./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d5cca3532c956cbfb3f8d24df68dd431ff61516e63bcc0106c0529c479d6a4ef --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:41:34,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:41:34,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:41:34,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:41:34,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:41:34,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:41:34,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:41:34,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:41:34,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:41:34,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:41:34,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:41:34,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:41:34,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:41:34,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:41:34,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:41:34,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:41:34,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:41:34,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:41:34,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:41:34,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:41:34,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:41:34,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:41:34,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:41:34,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:41:34,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:41:34,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:41:34,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:41:34,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:41:34,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:41:34,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:41:34,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:41:34,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:41:34,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:41:34,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:41:34,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:41:34,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:41:34,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:41:34,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:41:34,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:41:34,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:41:34,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:41:34,758 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:41:34,777 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:41:34,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:41:34,778 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:41:34,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:41:34,779 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:41:34,779 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:41:34,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:41:34,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:41:34,780 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:41:34,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:41:34,780 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:41:34,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:41:34,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:41:34,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:41:34,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:41:34,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:41:34,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:41:34,782 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:41:34,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:41:34,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:41:34,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:41:34,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:41:34,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:41:34,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:41:34,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:41:34,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:41:34,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:41:34,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:41:34,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:41:34,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:41:34,784 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:41:34,785 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:41:34,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:41:34,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:41:34,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5cca3532c956cbfb3f8d24df68dd431ff61516e63bcc0106c0529c479d6a4ef [2021-12-16 01:41:35,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:41:35,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:41:35,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:41:35,044 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:41:35,044 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:41:35,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i [2021-12-16 01:41:35,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1499949/e7b5249736684cf5a5c659f1284c5338/FLAG55d027a3b [2021-12-16 01:41:35,533 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:41:35,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i [2021-12-16 01:41:35,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1499949/e7b5249736684cf5a5c659f1284c5338/FLAG55d027a3b [2021-12-16 01:41:35,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1499949/e7b5249736684cf5a5c659f1284c5338 [2021-12-16 01:41:35,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:41:35,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:41:35,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:41:35,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:41:35,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:41:35,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:41:35" (1/1) ... [2021-12-16 01:41:35,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e07912f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:35, skipping insertion in model container [2021-12-16 01:41:35,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:41:35" (1/1) ... [2021-12-16 01:41:35,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:41:35,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:41:35,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i[23611,23624] [2021-12-16 01:41:35,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:41:35,978 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:41:36,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i[23611,23624] [2021-12-16 01:41:36,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:41:36,110 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:41:36,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:36 WrapperNode [2021-12-16 01:41:36,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:41:36,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:41:36,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:41:36,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:41:36,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:36" (1/1) ... [2021-12-16 01:41:36,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:36" (1/1) ... [2021-12-16 01:41:36,211 INFO L137 Inliner]: procedures = 145, calls = 317, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 519 [2021-12-16 01:41:36,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:41:36,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:41:36,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:41:36,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:41:36,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:36" (1/1) ... [2021-12-16 01:41:36,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:36" (1/1) ... [2021-12-16 01:41:36,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:36" (1/1) ... [2021-12-16 01:41:36,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:36" (1/1) ... [2021-12-16 01:41:36,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:36" (1/1) ... [2021-12-16 01:41:36,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:36" (1/1) ... [2021-12-16 01:41:36,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:36" (1/1) ... [2021-12-16 01:41:36,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:41:36,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:41:36,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:41:36,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:41:36,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:36" (1/1) ... [2021-12-16 01:41:36,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:41:36,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:41:36,301 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) [2021-12-16 01:41:36,307 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 [2021-12-16 01:41:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 01:41:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 01:41:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 01:41:36,334 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 01:41:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:41:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 01:41:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 01:41:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2021-12-16 01:41:36,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2021-12-16 01:41:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2021-12-16 01:41:36,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2021-12-16 01:41:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 01:41:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2021-12-16 01:41:36,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2021-12-16 01:41:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-12-16 01:41:36,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-12-16 01:41:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 01:41:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 01:41:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2021-12-16 01:41:36,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2021-12-16 01:41:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:41:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_destroy [2021-12-16 01:41:36,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_destroy [2021-12-16 01:41:36,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:41:36,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:41:36,467 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:41:36,468 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:41:39,348 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:41:39,357 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:41:39,357 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 01:41:39,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:41:39 BoogieIcfgContainer [2021-12-16 01:41:39,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:41:39,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:41:39,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:41:39,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:41:39,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:41:35" (1/3) ... [2021-12-16 01:41:39,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d09491b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:41:39, skipping insertion in model container [2021-12-16 01:41:39,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:36" (2/3) ... [2021-12-16 01:41:39,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d09491b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:41:39, skipping insertion in model container [2021-12-16 01:41:39,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:41:39" (3/3) ... [2021-12-16 01:41:39,367 INFO L111 eAbstractionObserver]: Analyzing ICFG cs_time_var_mutex.i [2021-12-16 01:41:39,372 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:41:39,373 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 01:41:39,415 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:41:39,420 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-16 01:41:39,421 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 01:41:39,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 94 states have (on average 1.3404255319148937) internal successors, (126), 95 states have internal predecessors, (126), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-12-16 01:41:39,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-16 01:41:39,465 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:41:39,465 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:41:39,466 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:41:39,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:41:39,470 INFO L85 PathProgramCache]: Analyzing trace with hash -5089063, now seen corresponding path program 1 times [2021-12-16 01:41:39,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:41:39,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968001290] [2021-12-16 01:41:39,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:41:39,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:42:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 01:42:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 01:42:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-16 01:42:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-16 01:42:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 01:42:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 01:42:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-16 01:42:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 01:42:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 01:42:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 01:42:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 01:42:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 01:42:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 01:42:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 01:42:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 01:42:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 01:42:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 01:42:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 01:42:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 01:42:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 01:42:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 01:42:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-16 01:42:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:12,479 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-12-16 01:42:12,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:42:12,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968001290] [2021-12-16 01:42:12,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968001290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:42:12,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:42:12,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:42:12,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575989090] [2021-12-16 01:42:12,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:42:12,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:42:12,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:42:12,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:42:12,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:42:12,529 INFO L87 Difference]: Start difference. First operand has 148 states, 94 states have (on average 1.3404255319148937) internal successors, (126), 95 states have internal predecessors, (126), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2021-12-16 01:42:12,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:42:12,623 INFO L93 Difference]: Finished difference Result 298 states and 477 transitions. [2021-12-16 01:42:12,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:42:12,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 144 [2021-12-16 01:42:12,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:42:12,635 INFO L225 Difference]: With dead ends: 298 [2021-12-16 01:42:12,635 INFO L226 Difference]: Without dead ends: 148 [2021-12-16 01:42:12,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:42:12,643 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 4 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:42:12,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 416 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:42:12,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-12-16 01:42:12,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 145. [2021-12-16 01:42:12,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 92 states have internal predecessors, (119), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-12-16 01:42:12,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 209 transitions. [2021-12-16 01:42:12,688 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 209 transitions. Word has length 144 [2021-12-16 01:42:12,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:42:12,689 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 209 transitions. [2021-12-16 01:42:12,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2021-12-16 01:42:12,689 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 209 transitions. [2021-12-16 01:42:12,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-16 01:42:12,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:42:12,694 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:42:12,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:42:12,694 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:42:12,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:42:12,695 INFO L85 PathProgramCache]: Analyzing trace with hash -2025126427, now seen corresponding path program 1 times [2021-12-16 01:42:12,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:42:12,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727275526] [2021-12-16 01:42:12,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:42:12,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:42:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-16 01:42:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 01:42:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 01:42:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 01:42:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-16 01:42:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 01:42:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 01:42:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-16 01:42:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 01:42:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 01:42:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 01:42:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 01:42:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 01:42:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 01:42:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 01:42:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 01:42:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 01:42:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 01:42:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 01:42:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 01:42:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-16 01:42:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-16 01:42:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:20,539 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-12-16 01:42:20,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:42:20,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727275526] [2021-12-16 01:42:20,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727275526] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:42:20,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:42:20,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:42:20,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576414748] [2021-12-16 01:42:20,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:42:20,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:42:20,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:42:20,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:42:20,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:42:20,546 INFO L87 Difference]: Start difference. First operand 145 states and 209 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2021-12-16 01:42:20,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:42:20,587 INFO L93 Difference]: Finished difference Result 289 states and 418 transitions. [2021-12-16 01:42:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:42:20,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 147 [2021-12-16 01:42:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:42:20,591 INFO L225 Difference]: With dead ends: 289 [2021-12-16 01:42:20,591 INFO L226 Difference]: Without dead ends: 147 [2021-12-16 01:42:20,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:42:20,593 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 1 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:42:20,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 409 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:42:20,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-12-16 01:42:20,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2021-12-16 01:42:20,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 93 states have (on average 1.2903225806451613) internal successors, (120), 93 states have internal predecessors, (120), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-12-16 01:42:20,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 210 transitions. [2021-12-16 01:42:20,619 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 210 transitions. Word has length 147 [2021-12-16 01:42:20,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:42:20,620 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 210 transitions. [2021-12-16 01:42:20,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2021-12-16 01:42:20,621 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 210 transitions. [2021-12-16 01:42:20,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-16 01:42:20,626 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:42:20,626 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:42:20,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 01:42:20,627 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:42:20,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:42:20,628 INFO L85 PathProgramCache]: Analyzing trace with hash -611281689, now seen corresponding path program 1 times [2021-12-16 01:42:20,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:42:20,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032676609] [2021-12-16 01:42:20,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:42:20,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:42:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 01:42:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 01:42:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 01:42:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 01:42:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 01:42:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 01:42:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 01:42:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 01:42:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 01:42:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 01:42:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 01:42:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 01:42:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 01:42:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 01:42:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 01:42:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 01:42:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 01:42:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 01:42:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-16 01:42:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-16 01:42:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-16 01:42:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 01:42:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-12-16 01:42:28,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:42:28,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032676609] [2021-12-16 01:42:28,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032676609] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:42:28,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808692864] [2021-12-16 01:42:28,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:42:28,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:42:28,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:42:28,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 01:42:28,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process