/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:29:12,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:29:12,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:29:12,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:29:12,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:29:12,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:29:12,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:29:12,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:29:12,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:29:12,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:29:12,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:29:12,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:29:12,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:29:12,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:29:12,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:29:12,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:29:12,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:29:12,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:29:12,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:29:12,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:29:12,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:29:12,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:29:12,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:29:12,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:29:12,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:29:12,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 17:29:12,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 17:29:12,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 17:29:12,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 17:29:12,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 17:29:12,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 17:29:12,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 17:29:12,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 17:29:12,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:29:12,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:29:12,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:29:12,762 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 [2021-01-26 17:29:12,797 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:29:12,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:29:12,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:29:12,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:29:12,801 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:29:12,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:29:12,801 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:29:12,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:29:12,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:29:12,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:29:12,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:29:12,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:29:12,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:29:12,806 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:29:12,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:29:12,807 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:29:12,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:29:12,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:29:12,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:29:12,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:29:12,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:29:12,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:29:12,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:29:12,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:29:12,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:29:12,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:29:12,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:29:12,810 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:29:12,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:29:12,811 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:29:12,811 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:29:13,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:29:13,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:29:13,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:29:13,301 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:29:13,301 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:29:13,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2021-01-26 17:29:13,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e6840107/4ec0e9cea2dd488ea08584cfd8c0bdaf/FLAGae2bad550 [2021-01-26 17:29:14,099 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:29:14,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2021-01-26 17:29:14,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e6840107/4ec0e9cea2dd488ea08584cfd8c0bdaf/FLAGae2bad550 [2021-01-26 17:29:14,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e6840107/4ec0e9cea2dd488ea08584cfd8c0bdaf [2021-01-26 17:29:14,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:29:14,352 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:29:14,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:29:14,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:29:14,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:29:14,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:29:14" (1/1) ... [2021-01-26 17:29:14,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8c7a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:14, skipping insertion in model container [2021-01-26 17:29:14,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:29:14" (1/1) ... [2021-01-26 17:29:14,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:29:14,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:29:14,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:29:14,893 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:29:14,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:29:15,054 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:29:15,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:15 WrapperNode [2021-01-26 17:29:15,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:29:15,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:29:15,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:29:15,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:29:15,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:15" (1/1) ... [2021-01-26 17:29:15,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:15" (1/1) ... [2021-01-26 17:29:15,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:29:15,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:29:15,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:29:15,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:29:15,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:15" (1/1) ... [2021-01-26 17:29:15,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:15" (1/1) ... [2021-01-26 17:29:15,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:15" (1/1) ... [2021-01-26 17:29:15,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:15" (1/1) ... [2021-01-26 17:29:15,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:15" (1/1) ... [2021-01-26 17:29:15,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:15" (1/1) ... [2021-01-26 17:29:15,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:15" (1/1) ... [2021-01-26 17:29:15,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:29:15,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:29:15,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:29:15,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:29:15,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:15" (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 [2021-01-26 17:29:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:29:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:29:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:29:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:29:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:29:15,323 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:29:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:29:15,324 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:29:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:29:15,325 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:29:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:29:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:29:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:29:15,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:29:15,328 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:29:15,706 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:29:15,706 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:29:15,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:29:15 BoogieIcfgContainer [2021-01-26 17:29:15,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:29:15,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:29:15,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:29:15,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:29:15,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:29:14" (1/3) ... [2021-01-26 17:29:15,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411cea4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:29:15, skipping insertion in model container [2021-01-26 17:29:15,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:15" (2/3) ... [2021-01-26 17:29:15,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411cea4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:29:15, skipping insertion in model container [2021-01-26 17:29:15,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:29:15" (3/3) ... [2021-01-26 17:29:15,718 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_tso.oepc.i [2021-01-26 17:29:15,734 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:29:15,734 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:29:15,739 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:29:15,740 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:29:15,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,773 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,774 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,774 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,775 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,777 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,777 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,778 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,778 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,781 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,781 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,781 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,781 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,785 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,785 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,786 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,786 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,792 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,793 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,796 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,796 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,796 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,797 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:15,799 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:29:15,813 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-26 17:29:15,835 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:29:15,836 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:29:15,836 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:29:15,836 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:29:15,836 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:29:15,836 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:29:15,838 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:29:15,838 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:29:15,854 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 76 transitions, 167 flow [2021-01-26 17:29:16,580 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8446 states, 8444 states have (on average 3.5900047370914256) internal successors, (30314), 8445 states have internal predecessors, (30314), 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) [2021-01-26 17:29:16,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 8446 states, 8444 states have (on average 3.5900047370914256) internal successors, (30314), 8445 states have internal predecessors, (30314), 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) [2021-01-26 17:29:16,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-01-26 17:29:16,688 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:16,689 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] [2021-01-26 17:29:16,690 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:16,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:16,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1568087296, now seen corresponding path program 1 times [2021-01-26 17:29:16,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:16,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840958468] [2021-01-26 17:29:16,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:17,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:17,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840958468] [2021-01-26 17:29:17,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:17,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:29:17,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039268571] [2021-01-26 17:29:17,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:29:17,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:17,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:29:17,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:29:17,272 INFO L87 Difference]: Start difference. First operand has 8446 states, 8444 states have (on average 3.5900047370914256) internal successors, (30314), 8445 states have internal predecessors, (30314), 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 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-01-26 17:29:17,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:17,821 INFO L93 Difference]: Finished difference Result 11326 states and 39206 transitions. [2021-01-26 17:29:17,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:29:17,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2021-01-26 17:29:17,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:17,913 INFO L225 Difference]: With dead ends: 11326 [2021-01-26 17:29:17,914 INFO L226 Difference]: Without dead ends: 4336 [2021-01-26 17:29:17,917 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:29:17,918 INFO L78 Accepts]: Start accepts. Automaton has 4336 states. Word has length 40 [2021-01-26 17:29:17,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:17,920 INFO L481 AbstractCegarLoop]: Abstraction has 4336 states. [2021-01-26 17:29:17,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-01-26 17:29:17,921 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states. [2021-01-26 17:29:17,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-26 17:29:17,944 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:17,945 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] [2021-01-26 17:29:17,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:29:17,948 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:17,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:17,956 INFO L82 PathProgramCache]: Analyzing trace with hash -291447777, now seen corresponding path program 1 times [2021-01-26 17:29:17,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:17,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831790018] [2021-01-26 17:29:17,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:18,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831790018] [2021-01-26 17:29:18,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:18,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:29:18,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370111105] [2021-01-26 17:29:18,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:29:18,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:18,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:29:18,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:29:18,188 INFO L87 Difference]: Start difference. First operand 4336 states. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-26 17:29:18,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:18,395 INFO L93 Difference]: Finished difference Result 4696 states and 15807 transitions. [2021-01-26 17:29:18,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:29:18,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-01-26 17:29:18,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:18,432 INFO L225 Difference]: With dead ends: 4696 [2021-01-26 17:29:18,432 INFO L226 Difference]: Without dead ends: 3856 [2021-01-26 17:29:18,433 INFO L769 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 [2021-01-26 17:29:18,433 INFO L78 Accepts]: Start accepts. Automaton has 3856 states. Word has length 42 [2021-01-26 17:29:18,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:18,434 INFO L481 AbstractCegarLoop]: Abstraction has 3856 states. [2021-01-26 17:29:18,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-26 17:29:18,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states. [2021-01-26 17:29:18,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-26 17:29:18,445 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:18,445 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] [2021-01-26 17:29:18,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:29:18,446 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:18,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:18,446 INFO L82 PathProgramCache]: Analyzing trace with hash 209891192, now seen corresponding path program 1 times [2021-01-26 17:29:18,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:18,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188970666] [2021-01-26 17:29:18,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:18,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:18,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188970666] [2021-01-26 17:29:18,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:18,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:29:18,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926254107] [2021-01-26 17:29:18,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:29:18,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:18,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:29:18,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:29:18,610 INFO L87 Difference]: Start difference. First operand 3856 states. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-01-26 17:29:19,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:19,075 INFO L93 Difference]: Finished difference Result 5700 states and 19142 transitions. [2021-01-26 17:29:19,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:29:19,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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 43 [2021-01-26 17:29:19,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:19,106 INFO L225 Difference]: With dead ends: 5700 [2021-01-26 17:29:19,107 INFO L226 Difference]: Without dead ends: 3438 [2021-01-26 17:29:19,107 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:29:19,107 INFO L78 Accepts]: Start accepts. Automaton has 3438 states. Word has length 43 [2021-01-26 17:29:19,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:19,108 INFO L481 AbstractCegarLoop]: Abstraction has 3438 states. [2021-01-26 17:29:19,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-01-26 17:29:19,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3438 states. [2021-01-26 17:29:19,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-26 17:29:19,119 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:19,119 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] [2021-01-26 17:29:19,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:29:19,120 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:19,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:19,121 INFO L82 PathProgramCache]: Analyzing trace with hash -654532284, now seen corresponding path program 1 times [2021-01-26 17:29:19,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:19,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497383591] [2021-01-26 17:29:19,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:19,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497383591] [2021-01-26 17:29:19,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:19,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:29:19,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658007474] [2021-01-26 17:29:19,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:29:19,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:19,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:29:19,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:29:19,242 INFO L87 Difference]: Start difference. First operand 3438 states. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-26 17:29:19,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:19,442 INFO L93 Difference]: Finished difference Result 5406 states and 17607 transitions. [2021-01-26 17:29:19,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:29:19,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2021-01-26 17:29:19,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:19,476 INFO L225 Difference]: With dead ends: 5406 [2021-01-26 17:29:19,476 INFO L226 Difference]: Without dead ends: 3758 [2021-01-26 17:29:19,477 INFO L769 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 [2021-01-26 17:29:19,477 INFO L78 Accepts]: Start accepts. Automaton has 3758 states. Word has length 45 [2021-01-26 17:29:19,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:19,478 INFO L481 AbstractCegarLoop]: Abstraction has 3758 states. [2021-01-26 17:29:19,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-26 17:29:19,478 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states. [2021-01-26 17:29:19,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-26 17:29:19,489 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:19,489 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] [2021-01-26 17:29:19,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:29:19,490 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:19,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:19,490 INFO L82 PathProgramCache]: Analyzing trace with hash 725194327, now seen corresponding path program 1 times [2021-01-26 17:29:19,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:19,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862498241] [2021-01-26 17:29:19,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:19,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862498241] [2021-01-26 17:29:19,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:19,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:29:19,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251438164] [2021-01-26 17:29:19,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:29:19,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:19,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:29:19,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:29:19,687 INFO L87 Difference]: Start difference. First operand 3758 states. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-26 17:29:19,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:19,867 INFO L93 Difference]: Finished difference Result 5278 states and 16699 transitions. [2021-01-26 17:29:19,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:29:19,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2021-01-26 17:29:19,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:19,885 INFO L225 Difference]: With dead ends: 5278 [2021-01-26 17:29:19,885 INFO L226 Difference]: Without dead ends: 3470 [2021-01-26 17:29:19,886 INFO L769 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 [2021-01-26 17:29:19,886 INFO L78 Accepts]: Start accepts. Automaton has 3470 states. Word has length 45 [2021-01-26 17:29:19,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:19,886 INFO L481 AbstractCegarLoop]: Abstraction has 3470 states. [2021-01-26 17:29:19,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-26 17:29:19,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states. [2021-01-26 17:29:19,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-26 17:29:19,896 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:19,897 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] [2021-01-26 17:29:19,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:29:19,897 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:19,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:19,898 INFO L82 PathProgramCache]: Analyzing trace with hash -643023679, now seen corresponding path program 1 times [2021-01-26 17:29:19,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:19,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209145503] [2021-01-26 17:29:19,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:20,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:20,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209145503] [2021-01-26 17:29:20,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:20,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:29:20,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461647222] [2021-01-26 17:29:20,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:29:20,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:20,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:29:20,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:29:20,028 INFO L87 Difference]: Start difference. First operand 3470 states. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-01-26 17:29:20,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:20,264 INFO L93 Difference]: Finished difference Result 3697 states and 11318 transitions. [2021-01-26 17:29:20,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:29:20,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-01-26 17:29:20,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:20,280 INFO L225 Difference]: With dead ends: 3697 [2021-01-26 17:29:20,281 INFO L226 Difference]: Without dead ends: 3025 [2021-01-26 17:29:20,281 INFO L769 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 [2021-01-26 17:29:20,281 INFO L78 Accepts]: Start accepts. Automaton has 3025 states. Word has length 46 [2021-01-26 17:29:20,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:20,282 INFO L481 AbstractCegarLoop]: Abstraction has 3025 states. [2021-01-26 17:29:20,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-01-26 17:29:20,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states. [2021-01-26 17:29:20,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-26 17:29:20,291 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:20,292 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] [2021-01-26 17:29:20,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-26 17:29:20,292 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:20,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:20,293 INFO L82 PathProgramCache]: Analyzing trace with hash -2047216989, now seen corresponding path program 1 times [2021-01-26 17:29:20,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:20,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195578733] [2021-01-26 17:29:20,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:20,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:20,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195578733] [2021-01-26 17:29:20,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:20,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:29:20,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426856466] [2021-01-26 17:29:20,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:29:20,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:20,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:29:20,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:29:20,429 INFO L87 Difference]: Start difference. First operand 3025 states. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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) [2021-01-26 17:29:20,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:20,650 INFO L93 Difference]: Finished difference Result 2080 states and 6088 transitions. [2021-01-26 17:29:20,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:29:20,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 [2021-01-26 17:29:20,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:20,659 INFO L225 Difference]: With dead ends: 2080 [2021-01-26 17:29:20,659 INFO L226 Difference]: Without dead ends: 1500 [2021-01-26 17:29:20,659 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-26 17:29:20,660 INFO L78 Accepts]: Start accepts. Automaton has 1500 states. Word has length 47 [2021-01-26 17:29:20,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:20,660 INFO L481 AbstractCegarLoop]: Abstraction has 1500 states. [2021-01-26 17:29:20,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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) [2021-01-26 17:29:20,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states. [2021-01-26 17:29:20,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-26 17:29:20,666 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:20,666 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] [2021-01-26 17:29:20,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-26 17:29:20,667 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:20,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:20,667 INFO L82 PathProgramCache]: Analyzing trace with hash -306973980, now seen corresponding path program 1 times [2021-01-26 17:29:20,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:20,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612372137] [2021-01-26 17:29:20,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:20,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:20,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612372137] [2021-01-26 17:29:20,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:20,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-26 17:29:20,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787898637] [2021-01-26 17:29:20,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-26 17:29:20,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:20,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-26 17:29:20,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-26 17:29:20,808 INFO L87 Difference]: Start difference. First operand 1500 states. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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) [2021-01-26 17:29:20,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:20,941 INFO L93 Difference]: Finished difference Result 726 states and 1958 transitions. [2021-01-26 17:29:20,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-26 17:29:20,941 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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 [2021-01-26 17:29:20,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:20,942 INFO L225 Difference]: With dead ends: 726 [2021-01-26 17:29:20,942 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:29:20,942 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-01-26 17:29:20,943 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 49 [2021-01-26 17:29:20,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:20,943 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:29:20,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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) [2021-01-26 17:29:20,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:29:20,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:29:20,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-26 17:29:20,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:29:20 BasicIcfg [2021-01-26 17:29:20,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:29:20,952 INFO L168 Benchmark]: Toolchain (without parser) took 6607.43 ms. Allocated memory was 302.0 MB in the beginning and 660.6 MB in the end (delta: 358.6 MB). Free memory was 277.2 MB in the beginning and 473.4 MB in the end (delta: -196.2 MB). Peak memory consumption was 165.0 MB. Max. memory is 16.0 GB. [2021-01-26 17:29:20,953 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:29:20,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.48 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 245.6 MB in the end (delta: 30.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-01-26 17:29:20,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.85 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 243.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:29:20,955 INFO L168 Benchmark]: Boogie Preprocessor took 98.04 ms. Allocated memory is still 302.0 MB. Free memory was 243.7 MB in the beginning and 284.9 MB in the end (delta: -41.2 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.0 GB. [2021-01-26 17:29:20,956 INFO L168 Benchmark]: RCFGBuilder took 493.71 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 262.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-26 17:29:20,957 INFO L168 Benchmark]: TraceAbstraction took 5238.93 ms. Allocated memory was 302.0 MB in the beginning and 660.6 MB in the end (delta: 358.6 MB). Free memory was 261.7 MB in the beginning and 473.4 MB in the end (delta: -211.6 MB). Peak memory consumption was 150.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:29:20,961 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 701.48 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 245.6 MB in the end (delta: 30.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.85 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 243.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 98.04 ms. Allocated memory is still 302.0 MB. Free memory was 243.7 MB in the beginning and 284.9 MB in the end (delta: -41.2 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.0 GB. * RCFGBuilder took 493.71 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 262.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5238.93 ms. Allocated memory was 302.0 MB in the beginning and 660.6 MB in the end (delta: 358.6 MB). Free memory was 261.7 MB in the beginning and 473.4 MB in the end (delta: -211.6 MB). Peak memory consumption was 150.1 MB. 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 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 768 SDtfs, 1038 SDslu, 2376 SDs, 0 SdLazy, 269 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8446occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 357 NumberOfCodeBlocks, 357 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 349 ConstructedInterpolants, 0 QuantifiedInterpolants, 40707 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...