./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/unroll-4.wvr.c --full-output --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/unroll-4.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/unroll-4.wvr.c ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/unroll-4.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 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-validation-atomicfix-7bc0c75-m [2024-08-22 20:32:00,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-22 20:32:00,231 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-22 20:32:00,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-22 20:32:00,236 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-22 20:32:00,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-22 20:32:00,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-22 20:32:00,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-22 20:32:00,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-22 20:32:00,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-22 20:32:00,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-22 20:32:00,272 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-22 20:32:00,272 INFO L153 SettingsManager]: * Use SBE=true [2024-08-22 20:32:00,274 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-22 20:32:00,275 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-22 20:32:00,275 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-22 20:32:00,275 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-22 20:32:00,276 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-22 20:32:00,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-22 20:32:00,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-22 20:32:00,277 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-22 20:32:00,277 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-22 20:32:00,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-22 20:32:00,281 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-22 20:32:00,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-22 20:32:00,281 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-22 20:32:00,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-22 20:32:00,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-22 20:32:00,282 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-22 20:32:00,282 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-22 20:32:00,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-22 20:32:00,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-22 20:32:00,283 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-22 20:32:00,283 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-22 20:32:00,283 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-22 20:32:00,284 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-22 20:32:00,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-22 20:32:00,284 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-22 20:32:00,285 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-22 20:32:00,286 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-22 20:32:00,286 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-22 20:32:00,287 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-22 20:32:00,287 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-22 20:32:00,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-22 20:32:00,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-22 20:32:00,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-22 20:32:00,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-22 20:32:00,568 INFO L274 PluginConnector]: CDTParser initialized [2024-08-22 20:32:00,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/unroll-4.wvr.c [2024-08-22 20:32:02,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-22 20:32:02,195 INFO L384 CDTParser]: Found 1 translation units. [2024-08-22 20:32:02,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-4.wvr.c [2024-08-22 20:32:02,203 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/00edb4006/664238f4c55843fcadced793c048799c/FLAG33828f664 [2024-08-22 20:32:02,219 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/00edb4006/664238f4c55843fcadced793c048799c [2024-08-22 20:32:02,222 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-22 20:32:02,222 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-22 20:32:02,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/unroll-4.wvr.yml/witness.yml [2024-08-22 20:32:02,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-22 20:32:02,313 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-22 20:32:02,314 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-22 20:32:02,314 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-22 20:32:02,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-22 20:32:02,322 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 08:32:02" (1/2) ... [2024-08-22 20:32:02,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d4984aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 08:32:02, skipping insertion in model container [2024-08-22 20:32:02,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 08:32:02" (1/2) ... [2024-08-22 20:32:02,325 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@b84358b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 08:32:02, skipping insertion in model container [2024-08-22 20:32:02,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.08 08:32:02" (2/2) ... [2024-08-22 20:32:02,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d4984aa and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:32:02, skipping insertion in model container [2024-08-22 20:32:02,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.08 08:32:02" (2/2) ... [2024-08-22 20:32:02,328 INFO L81 nessWitnessExtractor]: Only extracting loop invariants from correctness witness [2024-08-22 20:32:02,340 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-22 20:32:02,344 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-22 20:32:02,344 INFO L106 edCorrectnessWitness]: ghost_update [L88-L88] multithreaded = 1; [2024-08-22 20:32:02,364 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-22 20:32:02,533 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/unroll-4.wvr.c[2598,2611] [2024-08-22 20:32:02,546 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-22 20:32:02,554 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-08-22 20:32:02,599 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/unroll-4.wvr.c[2598,2611] [2024-08-22 20:32:02,603 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-22 20:32:02,617 INFO L206 MainTranslator]: Completed translation [2024-08-22 20:32:02,618 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:32:02 WrapperNode [2024-08-22 20:32:02,618 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-22 20:32:02,619 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-22 20:32:02,619 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-22 20:32:02,619 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-22 20:32:02,625 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 22.08 08:32:02" (1/1) ... [2024-08-22 20:32:02,633 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 22.08 08:32:02" (1/1) ... [2024-08-22 20:32:02,653 INFO L138 Inliner]: procedures = 23, calls = 26, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 150 [2024-08-22 20:32:02,654 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-22 20:32:02,655 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-22 20:32:02,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-22 20:32:02,655 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-22 20:32:02,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:32:02" (1/1) ... [2024-08-22 20:32:02,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:32:02" (1/1) ... [2024-08-22 20:32:02,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:32:02" (1/1) ... [2024-08-22 20:32:02,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:32:02" (1/1) ... [2024-08-22 20:32:02,671 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:32:02" (1/1) ... [2024-08-22 20:32:02,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:32:02" (1/1) ... [2024-08-22 20:32:02,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:32:02" (1/1) ... [2024-08-22 20:32:02,677 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:32:02" (1/1) ... [2024-08-22 20:32:02,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-22 20:32:02,681 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-22 20:32:02,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-22 20:32:02,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-22 20:32:02,682 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:32:02" (1/1) ... [2024-08-22 20:32:02,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-22 20:32:02,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 20:32:02,720 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 20:32:02,722 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 20:32:02,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-22 20:32:02,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-22 20:32:02,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-22 20:32:02,748 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-22 20:32:02,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-22 20:32:02,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-22 20:32:02,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-22 20:32:02,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-22 20:32:02,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-22 20:32:02,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-22 20:32:02,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-22 20:32:02,750 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 20:32:02,827 INFO L243 CfgBuilder]: Building ICFG [2024-08-22 20:32:02,829 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-22 20:32:03,081 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-22 20:32:03,081 INFO L292 CfgBuilder]: Performing block encoding [2024-08-22 20:32:03,320 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-22 20:32:03,321 INFO L319 CfgBuilder]: Removed 3 assume(true) statements. [2024-08-22 20:32:03,321 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 08:32:03 BoogieIcfgContainer [2024-08-22 20:32:03,322 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-22 20:32:03,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-22 20:32:03,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-22 20:32:03,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-22 20:32:03,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 08:32:02" (1/4) ... [2024-08-22 20:32:03,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8ec4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 08:32:03, skipping insertion in model container [2024-08-22 20:32:03,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.08 08:32:02" (2/4) ... [2024-08-22 20:32:03,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8ec4e0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.08 08:32:03, skipping insertion in model container [2024-08-22 20:32:03,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:32:02" (3/4) ... [2024-08-22 20:32:03,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8ec4e0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.08 08:32:03, skipping insertion in model container [2024-08-22 20:32:03,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 08:32:03" (4/4) ... [2024-08-22 20:32:03,332 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.c [2024-08-22 20:32:03,351 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-22 20:32:03,352 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-22 20:32:03,353 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-22 20:32:03,404 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-22 20:32:03,448 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-22 20:32:03,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-22 20:32:03,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 20:32:03,450 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 20:32:03,452 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 20:32:03,481 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-22 20:32:03,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-22 20:32:03,496 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;@2cbe83d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-22 20:32:03,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-22 20:32:03,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:32:03,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:32:03,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1040297280, now seen corresponding path program 1 times [2024-08-22 20:32:03,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 20:32:03,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886987035] [2024-08-22 20:32:03,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 20:32:03,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 20:32:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 20:32:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-22 20:32:04,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 20:32:04,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886987035] [2024-08-22 20:32:04,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886987035] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-22 20:32:04,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-22 20:32:04,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-22 20:32:04,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530324815] [2024-08-22 20:32:04,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-22 20:32:04,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-22 20:32:04,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 20:32:04,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-22 20:32:04,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-22 20:32:04,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:32:04,048 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 20:32:04,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 20:32:04,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:32:04,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:32:04,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-22 20:32:04,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:32:04,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:32:04,108 INFO L85 PathProgramCache]: Analyzing trace with hash -947970678, now seen corresponding path program 1 times [2024-08-22 20:32:04,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 20:32:04,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897929190] [2024-08-22 20:32:04,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 20:32:04,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 20:32:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 20:32:04,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-22 20:32:04,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 20:32:04,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897929190] [2024-08-22 20:32:04,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897929190] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-22 20:32:04,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-22 20:32:04,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-22 20:32:04,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118210569] [2024-08-22 20:32:04,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-22 20:32:04,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-22 20:32:04,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 20:32:04,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-22 20:32:04,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-22 20:32:04,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:32:04,338 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 20:32:04,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 20:32:04,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:32:04,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:32:04,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:32:04,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-22 20:32:04,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-22 20:32:04,440 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:32:04,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:32:04,440 INFO L85 PathProgramCache]: Analyzing trace with hash 209163686, now seen corresponding path program 1 times [2024-08-22 20:32:04,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 20:32:04,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942088349] [2024-08-22 20:32:04,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 20:32:04,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 20:32:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 20:32:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-22 20:32:04,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 20:32:04,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942088349] [2024-08-22 20:32:04,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942088349] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-22 20:32:04,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922891194] [2024-08-22 20:32:04,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 20:32:04,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 20:32:04,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 20:32:04,700 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 20:32:04,702 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 20:32:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 20:32:04,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 32 conjunts are in the unsatisfiable core [2024-08-22 20:32:04,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 20:32:04,910 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 15 treesize of output 1 [2024-08-22 20:32:05,320 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-22 20:32:05,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 20:32:05,923 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 268 treesize of output 236 [2024-08-22 20:32:06,396 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-22 20:32:06,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 15 new quantified variables, introduced 36 case distinctions, treesize of input 3063 treesize of output 1791 [2024-08-22 20:34:43,283 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:34:59,124 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:35:05,934 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:35:12,554 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:35:20,197 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:35:27,431 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:35:31,767 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:35:38,725 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:36:10,309 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:36:18,852 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:36:27,065 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:36:35,408 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:36:45,974 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:36:46,233 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:36:55,269 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:36:55,535 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-22 20:37:04,769 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-08-22 20:37:30,122 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-08-22 20:37:30,124 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-08-22 20:37:30,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-08-22 20:37:30,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-08-22 20:37:30,324 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,SelfDestructingSolverStorable2 [2024-08-22 20:37:30,325 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:287) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:519) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:503) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:609) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:731) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 69 more [2024-08-22 20:37:30,330 INFO L158 Benchmark]: Toolchain (without parser) took 328017.63ms. Allocated memory was 180.4MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 107.1MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2024-08-22 20:37:30,331 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 180.4MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-22 20:37:30,331 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 180.4MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-22 20:37:30,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.85ms. Allocated memory is still 180.4MB. Free memory was 106.8MB in the beginning and 92.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-22 20:37:30,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.57ms. Allocated memory is still 180.4MB. Free memory was 92.0MB in the beginning and 90.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-22 20:37:30,332 INFO L158 Benchmark]: Boogie Preprocessor took 25.94ms. Allocated memory is still 180.4MB. Free memory was 90.0MB in the beginning and 88.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-22 20:37:30,332 INFO L158 Benchmark]: RCFGBuilder took 640.24ms. Allocated memory is still 180.4MB. Free memory was 88.5MB in the beginning and 125.0MB in the end (delta: -36.5MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2024-08-22 20:37:30,333 INFO L158 Benchmark]: TraceAbstraction took 327006.15ms. Allocated memory was 180.4MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 125.0MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2024-08-22 20:37:30,335 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 180.4MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 180.4MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.85ms. Allocated memory is still 180.4MB. Free memory was 106.8MB in the beginning and 92.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.57ms. Allocated memory is still 180.4MB. Free memory was 92.0MB in the beginning and 90.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.94ms. Allocated memory is still 180.4MB. Free memory was 90.0MB in the beginning and 88.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 640.24ms. Allocated memory is still 180.4MB. Free memory was 88.5MB in the beginning and 125.0MB in the end (delta: -36.5MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * TraceAbstraction took 327006.15ms. Allocated memory was 180.4MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 125.0MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-08-22 20:37:30,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/unroll-4.wvr.c ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/unroll-4.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-validation-atomicfix-7bc0c75-m [2024-08-22 20:37:32,769 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-22 20:37:32,857 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-08-22 20:37:32,863 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-22 20:37:32,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-22 20:37:32,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-22 20:37:32,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-22 20:37:32,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-22 20:37:32,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-22 20:37:32,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-22 20:37:32,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-22 20:37:32,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-22 20:37:32,900 INFO L153 SettingsManager]: * Use SBE=true [2024-08-22 20:37:32,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-22 20:37:32,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-22 20:37:32,900 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-22 20:37:32,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-22 20:37:32,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-22 20:37:32,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-22 20:37:32,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-22 20:37:32,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-22 20:37:32,904 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-22 20:37:32,904 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-22 20:37:32,904 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-22 20:37:32,904 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-22 20:37:32,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-22 20:37:32,905 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-22 20:37:32,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-22 20:37:32,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-22 20:37:32,906 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-22 20:37:32,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-22 20:37:32,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-22 20:37:32,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-22 20:37:32,908 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-22 20:37:32,908 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-22 20:37:32,908 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-22 20:37:32,908 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-22 20:37:32,909 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-22 20:37:32,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-22 20:37:32,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-22 20:37:32,909 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-22 20:37:32,910 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-22 20:37:32,910 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-22 20:37:32,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-22 20:37:32,910 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-22 20:37:33,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-22 20:37:33,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-22 20:37:33,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-22 20:37:33,236 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-22 20:37:33,237 INFO L274 PluginConnector]: CDTParser initialized [2024-08-22 20:37:33,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/unroll-4.wvr.c [2024-08-22 20:37:34,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-22 20:37:34,956 INFO L384 CDTParser]: Found 1 translation units. [2024-08-22 20:37:34,957 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-4.wvr.c [2024-08-22 20:37:34,967 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4d50c8ff4/1c4f9afeec904de48870109ff9bb83e4/FLAGab3ec43c5 [2024-08-22 20:37:34,983 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4d50c8ff4/1c4f9afeec904de48870109ff9bb83e4 [2024-08-22 20:37:34,986 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-22 20:37:34,987 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-22 20:37:34,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/unroll-4.wvr.yml/witness.yml [2024-08-22 20:37:35,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-22 20:37:35,082 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-22 20:37:35,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-22 20:37:35,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-22 20:37:35,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-22 20:37:35,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 08:37:34" (1/2) ... [2024-08-22 20:37:35,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6acaa4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 08:37:35, skipping insertion in model container [2024-08-22 20:37:35,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 08:37:34" (1/2) ... [2024-08-22 20:37:35,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6fca9a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 08:37:35, skipping insertion in model container [2024-08-22 20:37:35,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.08 08:37:35" (2/2) ... [2024-08-22 20:37:35,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6acaa4e0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:37:35, skipping insertion in model container [2024-08-22 20:37:35,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.08 08:37:35" (2/2) ... [2024-08-22 20:37:35,093 INFO L81 nessWitnessExtractor]: Only extracting loop invariants from correctness witness [2024-08-22 20:37:35,102 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-22 20:37:35,103 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-22 20:37:35,103 INFO L106 edCorrectnessWitness]: ghost_update [L88-L88] multithreaded = 1; [2024-08-22 20:37:35,123 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-22 20:37:35,324 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/unroll-4.wvr.c[2598,2611] [2024-08-22 20:37:35,332 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-22 20:37:35,348 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-08-22 20:37:35,411 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/unroll-4.wvr.c[2598,2611] [2024-08-22 20:37:35,420 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-22 20:37:35,441 INFO L206 MainTranslator]: Completed translation [2024-08-22 20:37:35,442 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:37:35 WrapperNode [2024-08-22 20:37:35,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-22 20:37:35,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-22 20:37:35,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-22 20:37:35,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-22 20:37:35,450 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 22.08 08:37:35" (1/1) ... [2024-08-22 20:37:35,461 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 22.08 08:37:35" (1/1) ... [2024-08-22 20:37:35,491 INFO L138 Inliner]: procedures = 25, calls = 26, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 148 [2024-08-22 20:37:35,491 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-22 20:37:35,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-22 20:37:35,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-22 20:37:35,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-22 20:37:35,502 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:37:35" (1/1) ... [2024-08-22 20:37:35,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:37:35" (1/1) ... [2024-08-22 20:37:35,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:37:35" (1/1) ... [2024-08-22 20:37:35,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:37:35" (1/1) ... [2024-08-22 20:37:35,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:37:35" (1/1) ... [2024-08-22 20:37:35,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:37:35" (1/1) ... [2024-08-22 20:37:35,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:37:35" (1/1) ... [2024-08-22 20:37:35,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:37:35" (1/1) ... [2024-08-22 20:37:35,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-22 20:37:35,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-22 20:37:35,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-22 20:37:35,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-22 20:37:35,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:37:35" (1/1) ... [2024-08-22 20:37:35,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-22 20:37:35,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 20:37:35,581 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 20:37:35,590 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 20:37:35,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-22 20:37:35,621 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-22 20:37:35,621 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-22 20:37:35,622 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-22 20:37:35,622 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-22 20:37:35,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-08-22 20:37:35,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-22 20:37:35,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-08-22 20:37:35,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-22 20:37:35,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-22 20:37:35,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-08-22 20:37:35,625 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 20:37:35,746 INFO L243 CfgBuilder]: Building ICFG [2024-08-22 20:37:35,748 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-22 20:37:36,094 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-22 20:37:36,094 INFO L292 CfgBuilder]: Performing block encoding [2024-08-22 20:37:36,361 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-22 20:37:36,361 INFO L319 CfgBuilder]: Removed 3 assume(true) statements. [2024-08-22 20:37:36,362 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 08:37:36 BoogieIcfgContainer [2024-08-22 20:37:36,362 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-22 20:37:36,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-22 20:37:36,365 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-22 20:37:36,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-22 20:37:36,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 08:37:34" (1/4) ... [2024-08-22 20:37:36,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334b7682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 08:37:36, skipping insertion in model container [2024-08-22 20:37:36,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.08 08:37:35" (2/4) ... [2024-08-22 20:37:36,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334b7682 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.08 08:37:36, skipping insertion in model container [2024-08-22 20:37:36,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 08:37:35" (3/4) ... [2024-08-22 20:37:36,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334b7682 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.08 08:37:36, skipping insertion in model container [2024-08-22 20:37:36,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 08:37:36" (4/4) ... [2024-08-22 20:37:36,371 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.c [2024-08-22 20:37:36,386 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-22 20:37:36,386 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-22 20:37:36,387 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-22 20:37:36,440 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-22 20:37:36,482 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-22 20:37:36,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-22 20:37:36,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 20:37:36,485 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 20:37:36,487 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 20:37:36,516 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-22 20:37:36,528 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-22 20:37:36,534 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;@2e66ff87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-22 20:37:36,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-22 20:37:36,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:37:36,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:37:36,641 INFO L85 PathProgramCache]: Analyzing trace with hash -2079732032, now seen corresponding path program 1 times [2024-08-22 20:37:36,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-22 20:37:36,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408372874] [2024-08-22 20:37:36,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 20:37:36,656 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:37:36,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-08-22 20:37:36,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-22 20:37:36,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-08-22 20:37:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 20:37:36,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-22 20:37:36,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 20:37:36,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-22 20:37:36,873 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-22 20:37:36,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-22 20:37:36,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408372874] [2024-08-22 20:37:36,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408372874] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-22 20:37:36,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-22 20:37:36,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-22 20:37:36,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509428103] [2024-08-22 20:37:36,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-22 20:37:36,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-22 20:37:36,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-22 20:37:36,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-22 20:37:36,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-22 20:37:36,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:37:36,911 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 20:37:36,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 20:37:36,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:37:36,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:37:36,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-08-22 20:37:37,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:37:37,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:37:37,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:37:37,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1189290374, now seen corresponding path program 1 times [2024-08-22 20:37:37,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-22 20:37:37,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749603642] [2024-08-22 20:37:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 20:37:37,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:37:37,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-08-22 20:37:37,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-22 20:37:37,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-08-22 20:37:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 20:37:37,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2024-08-22 20:37:37,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 20:37:37,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-22 20:37:37,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-22 20:37:37,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-22 20:37:37,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749603642] [2024-08-22 20:37:37,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749603642] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-22 20:37:37,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-22 20:37:37,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-22 20:37:37,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705998261] [2024-08-22 20:37:37,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-22 20:37:37,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-22 20:37:37,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-22 20:37:37,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-22 20:37:37,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-22 20:37:37,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:37:37,345 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 20:37:37,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 20:37:37,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:37:37,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:37:37,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:37:37,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:37:37,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-08-22 20:37:37,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:37:37,631 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:37:37,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:37:37,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1122667042, now seen corresponding path program 1 times [2024-08-22 20:37:37,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-22 20:37:37,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015603611] [2024-08-22 20:37:37,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 20:37:37,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:37:37,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-08-22 20:37:37,635 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-22 20:37:37,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-08-22 20:37:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 20:37:37,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-22 20:37:37,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 20:37:37,929 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-22 20:37:37,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 20:37:38,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-22 20:37:38,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-22 20:37:38,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015603611] [2024-08-22 20:37:38,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015603611] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 20:37:38,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-08-22 20:37:38,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-08-22 20:37:38,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022287453] [2024-08-22 20:37:38,254 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-08-22 20:37:38,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-08-22 20:37:38,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-22 20:37:38,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-08-22 20:37:38,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-08-22 20:37:38,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:37:38,256 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 20:37:38,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 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) [2024-08-22 20:37:38,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:37:38,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:37:38,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:37:38,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:37:38,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:37:38,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-22 20:37:38,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-08-22 20:37:38,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:37:38,945 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:37:38,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:37:38,946 INFO L85 PathProgramCache]: Analyzing trace with hash -306543358, now seen corresponding path program 2 times [2024-08-22 20:37:38,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-22 20:37:38,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852958106] [2024-08-22 20:37:38,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-22 20:37:38,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:37:38,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-08-22 20:37:38,950 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-22 20:37:38,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-08-22 20:37:39,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-22 20:37:39,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-22 20:37:39,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2024-08-22 20:37:39,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 20:37:39,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-22 20:37:39,443 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 7 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 76 [2024-08-22 20:37:39,621 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-22 20:37:39,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 20:37:42,869 INFO L349 Elim1Store]: treesize reduction 20, result has 92.8 percent of original size [2024-08-22 20:37:42,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 14 new quantified variables, introduced 28 case distinctions, treesize of input 67 treesize of output 308 [2024-08-22 20:37:48,378 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-22 20:37:48,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-22 20:37:48,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852958106] [2024-08-22 20:37:48,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852958106] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 20:37:48,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-08-22 20:37:48,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-08-22 20:37:48,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070639392] [2024-08-22 20:37:48,384 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-08-22 20:37:48,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-22 20:37:48,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-22 20:37:48,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-22 20:37:48,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=126, Unknown=1, NotChecked=0, Total=156 [2024-08-22 20:37:48,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:37:48,386 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 20:37:48,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 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 20:37:48,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:37:48,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:37:48,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-22 20:37:48,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:37:49,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:37:49,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:37:49,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-22 20:37:49,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-22 20:37:49,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-08-22 20:37:49,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:37:49,339 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:37:49,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:37:49,340 INFO L85 PathProgramCache]: Analyzing trace with hash 611796962, now seen corresponding path program 3 times [2024-08-22 20:37:49,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-22 20:37:49,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315230721] [2024-08-22 20:37:49,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-22 20:37:49,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:37:49,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-08-22 20:37:49,343 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-22 20:37:49,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-08-22 20:37:49,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-08-22 20:37:49,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-22 20:37:49,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 18 conjunts are in the unsatisfiable core [2024-08-22 20:37:49,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 20:37:49,733 INFO L173 IndexEqualityManager]: detected equality via solver [2024-08-22 20:37:49,770 INFO L349 Elim1Store]: treesize reduction 108, result has 12.9 percent of original size [2024-08-22 20:37:49,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 59 treesize of output 48 [2024-08-22 20:37:49,800 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-22 20:37:49,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 20:37:50,425 INFO L349 Elim1Store]: treesize reduction 10, result has 93.6 percent of original size [2024-08-22 20:37:50,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 76 treesize of output 190 [2024-08-22 20:38:05,579 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-22 20:38:05,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-22 20:38:05,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315230721] [2024-08-22 20:38:05,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315230721] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 20:38:05,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-08-22 20:38:05,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-08-22 20:38:05,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415794340] [2024-08-22 20:38:05,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-08-22 20:38:05,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-08-22 20:38:05,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-22 20:38:05,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-08-22 20:38:05,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-08-22 20:38:05,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:38:05,585 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 20:38:05,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 13 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-22 20:38:05,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:38:05,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:38:05,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-22 20:38:05,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-22 20:38:05,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:38:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:38:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:38:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-22 20:38:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-22 20:38:06,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 20:38:06,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-08-22 20:38:06,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:38:06,640 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:38:06,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:38:06,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1543083428, now seen corresponding path program 4 times [2024-08-22 20:38:06,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-22 20:38:06,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68599171] [2024-08-22 20:38:06,641 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-22 20:38:06,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:38:06,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-08-22 20:38:06,643 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-22 20:38:06,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-08-22 20:38:06,718 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-22 20:38:06,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-22 20:38:06,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjunts are in the unsatisfiable core [2024-08-22 20:38:06,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 20:38:06,835 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-08-22 20:38:06,835 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 20:38:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-08-22 20:38:07,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-22 20:38:07,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68599171] [2024-08-22 20:38:07,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68599171] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 20:38:07,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-08-22 20:38:07,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2024-08-22 20:38:07,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551390348] [2024-08-22 20:38:07,081 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-08-22 20:38:07,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-08-22 20:38:07,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-22 20:38:07,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-08-22 20:38:07,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-08-22 20:38:07,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:38:07,083 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 20:38:07,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 17 states have internal predecessors, (35), 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 20:38:07,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:38:07,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:38:07,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-22 20:38:07,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-22 20:38:07,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-22 20:38:07,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:38:07,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:38:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:38:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-22 20:38:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-22 20:38:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 20:38:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-22 20:38:07,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-08-22 20:38:07,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:38:07,884 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:38:07,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:38:07,884 INFO L85 PathProgramCache]: Analyzing trace with hash 529347107, now seen corresponding path program 5 times [2024-08-22 20:38:07,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-22 20:38:07,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162263193] [2024-08-22 20:38:07,885 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-22 20:38:07,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:38:07,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-08-22 20:38:07,886 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-22 20:38:07,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-08-22 20:38:07,989 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-08-22 20:38:07,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-22 20:38:07,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 13 conjunts are in the unsatisfiable core [2024-08-22 20:38:07,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 20:38:08,125 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-22 20:38:08,125 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 20:38:08,563 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-22 20:38:08,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-22 20:38:08,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162263193] [2024-08-22 20:38:08,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162263193] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 20:38:08,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-08-22 20:38:08,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2024-08-22 20:38:08,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124710585] [2024-08-22 20:38:08,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-08-22 20:38:08,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-08-22 20:38:08,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-22 20:38:08,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-08-22 20:38:08,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-08-22 20:38:08,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:38:08,566 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 20:38:08,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.75) internal successors, (35), 20 states have internal predecessors, (35), 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 20:38:08,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:38:08,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:38:08,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-22 20:38:08,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-22 20:38:08,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-22 20:38:08,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-22 20:38:08,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:38:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:38:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:38:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-22 20:38:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-22 20:38:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 20:38:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-22 20:38:10,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-08-22 20:38:10,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-08-22 20:38:10,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:38:10,807 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:38:10,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:38:10,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1542272888, now seen corresponding path program 6 times [2024-08-22 20:38:10,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-22 20:38:10,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136318340] [2024-08-22 20:38:10,807 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-22 20:38:10,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:38:10,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-08-22 20:38:10,811 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-22 20:38:10,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-08-22 20:38:10,950 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-08-22 20:38:10,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-22 20:38:10,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2024-08-22 20:38:10,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 20:38:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-22 20:38:11,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 20:38:16,568 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 1 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-22 20:38:16,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-22 20:38:16,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136318340] [2024-08-22 20:38:16,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136318340] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 20:38:16,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-08-22 20:38:16,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-08-22 20:38:16,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892863859] [2024-08-22 20:38:16,569 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-08-22 20:38:16,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-22 20:38:16,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-22 20:38:16,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-22 20:38:16,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=255, Unknown=2, NotChecked=0, Total=306 [2024-08-22 20:38:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:38:16,571 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 20:38:16,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 18 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-22 20:38:16,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:38:16,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:38:16,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-22 20:38:16,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-22 20:38:16,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-22 20:38:16,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-22 20:38:16,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-08-22 20:38:16,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:38:23,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-08-22 20:38:25,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-08-22 20:38:27,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-08-22 20:38:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:38:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:38:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-22 20:38:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-22 20:38:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 20:38:28,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-22 20:38:28,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-08-22 20:38:28,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-22 20:38:28,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-08-22 20:38:28,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:38:28,209 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:38:28,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:38:28,210 INFO L85 PathProgramCache]: Analyzing trace with hash 86757859, now seen corresponding path program 7 times [2024-08-22 20:38:28,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-22 20:38:28,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563653830] [2024-08-22 20:38:28,210 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-08-22 20:38:28,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:38:28,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-08-22 20:38:28,213 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-22 20:38:28,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-08-22 20:38:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 20:38:28,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 14 conjunts are in the unsatisfiable core [2024-08-22 20:38:28,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 20:38:28,538 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 72 proven. 39 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-08-22 20:38:28,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 20:38:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 72 proven. 39 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-08-22 20:38:30,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-08-22 20:38:30,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563653830] [2024-08-22 20:38:30,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563653830] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 20:38:30,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-08-22 20:38:30,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2024-08-22 20:38:30,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992840206] [2024-08-22 20:38:30,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-08-22 20:38:30,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-08-22 20:38:30,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-08-22 20:38:30,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-08-22 20:38:30,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2024-08-22 20:38:30,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:38:30,528 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 20:38:30,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 28 states have internal predecessors, (45), 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 20:38:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:38:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:38:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-22 20:38:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-22 20:38:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-22 20:38:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-22 20:38:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-08-22 20:38:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-22 20:38:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 20:38:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-22 20:38:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 20:38:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-22 20:38:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-22 20:38:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 20:38:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-22 20:38:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-08-22 20:38:35,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-22 20:38:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-08-22 20:38:35,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-08-22 20:38:35,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:38:35,995 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 20:38:35,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 20:38:35,996 INFO L85 PathProgramCache]: Analyzing trace with hash 529794915, now seen corresponding path program 8 times [2024-08-22 20:38:35,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-22 20:38:35,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259821317] [2024-08-22 20:38:35,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-22 20:38:35,996 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-22 20:38:35,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-08-22 20:38:35,997 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-22 20:38:35,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-08-22 20:38:36,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-22 20:38:36,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-22 20:38:36,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 14 conjunts are in the unsatisfiable core [2024-08-22 20:38:36,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 20:38:37,868 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-22 20:38:37,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 127 treesize of output 280 [2024-08-22 20:38:48,516 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-22 20:38:48,516 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 20:39:05,426 WARN L293 SmtUtils]: Spent 10.94s on a formula simplification. DAG size of input: 519 DAG size of output: 495 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-08-22 20:39:05,426 INFO L349 Elim1Store]: treesize reduction 40, result has 96.3 percent of original size [2024-08-22 20:39:05,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 30 new quantified variables, introduced 120 case distinctions, treesize of input 131 treesize of output 1152 Killed by 15