./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S --witnessprinter.witness.filename witness --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 60539e5483ee028af31550fcc6bdc40a30b35263f2407e34b5392a698998aa9c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:08:51,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:08:51,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2023-11-24 22:08:51,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:08:51,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:08:51,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:08:51,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:08:51,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:08:51,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:08:51,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:08:51,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:08:51,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:08:51,379 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:08:51,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:08:51,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:08:51,382 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:08:51,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:08:51,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:08:51,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:08:51,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:08:51,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:08:51,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:08:51,386 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:08:51,387 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:08:51,388 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:08:51,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:08:51,389 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:08:51,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:08:51,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:08:51,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:08:51,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:08:51,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:08:51,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:08:51,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:08:51,393 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:08:51,393 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:08:51,393 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-24 22:08:51,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:08:51,394 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:08:51,394 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-24 22:08:51,394 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 22:08:51,395 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:08:51,395 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 22:08:51,395 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 22:08:51,396 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_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60539e5483ee028af31550fcc6bdc40a30b35263f2407e34b5392a698998aa9c [2023-11-24 22:08:51,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:08:51,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:08:51,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:08:51,748 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:08:51,749 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:08:51,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/../../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c [2023-11-24 22:08:54,847 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:08:55,151 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:08:55,152 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c [2023-11-24 22:08:55,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/data/ef7c45930/5e38e431223e499e9d54bf85859de8b0/FLAG9ee769944 [2023-11-24 22:08:55,184 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/data/ef7c45930/5e38e431223e499e9d54bf85859de8b0 [2023-11-24 22:08:55,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:08:55,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:08:55,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:08:55,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:08:55,202 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:08:55,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,204 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd167bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55, skipping insertion in model container [2023-11-24 22:08:55,204 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,248 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:08:55,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:08:55,528 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:08:55,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:08:55,588 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:08:55,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55 WrapperNode [2023-11-24 22:08:55,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:08:55,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:08:55,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:08:55,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:08:55,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,662 INFO L138 Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 342 [2023-11-24 22:08:55,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:08:55,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:08:55,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:08:55,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:08:55,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,719 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,725 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,731 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:08:55,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:08:55,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:08:55,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:08:55,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55" (1/1) ... [2023-11-24 22:08:55,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:08:55,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:55,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 22:08:55,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 22:08:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:08:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:08:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:08:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:08:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 22:08:55,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 22:08:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 22:08:55,820 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 22:08:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-24 22:08:55,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-24 22:08:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:08:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:08:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:08:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:08:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:08:55,826 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 22:08:56,022 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:08:56,027 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:08:56,802 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:08:57,386 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:08:57,386 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-24 22:08:57,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:08:57 BoogieIcfgContainer [2023-11-24 22:08:57,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:08:57,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:08:57,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:08:57,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:08:57,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:08:55" (1/3) ... [2023-11-24 22:08:57,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11704a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:08:57, skipping insertion in model container [2023-11-24 22:08:57,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:55" (2/3) ... [2023-11-24 22:08:57,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11704a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:08:57, skipping insertion in model container [2023-11-24 22:08:57,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:08:57" (3/3) ... [2023-11-24 22:08:57,401 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-subst.wvr.c [2023-11-24 22:08:57,411 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 22:08:57,423 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:08:57,423 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-24 22:08:57,423 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 22:08:57,536 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-24 22:08:57,589 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:57,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:08:57,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:57,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:08:57,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-24 22:08:57,666 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:08:57,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2023-11-24 22:08:57,696 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ea4ad50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:57,696 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-24 22:08:58,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-24 22:08:58,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:58,285 INFO L85 PathProgramCache]: Analyzing trace with hash -674879659, now seen corresponding path program 1 times [2023-11-24 22:08:58,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:58,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983395759] [2023-11-24 22:08:58,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:58,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:58,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:58,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:58,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983395759] [2023-11-24 22:08:58,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983395759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:58,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:58,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:08:58,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847651721] [2023-11-24 22:08:58,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:58,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:58,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:58,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:58,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:08:58,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:58,883 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:58,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-24 22:08:58,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:59,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:59,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 22:08:59,123 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-24 22:08:59,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:59,126 INFO L85 PathProgramCache]: Analyzing trace with hash -72702536, now seen corresponding path program 1 times [2023-11-24 22:08:59,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:59,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212856154] [2023-11-24 22:08:59,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:59,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:59,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:08:59,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:59,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212856154] [2023-11-24 22:08:59,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212856154] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:59,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840648840] [2023-11-24 22:08:59,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:59,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:59,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:59,563 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:59,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 22:08:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:59,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 22:08:59,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:08:59,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:08:59,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840648840] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:59,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:59,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2023-11-24 22:08:59,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834768101] [2023-11-24 22:08:59,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:59,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 22:08:59,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:59,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 22:08:59,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-24 22:08:59,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:59,891 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:59,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 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) [2023-11-24 22:08:59,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:59,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:00,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:00,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:09:00,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:09:00,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:09:00,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-24 22:09:00,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:09:00,389 INFO L85 PathProgramCache]: Analyzing trace with hash -483978664, now seen corresponding path program 2 times [2023-11-24 22:09:00,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:09:00,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34130057] [2023-11-24 22:09:00,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:09:00,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:09:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:09:00,848 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-24 22:09:00,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:09:00,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34130057] [2023-11-24 22:09:00,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34130057] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:09:00,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179146604] [2023-11-24 22:09:00,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:09:00,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:09:00,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:09:00,851 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:09:00,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 22:09:01,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 22:09:01,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:09:01,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 22:09:01,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:09:01,190 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-24 22:09:01,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:09:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-24 22:09:01,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179146604] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:09:01,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:09:01,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-11-24 22:09:01,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911076882] [2023-11-24 22:09:01,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:09:01,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-24 22:09:01,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:09:01,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-24 22:09:01,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-11-24 22:09:01,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:01,289 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:09:01,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 17 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) [2023-11-24 22:09:01,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:01,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:09:01,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:01,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:01,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:09:01,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-24 22:09:01,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-24 22:09:01,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:09:01,851 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-24 22:09:01,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:09:01,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1281149192, now seen corresponding path program 3 times [2023-11-24 22:09:01,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:09:01,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962326411] [2023-11-24 22:09:01,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:09:01,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:09:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:09:06,382 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-24 22:09:06,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:09:06,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962326411] [2023-11-24 22:09:06,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962326411] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:09:06,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200657668] [2023-11-24 22:09:06,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-24 22:09:06,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:09:06,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:09:06,386 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:09:06,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976f7440-fc32-4f20-bcd1-64bbe7289cd3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 22:09:06,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-24 22:09:06,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:09:06,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 89 conjunts are in the unsatisfiable core [2023-11-24 22:09:06,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:09:06,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:06,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:06,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-24 22:09:06,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:06,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-24 22:09:07,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:07,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:07,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-24 22:09:07,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:07,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:07,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-24 22:09:07,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:07,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:07,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:07,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2023-11-24 22:09:07,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:07,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:07,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-24 22:09:07,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 22:09:07,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-24 22:09:07,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-24 22:09:07,745 INFO L349 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2023-11-24 22:09:07,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 17 [2023-11-24 22:09:07,974 INFO L349 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2023-11-24 22:09:07,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 21 [2023-11-24 22:09:08,309 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-24 22:09:08,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-24 22:09:08,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:08,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:08,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:08,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:08,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:08,824 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-24 22:09:08,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-24 22:09:08,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:09,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:09,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:09,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:09,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:09,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:09,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:09,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:09,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:09,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:09,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 22:09:10,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-24 22:09:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-24 22:09:10,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:09:10,407 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_257 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_257) c_~o_0~0.base) c_~o_0~0.offset) 2147483649))) is different from false [2023-11-24 22:09:45,984 INFO L349 Elim1Store]: treesize reduction 124, result has 44.4 percent of original size [2023-11-24 22:09:45,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 67 treesize of output 123 [2023-11-24 22:09:46,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:09:46,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2247 treesize of output 2233 [2023-11-24 22:09:46,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 532 treesize of output 500 [2023-11-24 22:09:46,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 500 treesize of output 492 [2023-11-24 22:09:46,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 492 treesize of output 488 [2023-11-24 22:09:46,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 242 [2023-11-24 22:09:46,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 486 treesize of output 470 [2023-11-24 22:09:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 60 refuted. 1 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-24 22:09:47,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200657668] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:09:47,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:09:47,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24, 20] total 64 [2023-11-24 22:09:47,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662656030] [2023-11-24 22:09:47,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:09:47,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-11-24 22:09:47,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:09:47,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-11-24 22:09:47,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=450, Invalid=3657, Unknown=57, NotChecked=126, Total=4290 [2023-11-24 22:09:47,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:47,667 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:09:47,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 2.3384615384615386) internal successors, (152), 65 states have internal predecessors, (152), 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) [2023-11-24 22:09:47,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:47,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:09:47,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-24 22:09:47,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:52,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]