/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/triangular-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-07 19:28:34,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-07 19:28:34,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-07 19:28:34,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-07 19:28:34,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-07 19:28:34,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-07 19:28:34,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-07 19:28:34,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-07 19:28:34,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-07 19:28:34,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-07 19:28:34,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-07 19:28:34,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-07 19:28:34,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-07 19:28:34,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-07 19:28:34,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-07 19:28:34,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-07 19:28:34,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-07 19:28:34,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-07 19:28:34,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-07 19:28:34,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-07 19:28:34,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-07 19:28:34,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-07 19:28:34,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-07 19:28:34,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-07 19:28:34,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-07 19:28:34,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-07 19:28:34,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-07 19:28:34,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-07 19:28:34,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-07 19:28:34,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-07 19:28:34,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-07 19:28:34,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-07 19:28:34,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-07 19:28:34,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-07 19:28:34,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-07 19:28:34,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-07 19:28:34,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-07 19:28:34,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-07 19:28:34,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-07 19:28:34,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-07 19:28:34,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-07 19:28:34,800 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.epf [2021-08-07 19:28:34,822 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-07 19:28:34,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-07 19:28:34,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-07 19:28:34,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-07 19:28:34,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-07 19:28:34,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-07 19:28:34,825 INFO L138 SettingsManager]: * Use SBE=true [2021-08-07 19:28:34,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-07 19:28:34,825 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-07 19:28:34,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-07 19:28:34,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-07 19:28:34,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-07 19:28:34,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-07 19:28:34,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-07 19:28:34,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-07 19:28:34,827 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-07 19:28:34,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-07 19:28:34,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-07 19:28:34,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-07 19:28:34,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-07 19:28:34,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-07 19:28:34,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-07 19:28:34,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-07 19:28:34,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 19:28:34,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-07 19:28:34,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-07 19:28:34,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-07 19:28:34,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-07 19:28:34,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-07 19:28:34,828 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-07 19:28:34,828 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-07 19:28:34,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-07 19:28:34,828 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-08-07 19:28:34,829 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-07 19:28:35,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-07 19:28:35,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-07 19:28:35,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-07 19:28:35,098 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-07 19:28:35,098 INFO L275 PluginConnector]: CDTParser initialized [2021-08-07 19:28:35,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/triangular-2.i [2021-08-07 19:28:35,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1dc329de/fcdb106848c34fd49892e83825e60564/FLAGb11cb2597 [2021-08-07 19:28:35,512 INFO L306 CDTParser]: Found 1 translation units. [2021-08-07 19:28:35,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i [2021-08-07 19:28:35,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1dc329de/fcdb106848c34fd49892e83825e60564/FLAGb11cb2597 [2021-08-07 19:28:35,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1dc329de/fcdb106848c34fd49892e83825e60564 [2021-08-07 19:28:35,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-07 19:28:35,927 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-07 19:28:35,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-07 19:28:35,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-07 19:28:35,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-07 19:28:35,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 07:28:35" (1/1) ... [2021-08-07 19:28:35,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2fdc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:35, skipping insertion in model container [2021-08-07 19:28:35,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 07:28:35" (1/1) ... [2021-08-07 19:28:35,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-07 19:28:35,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-07 19:28:36,233 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i[30952,30965] [2021-08-07 19:28:36,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-07 19:28:36,239 INFO L203 MainTranslator]: Completed pre-run [2021-08-07 19:28:36,262 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i[30952,30965] [2021-08-07 19:28:36,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-07 19:28:36,283 INFO L208 MainTranslator]: Completed translation [2021-08-07 19:28:36,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:36 WrapperNode [2021-08-07 19:28:36,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-07 19:28:36,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-07 19:28:36,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-07 19:28:36,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-07 19:28:36,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:36" (1/1) ... [2021-08-07 19:28:36,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:36" (1/1) ... [2021-08-07 19:28:36,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-07 19:28:36,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-07 19:28:36,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-07 19:28:36,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-07 19:28:36,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:36" (1/1) ... [2021-08-07 19:28:36,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:36" (1/1) ... [2021-08-07 19:28:36,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:36" (1/1) ... [2021-08-07 19:28:36,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:36" (1/1) ... [2021-08-07 19:28:36,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:36" (1/1) ... [2021-08-07 19:28:36,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:36" (1/1) ... [2021-08-07 19:28:36,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:36" (1/1) ... [2021-08-07 19:28:36,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-07 19:28:36,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-07 19:28:36,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-07 19:28:36,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-07 19:28:36,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:36" (1/1) ... [2021-08-07 19:28:36,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 19:28:36,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 19:28:36,353 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) [2021-08-07 19:28:36,355 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 [2021-08-07 19:28:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-08-07 19:28:36,379 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-08-07 19:28:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-08-07 19:28:36,379 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-08-07 19:28:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-07 19:28:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-07 19:28:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-07 19:28:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-07 19:28:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-07 19:28:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-07 19:28:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-07 19:28:36,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-07 19:28:36,380 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-07 19:28:36,592 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-07 19:28:36,592 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-07 19:28:36,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 07:28:36 BoogieIcfgContainer [2021-08-07 19:28:36,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-07 19:28:36,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-07 19:28:36,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-07 19:28:36,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-07 19:28:36,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.08 07:28:35" (1/3) ... [2021-08-07 19:28:36,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1106a448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 07:28:36, skipping insertion in model container [2021-08-07 19:28:36,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 07:28:36" (2/3) ... [2021-08-07 19:28:36,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1106a448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 07:28:36, skipping insertion in model container [2021-08-07 19:28:36,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 07:28:36" (3/3) ... [2021-08-07 19:28:36,598 INFO L111 eAbstractionObserver]: Analyzing ICFG triangular-2.i [2021-08-07 19:28:36,601 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-07 19:28:36,601 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-07 19:28:36,601 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-07 19:28:36,601 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-07 19:28:36,618 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,619 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,619 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,619 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,619 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,619 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,619 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,619 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,619 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,620 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,620 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,620 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,620 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,620 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,620 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,620 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,620 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,621 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,621 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,621 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,621 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,621 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,621 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,621 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,621 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,621 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,622 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,622 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,622 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,622 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,623 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,623 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,623 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,623 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,623 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,623 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,623 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,623 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,624 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,624 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,624 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,624 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,624 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,624 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,624 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,624 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,625 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,625 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,625 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,625 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,625 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,625 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,627 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,627 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,627 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,627 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,627 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,627 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,631 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,631 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,631 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,631 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,631 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,631 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 19:28:36,633 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-07 19:28:36,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-07 19:28:36,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 19:28:36,676 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) [2021-08-07 19:28:36,691 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 [2021-08-07 19:28:36,721 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-07 19:28:36,725 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, mConcurrency=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 [2021-08-07 19:28:36,725 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-07 19:28:36,836 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 19:28:36,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 19:28:36,840 INFO L82 PathProgramCache]: Analyzing trace with hash 2112281486, now seen corresponding path program 1 times [2021-08-07 19:28:36,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 19:28:36,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245251702] [2021-08-07 19:28:36,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 19:28:36,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 19:28:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 19:28:37,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 19:28:37,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 19:28:37,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245251702] [2021-08-07 19:28:37,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245251702] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 19:28:37,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 19:28:37,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-07 19:28:37,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111615427] [2021-08-07 19:28:37,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-07 19:28:37,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 19:28:37,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-07 19:28:37,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-07 19:28:37,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:37,200 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 19:28:37,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2021-08-07 19:28:37,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:37,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:37,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-07 19:28:37,285 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 19:28:37,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 19:28:37,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1321544354, now seen corresponding path program 1 times [2021-08-07 19:28:37,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 19:28:37,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940009223] [2021-08-07 19:28:37,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 19:28:37,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 19:28:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 19:28:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 19:28:37,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 19:28:37,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940009223] [2021-08-07 19:28:37,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940009223] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 19:28:37,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 19:28:37,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-07 19:28:37,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588858839] [2021-08-07 19:28:37,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-07 19:28:37,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 19:28:37,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-07 19:28:37,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-07 19:28:37,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:37,354 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 19:28:37,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 19:28:37,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:37,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:37,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:37,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:37,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-07 19:28:37,396 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 19:28:37,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 19:28:37,397 INFO L82 PathProgramCache]: Analyzing trace with hash -893287732, now seen corresponding path program 1 times [2021-08-07 19:28:37,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 19:28:37,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134211949] [2021-08-07 19:28:37,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 19:28:37,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 19:28:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 19:28:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 19:28:37,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 19:28:37,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134211949] [2021-08-07 19:28:37,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134211949] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:37,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118680230] [2021-08-07 19:28:37,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 19:28:37,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 19:28:37,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 19:28:37,481 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) [2021-08-07 19:28:37,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-07 19:28:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 19:28:37,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-07 19:28:37,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 19:28:37,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 19:28:37,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118680230] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:37,811 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 19:28:37,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-08-07 19:28:37,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446842925] [2021-08-07 19:28:37,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-07 19:28:37,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 19:28:37,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-07 19:28:37,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-07 19:28:37,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:37,813 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 19:28:37,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 19:28:37,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:37,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:37,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:37,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:37,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:37,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:37,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-07 19:28:38,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-08-07 19:28:38,061 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 19:28:38,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 19:28:38,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1491858914, now seen corresponding path program 2 times [2021-08-07 19:28:38,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 19:28:38,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441664490] [2021-08-07 19:28:38,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 19:28:38,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 19:28:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 19:28:38,150 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 19:28:38,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 19:28:38,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441664490] [2021-08-07 19:28:38,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441664490] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:38,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343406218] [2021-08-07 19:28:38,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 19:28:38,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 19:28:38,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 19:28:38,152 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) [2021-08-07 19:28:38,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-07 19:28:38,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 19:28:38,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 19:28:38,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-07 19:28:38,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 19:28:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 19:28:38,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343406218] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:38,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 19:28:38,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-08-07 19:28:38,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587501806] [2021-08-07 19:28:38,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-07 19:28:38,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 19:28:38,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-07 19:28:38,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-08-07 19:28:38,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:38,519 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 19:28:38,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 19:28:38,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:38,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:38,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:38,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:38,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:38,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:38,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:38,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-07 19:28:38,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-07 19:28:38,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 19:28:38,811 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 19:28:38,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 19:28:38,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1741994484, now seen corresponding path program 3 times [2021-08-07 19:28:38,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 19:28:38,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773227143] [2021-08-07 19:28:38,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 19:28:38,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 19:28:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 19:28:38,878 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 19:28:38,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 19:28:38,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773227143] [2021-08-07 19:28:38,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773227143] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:38,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537061214] [2021-08-07 19:28:38,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 19:28:38,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 19:28:38,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 19:28:38,897 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) [2021-08-07 19:28:38,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-07 19:28:39,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-07 19:28:39,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 19:28:39,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-07 19:28:39,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 19:28:39,554 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-08-07 19:28:39,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537061214] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:39,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 19:28:39,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-08-07 19:28:39,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313849469] [2021-08-07 19:28:39,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-07 19:28:39,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 19:28:39,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-07 19:28:39,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-08-07 19:28:39,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:39,562 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 19:28:39,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 15 states have internal predecessors, (98), 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) [2021-08-07 19:28:39,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:39,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:39,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:39,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-07 19:28:39,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:39,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:39,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:39,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:39,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-07 19:28:39,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 19:28:39,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-07 19:28:40,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 19:28:40,110 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 19:28:40,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 19:28:40,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1904809963, now seen corresponding path program 1 times [2021-08-07 19:28:40,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 19:28:40,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232253542] [2021-08-07 19:28:40,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 19:28:40,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 19:28:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 19:28:40,222 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-07 19:28:40,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 19:28:40,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232253542] [2021-08-07 19:28:40,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232253542] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:40,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139752719] [2021-08-07 19:28:40,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 19:28:40,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 19:28:40,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 19:28:40,224 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) [2021-08-07 19:28:40,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-07 19:28:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 19:28:40,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-07 19:28:40,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 19:28:40,877 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-07 19:28:40,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139752719] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:40,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 19:28:40,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2021-08-07 19:28:40,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563933582] [2021-08-07 19:28:40,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-07 19:28:40,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 19:28:40,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-07 19:28:40,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-08-07 19:28:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:40,879 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 19:28:40,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 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) [2021-08-07 19:28:40,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:40,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:40,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:40,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-07 19:28:40,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 19:28:40,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:40,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:40,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-07 19:28:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 19:28:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-07 19:28:41,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-07 19:28:41,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 19:28:41,212 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 19:28:41,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 19:28:41,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1884293098, now seen corresponding path program 2 times [2021-08-07 19:28:41,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 19:28:41,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813357829] [2021-08-07 19:28:41,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 19:28:41,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 19:28:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 19:28:41,311 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 68 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-07 19:28:41,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 19:28:41,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813357829] [2021-08-07 19:28:41,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813357829] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:41,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552022836] [2021-08-07 19:28:41,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 19:28:41,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 19:28:41,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 19:28:41,326 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) [2021-08-07 19:28:41,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-07 19:28:41,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 19:28:41,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 19:28:41,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-07 19:28:41,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 19:28:41,879 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-07 19:28:41,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552022836] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 19:28:41,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-07 19:28:41,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 15 [2021-08-07 19:28:41,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194563241] [2021-08-07 19:28:41,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-07 19:28:41,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 19:28:41,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-07 19:28:41,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-08-07 19:28:41,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:41,881 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 19:28:41,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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) [2021-08-07 19:28:41,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:41,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:41,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:41,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-07 19:28:41,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 19:28:41,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-07 19:28:41,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:42,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:42,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:42,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:42,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-07 19:28:42,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 19:28:42,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-07 19:28:42,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-07 19:28:42,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-07 19:28:42,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 19:28:42,286 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 19:28:42,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 19:28:42,287 INFO L82 PathProgramCache]: Analyzing trace with hash 447974468, now seen corresponding path program 3 times [2021-08-07 19:28:42,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 19:28:42,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304618950] [2021-08-07 19:28:42,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 19:28:42,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 19:28:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 19:28:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-08-07 19:28:42,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 19:28:42,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304618950] [2021-08-07 19:28:42,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304618950] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:42,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728747071] [2021-08-07 19:28:42,416 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 19:28:42,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 19:28:42,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 19:28:42,419 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 19:28:42,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-07 19:28:42,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-08-07 19:28:42,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 19:28:42,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-07 19:28:42,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 19:28:43,256 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-08-07 19:28:43,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728747071] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:43,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 19:28:43,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 15 [2021-08-07 19:28:43,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030803732] [2021-08-07 19:28:43,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-07 19:28:43,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 19:28:43,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-07 19:28:43,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-08-07 19:28:43,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:43,258 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 19:28:43,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 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) [2021-08-07 19:28:43,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:43,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:43,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:43,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-07 19:28:43,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 19:28:43,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-07 19:28:43,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-07 19:28:43,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:43,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:43,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:43,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-07 19:28:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 19:28:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-07 19:28:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-07 19:28:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 19:28:43,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-07 19:28:43,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 19:28:43,765 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 19:28:43,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 19:28:43,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1802725825, now seen corresponding path program 4 times [2021-08-07 19:28:43,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 19:28:43,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178403363] [2021-08-07 19:28:43,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 19:28:43,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 19:28:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 19:28:43,913 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 19:28:43,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 19:28:43,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178403363] [2021-08-07 19:28:43,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178403363] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:43,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650831397] [2021-08-07 19:28:43,914 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 19:28:43,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 19:28:43,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 19:28:43,915 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 19:28:43,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-07 19:28:44,172 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 19:28:44,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 19:28:44,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-07 19:28:44,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 19:28:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 19:28:44,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650831397] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 19:28:44,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 19:28:44,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 16 [2021-08-07 19:28:44,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859338392] [2021-08-07 19:28:44,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-07 19:28:44,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 19:28:44,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-07 19:28:44,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-08-07 19:28:44,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:44,811 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 19:28:44,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.375) internal successors, (102), 16 states have internal predecessors, (102), 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) [2021-08-07 19:28:44,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:44,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:44,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:44,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-07 19:28:44,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 19:28:44,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-07 19:28:44,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-08-07 19:28:44,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 19:28:44,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 19:28:45,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:45,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 19:28:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 19:28:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-07 19:28:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-07 19:28:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-07 19:28:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-07 19:28:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 19:28:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 19:28:45,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-07 19:28:45,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-08-07 19:28:45,344 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 19:28:45,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 19:28:45,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1552492826, now seen corresponding path program 5 times [2021-08-07 19:28:45,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 19:28:45,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680137985] [2021-08-07 19:28:45,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 19:28:45,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 19:28:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-07 19:28:45,368 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-07 19:28:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-07 19:28:45,419 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-07 19:28:45,419 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-07 19:28:45,420 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-07 19:28:45,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-07 19:28:45,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-07 19:28:45,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-07 19:28:45,430 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-07 19:28:45,430 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-07 19:28:45,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 07:28:45 BasicIcfg [2021-08-07 19:28:45,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-07 19:28:45,519 INFO L168 Benchmark]: Toolchain (without parser) took 9592.39 ms. Allocated memory was 247.5 MB in the beginning and 434.1 MB in the end (delta: 186.6 MB). Free memory was 211.0 MB in the beginning and 176.0 MB in the end (delta: 35.0 MB). Peak memory consumption was 221.0 MB. Max. memory is 8.0 GB. [2021-08-07 19:28:45,519 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 247.5 MB. Free memory was 228.8 MB in the beginning and 228.7 MB in the end (delta: 84.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-07 19:28:45,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.61 ms. Allocated memory is still 247.5 MB. Free memory was 210.8 MB in the beginning and 220.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-08-07 19:28:45,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.36 ms. Allocated memory is still 247.5 MB. Free memory was 220.7 MB in the beginning and 218.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-07 19:28:45,520 INFO L168 Benchmark]: Boogie Preprocessor took 13.34 ms. Allocated memory is still 247.5 MB. Free memory was 218.7 MB in the beginning and 217.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-07 19:28:45,520 INFO L168 Benchmark]: RCFGBuilder took 273.40 ms. Allocated memory is still 247.5 MB. Free memory was 217.6 MB in the beginning and 195.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-08-07 19:28:45,520 INFO L168 Benchmark]: TraceAbstraction took 8923.97 ms. Allocated memory was 247.5 MB in the beginning and 434.1 MB in the end (delta: 186.6 MB). Free memory was 195.1 MB in the beginning and 176.0 MB in the end (delta: 19.1 MB). Peak memory consumption was 206.8 MB. Max. memory is 8.0 GB. [2021-08-07 19:28:45,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 247.5 MB. Free memory was 228.8 MB in the beginning and 228.7 MB in the end (delta: 84.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 354.61 ms. Allocated memory is still 247.5 MB. Free memory was 210.8 MB in the beginning and 220.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.36 ms. Allocated memory is still 247.5 MB. Free memory was 220.7 MB in the beginning and 218.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.34 ms. Allocated memory is still 247.5 MB. Free memory was 218.7 MB in the beginning and 217.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 273.40 ms. Allocated memory is still 247.5 MB. Free memory was 217.6 MB in the beginning and 195.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8923.97 ms. Allocated memory was 247.5 MB in the beginning and 434.1 MB in the end (delta: 186.6 MB). Free memory was 195.1 MB in the beginning and 176.0 MB in the end (delta: 19.1 MB). Peak memory consumption was 206.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7647, positive: 6601, positive conditional: 5676, positive unconditional: 925, negative: 1046, negative conditional: 1040, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6648, positive: 6601, positive conditional: 5676, positive unconditional: 925, negative: 47, negative conditional: 41, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6648, positive: 6601, positive conditional: 5676, positive unconditional: 925, negative: 47, negative conditional: 41, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6994, positive: 6601, positive conditional: 5655, positive unconditional: 946, negative: 393, negative conditional: 346, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6994, positive: 6601, positive conditional: 3038, positive unconditional: 3563, negative: 393, negative conditional: 121, negative unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6994, positive: 6601, positive conditional: 3038, positive unconditional: 3563, negative: 393, negative conditional: 121, negative unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 868, positive: 825, positive conditional: 20, positive unconditional: 805, negative: 43, negative conditional: 37, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 868, positive: 805, positive conditional: 0, positive unconditional: 805, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 63, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 43, negative conditional: 37, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 116, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 96, negative conditional: 38, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6994, positive: 5776, positive conditional: 3018, positive unconditional: 2758, negative: 350, negative conditional: 84, negative unconditional: 266, unknown: 868, unknown conditional: 57, unknown unconditional: 811] , Statistics on independence cache: Total cache size (in pairs): 868, Positive cache size: 825, Positive conditional cache size: 20, Positive unconditional cache size: 805, Negative cache size: 43, Negative conditional cache size: 37, Negative unconditional cache size: 6, Eliminated conditions: 2842, Maximal queried relation: 9, Independence queries for same thread: 999 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 111, Number of persistent set computation: 99, Number of trivial persistent sets: 78, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 931, positive: 925, positive conditional: 0, positive unconditional: 925, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7647, positive: 6601, positive conditional: 5676, positive unconditional: 925, negative: 1046, negative conditional: 1040, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6648, positive: 6601, positive conditional: 5676, positive unconditional: 925, negative: 47, negative conditional: 41, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6648, positive: 6601, positive conditional: 5676, positive unconditional: 925, negative: 47, negative conditional: 41, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6994, positive: 6601, positive conditional: 5655, positive unconditional: 946, negative: 393, negative conditional: 346, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6994, positive: 6601, positive conditional: 3038, positive unconditional: 3563, negative: 393, negative conditional: 121, negative unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6994, positive: 6601, positive conditional: 3038, positive unconditional: 3563, negative: 393, negative conditional: 121, negative unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 868, positive: 825, positive conditional: 20, positive unconditional: 805, negative: 43, negative conditional: 37, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 868, positive: 805, positive conditional: 0, positive unconditional: 805, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 63, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 43, negative conditional: 37, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 116, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 96, negative conditional: 38, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6994, positive: 5776, positive conditional: 3018, positive unconditional: 2758, negative: 350, negative conditional: 84, negative unconditional: 266, unknown: 868, unknown conditional: 57, unknown unconditional: 811] , Statistics on independence cache: Total cache size (in pairs): 868, Positive cache size: 825, Positive conditional cache size: 20, Positive unconditional cache size: 805, Negative cache size: 43, Negative conditional cache size: 37, Negative unconditional cache size: 6, Eliminated conditions: 2842, Maximal queried relation: 9, Independence queries for same thread: 999 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L694] 0 int i = 3, j = 6; VAL [i=3, j=6] [L712] 0 pthread_t id1, id2; VAL [i=3, j=6] [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arg={0:0}, i=3, j=6] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arg={0:0}, arg={0:0}, i=3, j=6] [L716] 0 int condI = i >= (2*5 +6); VAL [arg={0:0}, arg={0:0}, i=3, j=6] [L696] 1 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=1] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=1] [L704] 2 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=1, k=0] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=0] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=0] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=0, k=2] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=2, k=0] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=2, k=1] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=2, k=1] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=1] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=1, k=2] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=1, k=3] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=1, k=3] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=3, k=2] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=2, k=3] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=2] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=4, k=2] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=2, k=4] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=4, k=3] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=3] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=3, k=4] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=3] [L696] COND FALSE 1 !(k < 5) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=3] [L704] 2 k++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L704] COND TRUE 2 k < 5 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=4] [L706] 2 j = i + 1 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=4] [L719] 0 int condJ = j >= (2*5 +6); VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=5] [L721] COND TRUE 0 condI || condJ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=5] [L722] 0 reach_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=4] - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 84 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 8769.6ms, OverallIterations: 10, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.3ms, PartialOrderReductionTime: 1561.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 83.7ms SsaConstructionTime, 260.1ms SatisfiabilityAnalysisTime, 4094.0ms InterpolantComputationTime, 1083 NumberOfCodeBlocks, 1068 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 981 ConstructedInterpolants, 0 QuantifiedInterpolants, 4003 SizeOfPredicates, 44 NumberOfNonLiveVariables, 1061 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 16 InterpolantComputations, 3 PerfectInterpolantSequences, 236/626 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-07 19:28:45,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-08-07 19:28:45,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...