./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/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_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/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 ! overflow) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 726fce4da80b267da781dea82372ef1c43891e7d5d6ac2b3894c611bc25a242b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 14:08:17,795 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 14:08:17,857 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2023-11-06 14:08:17,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 14:08:17,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 14:08:17,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 14:08:17,888 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 14:08:17,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 14:08:17,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 14:08:17,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 14:08:17,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 14:08:17,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 14:08:17,893 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 14:08:17,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 14:08:17,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 14:08:17,895 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 14:08:17,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 14:08:17,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 14:08:17,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 14:08:17,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 14:08:17,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 14:08:17,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 14:08:17,899 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 14:08:17,899 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 14:08:17,900 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 14:08:17,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 14:08:17,900 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 14:08:17,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 14:08:17,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 14:08:17,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 14:08:17,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 14:08:17,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 14:08:17,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 14:08:17,904 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 14:08:17,904 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 14:08:17,904 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-06 14:08:17,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 14:08:17,905 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-06 14:08:17,905 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-06 14:08:17,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-06 14:08:17,905 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 14:08:17,906 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-06 14:08:17,906 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-06 14:08:17,906 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_75a420c8-8822-4d76-a866-99c8b3e37ecb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 726fce4da80b267da781dea82372ef1c43891e7d5d6ac2b3894c611bc25a242b [2023-11-06 14:08:18,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 14:08:18,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 14:08:18,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 14:08:18,235 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 14:08:18,236 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 14:08:18,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/../../sv-benchmarks/c/pthread-lit/sssc12_variant.i [2023-11-06 14:08:21,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 14:08:21,743 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 14:08:21,743 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/sv-benchmarks/c/pthread-lit/sssc12_variant.i [2023-11-06 14:08:21,776 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/data/faad061f5/d9faf1aec2b44d76b57ad02ddf1db543/FLAG652bd6bbd [2023-11-06 14:08:21,792 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/data/faad061f5/d9faf1aec2b44d76b57ad02ddf1db543 [2023-11-06 14:08:21,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 14:08:21,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 14:08:21,807 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 14:08:21,807 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 14:08:21,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 14:08:21,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:08:21" (1/1) ... [2023-11-06 14:08:21,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e6604c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:21, skipping insertion in model container [2023-11-06 14:08:21,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:08:21" (1/1) ... [2023-11-06 14:08:21,885 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 14:08:22,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 14:08:22,530 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 14:08:22,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 14:08:22,699 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 14:08:22,700 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 14:08:22,709 INFO L206 MainTranslator]: Completed translation [2023-11-06 14:08:22,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22 WrapperNode [2023-11-06 14:08:22,710 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 14:08:22,711 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 14:08:22,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 14:08:22,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 14:08:22,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,741 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,774 INFO L138 Inliner]: procedures = 275, calls = 26, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 96 [2023-11-06 14:08:22,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 14:08:22,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 14:08:22,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 14:08:22,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 14:08:22,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,799 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 14:08:22,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 14:08:22,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 14:08:22,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 14:08:22,814 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 14:08:22,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:22,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 14:08:22,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 14:08:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 14:08:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2023-11-06 14:08:22,892 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2023-11-06 14:08:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 14:08:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 14:08:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 14:08:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 14:08:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 14:08:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 14:08:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 14:08:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 14:08:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 14:08:22,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 14:08:22,896 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 14:08:23,038 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 14:08:23,040 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 14:08:23,261 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 14:08:23,309 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 14:08:23,310 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 14:08:23,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:08:23 BoogieIcfgContainer [2023-11-06 14:08:23,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 14:08:23,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 14:08:23,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 14:08:23,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 14:08:23,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:08:21" (1/3) ... [2023-11-06 14:08:23,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8ce8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:08:23, skipping insertion in model container [2023-11-06 14:08:23,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22" (2/3) ... [2023-11-06 14:08:23,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8ce8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:08:23, skipping insertion in model container [2023-11-06 14:08:23,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:08:23" (3/3) ... [2023-11-06 14:08:23,323 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12_variant.i [2023-11-06 14:08:23,333 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 14:08:23,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 14:08:23,344 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 14:08:23,344 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 14:08:23,414 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 14:08:23,461 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 14:08:23,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-06 14:08:23,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:23,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-06 14:08:23,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-06 14:08:23,550 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-06 14:08:23,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-06 14:08:23,574 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;@3ee51793, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 14:08:23,574 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 14:08:23,771 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-06 14:08:23,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:23,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1751827863, now seen corresponding path program 1 times [2023-11-06 14:08:23,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:23,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429517270] [2023-11-06 14:08:23,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:23,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:24,114 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 14:08:24,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:24,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429517270] [2023-11-06 14:08:24,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429517270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:24,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:24,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 14:08:24,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133437464] [2023-11-06 14:08:24,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:24,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 14:08:24,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:24,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 14:08:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 14:08:24,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:24,159 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:24,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 14:08:24,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:24,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 14:08:24,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-06 14:08:24,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:24,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1606526341, now seen corresponding path program 1 times [2023-11-06 14:08:24,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:24,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415012296] [2023-11-06 14:08:24,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:24,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:24,477 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:24,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:24,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415012296] [2023-11-06 14:08:24,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415012296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:24,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:24,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 14:08:24,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783163054] [2023-11-06 14:08:24,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:24,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 14:08:24,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:24,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 14:08:24,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 14:08:24,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:24,488 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:24,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 14:08:24,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:24,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:24,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:24,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 14:08:24,681 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-06 14:08:24,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:24,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1497718331, now seen corresponding path program 1 times [2023-11-06 14:08:24,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:24,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20765493] [2023-11-06 14:08:24,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:24,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:25,087 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:25,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:25,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20765493] [2023-11-06 14:08:25,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20765493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:25,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:25,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 14:08:25,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389474419] [2023-11-06 14:08:25,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:25,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 14:08:25,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:25,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 14:08:25,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 14:08:25,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,093 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:25,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 14:08:25,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:25,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:25,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:25,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 14:08:25,268 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-06 14:08:25,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:25,269 INFO L85 PathProgramCache]: Analyzing trace with hash -614402889, now seen corresponding path program 1 times [2023-11-06 14:08:25,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:25,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004313972] [2023-11-06 14:08:25,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:25,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:25,454 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:25,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:25,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004313972] [2023-11-06 14:08:25,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004313972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:25,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:25,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 14:08:25,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921190028] [2023-11-06 14:08:25,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:25,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 14:08:25,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:25,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 14:08:25,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 14:08:25,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,467 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:25,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 14:08:25,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:25,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:25,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:25,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:25,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 14:08:25,643 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-06 14:08:25,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash 10207765, now seen corresponding path program 1 times [2023-11-06 14:08:25,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:25,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942978659] [2023-11-06 14:08:25,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:25,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 14:08:25,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 14:08:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 14:08:25,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 14:08:25,822 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 14:08:25,823 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-11-06 14:08:25,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 14:08:25,855 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 14:08:25,857 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/2) [2023-11-06 14:08:25,860 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 14:08:25,860 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 14:08:25,894 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 14:08:25,900 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 14:08:25,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-06 14:08:25,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:25,931 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-06 14:08:25,935 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-06 14:08:25,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread2of2ForFork0 ======== [2023-11-06 14:08:25,936 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;@3ee51793, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 14:08:25,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-06 14:08:25,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2023-11-06 14:08:26,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 14:08:26,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:26,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1162408817, now seen corresponding path program 1 times [2023-11-06 14:08:26,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:26,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024720391] [2023-11-06 14:08:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:26,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:26,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 14:08:26,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:26,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024720391] [2023-11-06 14:08:26,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024720391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:26,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:26,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 14:08:26,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479182320] [2023-11-06 14:08:26,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:26,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 14:08:26,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:26,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 14:08:26,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 14:08:26,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,191 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:26,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 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 14:08:26,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 14:08:26,227 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 14:08:26,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:26,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1290407727, now seen corresponding path program 1 times [2023-11-06 14:08:26,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:26,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982022362] [2023-11-06 14:08:26,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:26,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:26,344 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:26,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:26,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982022362] [2023-11-06 14:08:26,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982022362] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:26,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:26,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 14:08:26,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583229274] [2023-11-06 14:08:26,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:26,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 14:08:26,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:26,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 14:08:26,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 14:08:26,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,352 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:26,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 14:08:26,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:26,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 14:08:26,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 14:08:26,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:26,501 INFO L85 PathProgramCache]: Analyzing trace with hash 99826853, now seen corresponding path program 1 times [2023-11-06 14:08:26,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:26,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550702252] [2023-11-06 14:08:26,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:26,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:26,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:26,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550702252] [2023-11-06 14:08:26,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550702252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:26,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:26,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 14:08:26,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126909955] [2023-11-06 14:08:26,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:26,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 14:08:26,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:26,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 14:08:26,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 14:08:26,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,769 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:26,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 14:08:26,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:26,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:26,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:26,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 14:08:26,976 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 14:08:26,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:26,977 INFO L85 PathProgramCache]: Analyzing trace with hash 251806977, now seen corresponding path program 1 times [2023-11-06 14:08:26,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:26,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268029932] [2023-11-06 14:08:26,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:26,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:27,112 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:27,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:27,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268029932] [2023-11-06 14:08:27,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268029932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:27,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:27,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 14:08:27,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904571819] [2023-11-06 14:08:27,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:27,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 14:08:27,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:27,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 14:08:27,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 14:08:27,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:27,115 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:27,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 14:08:27,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:27,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:27,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:27,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:27,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:27,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:27,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:27,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:27,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 14:08:27,245 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 14:08:27,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:27,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1647277505, now seen corresponding path program 1 times [2023-11-06 14:08:27,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:27,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580843076] [2023-11-06 14:08:27,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:27,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:27,470 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:27,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:27,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580843076] [2023-11-06 14:08:27,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580843076] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 14:08:27,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957218593] [2023-11-06 14:08:27,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:27,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:08:27,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:27,478 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 14:08:27,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 14:08:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:27,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 14:08:27,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:27,770 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:27,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 14:08:27,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957218593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:27,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 14:08:27,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-11-06 14:08:27,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096373007] [2023-11-06 14:08:27,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:27,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 14:08:27,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:27,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 14:08:27,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-06 14:08:27,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:27,774 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:27,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 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 14:08:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:27,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:27,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:27,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:27,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:27,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:27,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:27,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:27,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:28,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:08:28,106 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 14:08:28,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:28,107 INFO L85 PathProgramCache]: Analyzing trace with hash 474005477, now seen corresponding path program 1 times [2023-11-06 14:08:28,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:28,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147097687] [2023-11-06 14:08:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:28,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:28,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:28,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:28,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147097687] [2023-11-06 14:08:28,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147097687] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 14:08:28,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086490184] [2023-11-06 14:08:28,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:28,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:08:28,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:28,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 14:08:28,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 14:08:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:28,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 14:08:28,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:28,502 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:28,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 14:08:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:28,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086490184] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 14:08:28,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 14:08:28,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-11-06 14:08:28,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225866741] [2023-11-06 14:08:28,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 14:08:28,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 14:08:28,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:28,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 14:08:28,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-06 14:08:28,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:28,647 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:28,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 23.0) internal successors, (184), 9 states have internal predecessors, (184), 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 14:08:28,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:28,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:28,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:28,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:28,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:28,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:28,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:28,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:28,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:28,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:28,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:28,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:28,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:29,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:08:29,105 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 14:08:29,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:29,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1129736749, now seen corresponding path program 1 times [2023-11-06 14:08:29,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:29,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732071498] [2023-11-06 14:08:29,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:29,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:29,264 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:29,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:29,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732071498] [2023-11-06 14:08:29,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732071498] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 14:08:29,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96989928] [2023-11-06 14:08:29,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:29,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:08:29,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:29,266 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 14:08:29,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 14:08:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:29,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 14:08:29,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:29,499 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:29,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 14:08:29,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96989928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:29,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 14:08:29,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-06 14:08:29,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833508697] [2023-11-06 14:08:29,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:29,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 14:08:29,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:29,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 14:08:29,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-06 14:08:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:29,503 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:29,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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 14:08:29,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:29,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:29,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:29,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:29,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:29,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:29,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:29,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:29,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:29,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:29,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:29,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:29,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:29,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:29,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:29,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:08:29,815 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 14:08:29,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:29,816 INFO L85 PathProgramCache]: Analyzing trace with hash 303687657, now seen corresponding path program 1 times [2023-11-06 14:08:29,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:29,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109343874] [2023-11-06 14:08:29,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:29,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:29,963 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:29,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:29,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109343874] [2023-11-06 14:08:29,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109343874] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 14:08:29,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475201215] [2023-11-06 14:08:29,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:29,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:08:29,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:29,965 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 14:08:29,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 14:08:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:30,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 14:08:30,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:30,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 14:08:30,417 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:30,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475201215] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 14:08:30,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 14:08:30,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-06 14:08:30,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979126327] [2023-11-06 14:08:30,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 14:08:30,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 14:08:30,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:30,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 14:08:30,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-06 14:08:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:30,423 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:30,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 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 14:08:30,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:30,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:30,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:30,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:30,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:30,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:30,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:30,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:30,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:30,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:30,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:08:30,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:30,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:08:30,839 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 14:08:30,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:30,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1203365269, now seen corresponding path program 1 times [2023-11-06 14:08:30,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:30,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896827684] [2023-11-06 14:08:30,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:30,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:31,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:31,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896827684] [2023-11-06 14:08:31,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896827684] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 14:08:31,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714738714] [2023-11-06 14:08:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:31,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:08:31,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:31,080 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 14:08:31,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 14:08:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:31,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 14:08:31,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:31,413 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:31,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 14:08:31,655 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:31,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714738714] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 14:08:31,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 14:08:31,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2023-11-06 14:08:31,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593251170] [2023-11-06 14:08:31,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 14:08:31,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 14:08:31,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:31,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 14:08:31,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-11-06 14:08:31,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:31,660 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:31,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 21.933333333333334) internal successors, (329), 16 states have internal predecessors, (329), 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 14:08:31,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:31,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:31,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:31,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:31,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:31,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:31,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:31,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:08:31,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:32,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:32,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:32,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:32,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:32,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:32,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:32,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:32,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:08:32,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 14:08:32,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:32,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:08:32,329 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 14:08:32,329 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:32,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1350381706, now seen corresponding path program 1 times [2023-11-06 14:08:32,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:32,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971000741] [2023-11-06 14:08:32,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:32,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 14:08:32,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:32,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971000741] [2023-11-06 14:08:32,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971000741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:32,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:32,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 14:08:32,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174248796] [2023-11-06 14:08:32,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:32,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 14:08:32,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:32,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 14:08:32,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 14:08:32,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:32,431 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:32,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 39.333333333333336) internal successors, (118), 4 states have internal predecessors, (118), 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 14:08:32,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:08:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-06 14:08:32,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:32,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 14:08:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 14:08:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:32,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 14:08:32,612 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 14:08:32,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:32,613 INFO L85 PathProgramCache]: Analyzing trace with hash 103867744, now seen corresponding path program 1 times [2023-11-06 14:08:32,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:32,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280750124] [2023-11-06 14:08:32,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:32,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 14:08:32,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:32,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280750124] [2023-11-06 14:08:32,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280750124] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 14:08:32,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578074114] [2023-11-06 14:08:32,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:32,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 14:08:32,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:32,883 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 14:08:32,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a420c8-8822-4d76-a866-99c8b3e37ecb/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 14:08:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:33,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 14:08:33,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:33,288 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:33,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 14:08:33,527 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:33,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578074114] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 14:08:33,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 14:08:33,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-11-06 14:08:33,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630735766] [2023-11-06 14:08:33,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 14:08:33,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-06 14:08:33,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:33,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-06 14:08:33,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-06 14:08:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:33,533 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:33,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 27.285714285714285) internal successors, (382), 15 states have internal predecessors, (382), 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 14:08:33,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:33,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:33,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-06 14:08:33,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:33,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:33,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-06 14:08:33,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:33,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-06 14:08:33,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-06 14:08:33,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-06 14:08:33,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.