Abstraction has 184964 states and 719108 transitions. [2020-12-17 23:58:18,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:58:18,030 INFO L276 IsEmpty]: Start isEmpty. Operand 184964 states and 719108 transitions. [2020-12-17 23:58:19,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:58:19,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-17 23:58:19,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:58:19 BasicIcfg [2020-12-17 23:58:19,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:58:19,350 INFO L168 Benchmark]: Toolchain (without parser) took 35223.32 ms. Allocated memory was 302.0 MB in the beginning and 13.6 GB in the end (delta: 13.3 GB). Free memory was 277.2 MB in the beginning and 10.0 GB in the end (delta: -9.8 GB). Peak memory consumption was 4.0 GB. Max. memory is 16.0 GB. [2020-12-17 23:58:19,353 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 272.6 MB in the end (delta: 64.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:58:19,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.03 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 282.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:58:19,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.30 ms. Allocated memory is still 302.0 MB. Free memory was 281.3 MB in the beginning and 279.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:58:19,358 INFO L168 Benchmark]: Boogie Preprocessor took 27.75 ms. Allocated memory is still 302.0 MB. Free memory was 279.2 MB in the beginning and 278.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:58:19,358 INFO L168 Benchmark]: RCFGBuilder took 659.94 ms. Allocated memory is still 302.0 MB. Free memory was 278.2 MB in the beginning and 253.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-12-17 23:58:19,359 INFO L168 Benchmark]: TraceAbstraction took 33671.26 ms. Allocated memory was 302.0 MB in the beginning and 13.6 GB in the end (delta: 13.3 GB). Free memory was 253.0 MB in the beginning and 10.0 GB in the end (delta: -9.8 GB). Peak memory consumption was 4.0 GB. Max. memory is 16.0 GB. [2020-12-17 23:58:19,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 272.6 MB in the end (delta: 64.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 787.03 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 282.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 69.30 ms. Allocated memory is still 302.0 MB. Free memory was 281.3 MB in the beginning and 279.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.75 ms. Allocated memory is still 302.0 MB. Free memory was 279.2 MB in the beginning and 278.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 659.94 ms. Allocated memory is still 302.0 MB. Free memory was 278.2 MB in the beginning and 253.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 33671.26 ms. Allocated memory was 302.0 MB in the beginning and 13.6 GB in the end (delta: 13.3 GB). Free memory was 253.0 MB in the beginning and 10.0 GB in the end (delta: -9.8 GB). Peak memory consumption was 4.0 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 33.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 17.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.3s, HoareTripleCheckerStatistics: 1316 SDtfs, 2979 SDslu, 4875 SDs, 0 SdLazy, 550 SolverSat, 183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235009occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 549 NumberOfCodeBlocks, 549 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 539 ConstructedInterpolants, 0 QuantifiedInterpolants, 83325 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...