./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-08_07-59-58.files/protection-local/28-race_reach_79-equ_racefree.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i ./goblint.2024-08-08_07-59-58.files/protection-local/28-race_reach_79-equ_racefree.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-c091e2e-m [2024-08-14 10:34:40,222 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 10:34:40,296 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-14 10:34:40,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 10:34:40,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 10:34:40,332 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 10:34:40,333 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 10:34:40,334 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 10:34:40,335 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 10:34:40,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 10:34:40,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 10:34:40,337 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 10:34:40,337 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 10:34:40,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 10:34:40,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 10:34:40,340 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 10:34:40,340 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 10:34:40,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 10:34:40,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 10:34:40,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 10:34:40,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 10:34:40,345 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 10:34:40,345 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 10:34:40,346 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 10:34:40,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 10:34:40,346 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 10:34:40,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 10:34:40,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 10:34:40,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 10:34:40,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 10:34:40,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-14 10:34:40,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 10:34:40,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 10:34:40,349 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 10:34:40,349 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 10:34:40,350 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-14 10:34:40,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 10:34:40,351 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 10:34:40,351 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-14 10:34:40,352 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 10:34:40,352 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-14 10:34:40,353 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-14 10:34:40,353 INFO L153 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-14 10:34:40,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 10:34:40,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 10:34:40,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 10:34:40,711 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 10:34:40,712 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 10:34:40,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i [2024-08-14 10:34:42,182 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 10:34:42,519 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 10:34:42,520 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i [2024-08-14 10:34:42,544 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ca9f4cea2/c41aaad3ee4541418f6f8349beeafa11/FLAG7bb91b85e [2024-08-14 10:34:42,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ca9f4cea2/c41aaad3ee4541418f6f8349beeafa11 [2024-08-14 10:34:42,564 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 10:34:42,565 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 10:34:42,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/protection-local/28-race_reach_79-equ_racefree.yml/witness.yml [2024-08-14 10:34:42,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 10:34:42,705 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-14 10:34:42,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 10:34:42,706 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 10:34:42,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 10:34:42,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 10:34:42" (1/2) ... [2024-08-14 10:34:42,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692fc9bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:34:42, skipping insertion in model container [2024-08-14 10:34:42,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 10:34:42" (1/2) ... [2024-08-14 10:34:42,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@70199724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:34:42, skipping insertion in model container [2024-08-14 10:34:42,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 10:34:42" (2/2) ... [2024-08-14 10:34:42,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692fc9bf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:42, skipping insertion in model container [2024-08-14 10:34:42,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 10:34:42" (2/2) ... [2024-08-14 10:34:42,717 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-14 10:34:42,799 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-14 10:34:42,800 INFO L97 edCorrectnessWitness]: Location invariant before [L1038-L1038] (((A.inside.x == 0) && (A.inside.y == 0)) && (B.inside.x == 0)) && (B.inside.y == 0) [2024-08-14 10:34:42,800 INFO L97 edCorrectnessWitness]: Location invariant before [L1013-L1013] (((A.inside.x == 0) && (A.inside.y == 0)) && (B.inside.x == 0)) && (B.inside.y == 0) [2024-08-14 10:34:42,800 INFO L97 edCorrectnessWitness]: Location invariant before [L1038-L1038] (((A.inside.x == 0) && (A.inside.y == 0)) && (B.inside.x == 0)) && (B.inside.y == 0) [2024-08-14 10:34:42,800 INFO L97 edCorrectnessWitness]: Location invariant before [L1013-L1013] (((A.inside.x == 0) && (A.inside.y == 0)) && (B.inside.x == 0)) && (B.inside.y == 0) [2024-08-14 10:34:42,801 INFO L97 edCorrectnessWitness]: Location invariant before [L1013-L1013] (((A.inside.x == 0) && (A.inside.y == 0)) && (B.inside.x == 0)) && (B.inside.y == 0) [2024-08-14 10:34:42,801 INFO L97 edCorrectnessWitness]: Location invariant before [L1038-L1038] (((A.inside.x == 0) && (A.inside.y == 0)) && (B.inside.x == 0)) && (B.inside.y == 0) [2024-08-14 10:34:42,860 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-14 10:34:43,254 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i[47038,47051] [2024-08-14 10:34:43,295 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 10:34:43,316 INFO L202 MainTranslator]: Completed pre-run [2024-08-14 10:34:43,368 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i[47038,47051] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-14 10:34:43,525 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 10:34:43,598 INFO L206 MainTranslator]: Completed translation [2024-08-14 10:34:43,600 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43 WrapperNode [2024-08-14 10:34:43,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 10:34:43,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-14 10:34:43,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-14 10:34:43,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-14 10:34:43,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43" (1/1) ... [2024-08-14 10:34:43,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43" (1/1) ... [2024-08-14 10:34:43,855 INFO L138 Inliner]: procedures = 272, calls = 856, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 3238 [2024-08-14 10:34:43,856 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-14 10:34:43,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 10:34:43,857 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 10:34:43,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 10:34:43,867 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43" (1/1) ... [2024-08-14 10:34:43,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43" (1/1) ... [2024-08-14 10:34:43,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43" (1/1) ... [2024-08-14 10:34:43,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43" (1/1) ... [2024-08-14 10:34:44,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43" (1/1) ... [2024-08-14 10:34:44,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43" (1/1) ... [2024-08-14 10:34:44,049 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43" (1/1) ... [2024-08-14 10:34:44,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43" (1/1) ... [2024-08-14 10:34:44,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 10:34:44,085 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-14 10:34:44,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-14 10:34:44,085 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-14 10:34:44,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43" (1/1) ... [2024-08-14 10:34:44,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-14 10:34:44,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:34:44,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-14 10:34:44,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-14 10:34:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-14 10:34:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 10:34:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-08-14 10:34:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-14 10:34:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-14 10:34:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-08-14 10:34:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 10:34:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-08-14 10:34:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-08-14 10:34:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-14 10:34:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 10:34:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 10:34:44,162 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-08-14 10:34:44,441 INFO L244 CfgBuilder]: Building ICFG [2024-08-14 10:34:44,443 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 10:34:46,591 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-08-14 10:34:46,591 INFO L293 CfgBuilder]: Performing block encoding [2024-08-14 10:34:55,370 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 10:34:55,370 INFO L320 CfgBuilder]: Removed 22 assume(true) statements. [2024-08-14 10:34:55,370 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 10:34:55 BoogieIcfgContainer [2024-08-14 10:34:55,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-14 10:34:55,374 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 10:34:55,375 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 10:34:55,378 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 10:34:55,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 10:34:42" (1/4) ... [2024-08-14 10:34:55,379 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2069f922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 10:34:55, skipping insertion in model container [2024-08-14 10:34:55,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 10:34:42" (2/4) ... [2024-08-14 10:34:55,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2069f922 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.08 10:34:55, skipping insertion in model container [2024-08-14 10:34:55,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:34:43" (3/4) ... [2024-08-14 10:34:55,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2069f922 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.08 10:34:55, skipping insertion in model container [2024-08-14 10:34:55,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 10:34:55" (4/4) ... [2024-08-14 10:34:55,382 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2024-08-14 10:34:55,401 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 10:34:55,401 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-08-14 10:34:55,402 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-14 10:34:55,552 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-08-14 10:34:55,597 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:34:55,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:34:55,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:34:55,600 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:34:55,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-14 10:34:55,637 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:34:55,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-08-14 10:34:55,658 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=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ccc1462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:34:55,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-14 10:34:56,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:34:56,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:34:56,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1879630399, now seen corresponding path program 1 times [2024-08-14 10:34:56,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:34:56,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507440946] [2024-08-14 10:34:56,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:34:56,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:34:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:34:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-14 10:34:56,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:34:56,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507440946] [2024-08-14 10:34:56,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507440946] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:34:56,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:34:56,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 10:34:56,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766612405] [2024-08-14 10:34:56,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:34:56,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-14 10:34:56,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:34:56,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-14 10:34:56,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-14 10:34:56,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:34:56,673 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:34:56,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:34:56,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:34:56,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:34:56,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 10:34:56,739 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:34:56,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:34:56,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1641505376, now seen corresponding path program 1 times [2024-08-14 10:34:56,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:34:56,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269232714] [2024-08-14 10:34:56,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:34:56,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:34:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:34:57,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:34:57,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:34:57,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269232714] [2024-08-14 10:34:57,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269232714] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:34:57,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144697064] [2024-08-14 10:34:57,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:34:57,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:34:57,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:34:57,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:34:57,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-14 10:34:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:34:58,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 31 conjunts are in the unsatisfiable core [2024-08-14 10:34:58,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:34:58,350 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-08-14 10:34:58,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-08-14 10:34:58,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2024-08-14 10:34:58,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2024-08-14 10:34:58,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:34:58,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:34:58,790 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_332 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_332) |c_~#A~0.base|) (+ |c_~#A~0.offset| 8)) 0)) (forall ((v_ArrVal_332 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_332) |c_~#A~0.base|) (+ |c_~#A~0.offset| 4)) 0)) (forall ((v_ArrVal_332 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_332) |c_~#B~0.base|) (+ |c_~#B~0.offset| 4)) 0)) (forall ((v_ArrVal_332 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_332) |c_~#B~0.base|) (+ 8 |c_~#B~0.offset|)) 0))) is different from false [2024-08-14 10:34:59,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2024-08-14 10:34:59,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144697064] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:34:59,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:34:59,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-08-14 10:34:59,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338464785] [2024-08-14 10:34:59,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:34:59,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-14 10:34:59,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:34:59,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-14 10:34:59,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=36, Unknown=1, NotChecked=12, Total=72 [2024-08-14 10:34:59,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:34:59,021 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:34:59,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:34:59,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:34:59,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:34:59,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:34:59,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:34:59,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-14 10:34:59,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-08-14 10:34:59,325 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:34:59,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:34:59,327 INFO L85 PathProgramCache]: Analyzing trace with hash 417625166, now seen corresponding path program 1 times [2024-08-14 10:34:59,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:34:59,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762467013] [2024-08-14 10:34:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:34:59,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:34:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:34:59,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:34:59,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:34:59,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762467013] [2024-08-14 10:34:59,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762467013] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:34:59,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96182818] [2024-08-14 10:34:59,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:34:59,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:34:59,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:34:59,609 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:34:59,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-14 10:34:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:34:59,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-14 10:34:59,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:34:59,915 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-14 10:34:59,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-08-14 10:34:59,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:34:59,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:35:00,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:35:00,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:35:00,064 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_362 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_362) |c_~#A~0.base|) |c_~#A~0.offset|) 0)) is different from false [2024-08-14 10:35:00,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2024-08-14 10:35:00,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96182818] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:35:00,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:35:00,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-08-14 10:35:00,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572985464] [2024-08-14 10:35:00,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:35:00,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-14 10:35:00,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:00,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-14 10:35:00,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=65, Unknown=1, NotChecked=16, Total=110 [2024-08-14 10:35:00,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:00,129 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:00,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:00,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:00,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:00,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:01,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:01,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:01,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:01,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-14 10:35:01,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:01,422 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:01,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:01,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1794719847, now seen corresponding path program 1 times [2024-08-14 10:35:01,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:01,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164672846] [2024-08-14 10:35:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:01,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:01,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:35:01,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:01,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164672846] [2024-08-14 10:35:01,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164672846] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:01,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183472908] [2024-08-14 10:35:01,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:01,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:01,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:01,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:01,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-14 10:35:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:01,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 3 conjunts are in the unsatisfiable core [2024-08-14 10:35:01,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:35:01,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:35:01,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:35:01,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183472908] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:35:01,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:35:01,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-08-14 10:35:01,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42472689] [2024-08-14 10:35:01,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:35:01,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-14 10:35:01,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:01,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-14 10:35:01,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-08-14 10:35:01,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:01,844 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:01,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:01,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:01,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:01,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:01,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:02,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:02,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:02,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:02,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:02,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-08-14 10:35:02,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-08-14 10:35:02,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining) [2024-08-14 10:35:02,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-08-14 10:35:02,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-14 10:35:03,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:03,027 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-08-14 10:35:03,028 INFO L308 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE (1/2) [2024-08-14 10:35:03,032 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:35:03,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:35:03,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:03,034 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:35:03,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-08-14 10:35:03,040 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:35:03,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-14 10:35:03,041 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=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ccc1462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:35:03,041 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-08-14 10:35:03,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-08-14 10:35:03,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:03,231 INFO L85 PathProgramCache]: Analyzing trace with hash -342250155, now seen corresponding path program 1 times [2024-08-14 10:35:03,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:03,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200784272] [2024-08-14 10:35:03,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:03,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:35:03,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:03,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200784272] [2024-08-14 10:35:03,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200784272] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:03,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:03,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 10:35:03,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144212776] [2024-08-14 10:35:03,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:03,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-14 10:35:03,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:03,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-14 10:35:03,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-14 10:35:03,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:03,281 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:03,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:03,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:03,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-14 10:35:03,435 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-08-14 10:35:03,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:03,435 INFO L85 PathProgramCache]: Analyzing trace with hash -565201568, now seen corresponding path program 1 times [2024-08-14 10:35:03,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:03,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804321210] [2024-08-14 10:35:03,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:03,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 10:35:03,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 10:35:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 10:35:03,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 10:35:03,521 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 10:35:03,521 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-08-14 10:35:03,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-08-14 10:35:03,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 5 remaining) [2024-08-14 10:35:03,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 5 remaining) [2024-08-14 10:35:03,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-08-14 10:35:03,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-08-14 10:35:03,527 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-14 10:35:03,528 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (2/2) [2024-08-14 10:35:03,528 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-14 10:35:03,529 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-08-14 10:35:03,747 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-14 10:35:03,750 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:35:03,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:35:03,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:03,753 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:35:03,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2024-08-14 10:35:03,757 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:35:03,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of2ForFork0 ======== [2024-08-14 10:35:03,758 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=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ccc1462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:35:03,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-14 10:35:05,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:05,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:05,262 INFO L85 PathProgramCache]: Analyzing trace with hash 69426966, now seen corresponding path program 1 times [2024-08-14 10:35:05,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:05,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649149031] [2024-08-14 10:35:05,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:05,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:05,539 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:35:05,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:05,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649149031] [2024-08-14 10:35:05,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649149031] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:05,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:05,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:35:05,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586503189] [2024-08-14 10:35:05,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:05,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:35:05,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:05,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:35:05,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:35:05,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:05,542 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:05,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:05,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:05,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:05,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-08-14 10:35:05,735 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:05,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:05,735 INFO L85 PathProgramCache]: Analyzing trace with hash -946823562, now seen corresponding path program 1 times [2024-08-14 10:35:05,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:05,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573229184] [2024-08-14 10:35:05,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:05,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:06,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:35:06,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:06,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573229184] [2024-08-14 10:35:06,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573229184] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:06,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116603229] [2024-08-14 10:35:06,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:06,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:06,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:06,321 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:06,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-14 10:35:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:06,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 31 conjunts are in the unsatisfiable core [2024-08-14 10:35:06,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:06,877 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-08-14 10:35:06,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-08-14 10:35:06,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2024-08-14 10:35:07,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2024-08-14 10:35:07,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:35:07,224 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:35:07,301 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_762 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_762) |c_~#A~0.base|) (+ |c_~#A~0.offset| 4)) 0)) (forall ((v_ArrVal_762 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_762) |c_~#B~0.base|) (+ 8 |c_~#B~0.offset|)) 0)) (forall ((v_ArrVal_762 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_762) |c_~#A~0.base|) (+ |c_~#A~0.offset| 8)) 0)) (forall ((v_ArrVal_762 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_762) |c_~#B~0.base|) (+ |c_~#B~0.offset| 4)) 0))) is different from false [2024-08-14 10:35:07,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2024-08-14 10:35:07,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116603229] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:35:07,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:35:07,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-08-14 10:35:07,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317814838] [2024-08-14 10:35:07,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:35:07,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-14 10:35:07,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:07,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-14 10:35:07,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=36, Unknown=1, NotChecked=12, Total=72 [2024-08-14 10:35:07,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:07,444 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:07,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:07,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:07,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:07,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:07,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:07,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-08-14 10:35:07,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-08-14 10:35:07,777 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:07,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:07,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1763690532, now seen corresponding path program 1 times [2024-08-14 10:35:07,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:07,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430255282] [2024-08-14 10:35:07,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:07,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:07,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:35:07,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:07,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430255282] [2024-08-14 10:35:07,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430255282] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:07,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652921509] [2024-08-14 10:35:07,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:07,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:07,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:07,959 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:07,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-14 10:35:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:08,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-14 10:35:08,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:08,325 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-14 10:35:08,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-08-14 10:35:08,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:35:08,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:35:08,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:35:08,431 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:35:08,457 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_792 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_792) |c_~#A~0.base|) |c_~#A~0.offset|) 0)) is different from false [2024-08-14 10:35:08,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2024-08-14 10:35:08,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652921509] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:35:08,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:35:08,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-08-14 10:35:08,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796312132] [2024-08-14 10:35:08,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:35:08,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-14 10:35:08,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:08,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-14 10:35:08,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=65, Unknown=1, NotChecked=16, Total=110 [2024-08-14 10:35:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:08,501 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:08,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 10 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:08,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:08,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:08,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:13,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:13,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:13,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:13,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-08-14 10:35:13,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:13,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:13,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:13,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1910827046, now seen corresponding path program 1 times [2024-08-14 10:35:13,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:13,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457993648] [2024-08-14 10:35:13,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:13,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:13,455 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:35:13,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:13,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457993648] [2024-08-14 10:35:13,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457993648] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:13,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616092990] [2024-08-14 10:35:13,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:13,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:13,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:13,458 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:13,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-14 10:35:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:13,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 4 conjunts are in the unsatisfiable core [2024-08-14 10:35:13,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:13,850 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:35:13,850 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:35:13,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:35:13,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616092990] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:35:13,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:35:13,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-08-14 10:35:13,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795557140] [2024-08-14 10:35:13,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:35:13,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-14 10:35:13,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:13,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-14 10:35:13,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-08-14 10:35:13,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:13,887 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:13,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:13,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:13,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:13,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:13,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:16,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:16,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:16,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-08-14 10:35:16,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-08-14 10:35:16,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:16,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:16,495 INFO L85 PathProgramCache]: Analyzing trace with hash -587864770, now seen corresponding path program 1 times [2024-08-14 10:35:16,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:16,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746042391] [2024-08-14 10:35:16,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:16,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:16,619 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-14 10:35:16,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:16,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746042391] [2024-08-14 10:35:16,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746042391] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:16,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:16,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 10:35:16,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259552251] [2024-08-14 10:35:16,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:16,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 10:35:16,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:16,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 10:35:16,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-08-14 10:35:16,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:16,622 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:16,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:16,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:16,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:16,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:16,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:16,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:16,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-08-14 10:35:16,893 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:16,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:16,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1014733762, now seen corresponding path program 2 times [2024-08-14 10:35:16,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:16,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371490388] [2024-08-14 10:35:16,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:16,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-14 10:35:17,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:17,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371490388] [2024-08-14 10:35:17,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371490388] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:17,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641012605] [2024-08-14 10:35:17,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-14 10:35:17,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:17,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:17,196 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:17,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-08-14 10:35:17,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-14 10:35:17,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:35:17,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 25 conjunts are in the unsatisfiable core [2024-08-14 10:35:17,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:17,644 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-14 10:35:17,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-08-14 10:35:17,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:35:17,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:35:17,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:35:17,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-08-14 10:35:17,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-08-14 10:35:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-14 10:35:18,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:35:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-14 10:35:18,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641012605] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:35:18,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:35:18,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-08-14 10:35:18,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2729026] [2024-08-14 10:35:18,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:35:18,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-14 10:35:18,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:18,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-14 10:35:18,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=116, Unknown=5, NotChecked=0, Total=156 [2024-08-14 10:35:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:18,172 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:18,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:18,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:18,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:18,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:18,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:18,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:18,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:18,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:18,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:18,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:18,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:18,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:18,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:35:18,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-08-14 10:35:18,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-08-14 10:35:18,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining) [2024-08-14 10:35:18,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-08-14 10:35:18,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-08-14 10:35:19,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-08-14 10:35:19,009 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-08-14 10:35:19,009 INFO L308 ceAbstractionStarter]: Result for error location t_funThread1of2ForFork0 was SAFE,SAFE,SAFE,SAFE (1/3) [2024-08-14 10:35:19,012 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:35:19,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:35:19,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:19,013 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:35:19,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2024-08-14 10:35:19,017 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:35:19,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-14 10:35:19,018 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=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ccc1462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:35:19,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-08-14 10:35:19,323 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-08-14 10:35:19,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:19,323 INFO L85 PathProgramCache]: Analyzing trace with hash -319385156, now seen corresponding path program 1 times [2024-08-14 10:35:19,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:19,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858911434] [2024-08-14 10:35:19,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:19,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:19,357 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-14 10:35:19,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:19,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858911434] [2024-08-14 10:35:19,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858911434] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:19,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:19,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 10:35:19,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171535586] [2024-08-14 10:35:19,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:19,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-14 10:35:19,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:19,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-14 10:35:19,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-14 10:35:19,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:19,360 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:19,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:19,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:19,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:19,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-08-14 10:35:19,666 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-08-14 10:35:19,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:19,666 INFO L85 PathProgramCache]: Analyzing trace with hash -121087416, now seen corresponding path program 1 times [2024-08-14 10:35:19,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:19,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622252523] [2024-08-14 10:35:19,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:19,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:19,954 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:35:19,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:19,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622252523] [2024-08-14 10:35:19,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622252523] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:19,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:19,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:35:19,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967203879] [2024-08-14 10:35:19,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:19,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:35:19,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:19,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:35:19,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:35:19,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:19,958 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:19,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:19,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:19,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:20,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:20,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:20,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-08-14 10:35:20,049 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-08-14 10:35:20,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:20,050 INFO L85 PathProgramCache]: Analyzing trace with hash 635839269, now seen corresponding path program 1 times [2024-08-14 10:35:20,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:20,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186476852] [2024-08-14 10:35:20,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:20,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:20,509 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:35:20,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:20,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186476852] [2024-08-14 10:35:20,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186476852] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:20,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861233205] [2024-08-14 10:35:20,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:20,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:20,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:20,512 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:20,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-08-14 10:35:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:20,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 31 conjunts are in the unsatisfiable core [2024-08-14 10:35:20,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:21,029 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-08-14 10:35:21,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-08-14 10:35:21,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2024-08-14 10:35:21,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2024-08-14 10:35:21,250 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:35:21,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:35:21,432 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:35:21,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861233205] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:35:21,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:35:21,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-08-14 10:35:21,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561603260] [2024-08-14 10:35:21,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:35:21,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-14 10:35:21,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:21,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-14 10:35:21,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=42, Unknown=5, NotChecked=0, Total=72 [2024-08-14 10:35:21,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:21,433 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:21,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:21,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:21,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:21,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:21,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:21,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:21,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:21,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-08-14 10:35:21,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-08-14 10:35:21,731 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-08-14 10:35:21,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:21,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1605696267, now seen corresponding path program 1 times [2024-08-14 10:35:21,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:21,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359782364] [2024-08-14 10:35:21,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:21,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:21,851 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-14 10:35:21,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:21,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359782364] [2024-08-14 10:35:21,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359782364] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:21,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:21,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 10:35:21,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971887952] [2024-08-14 10:35:21,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:21,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 10:35:21,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:21,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 10:35:21,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-14 10:35:21,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:21,853 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:21,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:21,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:21,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:21,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:21,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:22,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:22,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-08-14 10:35:22,032 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-08-14 10:35:22,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:22,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1181676274, now seen corresponding path program 1 times [2024-08-14 10:35:22,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:22,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432706506] [2024-08-14 10:35:22,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:22,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 10:35:22,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 10:35:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 10:35:22,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 10:35:22,111 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 10:35:22,111 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-08-14 10:35:22,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-08-14 10:35:22,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 5 remaining) [2024-08-14 10:35:22,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 5 remaining) [2024-08-14 10:35:22,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-08-14 10:35:22,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-08-14 10:35:22,115 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-08-14 10:35:22,117 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (2/3) [2024-08-14 10:35:22,117 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-14 10:35:22,117 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-08-14 10:35:22,331 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-08-14 10:35:22,334 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:35:22,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:35:22,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:22,336 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:35:22,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2024-08-14 10:35:22,338 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:35:22,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-14 10:35:22,340 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=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ccc1462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:35:22,340 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-08-14 10:35:22,834 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-08-14 10:35:22,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:22,835 INFO L85 PathProgramCache]: Analyzing trace with hash -685572292, now seen corresponding path program 1 times [2024-08-14 10:35:22,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:22,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009719688] [2024-08-14 10:35:22,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:22,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:22,980 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-14 10:35:22,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:22,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009719688] [2024-08-14 10:35:22,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009719688] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:22,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:22,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 10:35:22,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144060980] [2024-08-14 10:35:22,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:22,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-14 10:35:22,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:22,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-14 10:35:22,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-14 10:35:22,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:22,982 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:22,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:22,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:23,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-08-14 10:35:23,492 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-08-14 10:35:23,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:23,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1929037839, now seen corresponding path program 1 times [2024-08-14 10:35:23,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:23,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762317043] [2024-08-14 10:35:23,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:23,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:23,752 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-14 10:35:23,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:23,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762317043] [2024-08-14 10:35:23,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762317043] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:23,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:23,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:35:23,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258128232] [2024-08-14 10:35:23,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:23,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:35:23,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:23,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:35:23,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:35:23,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:23,755 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:23,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:23,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:23,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:23,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:23,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:23,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-08-14 10:35:23,865 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-08-14 10:35:23,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:23,867 INFO L85 PathProgramCache]: Analyzing trace with hash 976224493, now seen corresponding path program 1 times [2024-08-14 10:35:23,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:23,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585030995] [2024-08-14 10:35:23,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:23,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:24,391 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-14 10:35:24,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:24,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585030995] [2024-08-14 10:35:24,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585030995] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:24,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936256201] [2024-08-14 10:35:24,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:24,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:24,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:24,395 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:24,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-08-14 10:35:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:24,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 35 conjunts are in the unsatisfiable core [2024-08-14 10:35:25,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:25,036 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-08-14 10:35:25,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-08-14 10:35:25,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2024-08-14 10:35:25,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2024-08-14 10:35:25,291 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-14 10:35:25,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:35:25,349 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1804 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_1804) |c_~#B~0.base|) (+ 8 |c_~#B~0.offset|)) 0)) (forall ((v_ArrVal_1804 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_1804) |c_~#A~0.base|) (+ |c_~#A~0.offset| 8)) 0)) (forall ((v_ArrVal_1804 (Array Int Int))) (= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_1804) |c_~#A~0.base|) (+ |c_~#A~0.offset| 4)))) (forall ((v_ArrVal_1804 (Array Int Int))) (= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_1804) |c_~#B~0.base|) (+ |c_~#B~0.offset| 4))))) is different from false [2024-08-14 10:35:25,453 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 2 not checked. [2024-08-14 10:35:25,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936256201] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:35:25,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:35:25,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-08-14 10:35:25,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212864012] [2024-08-14 10:35:25,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:35:25,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-14 10:35:25,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:25,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-14 10:35:25,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=36, Unknown=1, NotChecked=12, Total=72 [2024-08-14 10:35:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:25,454 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:25,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:25,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:25,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:25,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:25,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:25,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:25,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:25,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-08-14 10:35:25,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:25,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-08-14 10:35:25,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:25,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1675436741, now seen corresponding path program 1 times [2024-08-14 10:35:25,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:25,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142515323] [2024-08-14 10:35:25,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:25,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-14 10:35:25,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:25,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142515323] [2024-08-14 10:35:25,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142515323] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:25,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:25,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 10:35:25,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287931703] [2024-08-14 10:35:25,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:25,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 10:35:25,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:25,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 10:35:25,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-14 10:35:25,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:25,865 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:25,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:25,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:25,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:25,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:25,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:26,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:26,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:26,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:26,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:35:26,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-08-14 10:35:26,019 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-08-14 10:35:26,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:26,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1953868668, now seen corresponding path program 1 times [2024-08-14 10:35:26,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:26,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747152611] [2024-08-14 10:35:26,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:26,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 10:35:26,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 10:35:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 10:35:26,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 10:35:26,109 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 10:35:26,110 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-08-14 10:35:26,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-08-14 10:35:26,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 5 remaining) [2024-08-14 10:35:26,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 5 remaining) [2024-08-14 10:35:26,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-08-14 10:35:26,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-08-14 10:35:26,112 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-08-14 10:35:26,112 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/4) [2024-08-14 10:35:26,113 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-14 10:35:26,113 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-08-14 10:35:26,447 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-08-14 10:35:26,451 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:35:26,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:35:26,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:26,453 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:35:26,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2024-08-14 10:35:26,458 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:35:26,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread4of4ForFork0 ======== [2024-08-14 10:35:26,458 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=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ccc1462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:35:26,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-14 10:35:27,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:27,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:27,466 INFO L85 PathProgramCache]: Analyzing trace with hash -214282421, now seen corresponding path program 1 times [2024-08-14 10:35:27,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:27,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12933671] [2024-08-14 10:35:27,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:27,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:27,597 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-08-14 10:35:27,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:27,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12933671] [2024-08-14 10:35:27,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12933671] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:27,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:27,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 10:35:27,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818576019] [2024-08-14 10:35:27,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:27,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-14 10:35:27,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:27,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-14 10:35:27,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-14 10:35:27,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:27,599 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:27,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:27,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:28,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:28,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-08-14 10:35:28,242 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:28,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:28,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2123510567, now seen corresponding path program 1 times [2024-08-14 10:35:28,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:28,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056097166] [2024-08-14 10:35:28,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:28,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:28,825 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-14 10:35:28,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:28,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056097166] [2024-08-14 10:35:28,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056097166] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:28,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:28,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:35:28,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161401313] [2024-08-14 10:35:28,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:28,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:35:28,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:28,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:35:28,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:35:28,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:28,827 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:28,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:28,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:28,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:29,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:29,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:29,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-08-14 10:35:29,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:29,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:29,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1454635985, now seen corresponding path program 1 times [2024-08-14 10:35:29,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:29,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424102308] [2024-08-14 10:35:29,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:29,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-08-14 10:35:30,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:30,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424102308] [2024-08-14 10:35:30,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424102308] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:30,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:30,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:35:30,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937703316] [2024-08-14 10:35:30,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:30,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:35:30,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:30,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:35:30,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:35:30,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:30,161 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:30,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:30,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:30,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:30,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:30,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-08-14 10:35:30,641 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:30,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:30,641 INFO L85 PathProgramCache]: Analyzing trace with hash 162593495, now seen corresponding path program 1 times [2024-08-14 10:35:30,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:30,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104307972] [2024-08-14 10:35:30,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:30,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:31,189 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-08-14 10:35:31,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:31,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104307972] [2024-08-14 10:35:31,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104307972] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:31,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:31,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:35:31,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122276931] [2024-08-14 10:35:31,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:31,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:35:31,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:31,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:35:31,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:35:31,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:31,191 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:31,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:31,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:31,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:31,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:31,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:31,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:31,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:31,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:31,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:31,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-08-14 10:35:31,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:31,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:31,579 INFO L85 PathProgramCache]: Analyzing trace with hash 772153781, now seen corresponding path program 1 times [2024-08-14 10:35:31,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:31,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853203349] [2024-08-14 10:35:31,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:31,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:31,823 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-14 10:35:31,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:31,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853203349] [2024-08-14 10:35:31,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853203349] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:31,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:35:31,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 10:35:31,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382817268] [2024-08-14 10:35:31,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:31,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:35:31,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:31,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:35:31,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:35:31,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:31,825 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:31,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:31,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:31,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:31,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:31,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:31,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:32,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:32,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:32,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-08-14 10:35:32,008 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:32,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:32,008 INFO L85 PathProgramCache]: Analyzing trace with hash -604254815, now seen corresponding path program 1 times [2024-08-14 10:35:32,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:32,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705468611] [2024-08-14 10:35:32,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:32,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:32,251 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-08-14 10:35:32,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:32,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705468611] [2024-08-14 10:35:32,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705468611] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:32,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539018379] [2024-08-14 10:35:32,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:32,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:32,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:32,255 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:32,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-08-14 10:35:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:33,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-14 10:35:33,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:33,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-08-14 10:35:33,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-14 10:35:33,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-08-14 10:35:33,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-14 10:35:33,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-08-14 10:35:33,301 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-08-14 10:35:33,302 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 10:35:33,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539018379] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:33,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 10:35:33,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-08-14 10:35:33,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162019164] [2024-08-14 10:35:33,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:33,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 10:35:33,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:33,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 10:35:33,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-08-14 10:35:33,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:33,303 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:33,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:33,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:33,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:33,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:33,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:33,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:33,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:33,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-08-14 10:35:33,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-08-14 10:35:33,732 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:33,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:33,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1196372959, now seen corresponding path program 2 times [2024-08-14 10:35:33,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:33,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166632911] [2024-08-14 10:35:33,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:33,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-08-14 10:35:34,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:34,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166632911] [2024-08-14 10:35:34,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166632911] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:34,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672089761] [2024-08-14 10:35:34,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-14 10:35:34,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:34,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:34,047 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:34,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-08-14 10:35:34,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-08-14 10:35:34,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:35:34,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-14 10:35:34,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:34,816 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-14 10:35:34,816 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 10:35:34,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672089761] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:34,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 10:35:34,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-08-14 10:35:34,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933605605] [2024-08-14 10:35:34,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:34,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 10:35:34,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:34,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 10:35:34,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-08-14 10:35:34,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:34,818 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:34,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:34,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:34,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:34,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:34,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:34,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:34,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:34,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:35,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-08-14 10:35:35,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-08-14 10:35:35,371 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:35,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:35,372 INFO L85 PathProgramCache]: Analyzing trace with hash -470135218, now seen corresponding path program 1 times [2024-08-14 10:35:35,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:35,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172454243] [2024-08-14 10:35:35,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:35,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:35,971 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 10:35:35,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:35,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172454243] [2024-08-14 10:35:35,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172454243] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:35,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992322092] [2024-08-14 10:35:35,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:35,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:35,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:35,974 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:35,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-08-14 10:35:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:36,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 21 conjunts are in the unsatisfiable core [2024-08-14 10:35:36,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:37,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-14 10:35:37,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-14 10:35:37,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 49 [2024-08-14 10:35:37,330 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-14 10:35:37,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 10:35:37,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992322092] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:35:37,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 10:35:37,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-08-14 10:35:37,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210566845] [2024-08-14 10:35:37,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:35:37,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 10:35:37,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:37,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 10:35:37,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-08-14 10:35:37,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:37,333 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:37,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:37,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:37,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:37,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:37,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:37,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:37,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:37,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:37,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:38,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:38,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-08-14 10:35:38,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:38,409 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:38,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:38,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2069174665, now seen corresponding path program 1 times [2024-08-14 10:35:38,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:38,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205703778] [2024-08-14 10:35:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:38,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:38,933 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-08-14 10:35:38,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:38,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205703778] [2024-08-14 10:35:38,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205703778] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:38,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809403151] [2024-08-14 10:35:38,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:38,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:38,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:38,941 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:38,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-08-14 10:35:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:39,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 27 conjunts are in the unsatisfiable core [2024-08-14 10:35:39,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:39,836 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-14 10:35:39,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-08-14 10:35:39,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:35:39,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:35:40,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:35:40,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-08-14 10:35:40,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-08-14 10:35:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 10:35:40,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:35:40,239 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3968 (Array Int Int))) (= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_3968) |c_~#A~0.base|) |c_~#A~0.offset|))) is different from false [2024-08-14 10:35:40,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-08-14 10:35:40,383 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 16 not checked. [2024-08-14 10:35:40,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809403151] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:35:40,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:35:40,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 17 [2024-08-14 10:35:40,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286178716] [2024-08-14 10:35:40,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:35:40,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-14 10:35:40,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:40,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-14 10:35:40,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=219, Unknown=3, NotChecked=30, Total=306 [2024-08-14 10:35:40,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:40,386 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:40,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.61111111111111) internal successors, (209), 17 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:40,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:40,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:40,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:40,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:40,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:40,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:40,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:40,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:40,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:35:41,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-08-14 10:35:41,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:41,979 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:41,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:41,980 INFO L85 PathProgramCache]: Analyzing trace with hash 490207119, now seen corresponding path program 1 times [2024-08-14 10:35:41,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:41,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889898763] [2024-08-14 10:35:41,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:41,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:42,184 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:35:42,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:42,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889898763] [2024-08-14 10:35:42,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889898763] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:42,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990427419] [2024-08-14 10:35:42,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:42,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:42,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:42,187 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:42,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-08-14 10:35:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:43,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-14 10:35:43,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:43,217 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:35:43,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:35:43,297 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:35:43,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990427419] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:35:43,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:35:43,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-08-14 10:35:43,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863250719] [2024-08-14 10:35:43,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:35:43,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-14 10:35:43,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:43,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-14 10:35:43,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-08-14 10:35:43,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:43,299 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:43,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.153846153846153) internal successors, (145), 13 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:43,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:43,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:43,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:43,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:43,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:43,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:43,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:43,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:43,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:35:43,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:43,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:43,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:43,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:35:43,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:35:43,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-08-14 10:35:43,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-08-14 10:35:43,990 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:35:43,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:35:43,990 INFO L85 PathProgramCache]: Analyzing trace with hash -848921925, now seen corresponding path program 2 times [2024-08-14 10:35:43,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:35:43,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664459422] [2024-08-14 10:35:43,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:35:43,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:35:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:35:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-14 10:35:44,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:35:44,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664459422] [2024-08-14 10:35:44,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664459422] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:35:44,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264019342] [2024-08-14 10:35:44,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-14 10:35:44,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:44,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:44,582 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:35:44,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-08-14 10:35:45,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-14 10:35:45,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:35:45,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 28 conjunts are in the unsatisfiable core [2024-08-14 10:35:45,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:35:45,669 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-08-14 10:35:45,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-08-14 10:35:46,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2024-08-14 10:35:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-08-14 10:35:46,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:35:46,627 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-08-14 10:35:46,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 146 treesize of output 98 [2024-08-14 10:35:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 4 times theorem prover too weak. 18 trivial. 0 not checked. [2024-08-14 10:35:46,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264019342] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:35:46,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:35:46,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-08-14 10:35:46,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932779425] [2024-08-14 10:35:46,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:35:46,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-08-14 10:35:46,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:35:46,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-08-14 10:35:46,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=89, Unknown=7, NotChecked=0, Total=132 [2024-08-14 10:35:46,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:46,754 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:35:46,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.272727272727273) internal successors, (179), 11 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:35:46,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:46,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:46,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:46,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:46,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:46,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:46,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:46,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:46,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:35:46,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:35:46,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:35:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:35:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:35:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:35:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:35:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:35:54,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-08-14 10:35:54,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-08-14 10:35:54,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining) [2024-08-14 10:35:54,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-08-14 10:35:54,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-08-14 10:35:54,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:35:54,871 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 10:35:54,871 INFO L308 ceAbstractionStarter]: Result for error location t_funThread4of4ForFork0 was SAFE,SAFE,SAFE,SAFE (1/5) [2024-08-14 10:35:54,873 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:35:54,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:35:54,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:35:54,875 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:35:54,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (23)] Waiting until timeout for monitored process [2024-08-14 10:35:54,877 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:35:54,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread2of4ForFork0 ======== [2024-08-14 10:35:54,878 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=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ccc1462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:35:54,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-14 10:36:00,047 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:00,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:00,048 INFO L85 PathProgramCache]: Analyzing trace with hash 645318010, now seen corresponding path program 1 times [2024-08-14 10:36:00,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:00,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936756251] [2024-08-14 10:36:00,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:00,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:00,262 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-08-14 10:36:00,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:00,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936756251] [2024-08-14 10:36:00,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936756251] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:36:00,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:36:00,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 10:36:00,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372171878] [2024-08-14 10:36:00,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:36:00,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-14 10:36:00,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:00,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-14 10:36:00,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-14 10:36:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:00,265 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:00,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:00,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:00,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:00,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-08-14 10:36:00,702 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:00,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:00,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1467792430, now seen corresponding path program 1 times [2024-08-14 10:36:00,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:00,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036595105] [2024-08-14 10:36:00,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:00,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:00,995 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 10:36:00,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:00,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036595105] [2024-08-14 10:36:00,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036595105] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:36:00,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:36:00,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:36:00,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482173881] [2024-08-14 10:36:00,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:36:00,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:36:00,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:00,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:36:00,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:36:00,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:00,998 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:00,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:00,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:00,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:01,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:01,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-08-14 10:36:01,671 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:01,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:01,671 INFO L85 PathProgramCache]: Analyzing trace with hash 760511773, now seen corresponding path program 1 times [2024-08-14 10:36:01,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:01,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258515647] [2024-08-14 10:36:01,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:01,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:02,012 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-08-14 10:36:02,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:02,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258515647] [2024-08-14 10:36:02,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258515647] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:36:02,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:36:02,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:36:02,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80324682] [2024-08-14 10:36:02,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:36:02,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:36:02,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:02,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:36:02,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:36:02,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:02,014 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:02,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:02,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:02,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:02,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:02,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:02,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:02,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:02,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-08-14 10:36:02,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:02,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:02,204 INFO L85 PathProgramCache]: Analyzing trace with hash 779276902, now seen corresponding path program 1 times [2024-08-14 10:36:02,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:02,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383383766] [2024-08-14 10:36:02,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:02,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:02,716 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-08-14 10:36:02,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:02,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383383766] [2024-08-14 10:36:02,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383383766] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:36:02,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12979253] [2024-08-14 10:36:02,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:02,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:36:02,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:36:02,719 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:36:02,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-08-14 10:36:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:03,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 29 conjunts are in the unsatisfiable core [2024-08-14 10:36:03,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:36:03,634 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-08-14 10:36:03,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-08-14 10:36:03,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2024-08-14 10:36:04,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2024-08-14 10:36:04,096 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-08-14 10:36:04,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:36:04,298 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-08-14 10:36:04,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 146 treesize of output 98 [2024-08-14 10:36:04,354 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 8 times theorem prover too weak. 4 trivial. 0 not checked. [2024-08-14 10:36:04,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12979253] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:36:04,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:36:04,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-08-14 10:36:04,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147128505] [2024-08-14 10:36:04,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:36:04,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-14 10:36:04,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:04,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-14 10:36:04,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=73, Unknown=6, NotChecked=0, Total=110 [2024-08-14 10:36:04,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:04,356 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:04,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:04,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:04,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:04,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:04,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:04,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:04,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:04,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:04,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:36:04,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-08-14 10:36:04,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-08-14 10:36:04,719 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:04,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:04,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1147295042, now seen corresponding path program 1 times [2024-08-14 10:36:04,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:04,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601122390] [2024-08-14 10:36:04,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:04,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:04,876 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-14 10:36:04,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:04,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601122390] [2024-08-14 10:36:04,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601122390] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:36:04,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818582024] [2024-08-14 10:36:04,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:04,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:36:04,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:36:04,878 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:36:04,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-08-14 10:36:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:05,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 20 conjunts are in the unsatisfiable core [2024-08-14 10:36:05,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:36:05,681 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-14 10:36:05,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-08-14 10:36:05,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:36:05,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:36:05,903 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-08-14 10:36:05,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:36:05,924 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5506 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_5506) |c_~#A~0.base|) |c_~#A~0.offset|) 0)) is different from false [2024-08-14 10:36:05,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-08-14 10:36:06,003 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 10 not checked. [2024-08-14 10:36:06,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818582024] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:36:06,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:36:06,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-08-14 10:36:06,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994526297] [2024-08-14 10:36:06,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:36:06,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-14 10:36:06,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:06,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-14 10:36:06,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=162, Unknown=3, NotChecked=26, Total=240 [2024-08-14 10:36:06,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:06,005 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:06,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.1875) internal successors, (115), 15 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:06,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:06,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:06,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:06,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:36:06,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:08,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:08,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:08,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:08,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-08-14 10:36:08,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,25 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:36:08,286 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:08,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:08,286 INFO L85 PathProgramCache]: Analyzing trace with hash -946745788, now seen corresponding path program 1 times [2024-08-14 10:36:08,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:08,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143313016] [2024-08-14 10:36:08,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:08,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:08,470 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:36:08,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:08,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143313016] [2024-08-14 10:36:08,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143313016] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:36:08,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432679400] [2024-08-14 10:36:08,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:08,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:36:08,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:36:08,472 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:36:08,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-08-14 10:36:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:09,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-14 10:36:09,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:36:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:36:09,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:36:09,649 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:36:09,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432679400] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:36:09,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:36:09,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-08-14 10:36:09,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064090335] [2024-08-14 10:36:09,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:36:09,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-14 10:36:09,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:09,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-14 10:36:09,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-08-14 10:36:09,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:09,650 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:09,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 13 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:09,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:09,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:09,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:09,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:09,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:09,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:18,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:18,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:18,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:18,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:18,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:36:18,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:18,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-08-14 10:36:18,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-08-14 10:36:18,607 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:18,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:18,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1434309244, now seen corresponding path program 1 times [2024-08-14 10:36:18,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:18,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697255758] [2024-08-14 10:36:18,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:18,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 10:36:18,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:18,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697255758] [2024-08-14 10:36:18,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697255758] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:36:18,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:36:18,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:36:18,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558260707] [2024-08-14 10:36:18,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:36:18,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 10:36:18,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:18,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 10:36:18,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-14 10:36:18,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:18,738 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:18,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:18,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:18,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:18,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:18,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:18,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:36:18,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:18,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:36:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:36:19,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-08-14 10:36:19,178 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:19,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:19,178 INFO L85 PathProgramCache]: Analyzing trace with hash 949392437, now seen corresponding path program 1 times [2024-08-14 10:36:19,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:19,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997194168] [2024-08-14 10:36:19,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:19,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:19,834 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-08-14 10:36:19,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:19,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997194168] [2024-08-14 10:36:19,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997194168] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:36:19,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556888718] [2024-08-14 10:36:19,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:19,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:36:19,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:36:19,836 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:36:19,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-08-14 10:36:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:20,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 27 conjunts are in the unsatisfiable core [2024-08-14 10:36:20,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:36:20,777 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-14 10:36:20,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-08-14 10:36:20,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:36:20,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:36:21,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:36:21,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-08-14 10:36:21,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-08-14 10:36:21,143 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 10:36:21,143 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:36:21,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-08-14 10:36:22,012 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 14 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 10:36:22,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556888718] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:36:22,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:36:22,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 17 [2024-08-14 10:36:22,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345465996] [2024-08-14 10:36:22,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:36:22,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-14 10:36:22,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:22,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-14 10:36:22,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=246, Unknown=3, NotChecked=0, Total=306 [2024-08-14 10:36:22,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:22,015 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:22,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.61111111111111) internal successors, (209), 17 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:22,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:22,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:22,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:22,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:22,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:36:22,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:22,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:36:22,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-14 10:36:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:36:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:28,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-08-14 10:36:28,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-08-14 10:36:28,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining) [2024-08-14 10:36:28,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-08-14 10:36:28,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-08-14 10:36:28,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,27 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:36:28,578 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 10:36:28,578 INFO L308 ceAbstractionStarter]: Result for error location t_funThread2of4ForFork0 was SAFE,SAFE,SAFE,SAFE (2/5) [2024-08-14 10:36:28,582 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:36:28,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:36:28,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:36:28,585 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:36:28,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (28)] Waiting until timeout for monitored process [2024-08-14 10:36:28,589 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:36:28,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread3of4ForFork0 ======== [2024-08-14 10:36:28,589 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=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ccc1462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:36:28,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-14 10:36:29,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:29,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:29,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1515883193, now seen corresponding path program 1 times [2024-08-14 10:36:29,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:29,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483943346] [2024-08-14 10:36:29,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:29,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-08-14 10:36:30,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:30,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483943346] [2024-08-14 10:36:30,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483943346] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:36:30,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:36:30,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 10:36:30,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974371617] [2024-08-14 10:36:30,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:36:30,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-14 10:36:30,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:30,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-14 10:36:30,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-14 10:36:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:30,049 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:30,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:30,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:30,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:30,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-08-14 10:36:30,510 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:30,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:30,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1080453452, now seen corresponding path program 1 times [2024-08-14 10:36:30,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:30,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14021848] [2024-08-14 10:36:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:30,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:30,989 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-14 10:36:30,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:30,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14021848] [2024-08-14 10:36:30,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14021848] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:36:30,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:36:30,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:36:30,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461214437] [2024-08-14 10:36:30,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:36:30,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:36:30,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:30,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:36:30,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:36:30,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:30,990 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:30,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:30,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:30,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:31,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:31,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:31,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-08-14 10:36:31,632 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:31,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:31,632 INFO L85 PathProgramCache]: Analyzing trace with hash 2113050041, now seen corresponding path program 1 times [2024-08-14 10:36:31,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:31,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174913854] [2024-08-14 10:36:31,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:31,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:32,184 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-08-14 10:36:32,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:32,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174913854] [2024-08-14 10:36:32,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174913854] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:36:32,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:36:32,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:36:32,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508408705] [2024-08-14 10:36:32,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:36:32,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:36:32,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:32,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:36:32,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:36:32,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:32,189 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:32,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:32,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:32,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:32,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:32,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:32,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:32,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:32,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-08-14 10:36:32,588 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:32,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:32,588 INFO L85 PathProgramCache]: Analyzing trace with hash -506896367, now seen corresponding path program 1 times [2024-08-14 10:36:32,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:32,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992151817] [2024-08-14 10:36:32,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:32,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:33,049 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-08-14 10:36:33,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:33,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992151817] [2024-08-14 10:36:33,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992151817] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:36:33,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:36:33,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:36:33,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690048666] [2024-08-14 10:36:33,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:36:33,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:36:33,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:33,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:36:33,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:36:33,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:33,051 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:33,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:33,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:33,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:33,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:33,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:33,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:33,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-08-14 10:36:33,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:33,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:33,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1276626546, now seen corresponding path program 1 times [2024-08-14 10:36:33,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:33,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066873905] [2024-08-14 10:36:33,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:33,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:33,847 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 10:36:33,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:33,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066873905] [2024-08-14 10:36:33,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066873905] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:36:33,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312594159] [2024-08-14 10:36:33,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:33,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:36:33,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:36:33,851 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:36:33,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-08-14 10:36:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:34,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 30 conjunts are in the unsatisfiable core [2024-08-14 10:36:34,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:36:34,863 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-08-14 10:36:34,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-08-14 10:36:35,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2024-08-14 10:36:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-08-14 10:36:35,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:36:35,321 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_7291 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_7291) |c_~#A~0.base|) (+ |c_~#A~0.offset| 4)) 0)) (forall ((v_ArrVal_7291 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_7291) |c_~#B~0.base|) (+ 8 |c_~#B~0.offset|)) 0)) (forall ((v_ArrVal_7291 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_7291) |c_~#B~0.base|) (+ |c_~#B~0.offset| 4)) 0)) (forall ((v_ArrVal_7291 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_7291) |c_~#A~0.base|) (+ |c_~#A~0.offset| 8)) 0))) is different from false [2024-08-14 10:36:35,399 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-08-14 10:36:35,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 146 treesize of output 98 [2024-08-14 10:36:35,532 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 4 not checked. [2024-08-14 10:36:35,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312594159] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:36:35,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:36:35,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-08-14 10:36:35,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426199634] [2024-08-14 10:36:35,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:36:35,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-14 10:36:35,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:35,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-14 10:36:35,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=64, Unknown=1, NotChecked=16, Total=110 [2024-08-14 10:36:35,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:35,535 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:35,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.2) internal successors, (142), 10 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:35,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:35,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:35,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:35,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:36:35,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-08-14 10:36:35,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,29 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:36:35,906 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:35,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:35,906 INFO L85 PathProgramCache]: Analyzing trace with hash -38633716, now seen corresponding path program 1 times [2024-08-14 10:36:35,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:35,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560662510] [2024-08-14 10:36:35,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:35,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-08-14 10:36:36,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:36,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560662510] [2024-08-14 10:36:36,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560662510] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:36:36,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320745017] [2024-08-14 10:36:36,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:36,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:36:36,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:36:36,145 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:36:36,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-08-14 10:36:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:37,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 23 conjunts are in the unsatisfiable core [2024-08-14 10:36:37,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:36:37,035 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-14 10:36:37,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-08-14 10:36:37,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:36:37,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:36:37,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:36:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 10:36:37,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:36:37,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-08-14 10:36:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 14 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 10:36:38,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320745017] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:36:38,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:36:38,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-08-14 10:36:38,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582684615] [2024-08-14 10:36:38,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:36:38,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-14 10:36:38,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:38,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-14 10:36:38,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=182, Unknown=6, NotChecked=0, Total=240 [2024-08-14 10:36:38,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:38,013 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:38,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.1875) internal successors, (163), 15 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:38,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:38,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:38,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:38,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:38,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:36:38,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:40,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:40,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:40,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:40,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:40,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-08-14 10:36:40,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,30 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:36:40,766 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:40,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:40,766 INFO L85 PathProgramCache]: Analyzing trace with hash -684730583, now seen corresponding path program 1 times [2024-08-14 10:36:40,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:40,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358679804] [2024-08-14 10:36:40,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:40,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:36:40,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:40,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358679804] [2024-08-14 10:36:40,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358679804] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:36:40,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776281532] [2024-08-14 10:36:40,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:40,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:36:40,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:36:40,932 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:36:40,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-08-14 10:36:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:41,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-14 10:36:41,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:36:41,983 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:36:41,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:36:42,067 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:36:42,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776281532] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:36:42,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:36:42,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-08-14 10:36:42,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574569286] [2024-08-14 10:36:42,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:36:42,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-14 10:36:42,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:42,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-14 10:36:42,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-08-14 10:36:42,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:42,068 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:42,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:42,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:42,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:42,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:42,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:42,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:42,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:42,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:36:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:42,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-08-14 10:36:42,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-08-14 10:36:42,955 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:42,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:42,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1825219855, now seen corresponding path program 1 times [2024-08-14 10:36:42,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:42,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146592867] [2024-08-14 10:36:42,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:42,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:43,107 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-08-14 10:36:43,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:43,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146592867] [2024-08-14 10:36:43,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146592867] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:36:43,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:36:43,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 10:36:43,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208594521] [2024-08-14 10:36:43,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:36:43,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 10:36:43,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:43,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 10:36:43,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-08-14 10:36:43,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:43,109 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:43,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:43,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:43,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:43,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:43,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:43,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:43,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:36:43,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:43,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:43,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:43,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:36:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:36:43,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-08-14 10:36:43,390 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:36:43,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:36:43,391 INFO L85 PathProgramCache]: Analyzing trace with hash 259356947, now seen corresponding path program 2 times [2024-08-14 10:36:43,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:36:43,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406281632] [2024-08-14 10:36:43,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:36:43,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:36:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:36:43,840 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-08-14 10:36:43,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:36:43,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406281632] [2024-08-14 10:36:43,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406281632] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:36:43,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331129020] [2024-08-14 10:36:43,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-14 10:36:43,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:36:43,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:36:43,843 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:36:43,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-08-14 10:36:44,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-14 10:36:44,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:36:44,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 30 conjunts are in the unsatisfiable core [2024-08-14 10:36:44,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:36:44,819 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-14 10:36:44,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-08-14 10:36:44,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:36:44,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:36:45,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-14 10:36:45,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-08-14 10:36:45,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-08-14 10:36:45,100 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-14 10:36:45,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:36:45,146 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7801 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_7801) |c_~#A~0.base|) |c_~#A~0.offset|) 0)) is different from false [2024-08-14 10:36:45,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-08-14 10:36:45,283 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 16 not checked. [2024-08-14 10:36:45,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331129020] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:36:45,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:36:45,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 17 [2024-08-14 10:36:45,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879252350] [2024-08-14 10:36:45,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:36:45,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-14 10:36:45,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:36:45,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-14 10:36:45,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=221, Unknown=1, NotChecked=30, Total=306 [2024-08-14 10:36:45,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:45,285 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:36:45,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.555555555555555) internal successors, (208), 17 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:36:45,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:45,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:45,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:45,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:45,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:45,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-14 10:36:45,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:45,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:36:45,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:53,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:36:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:36:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 10:36:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-14 10:36:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:36:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 10:36:53,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-08-14 10:36:53,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-08-14 10:36:53,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining) [2024-08-14 10:36:53,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-08-14 10:36:53,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-08-14 10:36:53,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-08-14 10:36:53,251 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 10:36:53,251 INFO L308 ceAbstractionStarter]: Result for error location t_funThread3of4ForFork0 was SAFE,SAFE,SAFE,SAFE (3/5) [2024-08-14 10:36:53,254 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:36:53,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:36:53,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:36:53,256 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:36:53,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (33)] Waiting until timeout for monitored process [2024-08-14 10:36:53,262 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:36:53,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of4ForFork0 ======== [2024-08-14 10:36:53,262 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=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ccc1462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:36:53,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations.