/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/safe027_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:14:02,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:14:02,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:14:02,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:14:02,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:14:02,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:14:02,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:14:02,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:14:02,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:14:02,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:14:02,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:14:02,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:14:02,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:14:02,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:14:02,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:14:02,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:14:02,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:14:02,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:14:02,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:14:02,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:14:02,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:14:02,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:14:02,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:14:02,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:14:02,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 18:14:02,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:14:02,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:14:02,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:14:02,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:14:02,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:14:02,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:14:02,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:14:02,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:14:02,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:14:02,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:14:02,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:14:02,510 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 [2020-11-11 18:14:02,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:14:02,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:14:02,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:14:02,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:14:02,540 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:14:02,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:14:02,540 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:14:02,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:14:02,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:14:02,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:14:02,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:14:02,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:14:02,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:14:02,542 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:14:02,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:14:02,542 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:14:02,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:14:02,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:14:02,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:14:02,543 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:14:02,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:14:02,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:14:02,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:14:02,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:14:02,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:14:02,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:14:02,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:14:02,545 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:14:02,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:14:02,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:14:02,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:14:02,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:14:02,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:14:02,924 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:14:02,925 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:14:02,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2020-11-11 18:14:03,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6c3aa25e/e5d951df318e43e3812646a62554a743/FLAGc40ad7d05 [2020-11-11 18:14:03,789 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:14:03,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2020-11-11 18:14:03,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6c3aa25e/e5d951df318e43e3812646a62554a743/FLAGc40ad7d05 [2020-11-11 18:14:03,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6c3aa25e/e5d951df318e43e3812646a62554a743 [2020-11-11 18:14:03,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:14:03,845 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:14:03,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:14:03,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:14:03,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:14:03,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:14:03" (1/1) ... [2020-11-11 18:14:03,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373bda13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:03, skipping insertion in model container [2020-11-11 18:14:03,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:14:03" (1/1) ... [2020-11-11 18:14:03,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:14:03,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:14:04,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:14:04,328 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:14:04,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:14:04,459 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:14:04,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:04 WrapperNode [2020-11-11 18:14:04,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:14:04,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:14:04,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:14:04,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:14:04,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:04" (1/1) ... [2020-11-11 18:14:04,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:04" (1/1) ... [2020-11-11 18:14:04,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:14:04,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:14:04,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:14:04,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:14:04,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:04" (1/1) ... [2020-11-11 18:14:04,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:04" (1/1) ... [2020-11-11 18:14:04,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:04" (1/1) ... [2020-11-11 18:14:04,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:04" (1/1) ... [2020-11-11 18:14:04,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:04" (1/1) ... [2020-11-11 18:14:04,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:04" (1/1) ... [2020-11-11 18:14:04,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:04" (1/1) ... [2020-11-11 18:14:04,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:14:04,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:14:04,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:14:04,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:14:04,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:14:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:14:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:14:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:14:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:14:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:14:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:14:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:14:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:14:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-11 18:14:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-11 18:14:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-11 18:14:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-11 18:14:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:14:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:14:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:14:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:14:04,658 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:14:05,234 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:14:05,235 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:14:05,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:14:05 BoogieIcfgContainer [2020-11-11 18:14:05,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:14:05,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:14:05,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:14:05,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:14:05,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:14:03" (1/3) ... [2020-11-11 18:14:05,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b531375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:14:05, skipping insertion in model container [2020-11-11 18:14:05,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:04" (2/3) ... [2020-11-11 18:14:05,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b531375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:14:05, skipping insertion in model container [2020-11-11 18:14:05,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:14:05" (3/3) ... [2020-11-11 18:14:05,247 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2020-11-11 18:14:05,263 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:14:05,263 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:14:05,267 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:14:05,268 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:14:05,306 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,306 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,307 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,307 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,307 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,308 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,313 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,314 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,314 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,314 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,315 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,315 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,316 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,316 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,316 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,317 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,317 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,320 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,321 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,321 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,321 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,324 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,324 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,324 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,324 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,325 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,325 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,325 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,325 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,325 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,326 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,326 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,326 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,332 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,333 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,333 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,333 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,339 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,339 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,339 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,340 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,344 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,345 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,345 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,345 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,347 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,347 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,348 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:05,350 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:14:05,365 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-11 18:14:05,402 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:14:05,402 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:14:05,402 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:14:05,402 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:14:05,403 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:14:05,403 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:14:05,403 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:14:05,403 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:14:05,422 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 91 transitions, 202 flow [2020-11-11 18:14:13,574 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:13,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:13,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-11 18:14:13,816 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:13,817 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:13,817 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:13,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:13,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1453792105, now seen corresponding path program 1 times [2020-11-11 18:14:13,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:13,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514196577] [2020-11-11 18:14:13,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:14,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514196577] [2020-11-11 18:14:14,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:14,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:14:14,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968236234] [2020-11-11 18:14:14,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:14:14,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:14,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:14:14,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:14:14,624 INFO L87 Difference]: Start difference. First operand has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:16,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:16,205 INFO L93 Difference]: Finished difference Result 68929 states and 296105 transitions. [2020-11-11 18:14:16,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:14:16,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-11 18:14:16,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:16,541 INFO L225 Difference]: With dead ends: 68929 [2020-11-11 18:14:16,550 INFO L226 Difference]: Without dead ends: 23821 [2020-11-11 18:14:16,555 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:14:17,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23821 states. [2020-11-11 18:14:17,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23821 to 23821. [2020-11-11 18:14:18,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23821 states, 23820 states have (on average 4.223887489504618) internal successors, (100613), 23820 states have internal predecessors, (100613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:18,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23821 states to 23821 states and 100613 transitions. [2020-11-11 18:14:18,464 INFO L78 Accepts]: Start accepts. Automaton has 23821 states and 100613 transitions. Word has length 47 [2020-11-11 18:14:18,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:18,465 INFO L481 AbstractCegarLoop]: Abstraction has 23821 states and 100613 transitions. [2020-11-11 18:14:18,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:18,466 INFO L276 IsEmpty]: Start isEmpty. Operand 23821 states and 100613 transitions. [2020-11-11 18:14:18,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-11 18:14:18,558 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:18,558 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:18,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:14:18,559 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:18,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:18,564 INFO L82 PathProgramCache]: Analyzing trace with hash 2134201304, now seen corresponding path program 1 times [2020-11-11 18:14:18,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:18,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66039514] [2020-11-11 18:14:18,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:18,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66039514] [2020-11-11 18:14:18,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:18,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:14:18,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691024518] [2020-11-11 18:14:18,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:14:18,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:18,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:14:18,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:14:18,776 INFO L87 Difference]: Start difference. First operand 23821 states and 100613 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:19,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:19,259 INFO L93 Difference]: Finished difference Result 31381 states and 131411 transitions. [2020-11-11 18:14:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:14:19,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2020-11-11 18:14:19,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:19,324 INFO L225 Difference]: With dead ends: 31381 [2020-11-11 18:14:19,325 INFO L226 Difference]: Without dead ends: 16541 [2020-11-11 18:14:19,326 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:14:19,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16541 states. [2020-11-11 18:14:20,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16541 to 16541. [2020-11-11 18:14:20,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16541 states, 16540 states have (on average 4.152055622732769) internal successors, (68675), 16540 states have internal predecessors, (68675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:20,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16541 states to 16541 states and 68675 transitions. [2020-11-11 18:14:20,527 INFO L78 Accepts]: Start accepts. Automaton has 16541 states and 68675 transitions. Word has length 49 [2020-11-11 18:14:20,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:20,528 INFO L481 AbstractCegarLoop]: Abstraction has 16541 states and 68675 transitions. [2020-11-11 18:14:20,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:20,528 INFO L276 IsEmpty]: Start isEmpty. Operand 16541 states and 68675 transitions. [2020-11-11 18:14:20,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-11 18:14:20,603 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:20,604 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:20,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:14:20,604 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:20,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:20,605 INFO L82 PathProgramCache]: Analyzing trace with hash -821966825, now seen corresponding path program 1 times [2020-11-11 18:14:20,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:20,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117075354] [2020-11-11 18:14:20,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:20,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:20,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117075354] [2020-11-11 18:14:20,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:20,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:14:20,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802177530] [2020-11-11 18:14:20,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:14:20,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:20,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:14:20,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:14:20,757 INFO L87 Difference]: Start difference. First operand 16541 states and 68675 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:21,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:21,017 INFO L93 Difference]: Finished difference Result 17981 states and 73907 transitions. [2020-11-11 18:14:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:14:21,018 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 [2020-11-11 18:14:21,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:21,086 INFO L225 Difference]: With dead ends: 17981 [2020-11-11 18:14:21,086 INFO L226 Difference]: Without dead ends: 14621 [2020-11-11 18:14:21,087 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:14:21,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14621 states. [2020-11-11 18:14:21,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14621 to 14621. [2020-11-11 18:14:21,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14621 states, 14620 states have (on average 4.121682626538988) internal successors, (60259), 14620 states have internal predecessors, (60259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:21,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14621 states to 14621 states and 60259 transitions. [2020-11-11 18:14:21,871 INFO L78 Accepts]: Start accepts. Automaton has 14621 states and 60259 transitions. Word has length 51 [2020-11-11 18:14:21,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:21,872 INFO L481 AbstractCegarLoop]: Abstraction has 14621 states and 60259 transitions. [2020-11-11 18:14:21,872 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) [2020-11-11 18:14:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 14621 states and 60259 transitions. [2020-11-11 18:14:21,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-11 18:14:21,933 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:21,933 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:21,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:14:21,934 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:21,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:21,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1748725576, now seen corresponding path program 1 times [2020-11-11 18:14:21,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:21,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637983639] [2020-11-11 18:14:21,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:22,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637983639] [2020-11-11 18:14:22,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:22,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:14:22,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078456927] [2020-11-11 18:14:22,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:14:22,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:22,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:14:22,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:14:22,084 INFO L87 Difference]: Start difference. First operand 14621 states and 60259 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:22,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:22,437 INFO L93 Difference]: Finished difference Result 20061 states and 81751 transitions. [2020-11-11 18:14:22,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:14:22,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-11-11 18:14:22,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:22,496 INFO L225 Difference]: With dead ends: 20061 [2020-11-11 18:14:22,496 INFO L226 Difference]: Without dead ends: 10701 [2020-11-11 18:14:22,496 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:14:22,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2020-11-11 18:14:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 10701. [2020-11-11 18:14:23,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10701 states, 10700 states have (on average 4.023271028037383) internal successors, (43049), 10700 states have internal predecessors, (43049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:23,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10701 states to 10701 states and 43049 transitions. [2020-11-11 18:14:23,276 INFO L78 Accepts]: Start accepts. Automaton has 10701 states and 43049 transitions. Word has length 53 [2020-11-11 18:14:23,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:23,277 INFO L481 AbstractCegarLoop]: Abstraction has 10701 states and 43049 transitions. [2020-11-11 18:14:23,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:23,280 INFO L276 IsEmpty]: Start isEmpty. Operand 10701 states and 43049 transitions. [2020-11-11 18:14:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-11 18:14:23,306 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:23,307 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:23,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:14:23,308 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:23,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:23,309 INFO L82 PathProgramCache]: Analyzing trace with hash 426422777, now seen corresponding path program 1 times [2020-11-11 18:14:23,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:23,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025736962] [2020-11-11 18:14:23,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:23,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:23,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025736962] [2020-11-11 18:14:23,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:23,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:14:23,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290851670] [2020-11-11 18:14:23,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:14:23,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:23,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:14:23,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:14:23,440 INFO L87 Difference]: Start difference. First operand 10701 states and 43049 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:23,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:23,653 INFO L93 Difference]: Finished difference Result 14445 states and 57641 transitions. [2020-11-11 18:14:23,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:14:23,653 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-11 18:14:23,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:23,690 INFO L225 Difference]: With dead ends: 14445 [2020-11-11 18:14:23,690 INFO L226 Difference]: Without dead ends: 10349 [2020-11-11 18:14:23,691 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:14:23,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10349 states. [2020-11-11 18:14:23,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10349 to 10349. [2020-11-11 18:14:23,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10349 states, 10348 states have (on average 4.005508310784693) internal successors, (41449), 10348 states have internal predecessors, (41449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:23,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10349 states to 10349 states and 41449 transitions. [2020-11-11 18:14:23,993 INFO L78 Accepts]: Start accepts. Automaton has 10349 states and 41449 transitions. Word has length 55 [2020-11-11 18:14:23,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:23,993 INFO L481 AbstractCegarLoop]: Abstraction has 10349 states and 41449 transitions. [2020-11-11 18:14:23,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:23,994 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states and 41449 transitions. [2020-11-11 18:14:24,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-11 18:14:24,015 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:24,015 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:24,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:14:24,016 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:24,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:24,016 INFO L82 PathProgramCache]: Analyzing trace with hash 809833087, now seen corresponding path program 1 times [2020-11-11 18:14:24,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:24,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920190735] [2020-11-11 18:14:24,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:24,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:24,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920190735] [2020-11-11 18:14:24,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:24,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:14:24,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999376311] [2020-11-11 18:14:24,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:14:24,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:24,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:14:24,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:14:24,151 INFO L87 Difference]: Start difference. First operand 10349 states and 41449 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:24,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:24,554 INFO L93 Difference]: Finished difference Result 12701 states and 50085 transitions. [2020-11-11 18:14:24,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:14:24,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2020-11-11 18:14:24,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:24,587 INFO L225 Difference]: With dead ends: 12701 [2020-11-11 18:14:24,587 INFO L226 Difference]: Without dead ends: 8861 [2020-11-11 18:14:24,588 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:14:24,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8861 states. [2020-11-11 18:14:24,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8861 to 8861. [2020-11-11 18:14:24,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8860 states have (on average 3.9283295711060946) internal successors, (34805), 8860 states have internal predecessors, (34805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:24,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 34805 transitions. [2020-11-11 18:14:24,846 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 34805 transitions. Word has length 56 [2020-11-11 18:14:24,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:24,847 INFO L481 AbstractCegarLoop]: Abstraction has 8861 states and 34805 transitions. [2020-11-11 18:14:24,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:24,847 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 34805 transitions. [2020-11-11 18:14:24,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-11 18:14:24,873 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:24,873 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:24,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 18:14:24,873 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:24,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:24,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1848601464, now seen corresponding path program 1 times [2020-11-11 18:14:24,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:24,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802670997] [2020-11-11 18:14:24,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:25,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:25,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802670997] [2020-11-11 18:14:25,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:25,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-11 18:14:25,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943236448] [2020-11-11 18:14:25,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-11 18:14:25,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:25,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-11 18:14:25,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-11 18:14:25,070 INFO L87 Difference]: Start difference. First operand 8861 states and 34805 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:25,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:25,345 INFO L93 Difference]: Finished difference Result 8960 states and 34343 transitions. [2020-11-11 18:14:25,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-11 18:14:25,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2020-11-11 18:14:25,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:25,365 INFO L225 Difference]: With dead ends: 8960 [2020-11-11 18:14:25,366 INFO L226 Difference]: Without dead ends: 6080 [2020-11-11 18:14:25,367 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-11 18:14:25,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6080 states. [2020-11-11 18:14:25,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6080 to 6080. [2020-11-11 18:14:25,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6080 states, 6079 states have (on average 3.7726599769698965) internal successors, (22934), 6079 states have internal predecessors, (22934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:25,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6080 states to 6080 states and 22934 transitions. [2020-11-11 18:14:25,656 INFO L78 Accepts]: Start accepts. Automaton has 6080 states and 22934 transitions. Word has length 57 [2020-11-11 18:14:25,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:25,656 INFO L481 AbstractCegarLoop]: Abstraction has 6080 states and 22934 transitions. [2020-11-11 18:14:25,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 6080 states and 22934 transitions. [2020-11-11 18:14:25,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-11 18:14:25,669 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:25,670 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:25,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-11 18:14:25,670 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:25,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:25,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1336651321, now seen corresponding path program 1 times [2020-11-11 18:14:25,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:25,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344454244] [2020-11-11 18:14:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:25,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:25,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344454244] [2020-11-11 18:14:25,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:25,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-11 18:14:25,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569637619] [2020-11-11 18:14:25,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-11 18:14:25,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:25,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-11 18:14:25,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-11 18:14:25,805 INFO L87 Difference]: Start difference. First operand 6080 states and 22934 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:26,074 INFO L93 Difference]: Finished difference Result 4838 states and 17777 transitions. [2020-11-11 18:14:26,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-11 18:14:26,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2020-11-11 18:14:26,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:26,084 INFO L225 Difference]: With dead ends: 4838 [2020-11-11 18:14:26,084 INFO L226 Difference]: Without dead ends: 3434 [2020-11-11 18:14:26,085 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2020-11-11 18:14:26,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2020-11-11 18:14:26,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3434. [2020-11-11 18:14:26,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3433 states have (on average 3.5974366443344015) internal successors, (12350), 3433 states have internal predecessors, (12350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:26,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 12350 transitions. [2020-11-11 18:14:26,168 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 12350 transitions. Word has length 59 [2020-11-11 18:14:26,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:26,168 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 12350 transitions. [2020-11-11 18:14:26,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:26,168 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 12350 transitions. [2020-11-11 18:14:26,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-11 18:14:26,176 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:26,176 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:26,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-11 18:14:26,176 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:26,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:26,177 INFO L82 PathProgramCache]: Analyzing trace with hash -106927622, now seen corresponding path program 1 times [2020-11-11 18:14:26,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:26,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519562207] [2020-11-11 18:14:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:26,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:26,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519562207] [2020-11-11 18:14:26,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:26,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:14:26,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478983676] [2020-11-11 18:14:26,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:14:26,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:26,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:14:26,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:14:26,328 INFO L87 Difference]: Start difference. First operand 3434 states and 12350 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:26,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:26,452 INFO L93 Difference]: Finished difference Result 5059 states and 18255 transitions. [2020-11-11 18:14:26,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:14:26,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2020-11-11 18:14:26,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:26,459 INFO L225 Difference]: With dead ends: 5059 [2020-11-11 18:14:26,459 INFO L226 Difference]: Without dead ends: 2282 [2020-11-11 18:14:26,459 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:14:26,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2020-11-11 18:14:26,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2282. [2020-11-11 18:14:26,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 2281 states have (on average 3.5484436650591844) internal successors, (8094), 2281 states have internal predecessors, (8094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:26,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 8094 transitions. [2020-11-11 18:14:26,510 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 8094 transitions. Word has length 61 [2020-11-11 18:14:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:26,511 INFO L481 AbstractCegarLoop]: Abstraction has 2282 states and 8094 transitions. [2020-11-11 18:14:26,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:26,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 8094 transitions. [2020-11-11 18:14:26,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-11 18:14:26,515 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:26,516 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:26,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-11 18:14:26,516 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:26,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:26,517 INFO L82 PathProgramCache]: Analyzing trace with hash 903632240, now seen corresponding path program 2 times [2020-11-11 18:14:26,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:26,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750345818] [2020-11-11 18:14:26,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:26,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:26,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750345818] [2020-11-11 18:14:26,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:26,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:14:26,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50617895] [2020-11-11 18:14:26,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:14:26,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:26,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:14:26,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:14:26,607 INFO L87 Difference]: Start difference. First operand 2282 states and 8094 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:26,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:26,696 INFO L93 Difference]: Finished difference Result 1958 states and 6906 transitions. [2020-11-11 18:14:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:14:26,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2020-11-11 18:14:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:26,697 INFO L225 Difference]: With dead ends: 1958 [2020-11-11 18:14:26,697 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:14:26,697 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:14:26,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:14:26,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:14:26,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:26,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:14:26,698 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2020-11-11 18:14:26,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:26,698 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:14:26,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:26,699 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:14:26,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:14:26,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-11 18:14:26,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:14:26 BasicIcfg [2020-11-11 18:14:26,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:14:26,708 INFO L168 Benchmark]: Toolchain (without parser) took 22865.97 ms. Allocated memory was 302.0 MB in the beginning and 7.9 GB in the end (delta: 7.6 GB). Free memory was 276.9 MB in the beginning and 6.8 GB in the end (delta: -6.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.0 GB. [2020-11-11 18:14:26,708 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:14:26,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.51 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 245.1 MB in the end (delta: 31.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-11 18:14:26,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.63 ms. Allocated memory is still 302.0 MB. Free memory was 245.1 MB in the beginning and 283.5 MB in the end (delta: -38.4 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2020-11-11 18:14:26,716 INFO L168 Benchmark]: Boogie Preprocessor took 28.42 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 281.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:14:26,717 INFO L168 Benchmark]: RCFGBuilder took 691.83 ms. Allocated memory is still 302.0 MB. Free memory was 281.4 MB in the beginning and 256.3 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-11-11 18:14:26,721 INFO L168 Benchmark]: TraceAbstraction took 21464.86 ms. Allocated memory was 302.0 MB in the beginning and 7.9 GB in the end (delta: 7.6 GB). Free memory was 255.2 MB in the beginning and 6.8 GB in the end (delta: -6.5 GB). Peak memory consumption was 1.0 GB. Max. memory is 16.0 GB. [2020-11-11 18:14:26,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 613.51 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 245.1 MB in the end (delta: 31.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.63 ms. Allocated memory is still 302.0 MB. Free memory was 245.1 MB in the beginning and 283.5 MB in the end (delta: -38.4 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.42 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 281.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 691.83 ms. Allocated memory is still 302.0 MB. Free memory was 281.4 MB in the beginning and 256.3 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 21464.86 ms. Allocated memory was 302.0 MB in the beginning and 7.9 GB in the end (delta: 7.6 GB). Free memory was 255.2 MB in the beginning and 6.8 GB in the end (delta: -6.5 GB). Peak memory consumption was 1.0 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, HoareTripleCheckerStatistics: 1097 SDtfs, 1834 SDslu, 3649 SDs, 0 SdLazy, 443 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54313occurred 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: 5.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 549 NumberOfCodeBlocks, 549 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 539 ConstructedInterpolants, 0 QuantifiedInterpolants, 83341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...