/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/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:37:36,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:37:36,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:37:36,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:37:36,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:37:36,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:37:36,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:37:36,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:37:36,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:37:36,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:37:36,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:37:36,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:37:36,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:37:36,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:37:36,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:37:36,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:37:36,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:37:36,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:37:36,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:37:36,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:37:36,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:37:36,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:37:36,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:37:36,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:37:36,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:37:36,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 17:37:36,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 17:37:36,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 17:37:36,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 17:37:36,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 17:37:36,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 17:37:36,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 17:37:36,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 17:37:36,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:37:36,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:37:36,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:37:36,513 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 17:37:36,575 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:37:36,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:37:36,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:37:36,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:37:36,580 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:37:36,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:37:36,580 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:37:36,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:37:36,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:37:36,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:37:36,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:37:36,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:37:36,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:37:36,583 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:37:36,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:37:36,584 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:37:36,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:37:36,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:37:36,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:37:36,585 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:37:36,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:37:36,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:37:36,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:37:36,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:37:36,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:37:36,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:37:36,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:37:36,588 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:37:36,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:37:36,589 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:37:36,589 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:37:37,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:37:37,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:37:37,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:37:37,078 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:37:37,079 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:37:37,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2021-01-26 17:37:37,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d9d653a/e847581609aa4843a49878033896efbe/FLAGf96f35abf [2021-01-26 17:37:37,963 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:37:37,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2021-01-26 17:37:37,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d9d653a/e847581609aa4843a49878033896efbe/FLAGf96f35abf [2021-01-26 17:37:38,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d9d653a/e847581609aa4843a49878033896efbe [2021-01-26 17:37:38,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:37:38,189 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:37:38,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:37:38,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:37:38,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:37:38,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:37:38" (1/1) ... [2021-01-26 17:37:38,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572707ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:38, skipping insertion in model container [2021-01-26 17:37:38,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:37:38" (1/1) ... [2021-01-26 17:37:38,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:37:38,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:37:38,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:37:38,834 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:37:38,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:37:39,045 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:37:39,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:39 WrapperNode [2021-01-26 17:37:39,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:37:39,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:37:39,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:37:39,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:37:39,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:39" (1/1) ... [2021-01-26 17:37:39,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:39" (1/1) ... [2021-01-26 17:37:39,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:37:39,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:37:39,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:37:39,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:37:39,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:39" (1/1) ... [2021-01-26 17:37:39,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:39" (1/1) ... [2021-01-26 17:37:39,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:39" (1/1) ... [2021-01-26 17:37:39,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:39" (1/1) ... [2021-01-26 17:37:39,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:39" (1/1) ... [2021-01-26 17:37:39,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:39" (1/1) ... [2021-01-26 17:37:39,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:39" (1/1) ... [2021-01-26 17:37:39,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:37:39,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:37:39,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:37:39,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:37:39,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:37:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:37:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:37:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:37:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:37:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:37:39,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:37:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:37:39,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:37:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:37:39,306 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:37:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-26 17:37:39,306 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-26 17:37:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:37:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:37:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:37:39,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:37:39,309 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 17:37:39,877 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:37:39,877 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:37:39,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:37:39 BoogieIcfgContainer [2021-01-26 17:37:39,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:37:39,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:37:39,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:37:39,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:37:39,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:37:38" (1/3) ... [2021-01-26 17:37:39,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3917ceff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:37:39, skipping insertion in model container [2021-01-26 17:37:39,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:37:39" (2/3) ... [2021-01-26 17:37:39,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3917ceff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:37:39, skipping insertion in model container [2021-01-26 17:37:39,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:37:39" (3/3) ... [2021-01-26 17:37:39,889 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2021-01-26 17:37:39,906 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:37:39,906 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:37:39,910 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:37:39,911 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:37:39,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,953 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,953 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,953 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,956 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,956 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,956 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,956 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,957 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,957 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,959 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,959 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,959 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,959 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,960 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,960 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,960 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,960 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,962 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,962 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,962 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,962 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,963 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,963 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,963 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,963 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,964 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,964 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,964 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,964 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,967 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,967 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,967 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,975 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,976 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,979 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,979 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,979 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,980 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,984 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:37:39,986 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:37:40,000 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-26 17:37:40,024 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:37:40,025 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:37:40,025 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:37:40,025 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:37:40,025 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:37:40,025 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:37:40,025 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:37:40,026 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:37:40,039 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 95 transitions, 210 flow [2021-01-26 17:37:53,643 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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 17:37:53,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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 17:37:54,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-26 17:37:54,041 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:37:54,042 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 17:37:54,044 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:37:54,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:37:54,052 INFO L82 PathProgramCache]: Analyzing trace with hash 207288984, now seen corresponding path program 1 times [2021-01-26 17:37:54,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:37:54,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586675292] [2021-01-26 17:37:54,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:37:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:37:54,683 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 17:37:54,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586675292] [2021-01-26 17:37:54,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:37:54,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:37:54,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788780590] [2021-01-26 17:37:54,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:37:54,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:37:54,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:37:54,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:37:54,846 INFO L87 Difference]: Start difference. First operand has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.166666666666666) 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) [2021-01-26 17:37:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:37:57,142 INFO L93 Difference]: Finished difference Result 93543 states and 406523 transitions. [2021-01-26 17:37:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:37:57,145 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 [2021-01-26 17:37:57,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:37:57,527 INFO L225 Difference]: With dead ends: 93543 [2021-01-26 17:37:57,528 INFO L226 Difference]: Without dead ends: 32146 [2021-01-26 17:37:57,531 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 17:37:57,531 INFO L78 Accepts]: Start accepts. Automaton has 32146 states. Word has length 49 [2021-01-26 17:37:57,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:37:57,533 INFO L481 AbstractCegarLoop]: Abstraction has 32146 states. [2021-01-26 17:37:57,534 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) [2021-01-26 17:37:57,534 INFO L276 IsEmpty]: Start isEmpty. Operand 32146 states. [2021-01-26 17:37:57,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-26 17:37:57,612 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:37:57,613 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] [2021-01-26 17:37:57,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:37:57,613 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:37:57,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:37:57,615 INFO L82 PathProgramCache]: Analyzing trace with hash -2026880935, now seen corresponding path program 1 times [2021-01-26 17:37:57,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:37:57,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656343480] [2021-01-26 17:37:57,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:37:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:37:58,249 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 17:37:58,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656343480] [2021-01-26 17:37:58,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:37:58,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:37:58,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439705963] [2021-01-26 17:37:58,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:37:58,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:37:58,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:37:58,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:37:58,253 INFO L87 Difference]: Start difference. First operand 32146 states. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:58,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:37:58,877 INFO L93 Difference]: Finished difference Result 35086 states and 148580 transitions. [2021-01-26 17:37:58,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:37:58,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-26 17:37:58,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:37:59,048 INFO L225 Difference]: With dead ends: 35086 [2021-01-26 17:37:59,048 INFO L226 Difference]: Without dead ends: 28226 [2021-01-26 17:37:59,050 INFO L769 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 [2021-01-26 17:37:59,050 INFO L78 Accepts]: Start accepts. Automaton has 28226 states. Word has length 51 [2021-01-26 17:37:59,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:37:59,051 INFO L481 AbstractCegarLoop]: Abstraction has 28226 states. [2021-01-26 17:37:59,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:37:59,051 INFO L276 IsEmpty]: Start isEmpty. Operand 28226 states. [2021-01-26 17:37:59,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-26 17:37:59,500 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:37:59,500 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] [2021-01-26 17:37:59,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:37:59,502 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:37:59,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:37:59,505 INFO L82 PathProgramCache]: Analyzing trace with hash 412575002, now seen corresponding path program 1 times [2021-01-26 17:37:59,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:37:59,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551854832] [2021-01-26 17:37:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:37:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:37:59,817 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 17:37:59,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551854832] [2021-01-26 17:37:59,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:37:59,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:37:59,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109476868] [2021-01-26 17:37:59,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:37:59,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:37:59,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:37:59,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:37:59,821 INFO L87 Difference]: Start difference. First operand 28226 states. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:38:00,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:38:00,284 INFO L93 Difference]: Finished difference Result 30326 states and 127602 transitions. [2021-01-26 17:38:00,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:38:00,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-01-26 17:38:00,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:38:00,422 INFO L225 Difference]: With dead ends: 30326 [2021-01-26 17:38:00,422 INFO L226 Difference]: Without dead ends: 25426 [2021-01-26 17:38:00,424 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 17:38:00,424 INFO L78 Accepts]: Start accepts. Automaton has 25426 states. Word has length 53 [2021-01-26 17:38:00,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:38:00,427 INFO L481 AbstractCegarLoop]: Abstraction has 25426 states. [2021-01-26 17:38:00,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:38:00,427 INFO L276 IsEmpty]: Start isEmpty. Operand 25426 states. [2021-01-26 17:38:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-26 17:38:00,498 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:38:00,498 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:38:00,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:38:00,498 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:38:00,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:38:00,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1670743673, now seen corresponding path program 1 times [2021-01-26 17:38:00,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:38:00,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486287277] [2021-01-26 17:38:00,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:38:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:38:01,024 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 17:38:01,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486287277] [2021-01-26 17:38:01,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:38:01,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:38:01,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772214246] [2021-01-26 17:38:01,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:38:01,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:38:01,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:38:01,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:38:01,029 INFO L87 Difference]: Start difference. First operand 25426 states. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:38:01,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:38:01,373 INFO L93 Difference]: Finished difference Result 26926 states and 112812 transitions. [2021-01-26 17:38:01,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:38:01,374 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-26 17:38:01,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:38:01,462 INFO L225 Difference]: With dead ends: 26926 [2021-01-26 17:38:01,463 INFO L226 Difference]: Without dead ends: 23426 [2021-01-26 17:38:01,463 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 17:38:01,463 INFO L78 Accepts]: Start accepts. Automaton has 23426 states. Word has length 55 [2021-01-26 17:38:01,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:38:01,464 INFO L481 AbstractCegarLoop]: Abstraction has 23426 states. [2021-01-26 17:38:01,464 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) [2021-01-26 17:38:01,465 INFO L276 IsEmpty]: Start isEmpty. Operand 23426 states. [2021-01-26 17:38:01,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-26 17:38:01,527 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:38:01,528 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] [2021-01-26 17:38:01,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:38:01,528 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:38:01,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:38:01,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1540026502, now seen corresponding path program 1 times [2021-01-26 17:38:01,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:38:01,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966362547] [2021-01-26 17:38:01,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:38:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:38:01,752 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 17:38:01,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966362547] [2021-01-26 17:38:01,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:38:01,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:38:01,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903341039] [2021-01-26 17:38:01,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:38:01,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:38:01,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:38:01,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:38:01,755 INFO L87 Difference]: Start difference. First operand 23426 states. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:38:02,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:38:02,454 INFO L93 Difference]: Finished difference Result 32426 states and 135022 transitions. [2021-01-26 17:38:02,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:38:02,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-01-26 17:38:02,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:38:02,517 INFO L225 Difference]: With dead ends: 32426 [2021-01-26 17:38:02,518 INFO L226 Difference]: Without dead ends: 16801 [2021-01-26 17:38:02,518 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:38:02,518 INFO L78 Accepts]: Start accepts. Automaton has 16801 states. Word has length 57 [2021-01-26 17:38:02,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:38:02,519 INFO L481 AbstractCegarLoop]: Abstraction has 16801 states. [2021-01-26 17:38:02,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:38:02,519 INFO L276 IsEmpty]: Start isEmpty. Operand 16801 states. [2021-01-26 17:38:02,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-26 17:38:02,555 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:38:02,555 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] [2021-01-26 17:38:02,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:38:02,555 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:38:02,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:38:02,556 INFO L82 PathProgramCache]: Analyzing trace with hash 860241948, now seen corresponding path program 1 times [2021-01-26 17:38:02,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:38:02,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278727637] [2021-01-26 17:38:02,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:38:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:38:02,702 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 17:38:02,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278727637] [2021-01-26 17:38:02,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:38:02,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:38:02,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57432744] [2021-01-26 17:38:02,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:38:02,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:38:02,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:38:02,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:38:02,706 INFO L87 Difference]: Start difference. First operand 16801 states. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:38:03,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:38:03,109 INFO L93 Difference]: Finished difference Result 22241 states and 90429 transitions. [2021-01-26 17:38:03,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:38:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-01-26 17:38:03,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:38:03,167 INFO L225 Difference]: With dead ends: 22241 [2021-01-26 17:38:03,167 INFO L226 Difference]: Without dead ends: 11231 [2021-01-26 17:38:03,169 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:38:03,169 INFO L78 Accepts]: Start accepts. Automaton has 11231 states. Word has length 58 [2021-01-26 17:38:03,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:38:03,170 INFO L481 AbstractCegarLoop]: Abstraction has 11231 states. [2021-01-26 17:38:03,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:38:03,171 INFO L276 IsEmpty]: Start isEmpty. Operand 11231 states. [2021-01-26 17:38:03,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-26 17:38:03,200 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:38:03,201 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] [2021-01-26 17:38:03,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-26 17:38:03,202 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:38:03,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:38:03,208 INFO L82 PathProgramCache]: Analyzing trace with hash 76604536, now seen corresponding path program 1 times [2021-01-26 17:38:03,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:38:03,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636350602] [2021-01-26 17:38:03,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:38:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:38:03,388 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 17:38:03,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636350602] [2021-01-26 17:38:03,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:38:03,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:38:03,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055487076] [2021-01-26 17:38:03,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:38:03,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:38:03,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:38:03,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:38:03,391 INFO L87 Difference]: Start difference. First operand 11231 states. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:38:03,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:38:03,998 INFO L93 Difference]: Finished difference Result 14431 states and 57257 transitions. [2021-01-26 17:38:03,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:38:03,999 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-01-26 17:38:03,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:38:04,025 INFO L225 Difference]: With dead ends: 14431 [2021-01-26 17:38:04,025 INFO L226 Difference]: Without dead ends: 7651 [2021-01-26 17:38:04,026 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:38:04,026 INFO L78 Accepts]: Start accepts. Automaton has 7651 states. Word has length 59 [2021-01-26 17:38:04,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:38:04,027 INFO L481 AbstractCegarLoop]: Abstraction has 7651 states. [2021-01-26 17:38:04,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:38:04,027 INFO L276 IsEmpty]: Start isEmpty. Operand 7651 states. [2021-01-26 17:38:04,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-01-26 17:38:04,043 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:38:04,043 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] [2021-01-26 17:38:04,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-26 17:38:04,044 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:38:04,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:38:04,044 INFO L82 PathProgramCache]: Analyzing trace with hash 916292456, now seen corresponding path program 1 times [2021-01-26 17:38:04,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:38:04,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596718188] [2021-01-26 17:38:04,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:38:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:38:04,185 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 17:38:04,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596718188] [2021-01-26 17:38:04,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:38:04,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:38:04,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481933693] [2021-01-26 17:38:04,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:38:04,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:38:04,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:38:04,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:38:04,191 INFO L87 Difference]: Start difference. First operand 7651 states. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 17:38:04,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:38:04,391 INFO L93 Difference]: Finished difference Result 6371 states and 24371 transitions. [2021-01-26 17:38:04,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:38:04,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2021-01-26 17:38:04,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:38:04,392 INFO L225 Difference]: With dead ends: 6371 [2021-01-26 17:38:04,392 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:38:04,393 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:38:04,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 60 [2021-01-26 17:38:04,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:38:04,393 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:38:04,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 17:38:04,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:38:04,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:38:04,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-26 17:38:04,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:38:04 BasicIcfg [2021-01-26 17:38:04,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:38:04,408 INFO L168 Benchmark]: Toolchain (without parser) took 26224.39 ms. Allocated memory was 304.1 MB in the beginning and 7.7 GB in the end (delta: 7.4 GB). Free memory was 278.1 MB in the beginning and 6.7 GB in the end (delta: -6.4 GB). Peak memory consumption was 957.8 MB. Max. memory is 16.0 GB. [2021-01-26 17:38:04,409 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 304.1 MB. Free memory was 275.0 MB in the beginning and 275.0 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:38:04,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 853.54 ms. Allocated memory is still 304.1 MB. Free memory was 277.1 MB in the beginning and 277.1 MB in the end (delta: 42.9 kB). Peak memory consumption was 26.2 MB. Max. memory is 16.0 GB. [2021-01-26 17:38:04,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.94 ms. Allocated memory is still 304.1 MB. Free memory was 277.1 MB in the beginning and 275.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:38:04,414 INFO L168 Benchmark]: Boogie Preprocessor took 61.87 ms. Allocated memory is still 304.1 MB. Free memory was 275.2 MB in the beginning and 273.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:38:04,415 INFO L168 Benchmark]: RCFGBuilder took 674.96 ms. Allocated memory is still 304.1 MB. Free memory was 273.1 MB in the beginning and 247.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-01-26 17:38:04,421 INFO L168 Benchmark]: TraceAbstraction took 24518.19 ms. Allocated memory was 304.1 MB in the beginning and 7.7 GB in the end (delta: 7.4 GB). Free memory was 247.9 MB in the beginning and 6.7 GB in the end (delta: -6.4 GB). Peak memory consumption was 927.4 MB. Max. memory is 16.0 GB. [2021-01-26 17:38:04,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 304.1 MB. Free memory was 275.0 MB in the beginning and 275.0 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 853.54 ms. Allocated memory is still 304.1 MB. Free memory was 277.1 MB in the beginning and 277.1 MB in the end (delta: 42.9 kB). Peak memory consumption was 26.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 89.94 ms. Allocated memory is still 304.1 MB. Free memory was 277.1 MB in the beginning and 275.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 61.87 ms. Allocated memory is still 304.1 MB. Free memory was 275.2 MB in the beginning and 273.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 674.96 ms. Allocated memory is still 304.1 MB. Free memory was 273.1 MB in the beginning and 247.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 24518.19 ms. Allocated memory was 304.1 MB in the beginning and 7.7 GB in the end (delta: 7.4 GB). Free memory was 247.9 MB in the beginning and 6.7 GB in the end (delta: -6.4 GB). Peak memory consumption was 927.4 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 5 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.3s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.6s, HoareTripleCheckerStatistics: 990 SDtfs, 1325 SDslu, 3054 SDs, 0 SdLazy, 190 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73649occurred 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, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 442 NumberOfCodeBlocks, 442 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 67994 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...