/usr/bin/java -Xmx8000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 13:51:52,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 13:51:52,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 13:51:52,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-18 13:51:52,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 13:51:52,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 13:51:52,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 13:51:52,581 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-18 13:51:52,595 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 13:51:52,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 13:51:52,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 13:51:52,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 13:51:52,596 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 13:51:52,596 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 13:51:52,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 13:51:52,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 13:51:52,597 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 13:51:52,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 13:51:52,597 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 13:51:52,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 13:51:52,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 13:51:52,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 13:51:52,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 13:51:52,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 13:51:52,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 13:51:52,597 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 13:51:52,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 13:51:52,598 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 13:51:52,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 13:51:52,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 13:51:52,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 13:51:52,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 13:51:52,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 13:51:52,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 13:51:52,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 13:51:52,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 13:51:52,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 13:51:52,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 13:51:52,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 13:51:52,599 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 13:51:52,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 13:51:52,599 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 13:51:52,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 13:51:52,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 13:51:52,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 13:51:52,800 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 13:51:52,803 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 13:51:52,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2022-02-18 13:51:52,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfa709575/832765860d704743a052d91343d86451/FLAGb41a92ff9 [2022-02-18 13:51:53,306 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 13:51:53,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2022-02-18 13:51:53,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfa709575/832765860d704743a052d91343d86451/FLAGb41a92ff9 [2022-02-18 13:51:53,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfa709575/832765860d704743a052d91343d86451 [2022-02-18 13:51:53,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 13:51:53,340 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 13:51:53,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 13:51:53,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 13:51:53,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 13:51:53,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:51:53" (1/1) ... [2022-02-18 13:51:53,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee67362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53, skipping insertion in model container [2022-02-18 13:51:53,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:51:53" (1/1) ... [2022-02-18 13:51:53,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 13:51:53,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 13:51:53,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2022-02-18 13:51:53,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 13:51:53,607 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 13:51:53,614 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2022-02-18 13:51:53,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 13:51:53,651 INFO L208 MainTranslator]: Completed translation [2022-02-18 13:51:53,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53 WrapperNode [2022-02-18 13:51:53,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 13:51:53,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 13:51:53,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 13:51:53,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 13:51:53,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53" (1/1) ... [2022-02-18 13:51:53,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53" (1/1) ... [2022-02-18 13:51:53,688 INFO L137 Inliner]: procedures = 165, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 97 [2022-02-18 13:51:53,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 13:51:53,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 13:51:53,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 13:51:53,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 13:51:53,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53" (1/1) ... [2022-02-18 13:51:53,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53" (1/1) ... [2022-02-18 13:51:53,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53" (1/1) ... [2022-02-18 13:51:53,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53" (1/1) ... [2022-02-18 13:51:53,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53" (1/1) ... [2022-02-18 13:51:53,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53" (1/1) ... [2022-02-18 13:51:53,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53" (1/1) ... [2022-02-18 13:51:53,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 13:51:53,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 13:51:53,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 13:51:53,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 13:51:53,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53" (1/1) ... [2022-02-18 13:51:53,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 13:51:53,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 13:51:53,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-18 13:51:53,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-18 13:51:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-02-18 13:51:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-02-18 13:51:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 13:51:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-18 13:51:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 13:51:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 13:51:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 13:51:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 13:51:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 13:51:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 13:51:53,774 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 13:51:53,845 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 13:51:53,846 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 13:51:54,024 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 13:51:54,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 13:51:54,032 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-18 13:51:54,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:51:54 BoogieIcfgContainer [2022-02-18 13:51:54,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 13:51:54,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 13:51:54,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 13:51:54,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 13:51:54,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 01:51:53" (1/3) ... [2022-02-18 13:51:54,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b7ade0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:51:54, skipping insertion in model container [2022-02-18 13:51:54,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:53" (2/3) ... [2022-02-18 13:51:54,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b7ade0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:51:54, skipping insertion in model container [2022-02-18 13:51:54,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:51:54" (3/3) ... [2022-02-18 13:51:54,040 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2022-02-18 13:51:54,043 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 13:51:54,043 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 13:51:54,043 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-18 13:51:54,043 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 13:51:54,074 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,074 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,074 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,074 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,074 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,074 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,075 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,075 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,075 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,075 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,075 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,075 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,075 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,076 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,076 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,076 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,076 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,076 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,076 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,076 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,076 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,076 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,076 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,077 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,077 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,077 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,077 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,077 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,078 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,078 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,078 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,078 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,078 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,078 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,078 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,078 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,078 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,079 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,079 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,079 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,079 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,079 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,079 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,079 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,079 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,080 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,080 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,080 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,080 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,080 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,081 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,081 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,081 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,081 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,081 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,081 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,082 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,082 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,082 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,082 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,082 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,082 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,082 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,082 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,082 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,082 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,083 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,083 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,083 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,084 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,086 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,086 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,086 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,086 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,086 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,087 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,087 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,087 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,087 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,087 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,087 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:51:54,093 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-18 13:51:54,125 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 13:51:54,129 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 13:51:54,130 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-18 13:51:54,139 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 111 places, 117 transitions, 239 flow [2022-02-18 13:51:54,197 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1168 states, 1166 states have (on average 2.16295025728988) internal successors, (2522), 1167 states have internal predecessors, (2522), 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) [2022-02-18 13:51:54,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 1168 states, 1166 states have (on average 2.16295025728988) internal successors, (2522), 1167 states have internal predecessors, (2522), 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) [2022-02-18 13:51:54,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-18 13:51:54,213 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:51:54,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:51:54,214 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-18 13:51:54,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:51:54,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1486853340, now seen corresponding path program 1 times [2022-02-18 13:51:54,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:51:54,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163747180] [2022-02-18 13:51:54,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:51:54,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:51:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:51:54,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:51:54,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:51:54,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163747180] [2022-02-18 13:51:54,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163747180] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:51:54,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:51:54,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-18 13:51:54,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209689527] [2022-02-18 13:51:54,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:51:54,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-18 13:51:54,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:51:54,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-18 13:51:54,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 13:51:54,413 INFO L87 Difference]: Start difference. First operand has 1168 states, 1166 states have (on average 2.16295025728988) internal successors, (2522), 1167 states have internal predecessors, (2522), 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 2 states, 2 states have (on average 26.0) internal successors, (52), 2 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) [2022-02-18 13:51:54,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:51:54,471 INFO L93 Difference]: Finished difference Result 1110 states and 2278 transitions. [2022-02-18 13:51:54,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 13:51:54,474 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 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 [2022-02-18 13:51:54,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:51:54,489 INFO L225 Difference]: With dead ends: 1110 [2022-02-18 13:51:54,489 INFO L226 Difference]: Without dead ends: 1110 [2022-02-18 13:51:54,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 13:51:54,492 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:51:54,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:51:54,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2022-02-18 13:51:54,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1110. [2022-02-18 13:51:54,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1108 states have (on average 2.055956678700361) internal successors, (2278), 1109 states have internal predecessors, (2278), 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) [2022-02-18 13:51:54,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 2278 transitions. [2022-02-18 13:51:54,589 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 2278 transitions. Word has length 52 [2022-02-18 13:51:54,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:51:54,590 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 2278 transitions. [2022-02-18 13:51:54,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 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) [2022-02-18 13:51:54,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 2278 transitions. [2022-02-18 13:51:54,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-18 13:51:54,592 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:51:54,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:51:54,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 13:51:54,593 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-18 13:51:54,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:51:54,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1920610275, now seen corresponding path program 1 times [2022-02-18 13:51:54,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:51:54,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851844758] [2022-02-18 13:51:54,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:51:54,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:51:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:51:54,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:51:54,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:51:54,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851844758] [2022-02-18 13:51:54,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851844758] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:51:54,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:51:54,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 13:51:54,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540482087] [2022-02-18 13:51:54,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:51:54,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 13:51:54,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:51:54,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 13:51:54,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 13:51:54,665 INFO L87 Difference]: Start difference. First operand 1110 states and 2278 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2022-02-18 13:51:54,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:51:54,694 INFO L93 Difference]: Finished difference Result 1322 states and 2696 transitions. [2022-02-18 13:51:54,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 13:51:54,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 [2022-02-18 13:51:54,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:51:54,699 INFO L225 Difference]: With dead ends: 1322 [2022-02-18 13:51:54,699 INFO L226 Difference]: Without dead ends: 1322 [2022-02-18 13:51:54,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 13:51:54,700 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 44 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:51:54,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 163 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:51:54,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-02-18 13:51:54,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1304. [2022-02-18 13:51:54,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1302 states have (on average 2.0514592933947773) internal successors, (2671), 1303 states have internal predecessors, (2671), 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) [2022-02-18 13:51:54,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 2671 transitions. [2022-02-18 13:51:54,728 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 2671 transitions. Word has length 52 [2022-02-18 13:51:54,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:51:54,728 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 2671 transitions. [2022-02-18 13:51:54,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2022-02-18 13:51:54,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 2671 transitions. [2022-02-18 13:51:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-18 13:51:54,730 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:51:54,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:51:54,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 13:51:54,730 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-18 13:51:54,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:51:54,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1003523105, now seen corresponding path program 1 times [2022-02-18 13:51:54,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:51:54,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561252808] [2022-02-18 13:51:54,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:51:54,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:51:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:51:54,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:51:54,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:51:54,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561252808] [2022-02-18 13:51:54,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561252808] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:51:54,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:51:54,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 13:51:54,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391511675] [2022-02-18 13:51:54,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:51:54,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 13:51:54,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:51:54,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 13:51:54,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-18 13:51:54,799 INFO L87 Difference]: Start difference. First operand 1304 states and 2671 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 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) [2022-02-18 13:51:54,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:51:54,881 INFO L93 Difference]: Finished difference Result 1984 states and 4096 transitions. [2022-02-18 13:51:54,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 13:51:54,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 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 [2022-02-18 13:51:54,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:51:54,888 INFO L225 Difference]: With dead ends: 1984 [2022-02-18 13:51:54,888 INFO L226 Difference]: Without dead ends: 1851 [2022-02-18 13:51:54,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-18 13:51:54,889 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 203 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:51:54,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 539 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:51:54,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2022-02-18 13:51:54,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1257. [2022-02-18 13:51:54,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1255 states have (on average 2.047011952191235) internal successors, (2569), 1256 states have internal predecessors, (2569), 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) [2022-02-18 13:51:54,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2569 transitions. [2022-02-18 13:51:54,915 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2569 transitions. Word has length 52 [2022-02-18 13:51:54,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:51:54,915 INFO L470 AbstractCegarLoop]: Abstraction has 1257 states and 2569 transitions. [2022-02-18 13:51:54,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 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) [2022-02-18 13:51:54,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2569 transitions. [2022-02-18 13:51:54,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-18 13:51:54,917 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:51:54,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:51:54,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 13:51:54,917 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-18 13:51:54,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:51:54,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1335107149, now seen corresponding path program 1 times [2022-02-18 13:51:54,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:51:54,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227076301] [2022-02-18 13:51:54,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:51:54,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:51:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:51:54,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:51:54,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:51:54,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227076301] [2022-02-18 13:51:54,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227076301] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:51:54,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:51:54,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 13:51:54,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922448565] [2022-02-18 13:51:54,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:51:54,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 13:51:54,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:51:54,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 13:51:54,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 13:51:54,955 INFO L87 Difference]: Start difference. First operand 1257 states and 2569 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2022-02-18 13:51:54,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:51:54,972 INFO L93 Difference]: Finished difference Result 997 states and 1966 transitions. [2022-02-18 13:51:54,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 13:51:54,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2022-02-18 13:51:54,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:51:54,975 INFO L225 Difference]: With dead ends: 997 [2022-02-18 13:51:54,975 INFO L226 Difference]: Without dead ends: 933 [2022-02-18 13:51:54,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 13:51:54,976 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 55 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:51:54,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 197 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:51:54,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-02-18 13:51:54,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 919. [2022-02-18 13:51:54,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 915 states have (on average 1.980327868852459) internal successors, (1812), 918 states have internal predecessors, (1812), 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) [2022-02-18 13:51:54,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1812 transitions. [2022-02-18 13:51:54,993 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1812 transitions. Word has length 64 [2022-02-18 13:51:54,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:51:54,993 INFO L470 AbstractCegarLoop]: Abstraction has 919 states and 1812 transitions. [2022-02-18 13:51:54,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2022-02-18 13:51:54,993 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1812 transitions. [2022-02-18 13:51:54,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-18 13:51:54,995 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:51:54,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:51:54,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-18 13:51:54,996 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-18 13:51:54,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:51:54,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1121916305, now seen corresponding path program 1 times [2022-02-18 13:51:54,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:51:54,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291787347] [2022-02-18 13:51:54,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:51:54,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:51:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:51:55,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:51:55,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:51:55,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291787347] [2022-02-18 13:51:55,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291787347] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:51:55,070 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:51:55,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 13:51:55,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112056056] [2022-02-18 13:51:55,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:51:55,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 13:51:55,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:51:55,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 13:51:55,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-18 13:51:55,071 INFO L87 Difference]: Start difference. First operand 919 states and 1812 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2022-02-18 13:51:55,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:51:55,148 INFO L93 Difference]: Finished difference Result 2105 states and 4263 transitions. [2022-02-18 13:51:55,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 13:51:55,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2022-02-18 13:51:55,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:51:55,157 INFO L225 Difference]: With dead ends: 2105 [2022-02-18 13:51:55,157 INFO L226 Difference]: Without dead ends: 2105 [2022-02-18 13:51:55,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-18 13:51:55,160 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 244 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:51:55,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 627 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:51:55,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2022-02-18 13:51:55,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 879. [2022-02-18 13:51:55,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 877 states have (on average 1.9771949828962372) internal successors, (1734), 878 states have internal predecessors, (1734), 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) [2022-02-18 13:51:55,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1734 transitions. [2022-02-18 13:51:55,191 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1734 transitions. Word has length 66 [2022-02-18 13:51:55,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:51:55,192 INFO L470 AbstractCegarLoop]: Abstraction has 879 states and 1734 transitions. [2022-02-18 13:51:55,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2022-02-18 13:51:55,192 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1734 transitions. [2022-02-18 13:51:55,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-18 13:51:55,193 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:51:55,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:51:55,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-18 13:51:55,195 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-18 13:51:55,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:51:55,196 INFO L85 PathProgramCache]: Analyzing trace with hash -204829135, now seen corresponding path program 1 times [2022-02-18 13:51:55,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:51:55,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515120540] [2022-02-18 13:51:55,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:51:55,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:51:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:51:55,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:51:55,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:51:55,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515120540] [2022-02-18 13:51:55,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515120540] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:51:55,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:51:55,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 13:51:55,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180259221] [2022-02-18 13:51:55,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:51:55,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 13:51:55,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:51:55,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 13:51:55,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-18 13:51:55,267 INFO L87 Difference]: Start difference. First operand 879 states and 1734 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2022-02-18 13:51:55,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:51:55,320 INFO L93 Difference]: Finished difference Result 1220 states and 2399 transitions. [2022-02-18 13:51:55,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 13:51:55,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2022-02-18 13:51:55,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:51:55,324 INFO L225 Difference]: With dead ends: 1220 [2022-02-18 13:51:55,324 INFO L226 Difference]: Without dead ends: 1220 [2022-02-18 13:51:55,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:51:55,325 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 75 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:51:55,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 377 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:51:55,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2022-02-18 13:51:55,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1172. [2022-02-18 13:51:55,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1170 states have (on average 1.9615384615384615) internal successors, (2295), 1171 states have internal predecessors, (2295), 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) [2022-02-18 13:51:55,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 2295 transitions. [2022-02-18 13:51:55,344 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 2295 transitions. Word has length 66 [2022-02-18 13:51:55,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:51:55,345 INFO L470 AbstractCegarLoop]: Abstraction has 1172 states and 2295 transitions. [2022-02-18 13:51:55,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2022-02-18 13:51:55,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 2295 transitions. [2022-02-18 13:51:55,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-18 13:51:55,352 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:51:55,353 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:51:55,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-18 13:51:55,353 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-18 13:51:55,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:51:55,353 INFO L85 PathProgramCache]: Analyzing trace with hash 919487059, now seen corresponding path program 1 times [2022-02-18 13:51:55,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:51:55,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919914012] [2022-02-18 13:51:55,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:51:55,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:51:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:51:55,428 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:51:55,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:51:55,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919914012] [2022-02-18 13:51:55,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919914012] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 13:51:55,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739586395] [2022-02-18 13:51:55,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:51:55,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 13:51:55,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 13:51:55,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 13:51:55,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-18 13:51:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:51:55,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-18 13:51:55,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 13:51:55,706 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:51:55,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 13:51:55,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739586395] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:51:55,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 13:51:55,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2022-02-18 13:51:55,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820165653] [2022-02-18 13:51:55,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:51:55,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:51:55,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:51:55,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:51:55,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-18 13:51:55,708 INFO L87 Difference]: Start difference. First operand 1172 states and 2295 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2022-02-18 13:51:55,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:51:55,778 INFO L93 Difference]: Finished difference Result 1893 states and 3731 transitions. [2022-02-18 13:51:55,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:51:55,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2022-02-18 13:51:55,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:51:55,784 INFO L225 Difference]: With dead ends: 1893 [2022-02-18 13:51:55,785 INFO L226 Difference]: Without dead ends: 1893 [2022-02-18 13:51:55,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-02-18 13:51:55,785 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 148 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:51:55,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 513 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:51:55,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2022-02-18 13:51:55,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1185. [2022-02-18 13:51:55,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1183 states have (on average 1.9695688926458157) internal successors, (2330), 1184 states have internal predecessors, (2330), 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) [2022-02-18 13:51:55,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 2330 transitions. [2022-02-18 13:51:55,807 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 2330 transitions. Word has length 85 [2022-02-18 13:51:55,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:51:55,807 INFO L470 AbstractCegarLoop]: Abstraction has 1185 states and 2330 transitions. [2022-02-18 13:51:55,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2022-02-18 13:51:55,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 2330 transitions. [2022-02-18 13:51:55,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-18 13:51:55,808 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:51:55,808 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:51:55,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-18 13:51:56,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 13:51:56,024 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-18 13:51:56,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:51:56,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1776839810, now seen corresponding path program 1 times [2022-02-18 13:51:56,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:51:56,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144122930] [2022-02-18 13:51:56,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:51:56,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:51:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:51:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:51:56,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:51:56,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144122930] [2022-02-18 13:51:56,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144122930] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:51:56,104 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:51:56,104 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 13:51:56,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123833672] [2022-02-18 13:51:56,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:51:56,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 13:51:56,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:51:56,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 13:51:56,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-18 13:51:56,105 INFO L87 Difference]: Start difference. First operand 1185 states and 2330 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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) [2022-02-18 13:51:56,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:51:56,233 INFO L93 Difference]: Finished difference Result 2529 states and 5048 transitions. [2022-02-18 13:51:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 13:51:56,233 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 91 [2022-02-18 13:51:56,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:51:56,239 INFO L225 Difference]: With dead ends: 2529 [2022-02-18 13:51:56,239 INFO L226 Difference]: Without dead ends: 1871 [2022-02-18 13:51:56,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-02-18 13:51:56,240 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 600 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 13:51:56,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [600 Valid, 1026 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 13:51:56,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2022-02-18 13:51:56,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1146. [2022-02-18 13:51:56,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1144 states have (on average 1.9624125874125875) internal successors, (2245), 1145 states have internal predecessors, (2245), 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) [2022-02-18 13:51:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 2245 transitions. [2022-02-18 13:51:56,261 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 2245 transitions. Word has length 91 [2022-02-18 13:51:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:51:56,262 INFO L470 AbstractCegarLoop]: Abstraction has 1146 states and 2245 transitions. [2022-02-18 13:51:56,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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) [2022-02-18 13:51:56,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 2245 transitions. [2022-02-18 13:51:56,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-18 13:51:56,264 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:51:56,264 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:51:56,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-18 13:51:56,264 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-18 13:51:56,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:51:56,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1619660264, now seen corresponding path program 1 times [2022-02-18 13:51:56,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:51:56,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298485119] [2022-02-18 13:51:56,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:51:56,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:51:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:51:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 13:51:56,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:51:56,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298485119] [2022-02-18 13:51:56,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298485119] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:51:56,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:51:56,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 13:51:56,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217631839] [2022-02-18 13:51:56,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:51:56,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 13:51:56,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:51:56,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 13:51:56,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-18 13:51:56,309 INFO L87 Difference]: Start difference. First operand 1146 states and 2245 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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) [2022-02-18 13:51:56,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:51:56,355 INFO L93 Difference]: Finished difference Result 1070 states and 2084 transitions. [2022-02-18 13:51:56,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 13:51:56,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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 110 [2022-02-18 13:51:56,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:51:56,356 INFO L225 Difference]: With dead ends: 1070 [2022-02-18 13:51:56,356 INFO L226 Difference]: Without dead ends: 0 [2022-02-18 13:51:56,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-18 13:51:56,356 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 157 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:51:56,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 430 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:51:56,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-18 13:51:56,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-18 13:51:56,357 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) [2022-02-18 13:51:56,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-18 13:51:56,357 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2022-02-18 13:51:56,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:51:56,357 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-18 13:51:56,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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) [2022-02-18 13:51:56,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-18 13:51:56,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-18 13:51:56,359 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 5 remaining) [2022-02-18 13:51:56,359 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-02-18 13:51:56,360 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-02-18 13:51:56,360 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-02-18 13:51:56,360 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-02-18 13:51:56,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-18 13:51:56,362 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:51:56,365 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-18 13:51:56,365 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-18 13:51:56,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 01:51:56 BasicIcfg [2022-02-18 13:51:56,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-18 13:51:56,367 INFO L158 Benchmark]: Toolchain (without parser) took 3027.30ms. Allocated memory was 212.9MB in the beginning and 269.5MB in the end (delta: 56.6MB). Free memory was 160.5MB in the beginning and 116.6MB in the end (delta: 43.8MB). Peak memory consumption was 101.5MB. Max. memory is 8.0GB. [2022-02-18 13:51:56,367 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 212.9MB. Free memory is still 178.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 13:51:56,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.37ms. Allocated memory is still 212.9MB. Free memory was 160.2MB in the beginning and 178.4MB in the end (delta: -18.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-18 13:51:56,368 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.02ms. Allocated memory is still 212.9MB. Free memory was 178.4MB in the beginning and 176.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-18 13:51:56,368 INFO L158 Benchmark]: Boogie Preprocessor took 31.44ms. Allocated memory is still 212.9MB. Free memory was 176.3MB in the beginning and 174.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-18 13:51:56,368 INFO L158 Benchmark]: RCFGBuilder took 313.07ms. Allocated memory is still 212.9MB. Free memory was 174.7MB in the beginning and 161.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-18 13:51:56,368 INFO L158 Benchmark]: TraceAbstraction took 2330.85ms. Allocated memory was 212.9MB in the beginning and 269.5MB in the end (delta: 56.6MB). Free memory was 161.1MB in the beginning and 116.6MB in the end (delta: 44.5MB). Peak memory consumption was 101.6MB. Max. memory is 8.0GB. [2022-02-18 13:51:56,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 212.9MB. Free memory is still 178.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 311.37ms. Allocated memory is still 212.9MB. Free memory was 160.2MB in the beginning and 178.4MB in the end (delta: -18.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.02ms. Allocated memory is still 212.9MB. Free memory was 178.4MB in the beginning and 176.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.44ms. Allocated memory is still 212.9MB. Free memory was 176.3MB in the beginning and 174.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 313.07ms. Allocated memory is still 212.9MB. Free memory was 174.7MB in the beginning and 161.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2330.85ms. Allocated memory was 212.9MB in the beginning and 269.5MB in the end (delta: 56.6MB). Free memory was 161.1MB in the beginning and 116.6MB in the end (delta: 44.5MB). Peak memory consumption was 101.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 151 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1526 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1526 mSDsluCounter, 3977 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2640 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 455 IncrementalHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 1347 mSDtfsCounter, 455 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1304occurred in iteration=2, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 3333 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 723 NumberOfCodeBlocks, 723 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 713 ConstructedInterpolants, 0 QuantifiedInterpolants, 1322 SizeOfPredicates, 4 NumberOfNonLiveVariables, 194 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 40/49 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-18 13:51:56,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...