/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-LoopLockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-ba0fd47f62a02cd5486659f03d300faf678a2e90-ba0fd47 [2021-11-14 10:54:27,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-14 10:54:27,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-14 10:54:27,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-14 10:54:27,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-14 10:54:27,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-14 10:54:27,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-14 10:54:27,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-14 10:54:27,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-14 10:54:27,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-14 10:54:27,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-14 10:54:27,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-14 10:54:27,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-14 10:54:27,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-14 10:54:27,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-14 10:54:27,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-14 10:54:27,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-14 10:54:27,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-14 10:54:27,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-14 10:54:27,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-14 10:54:27,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-14 10:54:27,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-14 10:54:27,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-14 10:54:27,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-14 10:54:27,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-11-14 10:54:27,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-14 10:54:27,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-14 10:54:27,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-14 10:54:27,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-14 10:54:27,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-14 10:54:27,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-14 10:54:27,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-14 10:54:27,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-14 10:54:27,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-14 10:54:27,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-14 10:54:27,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-14 10:54:27,826 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-LoopLockstep.epf [2021-11-14 10:54:27,845 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-14 10:54:27,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-14 10:54:27,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-14 10:54:27,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-14 10:54:27,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-14 10:54:27,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-14 10:54:27,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-14 10:54:27,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-14 10:54:27,847 INFO L138 SettingsManager]: * Use SBE=true [2021-11-14 10:54:27,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-14 10:54:27,847 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-14 10:54:27,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-14 10:54:27,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-14 10:54:27,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-14 10:54:27,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-14 10:54:27,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-14 10:54:27,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-14 10:54:27,850 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-14 10:54:27,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-14 10:54:27,850 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-14 10:54:27,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-14 10:54:27,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-14 10:54:27,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-14 10:54:27,850 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-14 10:54:27,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-14 10:54:27,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 10:54:27,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-14 10:54:27,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-14 10:54:27,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-14 10:54:27,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-14 10:54:27,851 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-14 10:54:27,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-14 10:54:27,852 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-14 10:54:27,852 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-14 10:54:27,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-14 10:54:27,852 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-14 10:54:27,853 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-14 10:54:27,853 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-11-14 10:54:28,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-14 10:54:28,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-14 10:54:28,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-14 10:54:28,030 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-14 10:54:28,030 INFO L275 PluginConnector]: CDTParser initialized [2021-11-14 10:54:28,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c [2021-11-14 10:54:28,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5edfbd717/f2e6c34d45b14e2f8da10f4a08bbb761/FLAG18d079e9a [2021-11-14 10:54:28,348 INFO L306 CDTParser]: Found 1 translation units. [2021-11-14 10:54:28,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c [2021-11-14 10:54:28,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5edfbd717/f2e6c34d45b14e2f8da10f4a08bbb761/FLAG18d079e9a [2021-11-14 10:54:28,788 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5edfbd717/f2e6c34d45b14e2f8da10f4a08bbb761 [2021-11-14 10:54:28,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-14 10:54:28,790 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-14 10:54:28,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-14 10:54:28,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-14 10:54:28,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-14 10:54:28,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 10:54:28" (1/1) ... [2021-11-14 10:54:28,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9cd7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:28, skipping insertion in model container [2021-11-14 10:54:28,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 10:54:28" (1/1) ... [2021-11-14 10:54:28,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-14 10:54:28,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-14 10:54:29,002 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c[2428,2441] [2021-11-14 10:54:29,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 10:54:29,020 INFO L203 MainTranslator]: Completed pre-run [2021-11-14 10:54:29,034 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c[2428,2441] [2021-11-14 10:54:29,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 10:54:29,045 INFO L208 MainTranslator]: Completed translation [2021-11-14 10:54:29,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:29 WrapperNode [2021-11-14 10:54:29,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-14 10:54:29,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-14 10:54:29,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-14 10:54:29,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-14 10:54:29,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:29" (1/1) ... [2021-11-14 10:54:29,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:29" (1/1) ... [2021-11-14 10:54:29,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-14 10:54:29,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-14 10:54:29,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-14 10:54:29,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-14 10:54:29,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:29" (1/1) ... [2021-11-14 10:54:29,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:29" (1/1) ... [2021-11-14 10:54:29,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:29" (1/1) ... [2021-11-14 10:54:29,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:29" (1/1) ... [2021-11-14 10:54:29,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:29" (1/1) ... [2021-11-14 10:54:29,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:29" (1/1) ... [2021-11-14 10:54:29,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:29" (1/1) ... [2021-11-14 10:54:29,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-14 10:54:29,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-14 10:54:29,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-14 10:54:29,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-14 10:54:29,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:29" (1/1) ... [2021-11-14 10:54:29,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 10:54:29,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 10:54:29,122 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) [2021-11-14 10:54:29,127 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 [2021-11-14 10:54:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-14 10:54:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-14 10:54:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-14 10:54:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-14 10:54:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-14 10:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-14 10:54:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-14 10:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-14 10:54:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-14 10:54:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-14 10:54:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-14 10:54:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-14 10:54:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-14 10:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-14 10:54:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-14 10:54:29,156 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-14 10:54:29,467 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-14 10:54:29,467 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-14 10:54:29,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 10:54:29 BoogieIcfgContainer [2021-11-14 10:54:29,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-14 10:54:29,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-14 10:54:29,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-14 10:54:29,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-14 10:54:29,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 10:54:28" (1/3) ... [2021-11-14 10:54:29,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7101c4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 10:54:29, skipping insertion in model container [2021-11-14 10:54:29,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 10:54:29" (2/3) ... [2021-11-14 10:54:29,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7101c4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 10:54:29, skipping insertion in model container [2021-11-14 10:54:29,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 10:54:29" (3/3) ... [2021-11-14 10:54:29,478 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue.wvr.c [2021-11-14 10:54:29,481 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-14 10:54:29,481 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-14 10:54:29,481 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-14 10:54:29,481 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-14 10:54:29,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,522 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~tmp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~tmp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~tmp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~tmp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,529 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,529 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,535 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,538 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,543 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,543 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,543 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,545 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~tmp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,545 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 10:54:29,546 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-14 10:54:29,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 10:54:29,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 10:54:29,583 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 10:54:29,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-14 10:54:29,615 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 10:54:29,619 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=PARTIAL_ORDER_FA, 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 [2021-11-14 10:54:29,619 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-14 10:54:29,739 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 10:54:29,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 10:54:29,743 INFO L85 PathProgramCache]: Analyzing trace with hash -625380693, now seen corresponding path program 1 times [2021-11-14 10:54:29,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 10:54:29,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676880656] [2021-11-14 10:54:29,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:29,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 10:54:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 10:54:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 10:54:29,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 10:54:29,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676880656] [2021-11-14 10:54:29,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676880656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 10:54:29,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 10:54:29,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 10:54:29,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632433564] [2021-11-14 10:54:29,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 10:54:29,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 10:54:29,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 10:54:29,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 10:54:29,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 10:54:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:29,906 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 10:54:29,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 10:54:29,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:29,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:29,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-14 10:54:29,935 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 10:54:29,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 10:54:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1498763792, now seen corresponding path program 1 times [2021-11-14 10:54:29,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 10:54:29,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831532594] [2021-11-14 10:54:29,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:29,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 10:54:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 10:54:30,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 10:54:30,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 10:54:30,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831532594] [2021-11-14 10:54:30,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831532594] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 10:54:30,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 10:54:30,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-14 10:54:30,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262308217] [2021-11-14 10:54:30,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 10:54:30,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 10:54:30,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 10:54:30,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 10:54:30,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-14 10:54:30,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:30,077 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 10:54:30,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 10:54:30,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:30,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:30,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:30,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:30,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-14 10:54:30,166 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 10:54:30,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 10:54:30,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1511532596, now seen corresponding path program 1 times [2021-11-14 10:54:30,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 10:54:30,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486923418] [2021-11-14 10:54:30,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:30,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 10:54:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 10:54:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 10:54:30,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 10:54:30,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486923418] [2021-11-14 10:54:30,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486923418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 10:54:30,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 10:54:30,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-14 10:54:30,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77812081] [2021-11-14 10:54:30,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 10:54:30,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-14 10:54:30,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 10:54:30,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-14 10:54:30,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-14 10:54:30,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:30,263 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 10:54:30,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 10:54:30,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:30,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:30,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:30,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:30,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:30,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:30,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-14 10:54:30,336 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 10:54:30,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 10:54:30,337 INFO L85 PathProgramCache]: Analyzing trace with hash -498458182, now seen corresponding path program 1 times [2021-11-14 10:54:30,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 10:54:30,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376860007] [2021-11-14 10:54:30,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:30,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 10:54:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 10:54:30,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 10:54:30,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 10:54:30,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376860007] [2021-11-14 10:54:30,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376860007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 10:54:30,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 10:54:30,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-14 10:54:30,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576102779] [2021-11-14 10:54:30,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 10:54:30,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-14 10:54:30,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 10:54:30,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-14 10:54:30,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-14 10:54:30,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:30,402 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 10:54:30,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 10:54:30,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:30,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:30,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:30,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:30,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:30,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:30,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:30,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:30,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-14 10:54:30,500 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 10:54:30,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 10:54:30,500 INFO L85 PathProgramCache]: Analyzing trace with hash 421645830, now seen corresponding path program 1 times [2021-11-14 10:54:30,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 10:54:30,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948917374] [2021-11-14 10:54:30,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:30,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 10:54:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 10:54:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 10:54:30,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 10:54:30,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948917374] [2021-11-14 10:54:30,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948917374] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 10:54:30,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170421292] [2021-11-14 10:54:30,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:30,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 10:54:30,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 10:54:30,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 10:54:30,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-14 10:54:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 10:54:30,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-14 10:54:30,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 10:54:31,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 10:54:31,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 10:54:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 10:54:31,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170421292] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-14 10:54:31,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-14 10:54:31,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2021-11-14 10:54:31,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559435867] [2021-11-14 10:54:31,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 10:54:31,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-14 10:54:31,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 10:54:31,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-14 10:54:31,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-11-14 10:54:31,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:31,502 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 10:54:31,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 10:54:31,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:31,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:31,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:31,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:31,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:31,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:31,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:31,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:31,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:31,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:31,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-14 10:54:31,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 10:54:31,789 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 10:54:31,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 10:54:31,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1588344948, now seen corresponding path program 1 times [2021-11-14 10:54:31,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 10:54:31,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135906236] [2021-11-14 10:54:31,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:31,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 10:54:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 10:54:31,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 10:54:31,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 10:54:31,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135906236] [2021-11-14 10:54:31,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135906236] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 10:54:31,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885993360] [2021-11-14 10:54:31,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:31,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 10:54:31,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 10:54:31,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 10:54:31,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-14 10:54:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 10:54:31,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-14 10:54:31,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 10:54:32,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 10:54:32,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 10:54:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 10:54:32,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885993360] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-14 10:54:32,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-14 10:54:32,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2021-11-14 10:54:32,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652030059] [2021-11-14 10:54:32,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 10:54:32,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-14 10:54:32,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 10:54:32,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-14 10:54:32,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-11-14 10:54:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:32,373 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 10:54:32,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 10:54:32,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:32,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:32,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:32,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:32,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:32,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:32,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-14 10:54:32,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 10:54:32,671 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 10:54:32,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 10:54:32,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1608036650, now seen corresponding path program 1 times [2021-11-14 10:54:32,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 10:54:32,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367853617] [2021-11-14 10:54:32,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:32,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 10:54:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 10:54:33,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 10:54:33,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 10:54:33,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367853617] [2021-11-14 10:54:33,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367853617] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 10:54:33,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543091217] [2021-11-14 10:54:33,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:33,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 10:54:33,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 10:54:33,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 10:54:33,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-14 10:54:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 10:54:33,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-14 10:54:33,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 10:54:33,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-14 10:54:33,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-14 10:54:33,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-14 10:54:33,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 10:54:33,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 10:54:35,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 10:54:35,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543091217] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 10:54:35,813 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 10:54:35,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20, 11] total 37 [2021-11-14 10:54:35,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107069444] [2021-11-14 10:54:35,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 10:54:35,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-14 10:54:35,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 10:54:35,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-14 10:54:35,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1203, Unknown=1, NotChecked=0, Total=1332 [2021-11-14 10:54:35,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:35,815 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 10:54:35,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.486486486486487) internal successors, (203), 37 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 10:54:35,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:35,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:35,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:35,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:35,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:35,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:35,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:36,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:36,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:36,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:36,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:36,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:36,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:36,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-14 10:54:36,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-14 10:54:36,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 10:54:36,837 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 10:54:36,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 10:54:36,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1482598418, now seen corresponding path program 2 times [2021-11-14 10:54:36,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 10:54:36,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344348604] [2021-11-14 10:54:36,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:36,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 10:54:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 10:54:36,943 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 10:54:36,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 10:54:36,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344348604] [2021-11-14 10:54:36,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344348604] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 10:54:36,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220663575] [2021-11-14 10:54:36,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-14 10:54:36,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 10:54:36,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 10:54:36,963 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 10:54:36,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-14 10:54:37,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-14 10:54:37,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 10:54:37,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-14 10:54:37,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 10:54:37,337 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 10:54:37,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 10:54:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-14 10:54:37,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220663575] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 10:54:37,504 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 10:54:37,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 22 [2021-11-14 10:54:37,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652193233] [2021-11-14 10:54:37,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 10:54:37,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-14 10:54:37,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 10:54:37,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-14 10:54:37,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2021-11-14 10:54:37,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:37,505 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 10:54:37,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.590909090909092) internal successors, (189), 22 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 10:54:37,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:37,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:37,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:37,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:37,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:37,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:37,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-14 10:54:37,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:38,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:38,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:38,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:38,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:38,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:38,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:38,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-14 10:54:38,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-14 10:54:38,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-14 10:54:38,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 10:54:38,336 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 10:54:38,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 10:54:38,337 INFO L85 PathProgramCache]: Analyzing trace with hash 802378100, now seen corresponding path program 3 times [2021-11-14 10:54:38,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 10:54:38,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960977671] [2021-11-14 10:54:38,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:38,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 10:54:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 10:54:38,420 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 10:54:38,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 10:54:38,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960977671] [2021-11-14 10:54:38,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960977671] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 10:54:38,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988255861] [2021-11-14 10:54:38,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-14 10:54:38,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 10:54:38,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 10:54:38,436 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 10:54:38,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-14 10:54:38,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-14 10:54:38,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 10:54:38,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-14 10:54:38,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 10:54:38,783 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 10:54:38,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 10:54:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 10:54:39,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988255861] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 10:54:39,049 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 10:54:39,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2021-11-14 10:54:39,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316642465] [2021-11-14 10:54:39,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 10:54:39,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-14 10:54:39,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 10:54:39,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-14 10:54:39,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2021-11-14 10:54:39,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:39,050 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 10:54:39,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.583333333333333) internal successors, (182), 24 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 10:54:39,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:39,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:39,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:39,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:39,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:39,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:39,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-11-14 10:54:39,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-11-14 10:54:39,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 10:54:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 10:54:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 10:54:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-14 10:54:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-14 10:54:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 10:54:39,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-14 10:54:39,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 10:54:39,511 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 10:54:39,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 10:54:39,511 INFO L85 PathProgramCache]: Analyzing trace with hash 181651626, now seen corresponding path program 4 times [2021-11-14 10:54:39,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 10:54:39,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392619508] [2021-11-14 10:54:39,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 10:54:39,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 10:54:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 10:54:39,554 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 10:54:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 10:54:39,589 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 10:54:39,590 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 10:54:39,590 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-14 10:54:39,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-11-14 10:54:39,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2021-11-14 10:54:39,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-14 10:54:39,595 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1] [2021-11-14 10:54:39,598 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-14 10:54:39,598 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-14 10:54:39,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 10:54:39 BasicIcfg [2021-11-14 10:54:39,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-14 10:54:39,668 INFO L158 Benchmark]: Toolchain (without parser) took 10877.30ms. Allocated memory was 432.0MB in the beginning and 645.9MB in the end (delta: 213.9MB). Free memory was 373.8MB in the beginning and 597.8MB in the end (delta: -224.0MB). Peak memory consumption was 355.9MB. Max. memory is 16.0GB. [2021-11-14 10:54:39,668 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 432.0MB. Free memory is still 390.7MB. There was no memory consumed. Max. memory is 16.0GB. [2021-11-14 10:54:39,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.85ms. Allocated memory was 432.0MB in the beginning and 645.9MB in the end (delta: 213.9MB). Free memory was 373.6MB in the beginning and 614.5MB in the end (delta: -240.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.0GB. [2021-11-14 10:54:39,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.48ms. Allocated memory is still 645.9MB. Free memory was 614.5MB in the beginning and 613.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2021-11-14 10:54:39,668 INFO L158 Benchmark]: Boogie Preprocessor took 15.00ms. Allocated memory is still 645.9MB. Free memory was 613.4MB in the beginning and 611.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2021-11-14 10:54:39,668 INFO L158 Benchmark]: RCFGBuilder took 385.11ms. Allocated memory is still 645.9MB. Free memory was 611.3MB in the beginning and 587.2MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2021-11-14 10:54:39,669 INFO L158 Benchmark]: TraceAbstraction took 10197.55ms. Allocated memory is still 645.9MB. Free memory was 587.2MB in the beginning and 597.8MB in the end (delta: -10.6MB). Peak memory consumption was 354.4MB. Max. memory is 16.0GB. [2021-11-14 10:54:39,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 432.0MB. Free memory is still 390.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 253.85ms. Allocated memory was 432.0MB in the beginning and 645.9MB in the end (delta: 213.9MB). Free memory was 373.6MB in the beginning and 614.5MB in the end (delta: -240.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 21.48ms. Allocated memory is still 645.9MB. Free memory was 614.5MB in the beginning and 613.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 15.00ms. Allocated memory is still 645.9MB. Free memory was 613.4MB in the beginning and 611.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 385.11ms. Allocated memory is still 645.9MB. Free memory was 611.3MB in the beginning and 587.2MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 10197.55ms. Allocated memory is still 645.9MB. Free memory was 587.2MB in the beginning and 597.8MB in the end (delta: -10.6MB). Peak memory consumption was 354.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3030, positive: 1996, positive conditional: 1342, positive unconditional: 654, negative: 1034, negative conditional: 1025, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2008, positive: 1996, positive conditional: 1342, positive unconditional: 654, negative: 12, negative conditional: 3, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2008, positive: 1996, positive conditional: 1342, positive unconditional: 654, negative: 12, negative conditional: 3, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2032, positive: 1996, positive conditional: 1152, positive unconditional: 844, negative: 36, negative conditional: 24, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2032, positive: 1996, positive conditional: 769, positive unconditional: 1227, negative: 36, negative conditional: 9, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2032, positive: 1996, positive conditional: 769, positive unconditional: 1227, negative: 36, negative conditional: 9, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 612, positive: 598, positive conditional: 0, positive unconditional: 598, negative: 14, negative conditional: 5, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 612, positive: 598, positive conditional: 0, positive unconditional: 598, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 14, negative conditional: 5, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 83, negative conditional: 18, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2032, positive: 1398, positive conditional: 769, positive unconditional: 629, negative: 22, negative conditional: 4, negative unconditional: 18, unknown: 612, unknown conditional: 5, unknown unconditional: 607] , Statistics on independence cache: Total cache size (in pairs): 612, Positive cache size: 598, Positive conditional cache size: 0, Positive unconditional cache size: 598, Negative cache size: 14, Negative conditional cache size: 5, Negative unconditional cache size: 9, Eliminated conditions: 398, Maximal queried relation: 8, Independence queries for same thread: 1022 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 88.41ms, Number of persistent set computation: 137, Number of trivial persistent sets: 106, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 663, positive: 654, positive conditional: 0, positive unconditional: 654, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3030, positive: 1996, positive conditional: 1342, positive unconditional: 654, negative: 1034, negative conditional: 1025, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2008, positive: 1996, positive conditional: 1342, positive unconditional: 654, negative: 12, negative conditional: 3, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2008, positive: 1996, positive conditional: 1342, positive unconditional: 654, negative: 12, negative conditional: 3, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2032, positive: 1996, positive conditional: 1152, positive unconditional: 844, negative: 36, negative conditional: 24, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2032, positive: 1996, positive conditional: 769, positive unconditional: 1227, negative: 36, negative conditional: 9, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2032, positive: 1996, positive conditional: 769, positive unconditional: 1227, negative: 36, negative conditional: 9, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 612, positive: 598, positive conditional: 0, positive unconditional: 598, negative: 14, negative conditional: 5, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 612, positive: 598, positive conditional: 0, positive unconditional: 598, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 14, negative conditional: 5, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 83, negative conditional: 18, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2032, positive: 1398, positive conditional: 769, positive unconditional: 629, negative: 22, negative conditional: 4, negative unconditional: 18, unknown: 612, unknown conditional: 5, unknown unconditional: 607] , Statistics on independence cache: Total cache size (in pairs): 612, Positive cache size: 598, Positive conditional cache size: 0, Positive unconditional cache size: 598, Negative cache size: 14, Negative conditional cache size: 5, Negative unconditional cache size: 9, Eliminated conditions: 398, Maximal queried relation: 8, Independence queries for same thread: 1022 - 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 - CounterExampleResult [Line: 87]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L41] 0 int* A; VAL [A={0:0}] [L42] 0 int counter, N; VAL [A={0:0}, counter=0, N=0] [L75] 0 pthread_t t1, t2; VAL [A={0:0}, counter=0, N=0, t1={5:0}, t2={3:0}] [L77] 0 N = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, A={0:0}, counter=0, N=1, t1={5:0}, t2={3:0}] [L78] CALL, EXPR 0 create_fresh_int_array(N) [L93] CALL 0 assume_abort_if_not(size >= 0) [L38] COND FALSE 0 !(!cond) VAL [\old(cond)=1, A={0:0}, cond=1, counter=0, N=1] [L93] RET 0 assume_abort_if_not(size >= 0) [L94] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L38] COND FALSE 0 !(!cond) VAL [\old(cond)=1, A={0:0}, cond=1, counter=0, N=1] [L94] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L96] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); VAL [\old(size)=1, A={0:0}, arr={-3:0}, counter=0, malloc(sizeof(int) * (size_t)size)={-3:0}, N=1, size=1] [L97] 0 int i = 0; VAL [\old(size)=1, A={0:0}, arr={-3:0}, counter=0, i=0, N=1, size=1] [L97] COND TRUE 0 i < size VAL [\old(size)=1, A={0:0}, arr={-3:0}, counter=0, i=0, N=1, size=1] [L98] 0 arr[i] = __VERIFIER_nondet_int() VAL [\old(size)=1, __VERIFIER_nondet_int()=-4, A={0:0}, arr={-3:0}, counter=0, i=0, N=1, size=1] [L97] 0 i++ VAL [\old(size)=1, A={0:0}, arr={-3:0}, counter=0, i=1, N=1, size=1] [L97] COND FALSE 0 !(i < size) VAL [\old(size)=1, A={0:0}, arr={-3:0}, counter=0, i=1, N=1, size=1] [L100] 0 return arr; VAL [\old(size)=1, \result={-3:0}, A={0:0}, arr={-3:0}, counter=0, i=1, N=1, size=1] [L78] RET, EXPR 0 create_fresh_int_array(N) [L78] 0 A = create_fresh_int_array(N) VAL [A={-3:0}, counter=0, create_fresh_int_array(N)={-3:0}, N=1, t1={5:0}, t2={3:0}] [L81] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [A={-3:0}, counter=0, N=1, pthread_create(&t1, 0, thread1, 0)=-2, t1={5:0}, t2={3:0}] [L49] 1 int i=0; VAL [A={-3:0}, counter=0, i=0, N=1] [L82] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [A={-3:0}, counter=0, N=1, pthread_create(&t2, 0, thread2, 0)=-1, t1={5:0}, t2={3:0}] [L62] 2 int i=0; VAL [A={-3:0}, counter=0, i=0, N=1] [L83] 0 \read(t1) VAL [\read(t1)=-2, A={-3:0}, counter=0, N=1, t1={5:0}, t2={3:0}] [L49] COND TRUE 1 i= 0 || a >= -2147483648 - b) [L38] COND FALSE 1 !(!cond) [L110] RET 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L111] CALL 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L38] COND FALSE 1 !(!cond) [L111] RET 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L112] 1 return a + b; [L51] RET, EXPR 1 plus(counter, A[i]) [L51] 1 int tmp = plus(counter, A[i]); [L62] COND TRUE 2 i= b - 2147483648) [L38] COND FALSE 2 !(!cond) [L104] RET 2 assume_abort_if_not(b <= 0 || a >= b - 2147483648) [L105] CALL 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L38] COND FALSE 2 !(!cond) [L105] RET 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L106] 2 return a - b; [L64] RET, EXPR 2 minus(counter, A[i]) [L64] 2 int tmp = minus(counter, A[i]); [L54] 1 counter = tmp VAL [A={-3:0}, counter=-4, i=0, N=1, tmp=-4] [L49] 1 i++ VAL [A={-3:0}, counter=-4, i=1, N=1, tmp=-4] [L67] 2 counter = tmp VAL [A={-3:0}, counter=4, i=0, N=1, tmp=4] [L62] 2 i++ VAL [A={-3:0}, counter=4, i=1, N=1, tmp=4] [L49] COND FALSE 1 !(i