./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 35987657 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-?-3598765 [2022-07-21 06:21:16,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 06:21:16,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 06:21:16,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 06:21:16,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 06:21:16,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 06:21:16,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 06:21:16,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 06:21:16,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 06:21:16,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 06:21:16,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 06:21:16,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 06:21:16,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 06:21:16,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 06:21:16,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 06:21:16,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 06:21:16,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 06:21:16,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 06:21:16,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 06:21:16,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 06:21:16,625 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 06:21:16,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 06:21:16,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 06:21:16,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 06:21:16,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 06:21:16,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 06:21:16,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 06:21:16,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 06:21:16,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 06:21:16,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 06:21:16,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 06:21:16,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 06:21:16,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 06:21:16,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 06:21:16,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 06:21:16,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 06:21:16,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 06:21:16,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 06:21:16,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 06:21:16,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 06:21:16,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 06:21:16,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 06:21:16,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 06:21:16,686 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 06:21:16,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 06:21:16,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 06:21:16,687 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 06:21:16,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 06:21:16,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 06:21:16,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 06:21:16,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 06:21:16,688 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 06:21:16,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 06:21:16,690 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 06:21:16,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 06:21:16,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 06:21:16,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 06:21:16,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 06:21:16,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 06:21:16,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 06:21:16,697 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 06:21:16,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 06:21:16,697 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 06:21:16,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 06:21:16,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 06:21:16,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 06:21:16,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 06:21:16,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 06:21:16,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 06:21:16,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 06:21:16,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 06:21:16,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 06:21:16,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 06:21:16,699 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 06:21:16,700 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 06:21:16,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 06:21:16,700 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5cca3532c956cbfb3f8d24df68dd431ff61516e63bcc0106c0529c479d6a4ef [2022-07-21 06:21:16,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 06:21:16,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 06:21:16,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 06:21:16,999 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 06:21:17,000 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 06:21:17,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i [2022-07-21 06:21:17,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ceaef8b/33346c44e51f440d8421996c1a878a25/FLAGc4aa2fccf [2022-07-21 06:21:17,431 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 06:21:17,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_time_var_mutex.i [2022-07-21 06:21:17,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ceaef8b/33346c44e51f440d8421996c1a878a25/FLAGc4aa2fccf [2022-07-21 06:21:17,469 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ceaef8b/33346c44e51f440d8421996c1a878a25 [2022-07-21 06:21:17,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 06:21:17,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 06:21:17,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 06:21:17,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 06:21:17,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 06:21:17,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:21:17" (1/1) ... [2022-07-21 06:21:17,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21701b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17, skipping insertion in model container [2022-07-21 06:21:17,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:21:17" (1/1) ... [2022-07-21 06:21:17,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 06:21:17,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 06:21:17,779 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] [2022-07-21 06:21:17,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 06:21:17,893 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 06:21:17,911 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] [2022-07-21 06:21:17,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 06:21:17,981 INFO L208 MainTranslator]: Completed translation [2022-07-21 06:21:17,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17 WrapperNode [2022-07-21 06:21:17,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 06:21:17,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 06:21:17,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 06:21:17,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 06:21:17,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17" (1/1) ... [2022-07-21 06:21:18,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17" (1/1) ... [2022-07-21 06:21:18,047 INFO L137 Inliner]: procedures = 145, calls = 317, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 519 [2022-07-21 06:21:18,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 06:21:18,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 06:21:18,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 06:21:18,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 06:21:18,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17" (1/1) ... [2022-07-21 06:21:18,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17" (1/1) ... [2022-07-21 06:21:18,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17" (1/1) ... [2022-07-21 06:21:18,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17" (1/1) ... [2022-07-21 06:21:18,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17" (1/1) ... [2022-07-21 06:21:18,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17" (1/1) ... [2022-07-21 06:21:18,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17" (1/1) ... [2022-07-21 06:21:18,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 06:21:18,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 06:21:18,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 06:21:18,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 06:21:18,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17" (1/1) ... [2022-07-21 06:21:18,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 06:21:18,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 06:21:18,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 06:21:18,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 06:21:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 06:21:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 06:21:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 06:21:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 06:21:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 06:21:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 06:21:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 06:21:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2022-07-21 06:21:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2022-07-21 06:21:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-07-21 06:21:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-07-21 06:21:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 06:21:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-07-21 06:21:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-07-21 06:21:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-07-21 06:21:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-07-21 06:21:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 06:21:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 06:21:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-07-21 06:21:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-07-21 06:21:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 06:21:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_destroy [2022-07-21 06:21:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_destroy [2022-07-21 06:21:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 06:21:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 06:21:18,477 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 06:21:18,478 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 06:21:21,233 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 06:21:21,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 06:21:21,239 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 06:21:21,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:21:21 BoogieIcfgContainer [2022-07-21 06:21:21,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 06:21:21,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 06:21:21,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 06:21:21,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 06:21:21,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 06:21:17" (1/3) ... [2022-07-21 06:21:21,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c638e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:21:21, skipping insertion in model container [2022-07-21 06:21:21,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:21:17" (2/3) ... [2022-07-21 06:21:21,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c638e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:21:21, skipping insertion in model container [2022-07-21 06:21:21,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:21:21" (3/3) ... [2022-07-21 06:21:21,246 INFO L111 eAbstractionObserver]: Analyzing ICFG cs_time_var_mutex.i [2022-07-21 06:21:21,256 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 06:21:21,256 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 06:21:21,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 06:21:21,314 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4c5991f5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1494def0 [2022-07-21 06:21:21,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 06:21:21,324 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) [2022-07-21 06:21:21,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-21 06:21:21,349 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:21:21,349 INFO L195 NwaCegarLoop]: 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] [2022-07-21 06:21:21,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 06:21:21,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:21:21,354 INFO L85 PathProgramCache]: Analyzing trace with hash -5089063, now seen corresponding path program 1 times [2022-07-21 06:21:21,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:21:21,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933063274] [2022-07-21 06:21:21,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:21:21,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:21:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 06:22:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 06:22:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 06:22:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 06:22:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 06:22:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 06:22:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 06:22:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 06:22:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 06:22:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 06:22:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 06:22:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 06:22:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 06:22:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 06:22:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 06:22:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 06:22:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 06:22:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 06:22:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 06:22:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 06:22:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 06:22:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 06:22:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:00,624 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-07-21 06:22:00,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:22:00,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933063274] [2022-07-21 06:22:00,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933063274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:22:00,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:22:00,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 06:22:00,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846552566] [2022-07-21 06:22:00,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:22:00,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 06:22:00,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:22:00,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 06:22:00,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:22:00,651 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) [2022-07-21 06:22:00,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:22:00,751 INFO L93 Difference]: Finished difference Result 298 states and 477 transitions. [2022-07-21 06:22:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 06:22:00,754 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 [2022-07-21 06:22:00,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:22:00,764 INFO L225 Difference]: With dead ends: 298 [2022-07-21 06:22:00,765 INFO L226 Difference]: Without dead ends: 148 [2022-07-21 06:22:00,772 INFO L412 NwaCegarLoop]: 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 [2022-07-21 06:22:00,775 INFO L413 NwaCegarLoop]: 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 [2022-07-21 06:22:00,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 416 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:22:00,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-07-21 06:22:00,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 145. [2022-07-21 06:22:00,826 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) [2022-07-21 06:22:00,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 209 transitions. [2022-07-21 06:22:00,830 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 209 transitions. Word has length 144 [2022-07-21 06:22:00,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:22:00,830 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 209 transitions. [2022-07-21 06:22:00,831 INFO L496 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) [2022-07-21 06:22:00,831 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 209 transitions. [2022-07-21 06:22:00,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 06:22:00,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:22:00,838 INFO L195 NwaCegarLoop]: 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] [2022-07-21 06:22:00,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 06:22:00,838 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 06:22:00,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:22:00,839 INFO L85 PathProgramCache]: Analyzing trace with hash -2025126427, now seen corresponding path program 1 times [2022-07-21 06:22:00,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:22:00,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786439229] [2022-07-21 06:22:00,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:22:00,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:22:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 06:22:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 06:22:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 06:22:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 06:22:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 06:22:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 06:22:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 06:22:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 06:22:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 06:22:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 06:22:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 06:22:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 06:22:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 06:22:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 06:22:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 06:22:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 06:22:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 06:22:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 06:22:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 06:22:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 06:22:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 06:22:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 06:22:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:09,380 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-07-21 06:22:09,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:22:09,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786439229] [2022-07-21 06:22:09,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786439229] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:22:09,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:22:09,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 06:22:09,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513936054] [2022-07-21 06:22:09,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:22:09,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 06:22:09,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:22:09,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 06:22:09,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:22:09,385 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) [2022-07-21 06:22:09,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:22:09,432 INFO L93 Difference]: Finished difference Result 289 states and 418 transitions. [2022-07-21 06:22:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 06:22:09,433 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 [2022-07-21 06:22:09,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:22:09,436 INFO L225 Difference]: With dead ends: 289 [2022-07-21 06:22:09,436 INFO L226 Difference]: Without dead ends: 147 [2022-07-21 06:22:09,437 INFO L412 NwaCegarLoop]: 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 [2022-07-21 06:22:09,439 INFO L413 NwaCegarLoop]: 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 [2022-07-21 06:22:09,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 409 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:22:09,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-07-21 06:22:09,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2022-07-21 06:22:09,451 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) [2022-07-21 06:22:09,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 210 transitions. [2022-07-21 06:22:09,454 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 210 transitions. Word has length 147 [2022-07-21 06:22:09,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:22:09,456 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 210 transitions. [2022-07-21 06:22:09,456 INFO L496 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) [2022-07-21 06:22:09,456 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 210 transitions. [2022-07-21 06:22:09,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-21 06:22:09,458 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:22:09,459 INFO L195 NwaCegarLoop]: 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] [2022-07-21 06:22:09,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 06:22:09,459 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 06:22:09,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:22:09,459 INFO L85 PathProgramCache]: Analyzing trace with hash -611281689, now seen corresponding path program 1 times [2022-07-21 06:22:09,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:22:09,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860891783] [2022-07-21 06:22:09,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:22:09,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:22:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 06:22:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 06:22:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 06:22:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 06:22:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 06:22:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 06:22:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 06:22:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 06:22:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 06:22:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 06:22:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 06:22:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 06:22:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 06:22:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 06:22:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 06:22:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 06:22:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 06:22:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 06:22:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 06:22:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 06:22:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 06:22:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 06:22:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:17,289 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-07-21 06:22:17,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:22:17,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860891783] [2022-07-21 06:22:17,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860891783] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 06:22:17,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858420578] [2022-07-21 06:22:17,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:22:17,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 06:22:17,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 06:22:17,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 06:22:17,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 06:22:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:22:52,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 101552 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 06:22:52,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 06:22:52,914 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-07-21 06:22:52,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 06:22:53,017 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-07-21 06:22:53,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858420578] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 06:22:53,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 06:22:53,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-07-21 06:22:53,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337777356] [2022-07-21 06:22:53,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 06:22:53,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 06:22:53,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:22:53,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 06:22:53,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-21 06:22:53,023 INFO L87 Difference]: Start difference. First operand 146 states and 210 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2022-07-21 06:22:53,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:22:53,073 INFO L93 Difference]: Finished difference Result 293 states and 423 transitions. [2022-07-21 06:22:53,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:22:53,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 149 [2022-07-21 06:22:53,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:22:53,075 INFO L225 Difference]: With dead ends: 293 [2022-07-21 06:22:53,075 INFO L226 Difference]: Without dead ends: 150 [2022-07-21 06:22:53,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 339 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-21 06:22:53,078 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 3 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:22:53,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 612 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:22:53,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-07-21 06:22:53,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-07-21 06:22:53,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 97 states have (on average 1.2783505154639174) internal successors, (124), 97 states have internal predecessors, (124), 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) [2022-07-21 06:22:53,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 214 transitions. [2022-07-21 06:22:53,100 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 214 transitions. Word has length 149 [2022-07-21 06:22:53,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:22:53,100 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 214 transitions. [2022-07-21 06:22:53,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2022-07-21 06:22:53,100 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 214 transitions. [2022-07-21 06:22:53,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-21 06:22:53,103 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:22:53,103 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:22:53,304 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forcibly destroying the process [2022-07-21 06:22:53,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 137 [2022-07-21 06:22:53,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 06:22:53,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 06:22:53,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:22:53,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1112495765, now seen corresponding path program 2 times [2022-07-21 06:22:53,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:22:53,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478348167] [2022-07-21 06:22:53,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:22:53,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:23:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 06:23:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 06:23:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 06:23:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 06:23:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 06:23:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 06:23:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 06:23:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 06:23:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 06:23:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 06:23:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 06:23:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 06:23:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 06:23:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 06:23:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 06:23:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 06:23:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 06:23:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 06:23:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 06:23:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 06:23:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 06:23:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-21 06:23:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:23:54,521 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 933 trivial. 0 not checked. [2022-07-21 06:23:54,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:23:54,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478348167] [2022-07-21 06:23:54,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478348167] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 06:23:54,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696379813] [2022-07-21 06:23:54,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 06:23:54,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 06:23:54,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 06:23:54,537 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) [2022-07-21 06:23:54,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process