/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/01_inc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 08:04:36,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 08:04:36,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 08:04:36,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 08:04:36,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 08:04:36,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 08:04:36,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 08:04:36,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 08:04:36,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 08:04:36,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 08:04:36,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 08:04:36,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 08:04:36,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 08:04:36,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 08:04:36,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 08:04:36,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 08:04:36,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 08:04:36,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 08:04:36,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 08:04:36,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 08:04:36,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 08:04:36,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 08:04:36,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 08:04:36,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 08:04:36,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 08:04:36,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 08:04:36,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 08:04:36,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 08:04:36,662 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-Separate.epf [2021-06-05 08:04:36,687 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 08:04:36,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 08:04:36,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 08:04:36,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 08:04:36,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 08:04:36,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 08:04:36,689 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 08:04:36,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 08:04:36,690 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 08:04:36,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 08:04:36,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 08:04:36,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 08:04:36,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 08:04:36,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 08:04:36,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 08:04:36,690 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 08:04:36,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 08:04:36,691 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 08:04:36,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 08:04:36,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 08:04:36,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 08:04:36,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 08:04:36,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 08:04:36,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 08:04:36,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 08:04:36,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 08:04:36,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 08:04:36,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 08:04:36,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 08:04:36,692 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 08:04:36,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 08:04:36,692 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 08:04:36,693 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 08:04:37,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 08:04:37,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 08:04:37,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 08:04:37,029 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 08:04:37,031 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 08:04:37,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/01_inc.i [2021-06-05 08:04:37,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a87f47f3/40cd6c6e62644712ad3f7ad65d11ce47/FLAGf8237be88 [2021-06-05 08:04:37,568 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 08:04:37,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01_inc.i [2021-06-05 08:04:37,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a87f47f3/40cd6c6e62644712ad3f7ad65d11ce47/FLAGf8237be88 [2021-06-05 08:04:37,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a87f47f3/40cd6c6e62644712ad3f7ad65d11ce47 [2021-06-05 08:04:37,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 08:04:37,619 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 08:04:37,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 08:04:37,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 08:04:37,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 08:04:37,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:04:37" (1/1) ... [2021-06-05 08:04:37,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f46b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:37, skipping insertion in model container [2021-06-05 08:04:37,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:04:37" (1/1) ... [2021-06-05 08:04:37,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 08:04:37,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 08:04:37,864 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 08:04:38,022 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01_inc.i[30915,30928] [2021-06-05 08:04:38,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 08:04:38,037 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 08:04:38,056 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 08:04:38,075 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01_inc.i[30915,30928] [2021-06-05 08:04:38,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 08:04:38,150 INFO L208 MainTranslator]: Completed translation [2021-06-05 08:04:38,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:38 WrapperNode [2021-06-05 08:04:38,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 08:04:38,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 08:04:38,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 08:04:38,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 08:04:38,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:38" (1/1) ... [2021-06-05 08:04:38,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:38" (1/1) ... [2021-06-05 08:04:38,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 08:04:38,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 08:04:38,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 08:04:38,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 08:04:38,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:38" (1/1) ... [2021-06-05 08:04:38,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:38" (1/1) ... [2021-06-05 08:04:38,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:38" (1/1) ... [2021-06-05 08:04:38,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:38" (1/1) ... [2021-06-05 08:04:38,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:38" (1/1) ... [2021-06-05 08:04:38,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:38" (1/1) ... [2021-06-05 08:04:38,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:38" (1/1) ... [2021-06-05 08:04:38,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 08:04:38,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 08:04:38,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 08:04:38,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 08:04:38,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 08:04:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-05 08:04:38,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-05 08:04:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 08:04:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 08:04:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 08:04:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 08:04:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 08:04:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 08:04:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 08:04:38,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 08:04:38,337 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 08:04:38,847 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 08:04:38,848 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-06-05 08:04:38,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:04:38 BoogieIcfgContainer [2021-06-05 08:04:38,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 08:04:38,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 08:04:38,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 08:04:38,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 08:04:38,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:04:37" (1/3) ... [2021-06-05 08:04:38,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71eb7c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:04:38, skipping insertion in model container [2021-06-05 08:04:38,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:04:38" (2/3) ... [2021-06-05 08:04:38,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71eb7c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:04:38, skipping insertion in model container [2021-06-05 08:04:38,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:04:38" (3/3) ... [2021-06-05 08:04:38,856 INFO L111 eAbstractionObserver]: Analyzing ICFG 01_inc.i [2021-06-05 08:04:38,861 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 08:04:38,861 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 08:04:38,862 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 08:04:38,862 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 08:04:38,879 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,879 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,879 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,880 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,880 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,880 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,880 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,880 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,880 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,881 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,881 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,881 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,881 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,881 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,881 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,882 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,882 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,882 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,882 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,882 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,882 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,883 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,883 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,883 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,883 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,883 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,884 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,884 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,884 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,884 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,884 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,884 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,885 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,885 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,885 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,885 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,885 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,886 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,887 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,888 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,888 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,888 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,888 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,888 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,889 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:38,890 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 08:04:38,910 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 08:04:38,927 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 08:04:38,927 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 08:04:38,927 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 08:04:38,928 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 08:04:38,928 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 08:04:38,928 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 08:04:38,928 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 08:04:38,928 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 08:04:38,936 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 40 transitions, 85 flow [2021-06-05 08:04:38,952 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 204 states, 199 states have (on average 1.9447236180904524) internal successors, (387), 203 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:38,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 204 states, 199 states have (on average 1.9447236180904524) internal successors, (387), 203 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:38,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 08:04:38,962 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:38,963 INFO L521 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] [2021-06-05 08:04:38,963 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:38,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:38,967 INFO L82 PathProgramCache]: Analyzing trace with hash -36362697, now seen corresponding path program 1 times [2021-06-05 08:04:38,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:38,976 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517403685] [2021-06-05 08:04:38,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:04:39,316 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:39,316 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517403685] [2021-06-05 08:04:39,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517403685] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:39,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:39,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 08:04:39,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229069522] [2021-06-05 08:04:39,321 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 08:04:39,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:39,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 08:04:39,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 08:04:39,338 INFO L87 Difference]: Start difference. First operand has 204 states, 199 states have (on average 1.9447236180904524) internal successors, (387), 203 states have internal predecessors, (387), 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 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:39,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:39,436 INFO L93 Difference]: Finished difference Result 105 states and 174 transitions. [2021-06-05 08:04:39,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 08:04:39,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2021-06-05 08:04:39,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:39,443 INFO L225 Difference]: With dead ends: 105 [2021-06-05 08:04:39,443 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 08:04:39,444 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 53.7ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 08:04:39,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 08:04:39,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 08:04:39,462 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) [2021-06-05 08:04:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 08:04:39,463 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-06-05 08:04:39,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:39,463 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 08:04:39,463 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:39,464 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 08:04:39,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 08:04:39,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 08:04:39,464 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 08:04:39,466 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 08:04:39,468 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 08:04:39,468 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 08:04:39,468 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 08:04:39,468 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 08:04:39,468 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 08:04:39,470 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 08:04:39,471 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 08:04:39,471 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 08:04:39,472 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 40 transitions, 85 flow [2021-06-05 08:04:39,477 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 204 states, 199 states have (on average 1.9447236180904524) internal successors, (387), 203 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand has 204 states, 199 states have (on average 1.9447236180904524) internal successors, (387), 203 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:39,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-06-05 08:04:39,480 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:39,480 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:39,480 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 08:04:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:39,481 INFO L82 PathProgramCache]: Analyzing trace with hash -455621246, now seen corresponding path program 1 times [2021-06-05 08:04:39,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:39,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667334678] [2021-06-05 08:04:39,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 08:04:39,510 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 08:04:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 08:04:39,521 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 08:04:39,538 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 08:04:39,538 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 08:04:39,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 08:04:39,539 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 08:04:39,539 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 08:04:39,539 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-05 08:04:39,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,556 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,556 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,556 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,558 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,558 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,559 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:39,564 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 08:04:39,565 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 08:04:39,566 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 08:04:39,566 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 08:04:39,566 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 08:04:39,567 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 08:04:39,567 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 08:04:39,567 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 08:04:39,567 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 08:04:39,567 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 08:04:39,569 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 55 transitions, 122 flow [2021-06-05 08:04:39,660 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2738 states, 2727 states have (on average 2.93986065273194) internal successors, (8017), 2737 states have internal predecessors, (8017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:39,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 2738 states, 2727 states have (on average 2.93986065273194) internal successors, (8017), 2737 states have internal predecessors, (8017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:39,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 08:04:39,669 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:39,669 INFO L521 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] [2021-06-05 08:04:39,669 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:39,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:39,670 INFO L82 PathProgramCache]: Analyzing trace with hash -214364932, now seen corresponding path program 1 times [2021-06-05 08:04:39,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:39,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782216194] [2021-06-05 08:04:39,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:39,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:04:39,761 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:39,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782216194] [2021-06-05 08:04:39,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782216194] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:39,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:39,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 08:04:39,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744328091] [2021-06-05 08:04:39,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 08:04:39,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:39,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 08:04:39,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 08:04:39,772 INFO L87 Difference]: Start difference. First operand has 2738 states, 2727 states have (on average 2.93986065273194) internal successors, (8017), 2737 states have internal predecessors, (8017), 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 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:39,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:39,938 INFO L93 Difference]: Finished difference Result 1950 states and 5172 transitions. [2021-06-05 08:04:39,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 08:04:39,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2021-06-05 08:04:39,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:39,960 INFO L225 Difference]: With dead ends: 1950 [2021-06-05 08:04:39,961 INFO L226 Difference]: Without dead ends: 1534 [2021-06-05 08:04:39,961 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 53.9ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 08:04:39,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2021-06-05 08:04:40,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1246. [2021-06-05 08:04:40,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1243 states have (on average 2.6291230893000805) internal successors, (3268), 1245 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:40,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 3268 transitions. [2021-06-05 08:04:40,056 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 3268 transitions. Word has length 25 [2021-06-05 08:04:40,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:40,057 INFO L482 AbstractCegarLoop]: Abstraction has 1246 states and 3268 transitions. [2021-06-05 08:04:40,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:40,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 3268 transitions. [2021-06-05 08:04:40,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-06-05 08:04:40,059 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:40,059 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:40,059 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 08:04:40,060 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:40,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:40,060 INFO L82 PathProgramCache]: Analyzing trace with hash -2012577590, now seen corresponding path program 1 times [2021-06-05 08:04:40,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:40,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734205643] [2021-06-05 08:04:40,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:04:40,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:40,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734205643] [2021-06-05 08:04:40,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734205643] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:40,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:40,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 08:04:40,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98223351] [2021-06-05 08:04:40,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 08:04:40,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:40,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 08:04:40,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 08:04:40,204 INFO L87 Difference]: Start difference. First operand 1246 states and 3268 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:40,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:40,328 INFO L93 Difference]: Finished difference Result 1598 states and 4080 transitions. [2021-06-05 08:04:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 08:04:40,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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 32 [2021-06-05 08:04:40,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:40,335 INFO L225 Difference]: With dead ends: 1598 [2021-06-05 08:04:40,335 INFO L226 Difference]: Without dead ends: 1494 [2021-06-05 08:04:40,336 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 56.1ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 08:04:40,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2021-06-05 08:04:40,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1206. [2021-06-05 08:04:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1203 states have (on average 2.594347464671654) internal successors, (3121), 1205 states have internal predecessors, (3121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:40,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 3121 transitions. [2021-06-05 08:04:40,367 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 3121 transitions. Word has length 32 [2021-06-05 08:04:40,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:40,367 INFO L482 AbstractCegarLoop]: Abstraction has 1206 states and 3121 transitions. [2021-06-05 08:04:40,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:40,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 3121 transitions. [2021-06-05 08:04:40,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-06-05 08:04:40,370 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:40,370 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:40,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 08:04:40,370 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:40,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:40,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1061752117, now seen corresponding path program 1 times [2021-06-05 08:04:40,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:40,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991146142] [2021-06-05 08:04:40,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:40,469 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:04:40,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:40,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991146142] [2021-06-05 08:04:40,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991146142] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:40,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:40,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 08:04:40,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287699858] [2021-06-05 08:04:40,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 08:04:40,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:40,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 08:04:40,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 08:04:40,472 INFO L87 Difference]: Start difference. First operand 1206 states and 3121 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:40,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:40,596 INFO L93 Difference]: Finished difference Result 1806 states and 4662 transitions. [2021-06-05 08:04:40,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 08:04:40,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 38 [2021-06-05 08:04:40,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:40,604 INFO L225 Difference]: With dead ends: 1806 [2021-06-05 08:04:40,604 INFO L226 Difference]: Without dead ends: 1606 [2021-06-05 08:04:40,605 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 68.6ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-06-05 08:04:40,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-06-05 08:04:40,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1230. [2021-06-05 08:04:40,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1227 states have (on average 2.58679706601467) internal successors, (3174), 1229 states have internal predecessors, (3174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 3174 transitions. [2021-06-05 08:04:40,639 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 3174 transitions. Word has length 38 [2021-06-05 08:04:40,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:40,639 INFO L482 AbstractCegarLoop]: Abstraction has 1230 states and 3174 transitions. [2021-06-05 08:04:40,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:40,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 3174 transitions. [2021-06-05 08:04:40,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-06-05 08:04:40,645 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:40,645 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:40,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 08:04:40,646 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:40,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:40,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1077000845, now seen corresponding path program 1 times [2021-06-05 08:04:40,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:40,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577026288] [2021-06-05 08:04:40,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:40,806 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:04:40,807 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:40,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577026288] [2021-06-05 08:04:40,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577026288] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:40,807 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:40,807 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 08:04:40,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795132653] [2021-06-05 08:04:40,808 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 08:04:40,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:40,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 08:04:40,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-05 08:04:40,809 INFO L87 Difference]: Start difference. First operand 1230 states and 3174 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:40,954 INFO L93 Difference]: Finished difference Result 1502 states and 3780 transitions. [2021-06-05 08:04:40,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 08:04:40,955 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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 38 [2021-06-05 08:04:40,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:40,960 INFO L225 Difference]: With dead ends: 1502 [2021-06-05 08:04:40,960 INFO L226 Difference]: Without dead ends: 1052 [2021-06-05 08:04:40,960 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 87.8ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 08:04:40,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2021-06-05 08:04:40,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 908. [2021-06-05 08:04:40,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 905 states have (on average 2.5425414364640884) internal successors, (2301), 907 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:40,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 2301 transitions. [2021-06-05 08:04:40,981 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 2301 transitions. Word has length 38 [2021-06-05 08:04:40,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:40,982 INFO L482 AbstractCegarLoop]: Abstraction has 908 states and 2301 transitions. [2021-06-05 08:04:40,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:40,982 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 2301 transitions. [2021-06-05 08:04:40,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-06-05 08:04:40,985 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:40,985 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:40,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 08:04:40,986 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:40,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:40,986 INFO L82 PathProgramCache]: Analyzing trace with hash 662860237, now seen corresponding path program 2 times [2021-06-05 08:04:40,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:40,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893760740] [2021-06-05 08:04:40,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:04:41,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:41,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893760740] [2021-06-05 08:04:41,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893760740] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:41,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:41,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 08:04:41,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3969772] [2021-06-05 08:04:41,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 08:04:41,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:41,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 08:04:41,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-05 08:04:41,114 INFO L87 Difference]: Start difference. First operand 908 states and 2301 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:41,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:41,213 INFO L93 Difference]: Finished difference Result 964 states and 2382 transitions. [2021-06-05 08:04:41,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 08:04:41,214 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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 38 [2021-06-05 08:04:41,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:41,216 INFO L225 Difference]: With dead ends: 964 [2021-06-05 08:04:41,216 INFO L226 Difference]: Without dead ends: 431 [2021-06-05 08:04:41,217 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 84.3ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 08:04:41,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-06-05 08:04:41,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2021-06-05 08:04:41,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 429 states have (on average 2.247086247086247) internal successors, (964), 430 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:41,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 964 transitions. [2021-06-05 08:04:41,226 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 964 transitions. Word has length 38 [2021-06-05 08:04:41,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:41,227 INFO L482 AbstractCegarLoop]: Abstraction has 431 states and 964 transitions. [2021-06-05 08:04:41,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:41,227 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 964 transitions. [2021-06-05 08:04:41,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-06-05 08:04:41,228 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:41,228 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:41,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 08:04:41,228 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:41,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:41,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1825505845, now seen corresponding path program 3 times [2021-06-05 08:04:41,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:41,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004880419] [2021-06-05 08:04:41,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:41,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:04:41,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:41,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004880419] [2021-06-05 08:04:41,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004880419] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:41,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:41,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 08:04:41,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211523554] [2021-06-05 08:04:41,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 08:04:41,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:41,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 08:04:41,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 08:04:41,326 INFO L87 Difference]: Start difference. First operand 431 states and 964 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:41,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:41,378 INFO L93 Difference]: Finished difference Result 351 states and 750 transitions. [2021-06-05 08:04:41,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 08:04:41,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 38 [2021-06-05 08:04:41,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:41,380 INFO L225 Difference]: With dead ends: 351 [2021-06-05 08:04:41,380 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 08:04:41,380 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 55.4ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-06-05 08:04:41,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 08:04:41,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 08:04:41,381 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) [2021-06-05 08:04:41,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 08:04:41,381 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2021-06-05 08:04:41,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:41,381 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 08:04:41,381 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:41,381 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 08:04:41,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 08:04:41,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 08:04:41,382 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 08:04:41,383 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 08:04:41,385 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 08:04:41,385 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 08:04:41,385 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 08:04:41,386 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 08:04:41,388 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 08:04:41,388 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 08:04:41,388 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 08:04:41,388 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 08:04:41,393 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 55 transitions, 122 flow [2021-06-05 08:04:41,470 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2738 states, 2727 states have (on average 2.93986065273194) internal successors, (8017), 2737 states have internal predecessors, (8017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:41,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 2738 states, 2727 states have (on average 2.93986065273194) internal successors, (8017), 2737 states have internal predecessors, (8017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:41,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 08:04:41,478 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:41,478 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:41,478 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 08:04:41,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:41,478 INFO L82 PathProgramCache]: Analyzing trace with hash 866103220, now seen corresponding path program 1 times [2021-06-05 08:04:41,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:41,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365737095] [2021-06-05 08:04:41,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 08:04:41,502 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 08:04:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 08:04:41,507 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 08:04:41,511 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 08:04:41,536 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 08:04:41,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 08:04:41,537 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 08:04:41,537 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 08:04:41,537 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-06-05 08:04:41,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,558 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,558 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,558 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,558 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,559 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,559 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,559 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,559 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,559 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,559 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,566 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,566 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,567 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,567 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:04:41,570 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 08:04:41,570 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 08:04:41,571 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 08:04:41,571 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 08:04:41,571 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 08:04:41,571 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 08:04:41,571 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 08:04:41,572 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 08:04:41,572 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 08:04:41,572 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 08:04:41,575 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 70 transitions, 161 flow [2021-06-05 08:04:44,558 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38214 states, 38191 states have (on average 3.935822575999581) internal successors, (150313), 38213 states have internal predecessors, (150313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:44,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 38214 states, 38191 states have (on average 3.935822575999581) internal successors, (150313), 38213 states have internal predecessors, (150313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:44,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 08:04:44,634 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:44,635 INFO L521 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] [2021-06-05 08:04:44,635 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:44,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:44,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1108199856, now seen corresponding path program 1 times [2021-06-05 08:04:44,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:44,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192983131] [2021-06-05 08:04:44,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:44,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:04:44,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:44,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192983131] [2021-06-05 08:04:44,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192983131] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:44,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:44,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 08:04:44,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744491079] [2021-06-05 08:04:44,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 08:04:44,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:44,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 08:04:44,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 08:04:44,919 INFO L87 Difference]: Start difference. First operand has 38214 states, 38191 states have (on average 3.935822575999581) internal successors, (150313), 38213 states have internal predecessors, (150313), 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 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:45,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:45,469 INFO L93 Difference]: Finished difference Result 33462 states and 122445 transitions. [2021-06-05 08:04:45,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 08:04:45,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2021-06-05 08:04:45,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:45,654 INFO L225 Difference]: With dead ends: 33462 [2021-06-05 08:04:45,654 INFO L226 Difference]: Without dead ends: 30950 [2021-06-05 08:04:45,656 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 54.4ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 08:04:46,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30950 states. [2021-06-05 08:04:46,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30950 to 22076. [2021-06-05 08:04:46,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22076 states, 22069 states have (on average 3.6877973628166205) internal successors, (81386), 22075 states have internal predecessors, (81386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:46,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22076 states to 22076 states and 81386 transitions. [2021-06-05 08:04:46,947 INFO L78 Accepts]: Start accepts. Automaton has 22076 states and 81386 transitions. Word has length 25 [2021-06-05 08:04:46,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:46,947 INFO L482 AbstractCegarLoop]: Abstraction has 22076 states and 81386 transitions. [2021-06-05 08:04:46,947 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:46,947 INFO L276 IsEmpty]: Start isEmpty. Operand 22076 states and 81386 transitions. [2021-06-05 08:04:46,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-06-05 08:04:46,948 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:46,948 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:46,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 08:04:46,948 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:46,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:46,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1989381898, now seen corresponding path program 1 times [2021-06-05 08:04:46,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:46,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334949938] [2021-06-05 08:04:46,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:47,001 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:04:47,001 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:47,001 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334949938] [2021-06-05 08:04:47,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334949938] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:47,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:47,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 08:04:47,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827684788] [2021-06-05 08:04:47,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 08:04:47,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:47,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 08:04:47,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 08:04:47,003 INFO L87 Difference]: Start difference. First operand 22076 states and 81386 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:47,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:47,442 INFO L93 Difference]: Finished difference Result 34494 states and 124471 transitions. [2021-06-05 08:04:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 08:04:47,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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 32 [2021-06-05 08:04:47,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:47,589 INFO L225 Difference]: With dead ends: 34494 [2021-06-05 08:04:47,589 INFO L226 Difference]: Without dead ends: 33926 [2021-06-05 08:04:47,590 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 38.0ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 08:04:47,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33926 states. [2021-06-05 08:04:48,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33926 to 24332. [2021-06-05 08:04:48,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24332 states, 24325 states have (on average 3.6694347379239467) internal successors, (89259), 24331 states have internal predecessors, (89259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24332 states to 24332 states and 89259 transitions. [2021-06-05 08:04:48,765 INFO L78 Accepts]: Start accepts. Automaton has 24332 states and 89259 transitions. Word has length 32 [2021-06-05 08:04:48,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:48,766 INFO L482 AbstractCegarLoop]: Abstraction has 24332 states and 89259 transitions. [2021-06-05 08:04:48,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:48,766 INFO L276 IsEmpty]: Start isEmpty. Operand 24332 states and 89259 transitions. [2021-06-05 08:04:48,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-06-05 08:04:48,768 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:48,768 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:48,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 08:04:48,768 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:48,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:48,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1124329205, now seen corresponding path program 1 times [2021-06-05 08:04:48,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:48,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189192570] [2021-06-05 08:04:48,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:48,867 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:04:48,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:48,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189192570] [2021-06-05 08:04:48,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189192570] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:04:48,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397074866] [2021-06-05 08:04:48,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 08:04:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:48,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-05 08:04:48,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 08:04:49,103 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:04:49,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397074866] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:04:49,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 08:04:49,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2021-06-05 08:04:49,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775234733] [2021-06-05 08:04:49,104 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 08:04:49,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:49,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 08:04:49,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 08:04:49,105 INFO L87 Difference]: Start difference. First operand 24332 states and 89259 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:49,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:49,803 INFO L93 Difference]: Finished difference Result 39304 states and 136775 transitions. [2021-06-05 08:04:49,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 08:04:49,804 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 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 38 [2021-06-05 08:04:49,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:49,945 INFO L225 Difference]: With dead ends: 39304 [2021-06-05 08:04:49,946 INFO L226 Difference]: Without dead ends: 37280 [2021-06-05 08:04:49,946 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 122.1ms TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-06-05 08:04:50,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37280 states. [2021-06-05 08:04:50,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37280 to 25079. [2021-06-05 08:04:50,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25079 states, 25061 states have (on average 3.5584374127129803) internal successors, (89178), 25078 states have internal predecessors, (89178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:51,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25079 states to 25079 states and 89178 transitions. [2021-06-05 08:04:51,150 INFO L78 Accepts]: Start accepts. Automaton has 25079 states and 89178 transitions. Word has length 38 [2021-06-05 08:04:51,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:51,150 INFO L482 AbstractCegarLoop]: Abstraction has 25079 states and 89178 transitions. [2021-06-05 08:04:51,151 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:51,151 INFO L276 IsEmpty]: Start isEmpty. Operand 25079 states and 89178 transitions. [2021-06-05 08:04:51,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-06-05 08:04:51,153 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:51,153 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:51,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-05 08:04:51,354 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:51,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:51,354 INFO L82 PathProgramCache]: Analyzing trace with hash -248488505, now seen corresponding path program 1 times [2021-06-05 08:04:51,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:51,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966602770] [2021-06-05 08:04:51,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:51,444 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:04:51,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:51,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966602770] [2021-06-05 08:04:51,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966602770] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:51,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:51,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 08:04:51,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537342893] [2021-06-05 08:04:51,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 08:04:51,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:51,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 08:04:51,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 08:04:51,446 INFO L87 Difference]: Start difference. First operand 25079 states and 89178 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:51,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:51,746 INFO L93 Difference]: Finished difference Result 42451 states and 149125 transitions. [2021-06-05 08:04:51,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 08:04:51,747 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2021-06-05 08:04:51,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:51,858 INFO L225 Difference]: With dead ends: 42451 [2021-06-05 08:04:51,858 INFO L226 Difference]: Without dead ends: 41555 [2021-06-05 08:04:51,859 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 51.3ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-06-05 08:04:52,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41555 states. [2021-06-05 08:04:52,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41555 to 25859. [2021-06-05 08:04:52,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25859 states, 25841 states have (on average 3.5523780039472155) internal successors, (91797), 25858 states have internal predecessors, (91797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:52,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25859 states to 25859 states and 91797 transitions. [2021-06-05 08:04:52,880 INFO L78 Accepts]: Start accepts. Automaton has 25859 states and 91797 transitions. Word has length 38 [2021-06-05 08:04:52,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:52,880 INFO L482 AbstractCegarLoop]: Abstraction has 25859 states and 91797 transitions. [2021-06-05 08:04:52,880 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:52,880 INFO L276 IsEmpty]: Start isEmpty. Operand 25859 states and 91797 transitions. [2021-06-05 08:04:52,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-06-05 08:04:52,883 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:52,883 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:52,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 08:04:52,884 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:52,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:52,884 INFO L82 PathProgramCache]: Analyzing trace with hash 574977161, now seen corresponding path program 2 times [2021-06-05 08:04:52,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:52,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924310097] [2021-06-05 08:04:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:52,962 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:04:52,962 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:52,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924310097] [2021-06-05 08:04:52,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924310097] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:52,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:52,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 08:04:52,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682558737] [2021-06-05 08:04:52,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 08:04:52,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:52,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 08:04:52,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-05 08:04:52,964 INFO L87 Difference]: Start difference. First operand 25859 states and 91797 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:53,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:53,332 INFO L93 Difference]: Finished difference Result 38116 states and 131235 transitions. [2021-06-05 08:04:53,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 08:04:53,332 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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 38 [2021-06-05 08:04:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:53,428 INFO L225 Difference]: With dead ends: 38116 [2021-06-05 08:04:53,428 INFO L226 Difference]: Without dead ends: 36684 [2021-06-05 08:04:53,429 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 74.9ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 08:04:53,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36684 states. [2021-06-05 08:04:54,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36684 to 23495. [2021-06-05 08:04:54,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23495 states, 23479 states have (on average 3.507815494697389) internal successors, (82360), 23494 states have internal predecessors, (82360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:54,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23495 states to 23495 states and 82360 transitions. [2021-06-05 08:04:54,352 INFO L78 Accepts]: Start accepts. Automaton has 23495 states and 82360 transitions. Word has length 38 [2021-06-05 08:04:54,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:54,352 INFO L482 AbstractCegarLoop]: Abstraction has 23495 states and 82360 transitions. [2021-06-05 08:04:54,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:54,353 INFO L276 IsEmpty]: Start isEmpty. Operand 23495 states and 82360 transitions. [2021-06-05 08:04:54,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-06-05 08:04:54,356 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:54,356 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:54,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 08:04:54,356 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:54,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:54,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1722706425, now seen corresponding path program 3 times [2021-06-05 08:04:54,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:54,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273143229] [2021-06-05 08:04:54,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:54,414 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:04:54,414 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:54,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273143229] [2021-06-05 08:04:54,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273143229] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:54,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:54,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 08:04:54,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123632449] [2021-06-05 08:04:54,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 08:04:54,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:54,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 08:04:54,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 08:04:54,416 INFO L87 Difference]: Start difference. First operand 23495 states and 82360 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:55,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:55,024 INFO L93 Difference]: Finished difference Result 37872 states and 131092 transitions. [2021-06-05 08:04:55,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 08:04:55,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 38 [2021-06-05 08:04:55,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:55,173 INFO L225 Difference]: With dead ends: 37872 [2021-06-05 08:04:55,174 INFO L226 Difference]: Without dead ends: 37280 [2021-06-05 08:04:55,174 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 45.9ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-06-05 08:04:55,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37280 states. [2021-06-05 08:04:55,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37280 to 21015. [2021-06-05 08:04:55,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21015 states, 20999 states have (on average 3.5098338016096005) internal successors, (73703), 21014 states have internal predecessors, (73703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:55,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21015 states to 21015 states and 73703 transitions. [2021-06-05 08:04:55,674 INFO L78 Accepts]: Start accepts. Automaton has 21015 states and 73703 transitions. Word has length 38 [2021-06-05 08:04:55,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:55,674 INFO L482 AbstractCegarLoop]: Abstraction has 21015 states and 73703 transitions. [2021-06-05 08:04:55,674 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:55,674 INFO L276 IsEmpty]: Start isEmpty. Operand 21015 states and 73703 transitions. [2021-06-05 08:04:55,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-06-05 08:04:55,678 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:55,678 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:55,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 08:04:55,678 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:55,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:55,678 INFO L82 PathProgramCache]: Analyzing trace with hash 257472785, now seen corresponding path program 1 times [2021-06-05 08:04:55,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:55,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077987982] [2021-06-05 08:04:55,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:55,741 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 08:04:55,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:55,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077987982] [2021-06-05 08:04:55,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077987982] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:55,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:55,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 08:04:55,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81548984] [2021-06-05 08:04:55,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 08:04:55,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:55,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 08:04:55,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 08:04:55,742 INFO L87 Difference]: Start difference. First operand 21015 states and 73703 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:56,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:56,220 INFO L93 Difference]: Finished difference Result 33279 states and 115570 transitions. [2021-06-05 08:04:56,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 08:04:56,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 39 [2021-06-05 08:04:56,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:56,312 INFO L225 Difference]: With dead ends: 33279 [2021-06-05 08:04:56,312 INFO L226 Difference]: Without dead ends: 32807 [2021-06-05 08:04:56,313 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 36.2ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 08:04:56,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32807 states. [2021-06-05 08:04:56,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32807 to 23047. [2021-06-05 08:04:56,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23047 states, 23031 states have (on average 3.5038426468672657) internal successors, (80697), 23046 states have internal predecessors, (80697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:57,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23047 states to 23047 states and 80697 transitions. [2021-06-05 08:04:57,046 INFO L78 Accepts]: Start accepts. Automaton has 23047 states and 80697 transitions. Word has length 39 [2021-06-05 08:04:57,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:57,047 INFO L482 AbstractCegarLoop]: Abstraction has 23047 states and 80697 transitions. [2021-06-05 08:04:57,047 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:57,047 INFO L276 IsEmpty]: Start isEmpty. Operand 23047 states and 80697 transitions. [2021-06-05 08:04:57,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 08:04:57,058 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:57,058 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:57,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 08:04:57,058 INFO L430 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:57,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:57,059 INFO L82 PathProgramCache]: Analyzing trace with hash 142603916, now seen corresponding path program 1 times [2021-06-05 08:04:57,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:57,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943756268] [2021-06-05 08:04:57,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:57,133 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:04:57,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:57,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943756268] [2021-06-05 08:04:57,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943756268] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:04:57,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350759203] [2021-06-05 08:04:57,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 08:04:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:57,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-05 08:04:57,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 08:04:57,361 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:04:57,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350759203] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:04:57,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 08:04:57,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2021-06-05 08:04:57,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642128402] [2021-06-05 08:04:57,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 08:04:57,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:57,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 08:04:57,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 08:04:57,363 INFO L87 Difference]: Start difference. First operand 23047 states and 80697 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:57,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:57,823 INFO L93 Difference]: Finished difference Result 36590 states and 125569 transitions. [2021-06-05 08:04:57,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 08:04:57,824 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 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 45 [2021-06-05 08:04:57,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:57,904 INFO L225 Difference]: With dead ends: 36590 [2021-06-05 08:04:57,904 INFO L226 Difference]: Without dead ends: 34760 [2021-06-05 08:04:57,904 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 110.0ms TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-06-05 08:04:58,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34760 states. [2021-06-05 08:04:58,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34760 to 23677. [2021-06-05 08:04:58,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23677 states, 23661 states have (on average 3.493850640294155) internal successors, (82668), 23676 states have internal predecessors, (82668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:58,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23677 states to 23677 states and 82668 transitions. [2021-06-05 08:04:58,681 INFO L78 Accepts]: Start accepts. Automaton has 23677 states and 82668 transitions. Word has length 45 [2021-06-05 08:04:58,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:04:58,682 INFO L482 AbstractCegarLoop]: Abstraction has 23677 states and 82668 transitions. [2021-06-05 08:04:58,682 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:58,682 INFO L276 IsEmpty]: Start isEmpty. Operand 23677 states and 82668 transitions. [2021-06-05 08:04:58,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 08:04:58,691 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:04:58,691 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:04:58,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-05 08:04:58,899 INFO L430 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:04:58,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:04:58,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1682666992, now seen corresponding path program 2 times [2021-06-05 08:04:58,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:04:58,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730427166] [2021-06-05 08:04:58,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:04:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:04:58,971 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:04:58,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:04:58,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730427166] [2021-06-05 08:04:58,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730427166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:04:58,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:04:58,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 08:04:58,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791834903] [2021-06-05 08:04:58,972 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 08:04:58,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:04:58,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 08:04:58,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 08:04:58,974 INFO L87 Difference]: Start difference. First operand 23677 states and 82668 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:04:59,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:04:59,300 INFO L93 Difference]: Finished difference Result 38517 states and 133005 transitions. [2021-06-05 08:04:59,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 08:04:59,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-05 08:04:59,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:04:59,403 INFO L225 Difference]: With dead ends: 38517 [2021-06-05 08:04:59,404 INFO L226 Difference]: Without dead ends: 37453 [2021-06-05 08:04:59,404 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 44.0ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-06-05 08:04:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37453 states. [2021-06-05 08:05:00,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37453 to 24693. [2021-06-05 08:05:00,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24693 states, 24677 states have (on average 3.4823114641163837) internal successors, (85933), 24692 states have internal predecessors, (85933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:00,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24693 states to 24693 states and 85933 transitions. [2021-06-05 08:05:00,292 INFO L78 Accepts]: Start accepts. Automaton has 24693 states and 85933 transitions. Word has length 45 [2021-06-05 08:05:00,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:00,292 INFO L482 AbstractCegarLoop]: Abstraction has 24693 states and 85933 transitions. [2021-06-05 08:05:00,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:00,292 INFO L276 IsEmpty]: Start isEmpty. Operand 24693 states and 85933 transitions. [2021-06-05 08:05:00,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 08:05:00,300 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:00,300 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:00,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 08:05:00,300 INFO L430 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:00,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:00,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1927008202, now seen corresponding path program 3 times [2021-06-05 08:05:00,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:00,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391547623] [2021-06-05 08:05:00,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:00,379 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 08:05:00,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:00,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391547623] [2021-06-05 08:05:00,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391547623] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:05:00,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:05:00,380 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 08:05:00,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88579368] [2021-06-05 08:05:00,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 08:05:00,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:00,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 08:05:00,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 08:05:00,381 INFO L87 Difference]: Start difference. First operand 24693 states and 85933 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:00,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:00,881 INFO L93 Difference]: Finished difference Result 43564 states and 146611 transitions. [2021-06-05 08:05:00,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 08:05:00,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-05 08:05:00,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:00,966 INFO L225 Difference]: With dead ends: 43564 [2021-06-05 08:05:00,966 INFO L226 Difference]: Without dead ends: 41516 [2021-06-05 08:05:00,966 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 151.8ms TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-06-05 08:05:01,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41516 states. [2021-06-05 08:05:01,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41516 to 20885. [2021-06-05 08:05:01,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20885 states, 20871 states have (on average 3.4191461836998704) internal successors, (71361), 20884 states have internal predecessors, (71361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:01,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20885 states to 20885 states and 71361 transitions. [2021-06-05 08:05:01,773 INFO L78 Accepts]: Start accepts. Automaton has 20885 states and 71361 transitions. Word has length 45 [2021-06-05 08:05:01,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:01,773 INFO L482 AbstractCegarLoop]: Abstraction has 20885 states and 71361 transitions. [2021-06-05 08:05:01,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:01,774 INFO L276 IsEmpty]: Start isEmpty. Operand 20885 states and 71361 transitions. [2021-06-05 08:05:01,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 08:05:01,781 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:01,781 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:01,782 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 08:05:01,782 INFO L430 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:01,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:01,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1725926134, now seen corresponding path program 4 times [2021-06-05 08:05:01,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:01,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592846813] [2021-06-05 08:05:01,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:01,837 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 08:05:01,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:01,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592846813] [2021-06-05 08:05:01,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592846813] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:05:01,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:05:01,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 08:05:01,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293811301] [2021-06-05 08:05:01,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 08:05:01,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:01,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 08:05:01,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 08:05:01,839 INFO L87 Difference]: Start difference. First operand 20885 states and 71361 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:02,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:02,088 INFO L93 Difference]: Finished difference Result 33461 states and 113437 transitions. [2021-06-05 08:05:02,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 08:05:02,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-05 08:05:02,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:02,157 INFO L225 Difference]: With dead ends: 33461 [2021-06-05 08:05:02,157 INFO L226 Difference]: Without dead ends: 33029 [2021-06-05 08:05:02,157 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 45.7ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-06-05 08:05:02,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33029 states. [2021-06-05 08:05:02,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33029 to 19669. [2021-06-05 08:05:02,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19669 states, 19655 states have (on average 3.4072246247774105) internal successors, (66969), 19668 states have internal predecessors, (66969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:02,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19669 states to 19669 states and 66969 transitions. [2021-06-05 08:05:02,953 INFO L78 Accepts]: Start accepts. Automaton has 19669 states and 66969 transitions. Word has length 45 [2021-06-05 08:05:02,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:02,953 INFO L482 AbstractCegarLoop]: Abstraction has 19669 states and 66969 transitions. [2021-06-05 08:05:02,953 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:02,953 INFO L276 IsEmpty]: Start isEmpty. Operand 19669 states and 66969 transitions. [2021-06-05 08:05:02,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 08:05:02,961 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:02,962 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:02,962 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 08:05:02,962 INFO L430 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:02,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:02,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1415942738, now seen corresponding path program 1 times [2021-06-05 08:05:02,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:02,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311210470] [2021-06-05 08:05:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:03,043 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 08:05:03,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:03,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311210470] [2021-06-05 08:05:03,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311210470] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:05:03,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481418937] [2021-06-05 08:05:03,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 08:05:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:03,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-05 08:05:03,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 08:05:03,255 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 08:05:03,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481418937] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:05:03,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 08:05:03,256 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2021-06-05 08:05:03,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794044260] [2021-06-05 08:05:03,256 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 08:05:03,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:03,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 08:05:03,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 08:05:03,257 INFO L87 Difference]: Start difference. First operand 19669 states and 66969 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:03,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:03,776 INFO L93 Difference]: Finished difference Result 33550 states and 111052 transitions. [2021-06-05 08:05:03,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 08:05:03,777 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-05 08:05:03,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:03,869 INFO L225 Difference]: With dead ends: 33550 [2021-06-05 08:05:03,869 INFO L226 Difference]: Without dead ends: 31320 [2021-06-05 08:05:03,870 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 117.7ms TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-06-05 08:05:04,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31320 states. [2021-06-05 08:05:04,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31320 to 21821. [2021-06-05 08:05:04,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21821 states, 21803 states have (on average 3.360776039994496) internal successors, (73275), 21820 states have internal predecessors, (73275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:04,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21821 states to 21821 states and 73275 transitions. [2021-06-05 08:05:04,597 INFO L78 Accepts]: Start accepts. Automaton has 21821 states and 73275 transitions. Word has length 45 [2021-06-05 08:05:04,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:04,597 INFO L482 AbstractCegarLoop]: Abstraction has 21821 states and 73275 transitions. [2021-06-05 08:05:04,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:04,598 INFO L276 IsEmpty]: Start isEmpty. Operand 21821 states and 73275 transitions. [2021-06-05 08:05:04,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 08:05:04,608 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:04,608 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:04,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 08:05:04,821 INFO L430 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:04,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:04,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1927014318, now seen corresponding path program 2 times [2021-06-05 08:05:04,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:04,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887507335] [2021-06-05 08:05:04,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:04,886 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 08:05:04,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:04,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887507335] [2021-06-05 08:05:04,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887507335] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:05:04,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:05:04,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 08:05:04,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418040729] [2021-06-05 08:05:04,887 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 08:05:04,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:04,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 08:05:04,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 08:05:04,887 INFO L87 Difference]: Start difference. First operand 21821 states and 73275 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:05,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:05,119 INFO L93 Difference]: Finished difference Result 33189 states and 110174 transitions. [2021-06-05 08:05:05,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 08:05:05,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-05 08:05:05,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:05,187 INFO L225 Difference]: With dead ends: 33189 [2021-06-05 08:05:05,187 INFO L226 Difference]: Without dead ends: 31877 [2021-06-05 08:05:05,188 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 46.9ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-06-05 08:05:05,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31877 states. [2021-06-05 08:05:05,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31877 to 23165. [2021-06-05 08:05:05,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23165 states, 23147 states have (on average 3.352961506890742) internal successors, (77611), 23164 states have internal predecessors, (77611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23165 states to 23165 states and 77611 transitions. [2021-06-05 08:05:05,852 INFO L78 Accepts]: Start accepts. Automaton has 23165 states and 77611 transitions. Word has length 45 [2021-06-05 08:05:05,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:05,852 INFO L482 AbstractCegarLoop]: Abstraction has 23165 states and 77611 transitions. [2021-06-05 08:05:05,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:05,852 INFO L276 IsEmpty]: Start isEmpty. Operand 23165 states and 77611 transitions. [2021-06-05 08:05:05,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 08:05:05,861 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:05,861 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:05,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 08:05:05,861 INFO L430 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:05,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:05,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1567987086, now seen corresponding path program 3 times [2021-06-05 08:05:05,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:05,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346910782] [2021-06-05 08:05:05,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:05,946 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 08:05:05,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:05,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346910782] [2021-06-05 08:05:05,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346910782] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:05:05,947 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:05:05,947 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 08:05:05,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973108396] [2021-06-05 08:05:05,948 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 08:05:05,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:05,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 08:05:05,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 08:05:05,949 INFO L87 Difference]: Start difference. First operand 23165 states and 77611 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:06,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:06,438 INFO L93 Difference]: Finished difference Result 40148 states and 132765 transitions. [2021-06-05 08:05:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 08:05:06,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-05 08:05:06,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:06,516 INFO L225 Difference]: With dead ends: 40148 [2021-06-05 08:05:06,517 INFO L226 Difference]: Without dead ends: 37788 [2021-06-05 08:05:06,517 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 159.7ms TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-06-05 08:05:06,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37788 states. [2021-06-05 08:05:07,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37788 to 20661. [2021-06-05 08:05:07,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20661 states, 20645 states have (on average 3.3234197142165174) internal successors, (68612), 20660 states have internal predecessors, (68612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:07,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20661 states to 20661 states and 68612 transitions. [2021-06-05 08:05:07,195 INFO L78 Accepts]: Start accepts. Automaton has 20661 states and 68612 transitions. Word has length 45 [2021-06-05 08:05:07,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:07,195 INFO L482 AbstractCegarLoop]: Abstraction has 20661 states and 68612 transitions. [2021-06-05 08:05:07,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:07,195 INFO L276 IsEmpty]: Start isEmpty. Operand 20661 states and 68612 transitions. [2021-06-05 08:05:07,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 08:05:07,203 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:07,203 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:07,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 08:05:07,204 INFO L430 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:07,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:07,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1288255890, now seen corresponding path program 4 times [2021-06-05 08:05:07,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:07,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864062433] [2021-06-05 08:05:07,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:07,257 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 08:05:07,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:07,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864062433] [2021-06-05 08:05:07,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864062433] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:05:07,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:05:07,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 08:05:07,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150464409] [2021-06-05 08:05:07,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 08:05:07,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:07,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 08:05:07,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 08:05:07,260 INFO L87 Difference]: Start difference. First operand 20661 states and 68612 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:07,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:07,518 INFO L93 Difference]: Finished difference Result 30733 states and 101377 transitions. [2021-06-05 08:05:07,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 08:05:07,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-05 08:05:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:07,585 INFO L225 Difference]: With dead ends: 30733 [2021-06-05 08:05:07,585 INFO L226 Difference]: Without dead ends: 29965 [2021-06-05 08:05:07,585 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 45.1ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-06-05 08:05:07,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29965 states. [2021-06-05 08:05:08,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29965 to 19237. [2021-06-05 08:05:08,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19237 states, 19221 states have (on average 3.3137713958691015) internal successors, (63694), 19236 states have internal predecessors, (63694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:08,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19237 states to 19237 states and 63694 transitions. [2021-06-05 08:05:08,316 INFO L78 Accepts]: Start accepts. Automaton has 19237 states and 63694 transitions. Word has length 45 [2021-06-05 08:05:08,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:08,316 INFO L482 AbstractCegarLoop]: Abstraction has 19237 states and 63694 transitions. [2021-06-05 08:05:08,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:08,317 INFO L276 IsEmpty]: Start isEmpty. Operand 19237 states and 63694 transitions. [2021-06-05 08:05:08,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 08:05:08,335 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:08,335 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:08,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 08:05:08,335 INFO L430 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:08,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:08,336 INFO L82 PathProgramCache]: Analyzing trace with hash 2104917327, now seen corresponding path program 1 times [2021-06-05 08:05:08,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:08,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660177567] [2021-06-05 08:05:08,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:08,451 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:05:08,451 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:08,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660177567] [2021-06-05 08:05:08,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660177567] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:05:08,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139975427] [2021-06-05 08:05:08,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 08:05:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:08,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 08:05:08,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 08:05:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 08:05:08,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139975427] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:05:08,613 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 08:05:08,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2021-06-05 08:05:08,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940481462] [2021-06-05 08:05:08,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 08:05:08,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:08,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 08:05:08,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-06-05 08:05:08,616 INFO L87 Difference]: Start difference. First operand 19237 states and 63694 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:08,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:08,666 INFO L93 Difference]: Finished difference Result 8765 states and 28783 transitions. [2021-06-05 08:05:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 08:05:08,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 08:05:08,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:08,686 INFO L225 Difference]: With dead ends: 8765 [2021-06-05 08:05:08,686 INFO L226 Difference]: Without dead ends: 8765 [2021-06-05 08:05:08,687 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 78.2ms TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-06-05 08:05:08,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8765 states. [2021-06-05 08:05:08,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8765 to 8765. [2021-06-05 08:05:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8765 states, 8758 states have (on average 3.286480931719571) internal successors, (28783), 8764 states have internal predecessors, (28783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:08,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8765 states to 8765 states and 28783 transitions. [2021-06-05 08:05:08,856 INFO L78 Accepts]: Start accepts. Automaton has 8765 states and 28783 transitions. Word has length 51 [2021-06-05 08:05:08,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:08,856 INFO L482 AbstractCegarLoop]: Abstraction has 8765 states and 28783 transitions. [2021-06-05 08:05:08,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:08,857 INFO L276 IsEmpty]: Start isEmpty. Operand 8765 states and 28783 transitions. [2021-06-05 08:05:08,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 08:05:08,866 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:08,866 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:09,067 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 08:05:09,067 INFO L430 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:09,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:09,067 INFO L82 PathProgramCache]: Analyzing trace with hash -784505350, now seen corresponding path program 1 times [2021-06-05 08:05:09,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:09,068 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604193871] [2021-06-05 08:05:09,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:09,168 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:05:09,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:09,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604193871] [2021-06-05 08:05:09,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604193871] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:05:09,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651133296] [2021-06-05 08:05:09,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 08:05:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:09,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-05 08:05:09,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 08:05:09,414 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:05:09,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651133296] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:05:09,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 08:05:09,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 12 [2021-06-05 08:05:09,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601637266] [2021-06-05 08:05:09,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-05 08:05:09,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:09,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-05 08:05:09,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-06-05 08:05:09,417 INFO L87 Difference]: Start difference. First operand 8765 states and 28783 transitions. Second operand has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 13 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:09,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:09,775 INFO L93 Difference]: Finished difference Result 12132 states and 39383 transitions. [2021-06-05 08:05:09,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-05 08:05:09,776 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 13 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 52 [2021-06-05 08:05:09,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:09,793 INFO L225 Difference]: With dead ends: 12132 [2021-06-05 08:05:09,794 INFO L226 Difference]: Without dead ends: 10332 [2021-06-05 08:05:09,794 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 218.1ms TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2021-06-05 08:05:09,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10332 states. [2021-06-05 08:05:09,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10332 to 8269. [2021-06-05 08:05:09,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8269 states, 8262 states have (on average 3.2785039941902685) internal successors, (27087), 8268 states have internal predecessors, (27087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8269 states to 8269 states and 27087 transitions. [2021-06-05 08:05:09,964 INFO L78 Accepts]: Start accepts. Automaton has 8269 states and 27087 transitions. Word has length 52 [2021-06-05 08:05:09,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:09,965 INFO L482 AbstractCegarLoop]: Abstraction has 8269 states and 27087 transitions. [2021-06-05 08:05:09,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 13 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:09,965 INFO L276 IsEmpty]: Start isEmpty. Operand 8269 states and 27087 transitions. [2021-06-05 08:05:09,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 08:05:09,973 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:09,973 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:10,173 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-05 08:05:10,174 INFO L430 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:10,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:10,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1704527864, now seen corresponding path program 1 times [2021-06-05 08:05:10,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:10,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970225931] [2021-06-05 08:05:10,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:10,287 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:05:10,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:10,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970225931] [2021-06-05 08:05:10,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970225931] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:05:10,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721770659] [2021-06-05 08:05:10,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 08:05:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:10,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-05 08:05:10,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 08:05:10,613 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2021-06-05 08:05:10,721 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 08:05:10,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721770659] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:05:10,722 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 08:05:10,722 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 10 [2021-06-05 08:05:10,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648356920] [2021-06-05 08:05:10,722 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 08:05:10,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:10,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 08:05:10,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-05 08:05:10,723 INFO L87 Difference]: Start difference. First operand 8269 states and 27087 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:10,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:10,985 INFO L93 Difference]: Finished difference Result 9461 states and 30874 transitions. [2021-06-05 08:05:10,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 08:05:10,986 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 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 52 [2021-06-05 08:05:10,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:10,996 INFO L225 Difference]: With dead ends: 9461 [2021-06-05 08:05:10,997 INFO L226 Difference]: Without dead ends: 7085 [2021-06-05 08:05:10,997 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 167.2ms TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2021-06-05 08:05:11,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7085 states. [2021-06-05 08:05:11,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7085 to 7085. [2021-06-05 08:05:11,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7085 states, 7078 states have (on average 3.294574738626731) internal successors, (23319), 7084 states have internal predecessors, (23319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:11,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7085 states to 7085 states and 23319 transitions. [2021-06-05 08:05:11,097 INFO L78 Accepts]: Start accepts. Automaton has 7085 states and 23319 transitions. Word has length 52 [2021-06-05 08:05:11,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:11,097 INFO L482 AbstractCegarLoop]: Abstraction has 7085 states and 23319 transitions. [2021-06-05 08:05:11,097 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:11,097 INFO L276 IsEmpty]: Start isEmpty. Operand 7085 states and 23319 transitions. [2021-06-05 08:05:11,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 08:05:11,104 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:11,104 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:11,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 08:05:11,305 INFO L430 AbstractCegarLoop]: === Iteration 19 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:11,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:11,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1556951818, now seen corresponding path program 2 times [2021-06-05 08:05:11,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:11,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971197017] [2021-06-05 08:05:11,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 08:05:11,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:11,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971197017] [2021-06-05 08:05:11,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971197017] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:05:11,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863276363] [2021-06-05 08:05:11,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 08:05:11,507 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 08:05:11,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 08:05:11,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 24 conjunts are in the unsatisfiable core [2021-06-05 08:05:11,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 08:05:11,635 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 08:05:11,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863276363] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:05:11,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 08:05:11,635 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 10 [2021-06-05 08:05:11,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713709114] [2021-06-05 08:05:11,636 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 08:05:11,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:11,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 08:05:11,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-05 08:05:11,636 INFO L87 Difference]: Start difference. First operand 7085 states and 23319 transitions. Second operand has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:11,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:11,925 INFO L93 Difference]: Finished difference Result 9061 states and 29544 transitions. [2021-06-05 08:05:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 08:05:11,925 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 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 52 [2021-06-05 08:05:11,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:11,941 INFO L225 Difference]: With dead ends: 9061 [2021-06-05 08:05:11,941 INFO L226 Difference]: Without dead ends: 7261 [2021-06-05 08:05:11,941 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 176.9ms TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2021-06-05 08:05:11,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7261 states. [2021-06-05 08:05:12,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7261 to 5509. [2021-06-05 08:05:12,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5509 states, 5502 states have (on average 3.281715739731007) internal successors, (18056), 5508 states have internal predecessors, (18056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:12,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5509 states to 5509 states and 18056 transitions. [2021-06-05 08:05:12,063 INFO L78 Accepts]: Start accepts. Automaton has 5509 states and 18056 transitions. Word has length 52 [2021-06-05 08:05:12,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:12,065 INFO L482 AbstractCegarLoop]: Abstraction has 5509 states and 18056 transitions. [2021-06-05 08:05:12,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:12,065 INFO L276 IsEmpty]: Start isEmpty. Operand 5509 states and 18056 transitions. [2021-06-05 08:05:12,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 08:05:12,071 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:12,071 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:12,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-06-05 08:05:12,285 INFO L430 AbstractCegarLoop]: === Iteration 20 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:12,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:12,285 INFO L82 PathProgramCache]: Analyzing trace with hash 2048916000, now seen corresponding path program 1 times [2021-06-05 08:05:12,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:12,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044046080] [2021-06-05 08:05:12,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 08:05:12,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:12,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044046080] [2021-06-05 08:05:12,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044046080] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:05:12,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347744555] [2021-06-05 08:05:12,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 08:05:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:12,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-05 08:05:12,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 08:05:12,600 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 08:05:12,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347744555] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 08:05:12,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 08:05:12,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 10 [2021-06-05 08:05:12,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654868506] [2021-06-05 08:05:12,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 08:05:12,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:12,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 08:05:12,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-05 08:05:12,602 INFO L87 Difference]: Start difference. First operand 5509 states and 18056 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:12,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:12,852 INFO L93 Difference]: Finished difference Result 6701 states and 21843 transitions. [2021-06-05 08:05:12,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 08:05:12,852 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-06-05 08:05:12,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:12,862 INFO L225 Difference]: With dead ends: 6701 [2021-06-05 08:05:12,862 INFO L226 Difference]: Without dead ends: 4381 [2021-06-05 08:05:12,862 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 177.2ms TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2021-06-05 08:05:12,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4381 states. [2021-06-05 08:05:12,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4381 to 4381. [2021-06-05 08:05:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4381 states, 4374 states have (on average 3.292181069958848) internal successors, (14400), 4380 states have internal predecessors, (14400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:12,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 14400 transitions. [2021-06-05 08:05:12,946 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 14400 transitions. Word has length 52 [2021-06-05 08:05:12,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:12,946 INFO L482 AbstractCegarLoop]: Abstraction has 4381 states and 14400 transitions. [2021-06-05 08:05:12,947 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:12,947 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 14400 transitions. [2021-06-05 08:05:12,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 08:05:12,950 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:12,950 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:13,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-06-05 08:05:13,151 INFO L430 AbstractCegarLoop]: === Iteration 21 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:13,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:13,151 INFO L82 PathProgramCache]: Analyzing trace with hash -2051994904, now seen corresponding path program 2 times [2021-06-05 08:05:13,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:13,151 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208937802] [2021-06-05 08:05:13,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:13,318 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 08:05:13,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:13,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208937802] [2021-06-05 08:05:13,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208937802] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:05:13,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:05:13,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 08:05:13,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913708210] [2021-06-05 08:05:13,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 08:05:13,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:13,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 08:05:13,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-05 08:05:13,320 INFO L87 Difference]: Start difference. First operand 4381 states and 14400 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:13,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:13,491 INFO L93 Difference]: Finished difference Result 4605 states and 14900 transitions. [2021-06-05 08:05:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 08:05:13,491 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-06-05 08:05:13,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:13,495 INFO L225 Difference]: With dead ends: 4605 [2021-06-05 08:05:13,496 INFO L226 Difference]: Without dead ends: 3029 [2021-06-05 08:05:13,496 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 119.1ms TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-06-05 08:05:13,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3029 states. [2021-06-05 08:05:13,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3029 to 3029. [2021-06-05 08:05:13,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3029 states, 3022 states have (on average 3.227332892124421) internal successors, (9753), 3028 states have internal predecessors, (9753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:13,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3029 states to 3029 states and 9753 transitions. [2021-06-05 08:05:13,530 INFO L78 Accepts]: Start accepts. Automaton has 3029 states and 9753 transitions. Word has length 52 [2021-06-05 08:05:13,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:13,530 INFO L482 AbstractCegarLoop]: Abstraction has 3029 states and 9753 transitions. [2021-06-05 08:05:13,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:13,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3029 states and 9753 transitions. [2021-06-05 08:05:13,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 08:05:13,532 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:13,532 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:13,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 08:05:13,532 INFO L430 AbstractCegarLoop]: === Iteration 22 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:05:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:13,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1676614440, now seen corresponding path program 2 times [2021-06-05 08:05:13,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:13,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105818687] [2021-06-05 08:05:13,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:05:13,619 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 08:05:13,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:05:13,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105818687] [2021-06-05 08:05:13,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105818687] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:05:13,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:05:13,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 08:05:13,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129664400] [2021-06-05 08:05:13,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 08:05:13,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:05:13,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 08:05:13,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-05 08:05:13,620 INFO L87 Difference]: Start difference. First operand 3029 states and 9753 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:13,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:05:13,767 INFO L93 Difference]: Finished difference Result 2469 states and 7815 transitions. [2021-06-05 08:05:13,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 08:05:13,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-06-05 08:05:13,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:05:13,768 INFO L225 Difference]: With dead ends: 2469 [2021-06-05 08:05:13,768 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 08:05:13,768 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 123.1ms TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-06-05 08:05:13,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 08:05:13,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 08:05:13,769 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) [2021-06-05 08:05:13,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 08:05:13,769 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2021-06-05 08:05:13,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:05:13,769 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 08:05:13,769 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:13,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 08:05:13,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 08:05:13,772 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 08:05:13,773 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 08:05:13,773 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 08:05:13,774 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 08:05:13,774 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 08:05:13,774 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 08:05:13,774 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 08:05:13,774 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 08:05:13,774 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 08:05:13,774 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 08:05:13,774 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 08:05:13,775 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 70 transitions, 161 flow [2021-06-05 08:05:17,074 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38214 states, 38191 states have (on average 3.935822575999581) internal successors, (150313), 38213 states have internal predecessors, (150313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:17,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 38214 states, 38191 states have (on average 3.935822575999581) internal successors, (150313), 38213 states have internal predecessors, (150313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:05:17,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-06-05 08:05:17,136 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:05:17,136 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:05:17,136 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 08:05:17,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:05:17,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1415973983, now seen corresponding path program 1 times [2021-06-05 08:05:17,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:05:17,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334478113] [2021-06-05 08:05:17,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:05:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 08:05:17,235 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 08:05:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 08:05:17,239 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 08:05:17,244 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 08:05:17,244 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 08:05:17,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 08:05:17,244 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 08:05:17,244 WARN L242 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 08:05:17,245 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-06-05 08:05:17,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:05:17,298 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 08:05:17,298 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 08:05:17,299 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 08:05:17,299 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 08:05:17,299 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 08:05:17,299 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 08:05:17,299 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 08:05:17,299 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 08:05:17,299 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 08:05:17,299 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 08:05:17,300 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 85 transitions, 202 flow Received shutdown request... [2021-06-05 08:18:49,090 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 08:18:49,090 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was TIMEOUT (1/2) [2021-06-05 08:18:49,090 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 08:18:49,091 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 08:18:49,091 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 08:18:49,091 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 08:18:49,091 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 08:18:49,091 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 08:18:49,091 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 08:18:49,091 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 08:18:49,091 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 08:18:49,092 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 85 transitions, 202 flow [2021-06-05 08:18:49,092 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 08:18:49,093 INFO L315 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT (2/2) [2021-06-05 08:18:49,093 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2021-06-05 08:18:49,095 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 08:18:49,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:18:49 BasicIcfg [2021-06-05 08:18:49,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 08:18:49,096 INFO L168 Benchmark]: Toolchain (without parser) took 851476.74 ms. Allocated memory was 367.0 MB in the beginning and 13.7 GB in the end (delta: 13.3 GB). Free memory was 329.9 MB in the beginning and 8.2 GB in the end (delta: -7.8 GB). Peak memory consumption was 5.5 GB. Max. memory is 16.0 GB. [2021-06-05 08:18:49,096 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 367.0 MB. Free memory was 347.8 MB in the beginning and 347.8 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 08:18:49,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.63 ms. Allocated memory is still 367.0 MB. Free memory was 329.7 MB in the beginning and 328.9 MB in the end (delta: 760.2 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. [2021-06-05 08:18:49,096 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.60 ms. Allocated memory is still 367.0 MB. Free memory was 328.9 MB in the beginning and 326.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 08:18:49,096 INFO L168 Benchmark]: Boogie Preprocessor took 39.84 ms. Allocated memory is still 367.0 MB. Free memory was 326.9 MB in the beginning and 325.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 08:18:49,096 INFO L168 Benchmark]: RCFGBuilder took 601.94 ms. Allocated memory is still 367.0 MB. Free memory was 325.8 MB in the beginning and 293.3 MB in the end (delta: 32.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-06-05 08:18:49,096 INFO L168 Benchmark]: TraceAbstraction took 850244.40 ms. Allocated memory was 367.0 MB in the beginning and 13.7 GB in the end (delta: 13.3 GB). Free memory was 293.3 MB in the beginning and 8.2 GB in the end (delta: -7.9 GB). Peak memory consumption was 5.5 GB. Max. memory is 16.0 GB. [2021-06-05 08:18:49,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 367.0 MB. Free memory was 347.8 MB in the beginning and 347.8 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 529.63 ms. Allocated memory is still 367.0 MB. Free memory was 329.7 MB in the beginning and 328.9 MB in the end (delta: 760.2 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.60 ms. Allocated memory is still 367.0 MB. Free memory was 328.9 MB in the beginning and 326.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 39.84 ms. Allocated memory is still 367.0 MB. Free memory was 326.9 MB in the beginning and 325.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 601.94 ms. Allocated memory is still 367.0 MB. Free memory was 325.8 MB in the beginning and 293.3 MB in the end (delta: 32.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 850244.40 ms. Allocated memory was 367.0 MB in the beginning and 13.7 GB in the end (delta: 13.3 GB). Free memory was 293.3 MB in the beginning and 8.2 GB in the end (delta: -7.9 GB). Peak memory consumption was 5.5 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 726]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 89 places, 85 transitions, 202 flow. Already constructed 509865 states. Currently 14014 states in worklist.. - TimeoutResultAtElement [Line: 733]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 89 places, 85 transitions, 202 flow. Already constructed 2 states. Currently 1 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 53 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 539.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.4ms, AutomataDifference: 122.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 40 SDtfs, 33 SDslu, 64 SDs, 0 SdLazy, 12 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 58.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 53.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.2ms SsaConstructionTime, 84.5ms SatisfiabilityAnalysisTime, 182.2ms InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 67 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1815.3ms, OverallIterations: 6, TraceHistogramMax: 2, EmptinessCheckTime: 20.9ms, AutomataDifference: 774.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 93.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 430 SDtfs, 534 SDslu, 923 SDs, 0 SdLazy, 405 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 343.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 406.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2738occurred in iteration=0, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 189.7ms AutomataMinimizationTime, 6 MinimizatonAttempts, 1096 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.0ms SsaConstructionTime, 91.5ms SatisfiabilityAnalysisTime, 564.1ms InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 203 ConstructedInterpolants, 0 QuantifiedInterpolants, 717 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 25/25 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 81 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 32201.4ms, OverallIterations: 22, TraceHistogramMax: 3, EmptinessCheckTime: 213.8ms, AutomataDifference: 9734.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2986.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2954 SDtfs, 4231 SDslu, 9169 SDs, 0 SdLazy, 4469 SolverSat, 264 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2539.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 604 GetRequests, 376 SyntacticMatches, 8 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2204.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=38214occurred in iteration=0, InterpolantAutomatonStates: 207, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 13591.1ms AutomataMinimizationTime, 22 MinimizatonAttempts, 193294 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 113.2ms SsaConstructionTime, 477.7ms SatisfiabilityAnalysisTime, 2940.0ms InterpolantComputationTime, 1358 NumberOfCodeBlocks, 1358 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1328 ConstructedInterpolants, 0 QuantifiedInterpolants, 7331 SizeOfPredicates, 51 NumberOfNonLiveVariables, 1112 ConjunctsInSsa, 164 ConjunctsInUnsatCore, 30 InterpolantComputations, 15 PerfectInterpolantSequences, 252/421 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 - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 95 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 811791.0ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 811790.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 53 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 71.2ms, OverallIterations: 1, TraceHistogramMax: 2, EmptinessCheckTime: 2.5ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.7ms SsaConstructionTime, 8.7ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 4 procedures, 67 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 152.2ms, OverallIterations: 1, TraceHistogramMax: 3, EmptinessCheckTime: 7.2ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 80.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2738occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.4ms SsaConstructionTime, 18.8ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 3 thread instances CFG has 5 procedures, 81 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3470.7ms, OverallIterations: 1, TraceHistogramMax: 4, EmptinessCheckTime: 61.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3300.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=38214occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7ms SsaConstructionTime, 95.8ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 4 thread instances CFG has 6 procedures, 95 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 1.6ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown