./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/popl20-bad-threaded-sum-2.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7bc0c755 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/weaver/popl20-bad-threaded-sum-2.wvr.c ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/popl20-bad-threaded-sum-2.wvr.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.dk.goblint-validation-atomicfix-7bc0c75-m [2024-08-22 22:59:57,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-22 22:59:57,707 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-22 22:59:57,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-22 22:59:57,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-22 22:59:57,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-22 22:59:57,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-22 22:59:57,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-22 22:59:57,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-22 22:59:57,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-22 22:59:57,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-22 22:59:57,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-22 22:59:57,736 INFO L153 SettingsManager]: * Use SBE=true [2024-08-22 22:59:57,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-22 22:59:57,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-22 22:59:57,739 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-22 22:59:57,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-22 22:59:57,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-22 22:59:57,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-22 22:59:57,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-22 22:59:57,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-22 22:59:57,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-22 22:59:57,742 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-22 22:59:57,743 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-22 22:59:57,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-22 22:59:57,743 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-22 22:59:57,743 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-22 22:59:57,743 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-22 22:59:57,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-22 22:59:57,744 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-22 22:59:57,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-22 22:59:57,744 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-22 22:59:57,744 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-22 22:59:57,744 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-22 22:59:57,745 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-22 22:59:57,745 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-22 22:59:57,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-22 22:59:57,745 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-22 22:59:57,745 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-22 22:59:57,745 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-22 22:59:57,745 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-22 22:59:57,747 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-22 22:59:57,747 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-22 22:59:57,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-22 22:59:57,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-22 22:59:57,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-22 22:59:57,948 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-22 22:59:57,949 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-22 22:59:57,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/popl20-bad-threaded-sum-2.wvr.yml/witness.yml [2024-08-22 22:59:58,037 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-22 22:59:58,037 INFO L274 PluginConnector]: CDTParser initialized [2024-08-22 22:59:58,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2024-08-22 22:59:59,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-22 22:59:59,360 INFO L384 CDTParser]: Found 1 translation units. [2024-08-22 22:59:59,361 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2024-08-22 22:59:59,366 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7f1437318/e670828f0dfe43fb87e8afeabc5a0988/FLAGcb12d1f08 [2024-08-22 22:59:59,779 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7f1437318/e670828f0dfe43fb87e8afeabc5a0988 [2024-08-22 22:59:59,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-22 22:59:59,780 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-22 22:59:59,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-22 22:59:59,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-22 22:59:59,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-22 22:59:59,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.08 10:59:58" (1/2) ... [2024-08-22 22:59:59,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2efd10e7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 10:59:59, skipping insertion in model container [2024-08-22 22:59:59,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.08 10:59:58" (1/2) ... [2024-08-22 22:59:59,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@48217095 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 10:59:59, skipping insertion in model container [2024-08-22 22:59:59,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:59:59" (2/2) ... [2024-08-22 22:59:59,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2efd10e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:59:59, skipping insertion in model container [2024-08-22 22:59:59,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:59:59" (2/2) ... [2024-08-22 22:59:59,788 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-22 22:59:59,795 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-22 22:59:59,796 INFO L97 edCorrectnessWitness]: Location invariant before [L90-L90] ! multithreaded || (((-2LL + (long long )S) + (long long )T >= 0LL && (4294967294LL - (long long )S) + (long long )T >= 0LL) && (4294967294LL + (long long )S) - (long long )T >= 0LL) [2024-08-22 22:59:59,796 INFO L97 edCorrectnessWitness]: Location invariant before [L91-L91] ! multithreaded || (((-2LL + (long long )S) + (long long )T >= 0LL && (4294967294LL - (long long )S) + (long long )T >= 0LL) && (4294967294LL + (long long )S) - (long long )T >= 0LL) [2024-08-22 22:59:59,798 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-22 22:59:59,798 INFO L106 edCorrectnessWitness]: ghost_update [L89-L89] multithreaded = 1; [2024-08-22 22:59:59,813 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-22 22:59:59,952 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2502,2515] [2024-08-22 22:59:59,956 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-22 22:59:59,968 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-22 23:00:00,029 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2502,2515] [2024-08-22 23:00:00,030 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-22 23:00:00,052 INFO L206 MainTranslator]: Completed translation [2024-08-22 23:00:00,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00 WrapperNode [2024-08-22 23:00:00,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-22 23:00:00,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-22 23:00:00,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-22 23:00:00,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-22 23:00:00,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00" (1/1) ... [2024-08-22 23:00:00,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00" (1/1) ... [2024-08-22 23:00:00,092 INFO L138 Inliner]: procedures = 20, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2024-08-22 23:00:00,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-22 23:00:00,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-22 23:00:00,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-22 23:00:00,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-22 23:00:00,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00" (1/1) ... [2024-08-22 23:00:00,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00" (1/1) ... [2024-08-22 23:00:00,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00" (1/1) ... [2024-08-22 23:00:00,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00" (1/1) ... [2024-08-22 23:00:00,107 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00" (1/1) ... [2024-08-22 23:00:00,114 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00" (1/1) ... [2024-08-22 23:00:00,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00" (1/1) ... [2024-08-22 23:00:00,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00" (1/1) ... [2024-08-22 23:00:00,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-22 23:00:00,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-22 23:00:00,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-22 23:00:00,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-22 23:00:00,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00" (1/1) ... [2024-08-22 23:00:00,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-22 23:00:00,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 23:00:00,148 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) [2024-08-22 23:00:00,150 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 [2024-08-22 23:00:00,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-22 23:00:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-22 23:00:00,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-22 23:00:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-22 23:00:00,181 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-22 23:00:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-22 23:00:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-22 23:00:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-22 23:00:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-22 23:00:00,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-22 23:00:00,182 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-22 23:00:00,267 INFO L243 CfgBuilder]: Building ICFG [2024-08-22 23:00:00,270 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-22 23:00:00,465 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-22 23:00:00,466 INFO L292 CfgBuilder]: Performing block encoding [2024-08-22 23:00:00,581 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-22 23:00:00,581 INFO L319 CfgBuilder]: Removed 2 assume(true) statements. [2024-08-22 23:00:00,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 11:00:00 BoogieIcfgContainer [2024-08-22 23:00:00,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-22 23:00:00,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-22 23:00:00,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-22 23:00:00,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-22 23:00:00,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.08 10:59:58" (1/4) ... [2024-08-22 23:00:00,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b54477a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.08 11:00:00, skipping insertion in model container [2024-08-22 23:00:00,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:59:59" (2/4) ... [2024-08-22 23:00:00,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b54477a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 11:00:00, skipping insertion in model container [2024-08-22 23:00:00,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:00:00" (3/4) ... [2024-08-22 23:00:00,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b54477a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 11:00:00, skipping insertion in model container [2024-08-22 23:00:00,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 11:00:00" (4/4) ... [2024-08-22 23:00:00,589 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-threaded-sum-2.wvr.c [2024-08-22 23:00:00,602 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-22 23:00:00,603 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-08-22 23:00:00,603 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-22 23:00:00,657 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-22 23:00:00,691 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-22 23:00:00,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-22 23:00:00,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 23:00:00,693 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) [2024-08-22 23:00:00,694 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 [2024-08-22 23:00:00,722 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-22 23:00:00,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-22 23:00:00,739 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;@2de2798c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-22 23:00:00,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-08-22 23:00:00,807 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-22 23:00:00,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 23:00:00,811 INFO L85 PathProgramCache]: Analyzing trace with hash 999955343, now seen corresponding path program 1 times [2024-08-22 23:00:00,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 23:00:00,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940690916] [2024-08-22 23:00:00,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 23:00:00,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 23:00:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 23:00:01,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-22 23:00:01,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 23:00:01,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940690916] [2024-08-22 23:00:01,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940690916] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-22 23:00:01,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-22 23:00:01,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-22 23:00:01,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191106559] [2024-08-22 23:00:01,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-22 23:00:01,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-22 23:00:01,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 23:00:01,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-22 23:00:01,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-22 23:00:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:00:01,368 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 23:00:01,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-08-22 23:00:01,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:00:01,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 23:00:01,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-22 23:00:01,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-22 23:00:01,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 23:00:01,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1787962288, now seen corresponding path program 1 times [2024-08-22 23:00:01,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 23:00:01,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245841166] [2024-08-22 23:00:01,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 23:00:01,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 23:00:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 23:00:01,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-22 23:00:01,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 23:00:01,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245841166] [2024-08-22 23:00:01,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245841166] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-22 23:00:01,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837698975] [2024-08-22 23:00:01,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 23:00:01,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 23:00:01,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 23:00:01,737 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) [2024-08-22 23:00:01,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-22 23:00:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 23:00:01,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-22 23:00:01,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 23:00:02,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-22 23:00:02,035 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 23:00:02,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-22 23:00:02,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837698975] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 23:00:02,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-22 23:00:02,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-08-22 23:00:02,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836429451] [2024-08-22 23:00:02,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-22 23:00:02,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-08-22 23:00:02,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 23:00:02,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-08-22 23:00:02,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-08-22 23:00:02,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:00:02,209 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 23:00:02,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 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) [2024-08-22 23:00:02,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 23:00:02,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:00:02,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 23:00:02,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-22 23:00:02,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-22 23:00:02,551 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 [2024-08-22 23:00:02,552 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-22 23:00:02,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 23:00:02,552 INFO L85 PathProgramCache]: Analyzing trace with hash -267350345, now seen corresponding path program 2 times [2024-08-22 23:00:02,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 23:00:02,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508154736] [2024-08-22 23:00:02,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 23:00:02,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 23:00:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 23:00:02,882 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-22 23:00:02,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 23:00:02,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508154736] [2024-08-22 23:00:02,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508154736] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-22 23:00:02,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529461812] [2024-08-22 23:00:02,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-22 23:00:02,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 23:00:02,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 23:00:02,885 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) [2024-08-22 23:00:02,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-22 23:00:02,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-22 23:00:02,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-22 23:00:02,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 14 conjunts are in the unsatisfiable core [2024-08-22 23:00:02,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 23:00:03,113 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-22 23:00:03,113 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 23:00:03,257 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-22 23:00:03,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529461812] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 23:00:03,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-22 23:00:03,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 7] total 18 [2024-08-22 23:00:03,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937606171] [2024-08-22 23:00:03,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-22 23:00:03,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-22 23:00:03,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 23:00:03,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-22 23:00:03,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-08-22 23:00:03,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:00:03,262 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 23:00:03,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 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) [2024-08-22 23:00:03,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 23:00:03,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-22 23:00:03,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:00:03,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 23:00:03,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-22 23:00:03,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-08-22 23:00:03,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-22 23:00:03,918 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 [2024-08-22 23:00:03,919 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-22 23:00:03,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 23:00:03,919 INFO L85 PathProgramCache]: Analyzing trace with hash -43503682, now seen corresponding path program 3 times [2024-08-22 23:00:03,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 23:00:03,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036338579] [2024-08-22 23:00:03,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 23:00:03,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 23:00:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 23:00:04,199 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-08-22 23:00:04,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 23:00:04,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036338579] [2024-08-22 23:00:04,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036338579] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-22 23:00:04,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-22 23:00:04,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-22 23:00:04,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948999107] [2024-08-22 23:00:04,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-22 23:00:04,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-22 23:00:04,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 23:00:04,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-22 23:00:04,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-22 23:00:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:00:04,202 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 23:00:04,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 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) [2024-08-22 23:00:04,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 23:00:04,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-22 23:00:04,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-08-22 23:00:04,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:00:04,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 23:00:04,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-22 23:00:04,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-08-22 23:00:04,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-22 23:00:04,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-22 23:00:04,297 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-22 23:00:04,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 23:00:04,297 INFO L85 PathProgramCache]: Analyzing trace with hash -196063368, now seen corresponding path program 4 times [2024-08-22 23:00:04,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 23:00:04,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278319385] [2024-08-22 23:00:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 23:00:04,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 23:00:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 23:00:04,542 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-08-22 23:00:04,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 23:00:04,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278319385] [2024-08-22 23:00:04,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278319385] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-22 23:00:04,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-22 23:00:04,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-22 23:00:04,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391332930] [2024-08-22 23:00:04,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-22 23:00:04,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-22 23:00:04,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 23:00:04,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-22 23:00:04,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-22 23:00:04,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:00:04,544 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 23:00:04,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-08-22 23:00:04,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 23:00:04,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-22 23:00:04,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-08-22 23:00:04,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-22 23:00:04,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:00:04,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 23:00:04,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-22 23:00:04,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-08-22 23:00:04,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-22 23:00:04,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 23:00:04,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-22 23:00:04,635 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-22 23:00:04,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 23:00:04,635 INFO L85 PathProgramCache]: Analyzing trace with hash 214429499, now seen corresponding path program 5 times [2024-08-22 23:00:04,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 23:00:04,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900608333] [2024-08-22 23:00:04,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 23:00:04,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 23:00:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 23:00:13,436 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-22 23:00:13,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 23:00:13,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900608333] [2024-08-22 23:00:13,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900608333] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-22 23:00:13,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495095509] [2024-08-22 23:00:13,438 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-22 23:00:13,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 23:00:13,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 23:00:13,439 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) [2024-08-22 23:00:13,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-22 23:00:13,609 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-08-22 23:00:13,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-22 23:00:13,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 38 conjunts are in the unsatisfiable core [2024-08-22 23:00:13,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 23:00:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-22 23:00:20,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 23:01:45,235 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-22 23:01:45,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495095509] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 23:01:45,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-22 23:01:45,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 20] total 58 [2024-08-22 23:01:45,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464941642] [2024-08-22 23:01:45,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-22 23:01:45,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-08-22 23:01:45,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 23:01:45,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-08-22 23:01:45,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=473, Invalid=2926, Unknown=23, NotChecked=0, Total=3422 [2024-08-22 23:01:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:01:45,239 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 23:01:45,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.4745762711864407) internal successors, (146), 58 states have internal predecessors, (146), 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) [2024-08-22 23:01:45,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 23:01:45,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-22 23:01:45,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-08-22 23:01:45,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-22 23:01:45,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-22 23:01:45,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:01:48,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-22 23:01:54,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-22 23:01:56,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-22 23:02:11,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-22 23:02:18,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-22 23:02:43,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 23:02:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-22 23:02:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-08-22 23:02:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-22 23:02:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 23:02:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-08-22 23:02:43,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-22 23:02:43,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 23:02:43,657 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-22 23:02:43,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 23:02:43,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1639993916, now seen corresponding path program 6 times [2024-08-22 23:02:43,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 23:02:43,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976725627] [2024-08-22 23:02:43,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 23:02:43,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 23:02:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 23:03:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-22 23:03:22,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 23:03:22,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976725627] [2024-08-22 23:03:22,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976725627] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-22 23:03:22,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312364744] [2024-08-22 23:03:22,670 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-22 23:03:22,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 23:03:22,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 23:03:22,672 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-22 23:03:22,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-22 23:03:22,996 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-08-22 23:03:22,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-22 23:03:22,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 62 conjunts are in the unsatisfiable core [2024-08-22 23:03:23,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 23:03:29,064 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-22 23:03:29,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 23:09:25,650 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-22 23:09:25,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312364744] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 23:09:25,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-22 23:09:25,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 34, 34] total 98 [2024-08-22 23:09:25,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597068238] [2024-08-22 23:09:25,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-22 23:09:25,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2024-08-22 23:09:25,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 23:09:25,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2024-08-22 23:09:25,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1282, Invalid=8334, Unknown=86, NotChecked=0, Total=9702 [2024-08-22 23:09:25,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:09:25,656 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 23:09:25,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 2.414141414141414) internal successors, (239), 98 states have internal predecessors, (239), 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) [2024-08-22 23:09:25,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 23:09:25,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-22 23:09:25,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-08-22 23:09:25,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-22 23:09:25,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-22 23:09:25,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2024-08-22 23:09:25,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 23:09:30,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-22 23:10:40,316 WARN L293 SmtUtils]: Spent 33.89s on a formula simplification. DAG size of input: 285 DAG size of output: 257 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-22 23:11:39,208 WARN L293 SmtUtils]: Spent 27.12s on a formula simplification. DAG size of input: 291 DAG size of output: 263 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-22 23:12:28,189 WARN L293 SmtUtils]: Spent 20.46s on a formula simplification. DAG size of input: 289 DAG size of output: 261 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-22 23:13:25,819 WARN L293 SmtUtils]: Spent 12.98s on a formula simplification. DAG size of input: 291 DAG size of output: 263 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Killed by 15