./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c328ca6a6071aea6db12d1e311bd2e5e22fce6c700c884e61df52925e139f834 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 14:08:50,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 14:08:50,130 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-06 14:08:50,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 14:08:50,138 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 14:08:50,184 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 14:08:50,186 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 14:08:50,187 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 14:08:50,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 14:08:50,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 14:08:50,195 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 14:08:50,196 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 14:08:50,197 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 14:08:50,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 14:08:50,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 14:08:50,200 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 14:08:50,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 14:08:50,201 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 14:08:50,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 14:08:50,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 14:08:50,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 14:08:50,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 14:08:50,203 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 14:08:50,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 14:08:50,204 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 14:08:50,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 14:08:50,206 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 14:08:50,206 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 14:08:50,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 14:08:50,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 14:08:50,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 14:08:50,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 14:08:50,210 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 14:08:50,210 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-06 14:08:50,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 14:08:50,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-06 14:08:50,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-06 14:08:50,211 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 14:08:50,212 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-06 14:08:50,212 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-06 14:08:50,212 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c328ca6a6071aea6db12d1e311bd2e5e22fce6c700c884e61df52925e139f834 [2023-11-06 14:08:50,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 14:08:50,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 14:08:50,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 14:08:50,605 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 14:08:50,606 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 14:08:50,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2023-11-06 14:08:53,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 14:08:54,157 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 14:08:54,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2023-11-06 14:08:54,167 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/data/ce59f4aee/96fa51f9a6e841db93be0fbbe7460559/FLAG235f305cd [2023-11-06 14:08:54,183 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/data/ce59f4aee/96fa51f9a6e841db93be0fbbe7460559 [2023-11-06 14:08:54,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 14:08:54,187 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 14:08:54,189 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 14:08:54,189 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 14:08:54,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 14:08:54,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,198 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9422669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54, skipping insertion in model container [2023-11-06 14:08:54,198 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,228 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 14:08:54,420 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c[2835,2848] [2023-11-06 14:08:54,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 14:08:54,445 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 14:08:54,472 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c[2835,2848] [2023-11-06 14:08:54,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 14:08:54,487 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 14:08:54,487 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 14:08:54,495 INFO L206 MainTranslator]: Completed translation [2023-11-06 14:08:54,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54 WrapperNode [2023-11-06 14:08:54,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 14:08:54,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 14:08:54,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 14:08:54,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 14:08:54,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,519 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,564 INFO L138 Inliner]: procedures = 25, calls = 58, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 288 [2023-11-06 14:08:54,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 14:08:54,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 14:08:54,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 14:08:54,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 14:08:54,581 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,601 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,613 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,619 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 14:08:54,620 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 14:08:54,620 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 14:08:54,620 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 14:08:54,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54" (1/1) ... [2023-11-06 14:08:54,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 14:08:54,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:54,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 14:08:54,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 14:08:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 14:08:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 14:08:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 14:08:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 14:08:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 14:08:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 14:08:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 14:08:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 14:08:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 14:08:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 14:08:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 14:08:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 14:08:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 14:08:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 14:08:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 14:08:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 14:08:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 14:08:54,734 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 14:08:54,872 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 14:08:54,874 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 14:08:55,512 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 14:08:55,893 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 14:08:55,893 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-06 14:08:55,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:08:55 BoogieIcfgContainer [2023-11-06 14:08:55,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 14:08:55,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 14:08:55,900 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 14:08:55,904 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 14:08:55,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:08:54" (1/3) ... [2023-11-06 14:08:55,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314918fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:08:55, skipping insertion in model container [2023-11-06 14:08:55,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:54" (2/3) ... [2023-11-06 14:08:55,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314918fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:08:55, skipping insertion in model container [2023-11-06 14:08:55,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:08:55" (3/3) ... [2023-11-06 14:08:55,908 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2023-11-06 14:08:55,918 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 14:08:55,929 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 14:08:55,929 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 14:08:55,929 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 14:08:56,018 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 14:08:56,076 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 14:08:56,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-06 14:08:56,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:56,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-06 14:08:56,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-06 14:08:56,130 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-06 14:08:56,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-06 14:08:56,152 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6389fe8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 14:08:56,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-06 14:08:56,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 14:08:56,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:56,617 INFO L85 PathProgramCache]: Analyzing trace with hash -466045154, now seen corresponding path program 1 times [2023-11-06 14:08:56,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:56,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061656971] [2023-11-06 14:08:56,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:56,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:57,029 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-06 14:08:57,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:57,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061656971] [2023-11-06 14:08:57,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061656971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:57,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:57,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 14:08:57,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887477527] [2023-11-06 14:08:57,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:57,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 14:08:57,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:57,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 14:08:57,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 14:08:57,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:57,079 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:57,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 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) [2023-11-06 14:08:57,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:57,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:57,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 14:08:57,143 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 14:08:57,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:57,144 INFO L85 PathProgramCache]: Analyzing trace with hash 174170996, now seen corresponding path program 1 times [2023-11-06 14:08:57,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:57,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605826608] [2023-11-06 14:08:57,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:57,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:57,912 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-06 14:08:57,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:57,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605826608] [2023-11-06 14:08:57,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605826608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:57,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:57,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 14:08:57,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573809905] [2023-11-06 14:08:57,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:57,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 14:08:57,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:57,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 14:08:57,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 14:08:57,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:57,922 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:57,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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) [2023-11-06 14:08:57,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:57,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:58,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:58,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:58,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 14:08:58,251 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 14:08:58,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1398374619, now seen corresponding path program 1 times [2023-11-06 14:08:58,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:58,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29367300] [2023-11-06 14:08:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:58,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:58,933 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-06 14:08:58,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:58,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29367300] [2023-11-06 14:08:58,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29367300] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 14:08:58,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516172555] [2023-11-06 14:08:58,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:58,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:08:58,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:58,972 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 14:08:58,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 14:08:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:59,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 14:08:59,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:59,793 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-06 14:08:59,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 14:09:00,318 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-06 14:09:00,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516172555] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 14:09:00,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 14:09:00,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 25 [2023-11-06 14:09:00,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516426568] [2023-11-06 14:09:00,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 14:09:00,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-06 14:09:00,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:09:00,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-06 14:09:00,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2023-11-06 14:09:00,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:00,325 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:09:00,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.68) internal successors, (267), 25 states have internal predecessors, (267), 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) [2023-11-06 14:09:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:09:00,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:01,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:01,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:09:01,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 14:09:01,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-06 14:09:01,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:09:01,231 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 14:09:01,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:09:01,231 INFO L85 PathProgramCache]: Analyzing trace with hash 155959766, now seen corresponding path program 2 times [2023-11-06 14:09:01,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:09:01,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118482510] [2023-11-06 14:09:01,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:09:01,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:09:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:09:02,114 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 23 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 14:09:02,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:09:02,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118482510] [2023-11-06 14:09:02,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118482510] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 14:09:02,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117662981] [2023-11-06 14:09:02,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 14:09:02,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:09:02,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:09:02,124 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 14:09:02,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 14:09:02,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 14:09:02,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 14:09:02,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 14:09:02,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:09:03,281 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-06 14:09:03,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 14:09:03,803 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-06 14:09:03,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117662981] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 14:09:03,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 14:09:03,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 37 [2023-11-06 14:09:03,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683775079] [2023-11-06 14:09:03,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 14:09:03,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-11-06 14:09:03,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:09:03,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-11-06 14:09:03,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1223, Unknown=0, NotChecked=0, Total=1332 [2023-11-06 14:09:03,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:03,810 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:09:03,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 10.0) internal successors, (370), 37 states have internal predecessors, (370), 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) [2023-11-06 14:09:03,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:03,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:09:03,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-06 14:09:03,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:08,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:08,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:09:08,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 14:09:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-11-06 14:09:08,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 14:09:08,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:09:08,565 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 14:09:08,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:09:08,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1816252483, now seen corresponding path program 3 times [2023-11-06 14:09:08,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:09:08,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182896853] [2023-11-06 14:09:08,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:09:08,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:09:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:09:09,596 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 61 proven. 47 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-06 14:09:09,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:09:09,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182896853] [2023-11-06 14:09:09,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182896853] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 14:09:09,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235881869] [2023-11-06 14:09:09,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 14:09:09,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:09:09,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:09:09,599 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 14:09:09,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c850c94a-4d70-4985-b5b8-24e2ae196ef9/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 14:09:10,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-06 14:09:10,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 14:09:10,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-06 14:09:10,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:09:11,129 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 22 proven. 60 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-06 14:09:11,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 14:09:12,236 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 25 proven. 57 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-06 14:09:12,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235881869] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 14:09:12,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 14:09:12,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 54 [2023-11-06 14:09:12,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68772205] [2023-11-06 14:09:12,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 14:09:12,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2023-11-06 14:09:12,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:09:12,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2023-11-06 14:09:12,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=2642, Unknown=0, NotChecked=0, Total=2862 [2023-11-06 14:09:12,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:12,246 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:09:12,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 8.703703703703704) internal successors, (470), 54 states have internal predecessors, (470), 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) [2023-11-06 14:09:12,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:12,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:09:12,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-06 14:09:12,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2023-11-06 14:09:12,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.