/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:27:35,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:27:35,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:27:35,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:27:35,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:27:35,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:27:35,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:27:35,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:27:35,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:27:35,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:27:35,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:27:35,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:27:35,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:27:35,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:27:35,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:27:35,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:27:35,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:27:35,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:27:35,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:27:35,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:27:35,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:27:35,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:27:35,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:27:35,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:27:35,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:27:35,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:27:35,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:27:35,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:27:35,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:27:35,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:27:35,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:27:35,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:27:35,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:27:35,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:27:35,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:27:35,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:27:35,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf [2021-01-20 21:27:35,511 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:27:35,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:27:35,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:27:35,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:27:35,514 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:27:35,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:27:35,515 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:27:35,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:27:35,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:27:35,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:27:35,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:27:35,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:27:35,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:27:35,517 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:27:35,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:27:35,518 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:27:35,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:27:35,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:27:35,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:27:35,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:27:35,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:27:35,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:27:35,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:27:35,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:27:35,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:27:35,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:27:35,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:27:35,522 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:27:35,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:27:35,522 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:27:35,523 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:27:35,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:27:36,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:27:36,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:27:36,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:27:36,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:27:36,078 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:27:36,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2021-01-20 21:27:36,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb523568/7d144033eb0a43498ae9c7318f9c5d01/FLAG2620c8cc2 [2021-01-20 21:27:36,896 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:27:36,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2021-01-20 21:27:36,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb523568/7d144033eb0a43498ae9c7318f9c5d01/FLAG2620c8cc2 [2021-01-20 21:27:37,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb523568/7d144033eb0a43498ae9c7318f9c5d01 [2021-01-20 21:27:37,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:27:37,152 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:27:37,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:27:37,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:27:37,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:27:37,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:27:37" (1/1) ... [2021-01-20 21:27:37,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bdacfcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37, skipping insertion in model container [2021-01-20 21:27:37,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:27:37" (1/1) ... [2021-01-20 21:27:37,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:27:37,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:27:37,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:27:37,758 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:27:37,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:27:37,902 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:27:37,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37 WrapperNode [2021-01-20 21:27:37,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:27:37,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:27:37,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:27:37,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:27:37,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37" (1/1) ... [2021-01-20 21:27:37,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37" (1/1) ... [2021-01-20 21:27:37,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:27:37,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:27:37,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:27:37,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:27:37,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37" (1/1) ... [2021-01-20 21:27:37,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37" (1/1) ... [2021-01-20 21:27:37,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37" (1/1) ... [2021-01-20 21:27:37,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37" (1/1) ... [2021-01-20 21:27:37,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37" (1/1) ... [2021-01-20 21:27:37,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37" (1/1) ... [2021-01-20 21:27:37,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37" (1/1) ... [2021-01-20 21:27:37,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:27:37,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:27:37,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:27:37,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:27:38,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37" (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 [2021-01-20 21:27:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:27:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:27:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:27:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:27:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:27:38,094 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:27:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:27:38,094 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:27:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:27:38,095 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:27:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:27:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:27:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:27:38,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:27:38,097 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:27:38,520 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:27:38,521 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:27:38,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:27:38 BoogieIcfgContainer [2021-01-20 21:27:38,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:27:38,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:27:38,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:27:38,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:27:38,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:27:37" (1/3) ... [2021-01-20 21:27:38,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4644371c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:27:38, skipping insertion in model container [2021-01-20 21:27:38,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:37" (2/3) ... [2021-01-20 21:27:38,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4644371c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:27:38, skipping insertion in model container [2021-01-20 21:27:38,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:27:38" (3/3) ... [2021-01-20 21:27:38,533 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.opt.i [2021-01-20 21:27:38,552 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:27:38,552 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:27:38,556 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:27:38,557 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:27:38,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,597 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,597 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,597 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,598 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,598 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,599 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,599 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,601 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,601 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,601 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,601 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,602 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,602 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,604 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,604 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,604 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,605 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,605 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,605 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,605 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,605 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,606 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,606 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,607 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,607 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,607 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,612 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,612 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,612 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,613 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,630 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,641 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,641 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:38,652 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:27:38,672 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:27:38,715 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:27:38,716 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:27:38,716 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:27:38,716 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:27:38,716 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:27:38,716 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:27:38,716 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:27:38,717 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:27:38,738 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-20 21:27:39,736 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2021-01-20 21:27:39,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2021-01-20 21:27:39,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 21:27:39,841 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:39,842 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] [2021-01-20 21:27:39,843 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:39,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:39,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1916858186, now seen corresponding path program 1 times [2021-01-20 21:27:39,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:39,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15516486] [2021-01-20 21:27:39,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:40,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:40,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15516486] [2021-01-20 21:27:40,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:40,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:27:40,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70443526] [2021-01-20 21:27:40,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:27:40,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:40,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:27:40,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:27:40,457 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) 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) [2021-01-20 21:27:40,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:40,868 INFO L93 Difference]: Finished difference Result 13208 states and 46044 transitions. [2021-01-20 21:27:40,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:27:40,870 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 [2021-01-20 21:27:40,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:40,873 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 [2021-01-20 21:27:40,873 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 46044 transitions. Word has length 42 [2021-01-20 21:27:40,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:40,875 INFO L481 AbstractCegarLoop]: Abstraction has 13208 states and 46044 transitions. [2021-01-20 21:27:40,875 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) [2021-01-20 21:27:40,875 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 46044 transitions. [2021-01-20 21:27:40,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 21:27:40,895 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:40,896 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] [2021-01-20 21:27:40,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:27:40,896 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:40,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:40,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1520283371, now seen corresponding path program 1 times [2021-01-20 21:27:40,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:40,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712505198] [2021-01-20 21:27:40,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:41,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712505198] [2021-01-20 21:27:41,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:41,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:27:41,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861889341] [2021-01-20 21:27:41,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:27:41,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:41,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:27:41,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:27:41,086 INFO L87 Difference]: Start difference. First operand 13208 states and 46044 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-01-20 21:27:41,249 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2021-01-20 21:27:41,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:41,501 INFO L93 Difference]: Finished difference Result 11075 states and 37454 transitions. [2021-01-20 21:27:41,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:27:41,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2021-01-20 21:27:41,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:41,504 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:27:41,504 INFO L78 Accepts]: Start accepts. Automaton has 11075 states and 37454 transitions. Word has length 44 [2021-01-20 21:27:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:41,505 INFO L481 AbstractCegarLoop]: Abstraction has 11075 states and 37454 transitions. [2021-01-20 21:27:41,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-01-20 21:27:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 11075 states and 37454 transitions. [2021-01-20 21:27:41,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-20 21:27:41,524 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:41,524 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] [2021-01-20 21:27:41,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:27:41,525 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:41,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:41,526 INFO L82 PathProgramCache]: Analyzing trace with hash 44408180, now seen corresponding path program 1 times [2021-01-20 21:27:41,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:41,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035648270] [2021-01-20 21:27:41,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:41,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:41,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035648270] [2021-01-20 21:27:41,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:41,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:27:41,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7339201] [2021-01-20 21:27:41,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:27:41,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:41,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:27:41,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:27:41,686 INFO L87 Difference]: Start difference. First operand 11075 states and 37454 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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) [2021-01-20 21:27:42,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:42,020 INFO L93 Difference]: Finished difference Result 7280 states and 23851 transitions. [2021-01-20 21:27:42,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:27:42,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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 [2021-01-20 21:27:42,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:42,022 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:27:42,022 INFO L78 Accepts]: Start accepts. Automaton has 7280 states and 23851 transitions. Word has length 46 [2021-01-20 21:27:42,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:42,023 INFO L481 AbstractCegarLoop]: Abstraction has 7280 states and 23851 transitions. [2021-01-20 21:27:42,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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) [2021-01-20 21:27:42,023 INFO L276 IsEmpty]: Start isEmpty. Operand 7280 states and 23851 transitions. [2021-01-20 21:27:42,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 21:27:42,090 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:42,090 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] [2021-01-20 21:27:42,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:27:42,091 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:42,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:42,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1894826698, now seen corresponding path program 1 times [2021-01-20 21:27:42,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:42,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893856760] [2021-01-20 21:27:42,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:42,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:42,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893856760] [2021-01-20 21:27:42,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:42,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:27:42,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544344848] [2021-01-20 21:27:42,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:27:42,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:42,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:27:42,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:27:42,314 INFO L87 Difference]: Start difference. First operand 7280 states and 23851 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:42,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:42,711 INFO L93 Difference]: Finished difference Result 5363 states and 17389 transitions. [2021-01-20 21:27:42,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:27:42,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-01-20 21:27:42,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:42,713 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:27:42,713 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 17389 transitions. Word has length 50 [2021-01-20 21:27:42,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:42,714 INFO L481 AbstractCegarLoop]: Abstraction has 5363 states and 17389 transitions. [2021-01-20 21:27:42,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:42,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 17389 transitions. [2021-01-20 21:27:42,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:27:42,772 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:42,773 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] [2021-01-20 21:27:42,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:27:42,773 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:42,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:42,774 INFO L82 PathProgramCache]: Analyzing trace with hash -60408392, now seen corresponding path program 1 times [2021-01-20 21:27:42,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:42,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087624031] [2021-01-20 21:27:42,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:42,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:42,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087624031] [2021-01-20 21:27:42,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:42,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:27:42,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115800627] [2021-01-20 21:27:42,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:27:42,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:42,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:27:42,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:27:42,928 INFO L87 Difference]: Start difference. First operand 5363 states and 17389 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:43,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:43,058 INFO L93 Difference]: Finished difference Result 7993 states and 25639 transitions. [2021-01-20 21:27:43,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-20 21:27:43,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 21:27:43,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:43,060 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-20 21:27:43,060 INFO L78 Accepts]: Start accepts. Automaton has 7993 states and 25639 transitions. Word has length 54 [2021-01-20 21:27:43,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:43,063 INFO L481 AbstractCegarLoop]: Abstraction has 7993 states and 25639 transitions. [2021-01-20 21:27:43,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:43,063 INFO L276 IsEmpty]: Start isEmpty. Operand 7993 states and 25639 transitions. [2021-01-20 21:27:43,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:27:43,088 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:43,088 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] [2021-01-20 21:27:43,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:27:43,088 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:43,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:43,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1912523388, now seen corresponding path program 2 times [2021-01-20 21:27:43,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:43,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505575595] [2021-01-20 21:27:43,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:43,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:43,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505575595] [2021-01-20 21:27:43,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:43,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:27:43,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456652320] [2021-01-20 21:27:43,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:27:43,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:43,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:27:43,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:27:43,254 INFO L87 Difference]: Start difference. First operand 7993 states and 25639 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:43,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:43,500 INFO L93 Difference]: Finished difference Result 12428 states and 39394 transitions. [2021-01-20 21:27:43,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:27:43,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 21:27:43,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:43,502 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:27:43,502 INFO L78 Accepts]: Start accepts. Automaton has 12428 states and 39394 transitions. Word has length 54 [2021-01-20 21:27:43,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:43,502 INFO L481 AbstractCegarLoop]: Abstraction has 12428 states and 39394 transitions. [2021-01-20 21:27:43,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:43,503 INFO L276 IsEmpty]: Start isEmpty. Operand 12428 states and 39394 transitions. [2021-01-20 21:27:43,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:27:43,554 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:43,554 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] [2021-01-20 21:27:43,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:27:43,555 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:43,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:43,555 INFO L82 PathProgramCache]: Analyzing trace with hash -2071801964, now seen corresponding path program 3 times [2021-01-20 21:27:43,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:43,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478523162] [2021-01-20 21:27:43,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:43,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:43,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478523162] [2021-01-20 21:27:43,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:43,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:27:43,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936016870] [2021-01-20 21:27:43,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:27:43,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:43,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:27:43,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:27:43,661 INFO L87 Difference]: Start difference. First operand 12428 states and 39394 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:43,935 INFO L93 Difference]: Finished difference Result 18640 states and 58534 transitions. [2021-01-20 21:27:43,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:27:43,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 21:27:43,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:43,937 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:27:43,937 INFO L78 Accepts]: Start accepts. Automaton has 18640 states and 58534 transitions. Word has length 54 [2021-01-20 21:27:43,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:43,937 INFO L481 AbstractCegarLoop]: Abstraction has 18640 states and 58534 transitions. [2021-01-20 21:27:43,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:43,938 INFO L276 IsEmpty]: Start isEmpty. Operand 18640 states and 58534 transitions. [2021-01-20 21:27:43,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:27:43,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:27:43,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:27:43 BasicIcfg [2021-01-20 21:27:43,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:27:43,990 INFO L168 Benchmark]: Toolchain (without parser) took 6838.46 ms. Allocated memory was 302.0 MB in the beginning and 639.6 MB in the end (delta: 337.6 MB). Free memory was 275.9 MB in the beginning and 457.2 MB in the end (delta: -181.3 MB). Peak memory consumption was 156.8 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:43,991 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 302.0 MB. Free memory is still 271.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:27:43,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.25 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 244.9 MB in the end (delta: 30.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:43,992 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.78 ms. Allocated memory is still 302.0 MB. Free memory was 244.9 MB in the beginning and 243.1 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:27:43,993 INFO L168 Benchmark]: Boogie Preprocessor took 37.59 ms. Allocated memory is still 302.0 MB. Free memory was 242.9 MB in the beginning and 241.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:43,994 INFO L168 Benchmark]: RCFGBuilder took 526.15 ms. Allocated memory is still 302.0 MB. Free memory was 241.6 MB in the beginning and 263.4 MB in the end (delta: -21.8 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:43,995 INFO L168 Benchmark]: TraceAbstraction took 5462.57 ms. Allocated memory was 302.0 MB in the beginning and 639.6 MB in the end (delta: 337.6 MB). Free memory was 263.4 MB in the beginning and 457.2 MB in the end (delta: -193.8 MB). Peak memory consumption was 145.9 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:43,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 302.0 MB. Free memory is still 271.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 746.25 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 244.9 MB in the end (delta: 30.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.78 ms. Allocated memory is still 302.0 MB. Free memory was 244.9 MB in the beginning and 243.1 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 37.59 ms. Allocated memory is still 302.0 MB. Free memory was 242.9 MB in the beginning and 241.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 526.15 ms. Allocated memory is still 302.0 MB. Free memory was 241.6 MB in the beginning and 263.4 MB in the end (delta: -21.8 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5462.57 ms. Allocated memory was 302.0 MB in the beginning and 639.6 MB in the end (delta: 337.6 MB). Free memory was 263.4 MB in the beginning and 457.2 MB in the end (delta: -193.8 MB). Peak memory consumption was 145.9 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 764 SDtfs, 1249 SDslu, 2682 SDs, 0 SdLazy, 272 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18640occurred in iteration=7, 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, 0.9s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 337 ConstructedInterpolants, 0 QuantifiedInterpolants, 39631 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...