./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95c338a7a91abcfb8302c7314ea1de7bdde280884a10e8d539233a34032b9a5d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:35:24,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:35:24,626 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 22:35:24,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:35:24,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:35:24,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:35:24,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:35:24,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:35:24,689 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:35:24,690 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:35:24,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:35:24,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:35:24,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:35:24,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:35:24,699 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:35:24,700 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:35:24,701 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:35:24,702 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:35:24,703 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:35:24,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:35:24,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:35:24,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:35:24,706 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:35:24,706 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:35:24,707 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 22:35:24,707 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:35:24,719 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:35:24,719 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:35:24,720 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:35:24,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:35:24,721 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:35:24,721 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:35:24,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:35:24,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:35:24,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:35:24,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:35:24,723 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:35:24,723 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:35:24,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:35:24,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:35:24,724 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:35:24,724 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:35:24,724 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:35:24,725 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:35:24,725 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95c338a7a91abcfb8302c7314ea1de7bdde280884a10e8d539233a34032b9a5d [2023-11-23 22:35:24,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:35:25,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:35:25,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:35:25,024 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:35:25,027 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:35:25,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c [2023-11-23 22:35:28,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:35:28,527 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:35:28,527 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c [2023-11-23 22:35:28,551 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/data/f0302c2ba/6abc1635cb0748b78e73a62c61a6574a/FLAG743be8389 [2023-11-23 22:35:28,569 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/data/f0302c2ba/6abc1635cb0748b78e73a62c61a6574a [2023-11-23 22:35:28,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:35:28,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:35:28,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:35:28,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:35:28,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:35:28,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e9aeea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28, skipping insertion in model container [2023-11-23 22:35:28,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,610 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:35:28,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:35:28,847 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:35:28,869 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:35:28,886 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:35:28,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28 WrapperNode [2023-11-23 22:35:28,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:35:28,889 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:35:28,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:35:28,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:35:28,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,930 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2023-11-23 22:35:28,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:35:28,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:35:28,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:35:28,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:35:28,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,948 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,959 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:35:28,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,960 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,972 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,977 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:35:28,983 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:35:28,984 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:35:28,984 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:35:28,985 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (1/1) ... [2023-11-23 22:35:28,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:35:29,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:29,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:35:29,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:35:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:35:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:35:29,087 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:35:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:35:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:35:29,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:35:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 22:35:29,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 22:35:29,183 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:35:29,189 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:35:29,685 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:35:29,709 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:35:29,710 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 22:35:29,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:29 BoogieIcfgContainer [2023-11-23 22:35:29,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:35:29,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:35:29,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:35:29,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:35:29,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:35:28" (1/3) ... [2023-11-23 22:35:29,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a61bfab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:29, skipping insertion in model container [2023-11-23 22:35:29,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:28" (2/3) ... [2023-11-23 22:35:29,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a61bfab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:29, skipping insertion in model container [2023-11-23 22:35:29,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:29" (3/3) ... [2023-11-23 22:35:29,729 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound2.c [2023-11-23 22:35:29,758 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:35:29,758 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-23 22:35:29,846 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:35:29,855 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=PETRI_NET, 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;@68458cee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:35:29,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-23 22:35:29,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 74 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 22:35:29,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 22:35:29,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:29,868 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:29,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:29,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:29,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1812025852, now seen corresponding path program 1 times [2023-11-23 22:35:29,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:29,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055169159] [2023-11-23 22:35:29,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:29,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:30,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:30,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055169159] [2023-11-23 22:35:30,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 22:35:30,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141577290] [2023-11-23 22:35:30,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:30,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:30,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:30,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:30,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:35:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:30,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 22:35:30,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:30,118 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 22:35:30,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:30,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141577290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:30,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:30,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:35:30,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275659591] [2023-11-23 22:35:30,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:30,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:35:30,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:30,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:35:30,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:35:30,193 INFO L87 Difference]: Start difference. First operand has 87 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 74 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:35:30,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:30,241 INFO L93 Difference]: Finished difference Result 172 states and 211 transitions. [2023-11-23 22:35:30,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:35:30,244 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-23 22:35:30,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:30,255 INFO L225 Difference]: With dead ends: 172 [2023-11-23 22:35:30,256 INFO L226 Difference]: Without dead ends: 84 [2023-11-23 22:35:30,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:35:30,266 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:30,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:35:30,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-23 22:35:30,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-23 22:35:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 72 states have internal predecessors, (74), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 22:35:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2023-11-23 22:35:30,350 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 20 [2023-11-23 22:35:30,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:30,350 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2023-11-23 22:35:30,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:35:30,351 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2023-11-23 22:35:30,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 22:35:30,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:30,355 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:30,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:30,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 22:35:30,578 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:30,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:30,579 INFO L85 PathProgramCache]: Analyzing trace with hash 982000830, now seen corresponding path program 1 times [2023-11-23 22:35:30,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:30,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184924712] [2023-11-23 22:35:30,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:30,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:30,615 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:30,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598901872] [2023-11-23 22:35:30,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:30,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:30,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:30,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:30,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:35:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:30,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:35:30,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:30,712 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:35:30,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:30,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:30,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184924712] [2023-11-23 22:35:30,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:30,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598901872] [2023-11-23 22:35:30,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598901872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:30,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:30,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:35:30,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909777698] [2023-11-23 22:35:30,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:30,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:35:30,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:30,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:35:30,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:30,717 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:35:30,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:30,775 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2023-11-23 22:35:30,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:35:30,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2023-11-23 22:35:30,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:30,779 INFO L225 Difference]: With dead ends: 108 [2023-11-23 22:35:30,779 INFO L226 Difference]: Without dead ends: 106 [2023-11-23 22:35:30,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:30,781 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 18 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:30,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 158 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:35:30,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-23 22:35:30,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 87. [2023-11-23 22:35:30,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 46 states have (on average 1.673913043478261) internal successors, (77), 75 states have internal predecessors, (77), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 22:35:30,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2023-11-23 22:35:30,798 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 20 [2023-11-23 22:35:30,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:30,799 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2023-11-23 22:35:30,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:35:30,799 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2023-11-23 22:35:30,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 22:35:30,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:30,800 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:30,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:31,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-23 22:35:31,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:31,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:31,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1646507377, now seen corresponding path program 1 times [2023-11-23 22:35:31,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:31,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317007952] [2023-11-23 22:35:31,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:31,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:31,030 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:31,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413761548] [2023-11-23 22:35:31,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:31,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:31,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:31,032 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:31,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:35:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:31,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:35:31,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:31,141 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:35:31,143 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:31,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:31,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317007952] [2023-11-23 22:35:31,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:31,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413761548] [2023-11-23 22:35:31,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413761548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:31,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:31,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:35:31,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740130974] [2023-11-23 22:35:31,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:31,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:35:31,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:31,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:35:31,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:31,149 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:35:31,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:31,271 INFO L93 Difference]: Finished difference Result 152 states and 167 transitions. [2023-11-23 22:35:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:35:31,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2023-11-23 22:35:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:31,275 INFO L225 Difference]: With dead ends: 152 [2023-11-23 22:35:31,275 INFO L226 Difference]: Without dead ends: 146 [2023-11-23 22:35:31,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:31,277 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 53 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:31,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 133 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:35:31,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-23 22:35:31,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 118. [2023-11-23 22:35:31,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 71 states have (on average 1.6901408450704225) internal successors, (120), 100 states have internal predecessors, (120), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 22:35:31,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 150 transitions. [2023-11-23 22:35:31,301 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 150 transitions. Word has length 27 [2023-11-23 22:35:31,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:31,301 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 150 transitions. [2023-11-23 22:35:31,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:35:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 150 transitions. [2023-11-23 22:35:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 22:35:31,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:31,303 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:31,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:31,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 22:35:31,526 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:31,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:31,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1745622607, now seen corresponding path program 1 times [2023-11-23 22:35:31,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:31,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846547780] [2023-11-23 22:35:31,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:31,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:31,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:31,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [142028687] [2023-11-23 22:35:31,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:31,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:31,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:31,561 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:31,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:35:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:31,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:35:31,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:35:31,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:31,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:31,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846547780] [2023-11-23 22:35:31,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:31,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142028687] [2023-11-23 22:35:31,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142028687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:31,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:31,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:35:31,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069554020] [2023-11-23 22:35:31,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:31,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:35:31,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:31,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:35:31,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:31,717 INFO L87 Difference]: Start difference. First operand 118 states and 150 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:35:31,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:31,858 INFO L93 Difference]: Finished difference Result 142 states and 157 transitions. [2023-11-23 22:35:31,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:35:31,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2023-11-23 22:35:31,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:31,861 INFO L225 Difference]: With dead ends: 142 [2023-11-23 22:35:31,862 INFO L226 Difference]: Without dead ends: 139 [2023-11-23 22:35:31,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:35:31,864 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 160 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:31,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 138 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:35:31,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-23 22:35:31,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 119. [2023-11-23 22:35:31,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 72 states have (on average 1.6527777777777777) internal successors, (119), 101 states have internal predecessors, (119), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 22:35:31,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 149 transitions. [2023-11-23 22:35:31,918 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 149 transitions. Word has length 29 [2023-11-23 22:35:31,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:31,920 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 149 transitions. [2023-11-23 22:35:31,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:35:31,920 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 149 transitions. [2023-11-23 22:35:31,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 22:35:31,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:31,921 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:31,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:32,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:32,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:32,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:32,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1720274090, now seen corresponding path program 1 times [2023-11-23 22:35:32,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:32,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904172901] [2023-11-23 22:35:32,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:32,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:32,155 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:32,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103497525] [2023-11-23 22:35:32,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:32,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:32,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:32,180 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:32,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:35:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:32,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:35:32,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:32,388 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:35:32,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:32,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:32,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904172901] [2023-11-23 22:35:32,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:32,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103497525] [2023-11-23 22:35:32,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103497525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:32,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:32,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:35:32,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018846110] [2023-11-23 22:35:32,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:32,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:35:32,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:32,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:35:32,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:32,406 INFO L87 Difference]: Start difference. First operand 119 states and 149 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:35:32,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:32,575 INFO L93 Difference]: Finished difference Result 139 states and 154 transitions. [2023-11-23 22:35:32,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:35:32,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2023-11-23 22:35:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:32,579 INFO L225 Difference]: With dead ends: 139 [2023-11-23 22:35:32,580 INFO L226 Difference]: Without dead ends: 132 [2023-11-23 22:35:32,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:35:32,582 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 153 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:32,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 141 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:35:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-23 22:35:32,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 116. [2023-11-23 22:35:32,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 69 states have (on average 1.6376811594202898) internal successors, (113), 98 states have internal predecessors, (113), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 22:35:32,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 143 transitions. [2023-11-23 22:35:32,603 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 143 transitions. Word has length 30 [2023-11-23 22:35:32,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:32,604 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 143 transitions. [2023-11-23 22:35:32,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:35:32,605 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 143 transitions. [2023-11-23 22:35:32,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-23 22:35:32,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:32,606 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:32,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:32,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:32,821 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:32,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:32,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1164336911, now seen corresponding path program 1 times [2023-11-23 22:35:32,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:32,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337276593] [2023-11-23 22:35:32,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:32,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:32,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:32,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208663460] [2023-11-23 22:35:32,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:32,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:32,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:32,845 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:32,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 22:35:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:32,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:35:32,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:32,983 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 22:35:32,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:32,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:32,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337276593] [2023-11-23 22:35:32,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:32,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208663460] [2023-11-23 22:35:32,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208663460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:32,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:32,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:35:32,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394935767] [2023-11-23 22:35:32,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:32,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:35:32,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:32,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:35:32,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:32,987 INFO L87 Difference]: Start difference. First operand 116 states and 143 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:35:33,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:33,374 INFO L93 Difference]: Finished difference Result 202 states and 251 transitions. [2023-11-23 22:35:33,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:35:33,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2023-11-23 22:35:33,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:33,377 INFO L225 Difference]: With dead ends: 202 [2023-11-23 22:35:33,377 INFO L226 Difference]: Without dead ends: 197 [2023-11-23 22:35:33,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:33,379 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 111 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:33,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 101 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:35:33,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-23 22:35:33,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 162. [2023-11-23 22:35:33,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 107 states have (on average 1.6168224299065421) internal successors, (173), 136 states have internal predecessors, (173), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 22:35:33,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 219 transitions. [2023-11-23 22:35:33,415 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 219 transitions. Word has length 38 [2023-11-23 22:35:33,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:33,416 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 219 transitions. [2023-11-23 22:35:33,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:35:33,417 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 219 transitions. [2023-11-23 22:35:33,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 22:35:33,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:33,421 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:33,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-23 22:35:33,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:33,635 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:33,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:33,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1734705951, now seen corresponding path program 1 times [2023-11-23 22:35:33,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:33,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143463038] [2023-11-23 22:35:33,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:33,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:33,652 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:33,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636886471] [2023-11-23 22:35:33,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:33,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:33,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:33,654 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:33,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 22:35:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:33,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:35:33,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:33,812 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 22:35:33,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:33,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:33,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143463038] [2023-11-23 22:35:33,813 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:33,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636886471] [2023-11-23 22:35:33,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636886471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:33,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:33,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:35:33,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183378313] [2023-11-23 22:35:33,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:33,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:35:33,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:33,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:35:33,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:33,817 INFO L87 Difference]: Start difference. First operand 162 states and 219 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:35:34,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:34,038 INFO L93 Difference]: Finished difference Result 197 states and 242 transitions. [2023-11-23 22:35:34,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:35:34,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2023-11-23 22:35:34,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:34,047 INFO L225 Difference]: With dead ends: 197 [2023-11-23 22:35:34,049 INFO L226 Difference]: Without dead ends: 194 [2023-11-23 22:35:34,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:34,052 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 107 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:34,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 101 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:35:34,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-23 22:35:34,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 163. [2023-11-23 22:35:34,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 108 states have (on average 1.5740740740740742) internal successors, (170), 137 states have internal predecessors, (170), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 22:35:34,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 216 transitions. [2023-11-23 22:35:34,093 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 216 transitions. Word has length 39 [2023-11-23 22:35:34,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:34,094 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 216 transitions. [2023-11-23 22:35:34,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:35:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 216 transitions. [2023-11-23 22:35:34,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-23 22:35:34,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:34,103 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:34,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:34,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:34,322 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:34,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:34,322 INFO L85 PathProgramCache]: Analyzing trace with hash -221741680, now seen corresponding path program 1 times [2023-11-23 22:35:34,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:34,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864490684] [2023-11-23 22:35:34,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:34,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:34,343 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:34,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425191405] [2023-11-23 22:35:34,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:34,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:34,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:34,348 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:34,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 22:35:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:34,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:35:34,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-23 22:35:34,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:34,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:34,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864490684] [2023-11-23 22:35:34,502 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:34,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425191405] [2023-11-23 22:35:34,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425191405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:34,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:34,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:35:34,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010923538] [2023-11-23 22:35:34,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:34,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:35:34,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:34,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:35:34,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:34,506 INFO L87 Difference]: Start difference. First operand 163 states and 216 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 22:35:35,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:35,140 INFO L93 Difference]: Finished difference Result 198 states and 245 transitions. [2023-11-23 22:35:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:35:35,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 59 [2023-11-23 22:35:35,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:35,144 INFO L225 Difference]: With dead ends: 198 [2023-11-23 22:35:35,144 INFO L226 Difference]: Without dead ends: 196 [2023-11-23 22:35:35,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:35:35,145 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 152 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:35,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 89 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:35:35,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-23 22:35:35,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 165. [2023-11-23 22:35:35,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 110 states have (on average 1.5454545454545454) internal successors, (170), 139 states have internal predecessors, (170), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 22:35:35,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 216 transitions. [2023-11-23 22:35:35,171 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 216 transitions. Word has length 59 [2023-11-23 22:35:35,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:35,171 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 216 transitions. [2023-11-23 22:35:35,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 22:35:35,172 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 216 transitions. [2023-11-23 22:35:35,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 22:35:35,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:35,173 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:35,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:35,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:35,395 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:35,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:35,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1715942605, now seen corresponding path program 1 times [2023-11-23 22:35:35,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:35,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517091496] [2023-11-23 22:35:35,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:35,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:35,414 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:35,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445257820] [2023-11-23 22:35:35,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:35,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:35,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:35,455 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:35,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 22:35:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:35,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:35:35,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:35,632 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-23 22:35:35,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:35,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:35,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517091496] [2023-11-23 22:35:35,633 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:35,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445257820] [2023-11-23 22:35:35,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445257820] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:35,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:35,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:35:35,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116238567] [2023-11-23 22:35:35,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:35,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:35:35,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:35,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:35:35,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:35,641 INFO L87 Difference]: Start difference. First operand 165 states and 216 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 22:35:35,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:35,849 INFO L93 Difference]: Finished difference Result 198 states and 241 transitions. [2023-11-23 22:35:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:35:35,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2023-11-23 22:35:35,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:35,853 INFO L225 Difference]: With dead ends: 198 [2023-11-23 22:35:35,853 INFO L226 Difference]: Without dead ends: 196 [2023-11-23 22:35:35,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:35:35,858 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 147 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:35,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 91 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:35:35,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-23 22:35:35,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 167. [2023-11-23 22:35:35,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 112 states have (on average 1.5178571428571428) internal successors, (170), 141 states have internal predecessors, (170), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 22:35:35,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 216 transitions. [2023-11-23 22:35:35,881 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 216 transitions. Word has length 60 [2023-11-23 22:35:35,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:35,882 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 216 transitions. [2023-11-23 22:35:35,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 22:35:35,882 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 216 transitions. [2023-11-23 22:35:35,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 22:35:35,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:35,886 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:35,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:36,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 22:35:36,100 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:36,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:36,100 INFO L85 PathProgramCache]: Analyzing trace with hash -246595163, now seen corresponding path program 1 times [2023-11-23 22:35:36,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:36,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191104071] [2023-11-23 22:35:36,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:36,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:36,117 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:36,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1947026062] [2023-11-23 22:35:36,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:36,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:36,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:36,120 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:36,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 22:35:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:36,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:35:36,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:36,222 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-23 22:35:36,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:36,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:36,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191104071] [2023-11-23 22:35:36,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:36,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947026062] [2023-11-23 22:35:36,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947026062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:36,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:36,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:35:36,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703344009] [2023-11-23 22:35:36,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:36,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:35:36,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:36,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:35:36,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:36,228 INFO L87 Difference]: Start difference. First operand 167 states and 216 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 22:35:36,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:36,299 INFO L93 Difference]: Finished difference Result 174 states and 216 transitions. [2023-11-23 22:35:36,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:35:36,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-11-23 22:35:36,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:36,305 INFO L225 Difference]: With dead ends: 174 [2023-11-23 22:35:36,305 INFO L226 Difference]: Without dead ends: 173 [2023-11-23 22:35:36,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:36,307 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 16 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:36,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 141 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:35:36,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-23 22:35:36,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 167. [2023-11-23 22:35:36,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 112 states have (on average 1.5089285714285714) internal successors, (169), 141 states have internal predecessors, (169), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 22:35:36,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 215 transitions. [2023-11-23 22:35:36,332 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 215 transitions. Word has length 62 [2023-11-23 22:35:36,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:36,333 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 215 transitions. [2023-11-23 22:35:36,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 22:35:36,334 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 215 transitions. [2023-11-23 22:35:36,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 22:35:36,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:36,336 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:36,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:36,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 22:35:36,565 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:36,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:36,565 INFO L85 PathProgramCache]: Analyzing trace with hash -246595121, now seen corresponding path program 1 times [2023-11-23 22:35:36,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:36,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415615594] [2023-11-23 22:35:36,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:36,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:36,581 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:36,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777053901] [2023-11-23 22:35:36,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:36,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:36,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:36,584 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:36,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 22:35:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:36,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:35:36,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:36,841 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 22:35:36,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:36,990 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 22:35:36,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:36,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415615594] [2023-11-23 22:35:36,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:36,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777053901] [2023-11-23 22:35:36,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777053901] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:35:36,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:35:36,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-23 22:35:36,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906932029] [2023-11-23 22:35:36,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:35:36,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:35:36,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:36,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:35:36,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:35:36,995 INFO L87 Difference]: Start difference. First operand 167 states and 215 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 22:35:37,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:37,194 INFO L93 Difference]: Finished difference Result 167 states and 215 transitions. [2023-11-23 22:35:37,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:35:37,195 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 62 [2023-11-23 22:35:37,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:37,197 INFO L225 Difference]: With dead ends: 167 [2023-11-23 22:35:37,198 INFO L226 Difference]: Without dead ends: 165 [2023-11-23 22:35:37,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:35:37,199 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 92 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:37,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 183 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:35:37,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-23 22:35:37,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2023-11-23 22:35:37,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 112 states have (on average 1.4375) internal successors, (161), 139 states have internal predecessors, (161), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 22:35:37,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 207 transitions. [2023-11-23 22:35:37,222 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 207 transitions. Word has length 62 [2023-11-23 22:35:37,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:37,223 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 207 transitions. [2023-11-23 22:35:37,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 22:35:37,223 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 207 transitions. [2023-11-23 22:35:37,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 22:35:37,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:37,225 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:37,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:37,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 22:35:37,444 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:37,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:37,445 INFO L85 PathProgramCache]: Analyzing trace with hash 945484661, now seen corresponding path program 1 times [2023-11-23 22:35:37,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:37,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561148681] [2023-11-23 22:35:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:37,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:37,475 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:37,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094680945] [2023-11-23 22:35:37,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:37,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:37,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:37,494 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:37,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 22:35:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:37,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:35:37,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-23 22:35:37,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:37,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:37,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561148681] [2023-11-23 22:35:37,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:37,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094680945] [2023-11-23 22:35:37,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094680945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:37,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:37,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:35:37,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148701398] [2023-11-23 22:35:37,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:37,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:35:37,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:37,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:35:37,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:35:37,650 INFO L87 Difference]: Start difference. First operand 165 states and 207 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 22:35:37,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:37,756 INFO L93 Difference]: Finished difference Result 165 states and 207 transitions. [2023-11-23 22:35:37,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:35:37,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2023-11-23 22:35:37,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:37,759 INFO L225 Difference]: With dead ends: 165 [2023-11-23 22:35:37,759 INFO L226 Difference]: Without dead ends: 164 [2023-11-23 22:35:37,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:35:37,760 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 106 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:37,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 139 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:35:37,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-23 22:35:37,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2023-11-23 22:35:37,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 112 states have (on average 1.4196428571428572) internal successors, (159), 138 states have internal predecessors, (159), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 22:35:37,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 205 transitions. [2023-11-23 22:35:37,783 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 205 transitions. Word has length 63 [2023-11-23 22:35:37,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:37,784 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 205 transitions. [2023-11-23 22:35:37,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 22:35:37,784 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 205 transitions. [2023-11-23 22:35:37,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 22:35:37,785 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:37,786 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:37,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:38,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:38,017 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:38,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:38,017 INFO L85 PathProgramCache]: Analyzing trace with hash -754746457, now seen corresponding path program 1 times [2023-11-23 22:35:38,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:38,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532099597] [2023-11-23 22:35:38,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:38,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:38,038 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:38,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323781208] [2023-11-23 22:35:38,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:38,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:38,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:38,040 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:38,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 22:35:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:38,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:35:38,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:38,186 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-23 22:35:38,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:38,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:38,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532099597] [2023-11-23 22:35:38,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:38,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323781208] [2023-11-23 22:35:38,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323781208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:38,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:38,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:35:38,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690733523] [2023-11-23 22:35:38,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:38,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:35:38,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:38,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:35:38,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:38,192 INFO L87 Difference]: Start difference. First operand 164 states and 205 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 22:35:38,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:38,473 INFO L93 Difference]: Finished difference Result 164 states and 205 transitions. [2023-11-23 22:35:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:35:38,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2023-11-23 22:35:38,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:38,476 INFO L225 Difference]: With dead ends: 164 [2023-11-23 22:35:38,476 INFO L226 Difference]: Without dead ends: 162 [2023-11-23 22:35:38,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:38,478 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 45 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:38,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 96 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:35:38,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-23 22:35:38,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-11-23 22:35:38,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 112 states have (on average 1.3839285714285714) internal successors, (155), 136 states have internal predecessors, (155), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 22:35:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 201 transitions. [2023-11-23 22:35:38,499 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 201 transitions. Word has length 64 [2023-11-23 22:35:38,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:38,500 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 201 transitions. [2023-11-23 22:35:38,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 22:35:38,501 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 201 transitions. [2023-11-23 22:35:38,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 22:35:38,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:38,502 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:38,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:38,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:38,715 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:38,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:38,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1922303561, now seen corresponding path program 1 times [2023-11-23 22:35:38,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:38,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777719618] [2023-11-23 22:35:38,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:38,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:38,734 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:38,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660545087] [2023-11-23 22:35:38,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:38,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:38,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:38,746 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:38,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 22:35:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:38,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:35:38,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:38,924 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-23 22:35:38,924 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:38,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:38,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777719618] [2023-11-23 22:35:38,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:38,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660545087] [2023-11-23 22:35:38,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660545087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:38,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:38,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:35:38,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407968551] [2023-11-23 22:35:38,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:38,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:35:38,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:38,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:35:38,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:38,929 INFO L87 Difference]: Start difference. First operand 162 states and 201 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 22:35:39,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:39,052 INFO L93 Difference]: Finished difference Result 182 states and 212 transitions. [2023-11-23 22:35:39,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:35:39,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2023-11-23 22:35:39,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:39,055 INFO L225 Difference]: With dead ends: 182 [2023-11-23 22:35:39,055 INFO L226 Difference]: Without dead ends: 181 [2023-11-23 22:35:39,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:39,057 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 53 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:39,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 142 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:35:39,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-23 22:35:39,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 166. [2023-11-23 22:35:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 116 states have (on average 1.3706896551724137) internal successors, (159), 140 states have internal predecessors, (159), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 22:35:39,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 205 transitions. [2023-11-23 22:35:39,083 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 205 transitions. Word has length 65 [2023-11-23 22:35:39,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:39,084 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 205 transitions. [2023-11-23 22:35:39,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 22:35:39,085 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 205 transitions. [2023-11-23 22:35:39,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 22:35:39,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:39,089 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:39,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:39,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 22:35:39,303 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:39,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:39,304 INFO L85 PathProgramCache]: Analyzing trace with hash 116785460, now seen corresponding path program 1 times [2023-11-23 22:35:39,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:39,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005811796] [2023-11-23 22:35:39,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:39,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:39,318 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:39,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2136446848] [2023-11-23 22:35:39,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:39,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:39,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:39,320 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:39,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 22:35:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:39,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:35:39,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:39,784 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-23 22:35:39,784 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:40,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:40,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005811796] [2023-11-23 22:35:40,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:40,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136446848] [2023-11-23 22:35:40,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136446848] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:35:40,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:35:40,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-23 22:35:40,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198697721] [2023-11-23 22:35:40,153 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:35:40,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:35:40,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:40,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:35:40,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:35:40,155 INFO L87 Difference]: Start difference. First operand 166 states and 205 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-23 22:35:40,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:40,947 INFO L93 Difference]: Finished difference Result 272 states and 319 transitions. [2023-11-23 22:35:40,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 22:35:40,948 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 74 [2023-11-23 22:35:40,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:40,951 INFO L225 Difference]: With dead ends: 272 [2023-11-23 22:35:40,951 INFO L226 Difference]: Without dead ends: 266 [2023-11-23 22:35:40,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-11-23 22:35:40,953 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 319 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:40,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 323 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:35:40,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-23 22:35:40,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 232. [2023-11-23 22:35:40,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 172 states have (on average 1.3837209302325582) internal successors, (238), 196 states have internal predecessors, (238), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-23 22:35:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 304 transitions. [2023-11-23 22:35:40,988 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 304 transitions. Word has length 74 [2023-11-23 22:35:40,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:40,989 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 304 transitions. [2023-11-23 22:35:40,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-23 22:35:40,990 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 304 transitions. [2023-11-23 22:35:40,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-23 22:35:40,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:40,991 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:41,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:41,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:41,211 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:41,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:41,212 INFO L85 PathProgramCache]: Analyzing trace with hash -674617981, now seen corresponding path program 1 times [2023-11-23 22:35:41,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:41,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430551581] [2023-11-23 22:35:41,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:41,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:41,225 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:41,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802345755] [2023-11-23 22:35:41,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:41,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:41,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:41,228 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:41,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 22:35:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:41,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:35:41,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:41,661 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-23 22:35:41,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:41,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:41,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430551581] [2023-11-23 22:35:41,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:41,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802345755] [2023-11-23 22:35:41,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802345755] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:35:41,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:35:41,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-23 22:35:41,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131957079] [2023-11-23 22:35:41,898 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:35:41,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:35:41,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:41,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:35:41,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:35:41,900 INFO L87 Difference]: Start difference. First operand 232 states and 304 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-23 22:35:42,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:42,556 INFO L93 Difference]: Finished difference Result 328 states and 407 transitions. [2023-11-23 22:35:42,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:35:42,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 75 [2023-11-23 22:35:42,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:42,560 INFO L225 Difference]: With dead ends: 328 [2023-11-23 22:35:42,560 INFO L226 Difference]: Without dead ends: 325 [2023-11-23 22:35:42,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-11-23 22:35:42,562 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 254 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:42,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 335 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 22:35:42,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-11-23 22:35:42,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 288. [2023-11-23 22:35:42,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 218 states have (on average 1.3761467889908257) internal successors, (300), 242 states have internal predecessors, (300), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-23 22:35:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 386 transitions. [2023-11-23 22:35:42,608 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 386 transitions. Word has length 75 [2023-11-23 22:35:42,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:42,608 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 386 transitions. [2023-11-23 22:35:42,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-23 22:35:42,609 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 386 transitions. [2023-11-23 22:35:42,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-23 22:35:42,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:42,610 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:42,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:42,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:42,835 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:42,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:42,836 INFO L85 PathProgramCache]: Analyzing trace with hash 561679126, now seen corresponding path program 1 times [2023-11-23 22:35:42,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:42,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600450620] [2023-11-23 22:35:42,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:42,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:42,857 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:42,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135569193] [2023-11-23 22:35:42,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:42,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:42,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:42,864 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:42,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 22:35:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:42,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:35:42,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:43,070 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-23 22:35:43,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:43,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:43,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600450620] [2023-11-23 22:35:43,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:43,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135569193] [2023-11-23 22:35:43,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135569193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:43,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:43,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:35:43,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504251858] [2023-11-23 22:35:43,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:43,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:35:43,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:43,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:35:43,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:35:43,074 INFO L87 Difference]: Start difference. First operand 288 states and 386 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 22:35:43,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:43,455 INFO L93 Difference]: Finished difference Result 437 states and 575 transitions. [2023-11-23 22:35:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:35:43,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2023-11-23 22:35:43,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:43,460 INFO L225 Difference]: With dead ends: 437 [2023-11-23 22:35:43,461 INFO L226 Difference]: Without dead ends: 432 [2023-11-23 22:35:43,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:35:43,462 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 147 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:43,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 182 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:35:43,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-11-23 22:35:43,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 393. [2023-11-23 22:35:43,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 303 states have (on average 1.3795379537953796) internal successors, (418), 327 states have internal predecessors, (418), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-23 22:35:43,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 544 transitions. [2023-11-23 22:35:43,523 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 544 transitions. Word has length 76 [2023-11-23 22:35:43,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:43,524 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 544 transitions. [2023-11-23 22:35:43,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 22:35:43,524 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 544 transitions. [2023-11-23 22:35:43,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-23 22:35:43,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:43,526 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:43,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:43,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 22:35:43,745 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:43,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:43,746 INFO L85 PathProgramCache]: Analyzing trace with hash 617318363, now seen corresponding path program 1 times [2023-11-23 22:35:43,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:43,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512988598] [2023-11-23 22:35:43,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:43,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:43,769 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:43,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [175335802] [2023-11-23 22:35:43,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:43,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:43,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:43,772 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:43,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 22:35:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:43,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:35:43,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:44,100 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-23 22:35:44,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:44,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:44,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512988598] [2023-11-23 22:35:44,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:44,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175335802] [2023-11-23 22:35:44,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175335802] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:35:44,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:35:44,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-23 22:35:44,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383570987] [2023-11-23 22:35:44,197 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:35:44,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:35:44,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:44,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:35:44,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:35:44,199 INFO L87 Difference]: Start difference. First operand 393 states and 544 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 22:35:44,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:44,571 INFO L93 Difference]: Finished difference Result 404 states and 545 transitions. [2023-11-23 22:35:44,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:35:44,572 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2023-11-23 22:35:44,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:44,576 INFO L225 Difference]: With dead ends: 404 [2023-11-23 22:35:44,576 INFO L226 Difference]: Without dead ends: 401 [2023-11-23 22:35:44,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:35:44,577 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 96 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:44,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 229 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:35:44,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-23 22:35:44,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 390. [2023-11-23 22:35:44,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 303 states have (on average 1.3564356435643565) internal successors, (411), 324 states have internal predecessors, (411), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-23 22:35:44,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 537 transitions. [2023-11-23 22:35:44,631 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 537 transitions. Word has length 76 [2023-11-23 22:35:44,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:44,632 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 537 transitions. [2023-11-23 22:35:44,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 22:35:44,632 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 537 transitions. [2023-11-23 22:35:44,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-23 22:35:44,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:44,635 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:44,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:44,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 22:35:44,860 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:44,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:44,860 INFO L85 PathProgramCache]: Analyzing trace with hash 232183781, now seen corresponding path program 1 times [2023-11-23 22:35:44,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:44,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235981366] [2023-11-23 22:35:44,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:44,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:44,878 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:44,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204440818] [2023-11-23 22:35:44,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:44,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:44,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:44,890 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:44,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 22:35:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:44,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 22:35:44,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:45,149 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-23 22:35:45,150 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:45,428 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-23 22:35:45,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:45,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235981366] [2023-11-23 22:35:45,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:45,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204440818] [2023-11-23 22:35:45,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204440818] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:35:45,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:35:45,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-11-23 22:35:45,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066479812] [2023-11-23 22:35:45,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:35:45,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 22:35:45,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:45,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 22:35:45,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-23 22:35:45,431 INFO L87 Difference]: Start difference. First operand 390 states and 537 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-23 22:35:45,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:45,987 INFO L93 Difference]: Finished difference Result 403 states and 543 transitions. [2023-11-23 22:35:45,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 22:35:45,988 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 77 [2023-11-23 22:35:45,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:45,992 INFO L225 Difference]: With dead ends: 403 [2023-11-23 22:35:45,992 INFO L226 Difference]: Without dead ends: 392 [2023-11-23 22:35:45,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2023-11-23 22:35:45,994 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 247 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:45,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 347 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:35:45,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-11-23 22:35:46,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 300. [2023-11-23 22:35:46,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 232 states have (on average 1.2672413793103448) internal successors, (294), 248 states have internal predecessors, (294), 49 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-23 22:35:46,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 392 transitions. [2023-11-23 22:35:46,067 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 392 transitions. Word has length 77 [2023-11-23 22:35:46,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:46,068 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 392 transitions. [2023-11-23 22:35:46,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-23 22:35:46,068 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 392 transitions. [2023-11-23 22:35:46,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-23 22:35:46,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:46,071 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:46,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:46,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:46,287 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:46,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:46,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1957000147, now seen corresponding path program 1 times [2023-11-23 22:35:46,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:46,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200350978] [2023-11-23 22:35:46,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:46,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:46,296 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:46,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1990549500] [2023-11-23 22:35:46,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:46,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:46,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:46,298 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:46,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 22:35:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:46,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 22:35:46,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:46,721 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-23 22:35:46,721 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:46,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:46,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200350978] [2023-11-23 22:35:46,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:46,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990549500] [2023-11-23 22:35:46,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990549500] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:35:46,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:35:46,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-23 22:35:46,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340600224] [2023-11-23 22:35:46,813 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:35:46,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 22:35:46,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:46,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 22:35:46,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:35:46,815 INFO L87 Difference]: Start difference. First operand 300 states and 392 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-23 22:35:47,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:47,667 INFO L93 Difference]: Finished difference Result 698 states and 908 transitions. [2023-11-23 22:35:47,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 22:35:47,668 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 77 [2023-11-23 22:35:47,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:47,674 INFO L225 Difference]: With dead ends: 698 [2023-11-23 22:35:47,674 INFO L226 Difference]: Without dead ends: 694 [2023-11-23 22:35:47,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2023-11-23 22:35:47,676 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 345 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:47,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 386 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:35:47,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2023-11-23 22:35:47,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 524. [2023-11-23 22:35:47,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 416 states have (on average 1.2403846153846154) internal successors, (516), 432 states have internal predecessors, (516), 89 states have call successors, (89), 2 states have call predecessors, (89), 2 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-23 22:35:47,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 694 transitions. [2023-11-23 22:35:47,792 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 694 transitions. Word has length 77 [2023-11-23 22:35:47,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:47,793 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 694 transitions. [2023-11-23 22:35:47,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-23 22:35:47,793 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 694 transitions. [2023-11-23 22:35:47,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-23 22:35:47,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:47,795 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:47,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:48,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:48,014 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:48,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:48,014 INFO L85 PathProgramCache]: Analyzing trace with hash 742198340, now seen corresponding path program 1 times [2023-11-23 22:35:48,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:48,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749748935] [2023-11-23 22:35:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:48,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:48,029 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:48,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1952032783] [2023-11-23 22:35:48,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:48,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:48,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:48,032 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:48,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-23 22:35:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:48,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:35:48,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:48,205 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 22:35:48,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:48,388 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 22:35:48,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:48,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749748935] [2023-11-23 22:35:48,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:48,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952032783] [2023-11-23 22:35:48,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952032783] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:35:48,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:35:48,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 22:35:48,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300429914] [2023-11-23 22:35:48,390 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:35:48,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:35:48,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:48,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:35:48,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:35:48,393 INFO L87 Difference]: Start difference. First operand 524 states and 694 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-23 22:35:49,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:49,169 INFO L93 Difference]: Finished difference Result 843 states and 1139 transitions. [2023-11-23 22:35:49,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:35:49,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 97 [2023-11-23 22:35:49,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:49,177 INFO L225 Difference]: With dead ends: 843 [2023-11-23 22:35:49,178 INFO L226 Difference]: Without dead ends: 841 [2023-11-23 22:35:49,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:35:49,179 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 329 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:49,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 233 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:35:49,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2023-11-23 22:35:49,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 743. [2023-11-23 22:35:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 592 states have (on average 1.258445945945946) internal successors, (745), 607 states have internal predecessors, (745), 133 states have call successors, (133), 2 states have call predecessors, (133), 2 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-23 22:35:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1011 transitions. [2023-11-23 22:35:49,326 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1011 transitions. Word has length 97 [2023-11-23 22:35:49,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:49,334 INFO L495 AbstractCegarLoop]: Abstraction has 743 states and 1011 transitions. [2023-11-23 22:35:49,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-23 22:35:49,335 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1011 transitions. [2023-11-23 22:35:49,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-23 22:35:49,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:49,336 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:49,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:49,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:49,551 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:49,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:49,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1533312153, now seen corresponding path program 1 times [2023-11-23 22:35:49,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:49,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591780577] [2023-11-23 22:35:49,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:49,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:49,563 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:49,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1867663414] [2023-11-23 22:35:49,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:49,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:49,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:49,566 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:49,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-23 22:35:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:49,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:35:49,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:49,728 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 22:35:49,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 22:35:49,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:49,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591780577] [2023-11-23 22:35:49,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:49,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867663414] [2023-11-23 22:35:49,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867663414] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:35:49,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:35:49,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 22:35:49,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738489100] [2023-11-23 22:35:49,905 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:35:49,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:35:49,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:49,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:35:49,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:35:49,907 INFO L87 Difference]: Start difference. First operand 743 states and 1011 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-23 22:35:50,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:50,421 INFO L93 Difference]: Finished difference Result 846 states and 1119 transitions. [2023-11-23 22:35:50,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:35:50,422 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 98 [2023-11-23 22:35:50,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:50,428 INFO L225 Difference]: With dead ends: 846 [2023-11-23 22:35:50,428 INFO L226 Difference]: Without dead ends: 844 [2023-11-23 22:35:50,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:35:50,430 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 277 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:50,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 231 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:35:50,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2023-11-23 22:35:50,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 746. [2023-11-23 22:35:50,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 596 states have (on average 1.2164429530201342) internal successors, (725), 610 states have internal predecessors, (725), 133 states have call successors, (133), 2 states have call predecessors, (133), 2 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-23 22:35:50,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 991 transitions. [2023-11-23 22:35:50,556 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 991 transitions. Word has length 98 [2023-11-23 22:35:50,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:50,557 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 991 transitions. [2023-11-23 22:35:50,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-23 22:35:50,557 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 991 transitions. [2023-11-23 22:35:50,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-23 22:35:50,559 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:50,559 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:50,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:50,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:50,779 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:50,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:50,779 INFO L85 PathProgramCache]: Analyzing trace with hash 339199601, now seen corresponding path program 1 times [2023-11-23 22:35:50,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:50,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978149738] [2023-11-23 22:35:50,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:50,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:50,787 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:50,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [517766549] [2023-11-23 22:35:50,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:50,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:50,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:50,789 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:50,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 22:35:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:50,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:35:50,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:50,972 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 22:35:50,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:50,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:50,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978149738] [2023-11-23 22:35:50,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:50,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517766549] [2023-11-23 22:35:50,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517766549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:50,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:50,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:35:50,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247963688] [2023-11-23 22:35:50,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:50,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:35:50,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:50,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:35:50,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:50,977 INFO L87 Difference]: Start difference. First operand 746 states and 991 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-23 22:35:51,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:51,200 INFO L93 Difference]: Finished difference Result 748 states and 991 transitions. [2023-11-23 22:35:51,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:35:51,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2023-11-23 22:35:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:51,207 INFO L225 Difference]: With dead ends: 748 [2023-11-23 22:35:51,207 INFO L226 Difference]: Without dead ends: 747 [2023-11-23 22:35:51,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:35:51,209 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 18 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:51,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 199 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:35:51,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2023-11-23 22:35:51,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 745. [2023-11-23 22:35:51,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 596 states have (on average 1.2097315436241611) internal successors, (721), 609 states have internal predecessors, (721), 133 states have call successors, (133), 2 states have call predecessors, (133), 2 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-23 22:35:51,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 987 transitions. [2023-11-23 22:35:51,362 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 987 transitions. Word has length 100 [2023-11-23 22:35:51,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:51,363 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 987 transitions. [2023-11-23 22:35:51,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-23 22:35:51,364 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 987 transitions. [2023-11-23 22:35:51,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-23 22:35:51,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:51,365 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:51,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:51,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-23 22:35:51,587 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:51,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:51,588 INFO L85 PathProgramCache]: Analyzing trace with hash -962612885, now seen corresponding path program 1 times [2023-11-23 22:35:51,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:51,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803819715] [2023-11-23 22:35:51,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:51,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:51,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:51,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1310036912] [2023-11-23 22:35:51,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:51,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:51,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:51,635 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:51,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-23 22:35:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:51,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:35:51,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 22:35:51,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 22:35:51,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:51,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803819715] [2023-11-23 22:35:51,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:51,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310036912] [2023-11-23 22:35:51,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310036912] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:35:51,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:35:51,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 22:35:51,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791861669] [2023-11-23 22:35:51,994 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:35:51,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:35:51,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:51,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:35:51,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:35:51,996 INFO L87 Difference]: Start difference. First operand 745 states and 987 transitions. Second operand has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-23 22:35:52,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:52,695 INFO L93 Difference]: Finished difference Result 1215 states and 1577 transitions. [2023-11-23 22:35:52,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:35:52,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 103 [2023-11-23 22:35:52,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:52,705 INFO L225 Difference]: With dead ends: 1215 [2023-11-23 22:35:52,706 INFO L226 Difference]: Without dead ends: 1214 [2023-11-23 22:35:52,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:35:52,707 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 257 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:52,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 279 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:35:52,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2023-11-23 22:35:52,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 993. [2023-11-23 22:35:52,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 802 states have (on average 1.2007481296758105) internal successors, (963), 815 states have internal predecessors, (963), 175 states have call successors, (175), 2 states have call predecessors, (175), 2 states have return successors, (175), 175 states have call predecessors, (175), 175 states have call successors, (175) [2023-11-23 22:35:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1313 transitions. [2023-11-23 22:35:52,960 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1313 transitions. Word has length 103 [2023-11-23 22:35:52,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:52,961 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1313 transitions. [2023-11-23 22:35:52,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-23 22:35:52,961 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1313 transitions. [2023-11-23 22:35:52,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-23 22:35:52,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:52,964 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:52,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:53,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-23 22:35:53,188 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:53,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:53,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1163676672, now seen corresponding path program 1 times [2023-11-23 22:35:53,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:53,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531082563] [2023-11-23 22:35:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:53,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:53,207 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:53,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382219761] [2023-11-23 22:35:53,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:53,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:53,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:53,209 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:53,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-23 22:35:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:53,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 22:35:53,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:53,977 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-23 22:35:53,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:54,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:54,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531082563] [2023-11-23 22:35:54,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:54,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382219761] [2023-11-23 22:35:54,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382219761] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:35:54,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:35:54,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-23 22:35:54,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554256684] [2023-11-23 22:35:54,178 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:35:54,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 22:35:54,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:54,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 22:35:54,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:35:54,180 INFO L87 Difference]: Start difference. First operand 993 states and 1313 transitions. Second operand has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-23 22:35:55,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:55,317 INFO L93 Difference]: Finished difference Result 1085 states and 1418 transitions. [2023-11-23 22:35:55,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 22:35:55,317 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) Word has length 112 [2023-11-23 22:35:55,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:55,326 INFO L225 Difference]: With dead ends: 1085 [2023-11-23 22:35:55,326 INFO L226 Difference]: Without dead ends: 1082 [2023-11-23 22:35:55,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2023-11-23 22:35:55,334 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 218 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:55,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 375 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:35:55,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2023-11-23 22:35:55,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1058. [2023-11-23 22:35:55,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 855 states have (on average 1.2011695906432749) internal successors, (1027), 868 states have internal predecessors, (1027), 187 states have call successors, (187), 2 states have call predecessors, (187), 2 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) [2023-11-23 22:35:55,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1401 transitions. [2023-11-23 22:35:55,615 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1401 transitions. Word has length 112 [2023-11-23 22:35:55,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:55,616 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1401 transitions. [2023-11-23 22:35:55,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-23 22:35:55,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1401 transitions. [2023-11-23 22:35:55,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-23 22:35:55,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:55,619 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:55,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:55,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-23 22:35:55,833 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:55,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:55,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1714238409, now seen corresponding path program 1 times [2023-11-23 22:35:55,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:55,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779277121] [2023-11-23 22:35:55,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:55,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:55,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:55,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972751140] [2023-11-23 22:35:55,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:55,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:55,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:55,845 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:55,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-23 22:35:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:55,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 22:35:55,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:56,602 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-23 22:35:56,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:56,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:56,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779277121] [2023-11-23 22:35:56,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:56,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972751140] [2023-11-23 22:35:56,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972751140] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:35:56,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:35:56,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-23 22:35:56,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205727669] [2023-11-23 22:35:56,813 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:35:56,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 22:35:56,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:56,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 22:35:56,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:35:56,816 INFO L87 Difference]: Start difference. First operand 1058 states and 1401 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-23 22:35:57,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:57,869 INFO L93 Difference]: Finished difference Result 1082 states and 1411 transitions. [2023-11-23 22:35:57,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 22:35:57,869 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) Word has length 113 [2023-11-23 22:35:57,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:57,899 INFO L225 Difference]: With dead ends: 1082 [2023-11-23 22:35:57,900 INFO L226 Difference]: Without dead ends: 1081 [2023-11-23 22:35:57,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2023-11-23 22:35:57,905 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 186 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:57,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 421 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:35:57,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2023-11-23 22:35:58,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1058. [2023-11-23 22:35:58,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 855 states have (on average 1.2) internal successors, (1026), 868 states have internal predecessors, (1026), 187 states have call successors, (187), 2 states have call predecessors, (187), 2 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) [2023-11-23 22:35:58,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1400 transitions. [2023-11-23 22:35:58,102 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1400 transitions. Word has length 113 [2023-11-23 22:35:58,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:58,102 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1400 transitions. [2023-11-23 22:35:58,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-23 22:35:58,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1400 transitions. [2023-11-23 22:35:58,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-23 22:35:58,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:58,105 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:58,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:58,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-23 22:35:58,320 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:58,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:58,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1601783070, now seen corresponding path program 1 times [2023-11-23 22:35:58,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:58,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060259841] [2023-11-23 22:35:58,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:58,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:58,333 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:58,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979988130] [2023-11-23 22:35:58,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:58,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:58,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:58,336 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:58,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-23 22:35:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:58,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:35:58,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:58,528 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-23 22:35:58,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:58,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:58,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060259841] [2023-11-23 22:35:58,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:58,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979988130] [2023-11-23 22:35:58,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979988130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:58,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:58,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:35:58,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875978734] [2023-11-23 22:35:58,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:58,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:35:58,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:58,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:35:58,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:35:58,532 INFO L87 Difference]: Start difference. First operand 1058 states and 1400 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-23 22:35:59,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:59,067 INFO L93 Difference]: Finished difference Result 1095 states and 1432 transitions. [2023-11-23 22:35:59,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:35:59,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 114 [2023-11-23 22:35:59,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:59,076 INFO L225 Difference]: With dead ends: 1095 [2023-11-23 22:35:59,077 INFO L226 Difference]: Without dead ends: 1086 [2023-11-23 22:35:59,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:35:59,078 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 84 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:59,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 323 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:35:59,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2023-11-23 22:35:59,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 650. [2023-11-23 22:35:59,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 526 states have (on average 1.138783269961977) internal successors, (599), 534 states have internal predecessors, (599), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-23 22:35:59,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 825 transitions. [2023-11-23 22:35:59,281 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 825 transitions. Word has length 114 [2023-11-23 22:35:59,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:59,281 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 825 transitions. [2023-11-23 22:35:59,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-23 22:35:59,283 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 825 transitions. [2023-11-23 22:35:59,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 22:35:59,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:59,286 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:59,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:59,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-23 22:35:59,510 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:35:59,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:59,511 INFO L85 PathProgramCache]: Analyzing trace with hash -685818489, now seen corresponding path program 2 times [2023-11-23 22:35:59,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:59,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842651658] [2023-11-23 22:35:59,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:59,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:59,524 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:59,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1105575585] [2023-11-23 22:35:59,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:35:59,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:59,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:59,526 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:59,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-23 22:35:59,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:35:59,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:35:59,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 22:35:59,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:59,857 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 67 proven. 3 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-23 22:35:59,857 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:36:00,151 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-23 22:36:00,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:00,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842651658] [2023-11-23 22:36:00,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:36:00,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105575585] [2023-11-23 22:36:00,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105575585] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:36:00,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:36:00,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-11-23 22:36:00,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133972537] [2023-11-23 22:36:00,152 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:36:00,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 22:36:00,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:00,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 22:36:00,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:36:00,155 INFO L87 Difference]: Start difference. First operand 650 states and 825 transitions. Second operand has 15 states, 15 states have (on average 6.8) internal successors, (102), 13 states have internal predecessors, (102), 10 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (26), 11 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-23 22:36:00,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:36:00,612 INFO L93 Difference]: Finished difference Result 696 states and 873 transitions. [2023-11-23 22:36:00,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:36:00,613 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.8) internal successors, (102), 13 states have internal predecessors, (102), 10 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (26), 11 states have call predecessors, (26), 10 states have call successors, (26) Word has length 115 [2023-11-23 22:36:00,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:36:00,616 INFO L225 Difference]: With dead ends: 696 [2023-11-23 22:36:00,616 INFO L226 Difference]: Without dead ends: 305 [2023-11-23 22:36:00,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-23 22:36:00,620 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 174 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:36:00,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 340 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:36:00,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-11-23 22:36:00,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 266. [2023-11-23 22:36:00,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 213 states have (on average 1.0469483568075117) internal successors, (223), 215 states have internal predecessors, (223), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-23 22:36:00,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 319 transitions. [2023-11-23 22:36:00,693 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 319 transitions. Word has length 115 [2023-11-23 22:36:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:36:00,693 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 319 transitions. [2023-11-23 22:36:00,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.8) internal successors, (102), 13 states have internal predecessors, (102), 10 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (26), 11 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-23 22:36:00,694 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 319 transitions. [2023-11-23 22:36:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-23 22:36:00,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:36:00,697 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:00,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-23 22:36:00,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-23 22:36:00,915 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:36:00,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:00,916 INFO L85 PathProgramCache]: Analyzing trace with hash -770695640, now seen corresponding path program 2 times [2023-11-23 22:36:00,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:00,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219519969] [2023-11-23 22:36:00,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:00,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:00,936 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:36:00,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1427072309] [2023-11-23 22:36:00,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:36:00,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:36:00,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:36:00,940 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:36:00,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-23 22:36:01,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:36:01,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:36:01,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:36:01,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:36:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-23 22:36:01,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:36:01,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:01,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219519969] [2023-11-23 22:36:01,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:36:01,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427072309] [2023-11-23 22:36:01,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427072309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:36:01,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:36:01,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:36:01,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559905524] [2023-11-23 22:36:01,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:36:01,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:36:01,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:01,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:36:01,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:36:01,117 INFO L87 Difference]: Start difference. First operand 266 states and 319 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-23 22:36:01,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:36:01,289 INFO L93 Difference]: Finished difference Result 343 states and 407 transitions. [2023-11-23 22:36:01,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:36:01,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2023-11-23 22:36:01,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:36:01,292 INFO L225 Difference]: With dead ends: 343 [2023-11-23 22:36:01,292 INFO L226 Difference]: Without dead ends: 181 [2023-11-23 22:36:01,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:36:01,294 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 24 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:36:01,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 111 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:36:01,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-23 22:36:01,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 178. [2023-11-23 22:36:01,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 142 states have (on average 1.0492957746478873) internal successors, (149), 144 states have internal predecessors, (149), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-23 22:36:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 211 transitions. [2023-11-23 22:36:01,340 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 211 transitions. Word has length 122 [2023-11-23 22:36:01,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:36:01,341 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 211 transitions. [2023-11-23 22:36:01,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-23 22:36:01,341 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 211 transitions. [2023-11-23 22:36:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-23 22:36:01,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:36:01,345 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:01,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-23 22:36:01,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-23 22:36:01,567 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-23 22:36:01,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:01,568 INFO L85 PathProgramCache]: Analyzing trace with hash -568005725, now seen corresponding path program 2 times [2023-11-23 22:36:01,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:01,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193395570] [2023-11-23 22:36:01,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:01,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:01,583 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:36:01,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648686899] [2023-11-23 22:36:01,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:36:01,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:36:01,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:36:01,586 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:36:01,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-23 22:36:01,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:36:01,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:36:01,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 22:36:01,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:36:02,026 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 226 proven. 19 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-23 22:36:02,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:36:02,489 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 40 proven. 29 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-23 22:36:02,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:02,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193395570] [2023-11-23 22:36:02,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:36:02,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648686899] [2023-11-23 22:36:02,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648686899] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:36:02,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:36:02,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2023-11-23 22:36:02,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327710651] [2023-11-23 22:36:02,491 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:36:02,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-23 22:36:02,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:02,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-23 22:36:02,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-11-23 22:36:02,494 INFO L87 Difference]: Start difference. First operand 178 states and 211 transitions. Second operand has 17 states, 17 states have (on average 7.823529411764706) internal successors, (133), 17 states have internal predecessors, (133), 12 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (36), 11 states have call predecessors, (36), 12 states have call successors, (36) [2023-11-23 22:36:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:36:02,876 INFO L93 Difference]: Finished difference Result 182 states and 214 transitions. [2023-11-23 22:36:02,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:36:02,877 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.823529411764706) internal successors, (133), 17 states have internal predecessors, (133), 12 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (36), 11 states have call predecessors, (36), 12 states have call successors, (36) Word has length 159 [2023-11-23 22:36:02,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:36:02,877 INFO L225 Difference]: With dead ends: 182 [2023-11-23 22:36:02,878 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 22:36:02,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2023-11-23 22:36:02,879 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 66 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:36:02,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 249 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:36:02,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 22:36:02,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 22:36:02,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-11-23 22:36:02,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 22:36:02,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 159 [2023-11-23 22:36:02,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:36:02,882 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:36:02,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.823529411764706) internal successors, (133), 17 states have internal predecessors, (133), 12 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (36), 11 states have call predecessors, (36), 12 states have call successors, (36) [2023-11-23 22:36:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:36:02,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 22:36:02,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 30 remaining) [2023-11-23 22:36:02,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 30 remaining) [2023-11-23 22:36:02,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 30 remaining) [2023-11-23 22:36:02,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 30 remaining) [2023-11-23 22:36:02,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 30 remaining) [2023-11-23 22:36:02,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 30 remaining) [2023-11-23 22:36:02,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 30 remaining) [2023-11-23 22:36:02,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 30 remaining) [2023-11-23 22:36:02,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 30 remaining) [2023-11-23 22:36:02,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 30 remaining) [2023-11-23 22:36:02,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 30 remaining) [2023-11-23 22:36:02,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 30 remaining) [2023-11-23 22:36:02,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 30 remaining) [2023-11-23 22:36:02,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 30 remaining) [2023-11-23 22:36:02,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 30 remaining) [2023-11-23 22:36:02,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 30 remaining) [2023-11-23 22:36:02,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 30 remaining) [2023-11-23 22:36:02,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 30 remaining) [2023-11-23 22:36:02,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 30 remaining) [2023-11-23 22:36:02,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 30 remaining) [2023-11-23 22:36:02,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 30 remaining) [2023-11-23 22:36:02,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 30 remaining) [2023-11-23 22:36:02,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 30 remaining) [2023-11-23 22:36:02,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 30 remaining) [2023-11-23 22:36:02,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 30 remaining) [2023-11-23 22:36:02,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 30 remaining) [2023-11-23 22:36:02,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 30 remaining) [2023-11-23 22:36:02,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 30 remaining) [2023-11-23 22:36:02,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 30 remaining) [2023-11-23 22:36:02,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 30 remaining) [2023-11-23 22:36:02,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-23 22:36:03,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:36:03,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 22:36:04,373 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-23 22:36:04,373 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2023-11-23 22:36:04,374 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) [2023-11-23 22:36:04,374 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-11-23 22:36:04,374 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-11-23 22:36:04,374 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 52 53) no Hoare annotation was computed. [2023-11-23 22:36:04,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-11-23 22:36:04,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-23 22:36:04,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-23 22:36:04,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-23 22:36:04,375 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-11-23 22:36:04,375 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2023-11-23 22:36:04,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-23 22:36:04,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-11-23 22:36:04,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-23 22:36:04,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-23 22:36:04,376 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-11-23 22:36:04,376 INFO L895 garLoopResultBuilder]: At program point L29-1(line 29) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-11-23 22:36:04,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-23 22:36:04,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-11-23 22:36:04,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-23 22:36:04,376 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 22:36:04,376 INFO L895 garLoopResultBuilder]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse3 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse2 (= |ULTIMATE.start_main_~q~0#1| 1) .cse3) (and .cse0 .cse2 (= |ULTIMATE.start_main_~y~0#1| 1) (= 2 |ULTIMATE.start_main_~q~0#1|) (= 2 |ULTIMATE.start_main_~b~0#1|) (= 2 |ULTIMATE.start_main_~a~0#1|) .cse3) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 1073741823) (<= |ULTIMATE.start_main_~r~0#1| 2) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| 0) (<= 0 (+ 1073741824 |ULTIMATE.start_main_~b~0#1|)) .cse3 (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648))))) [2023-11-23 22:36:04,377 INFO L899 garLoopResultBuilder]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2023-11-23 22:36:04,377 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-11-23 22:36:04,377 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2023-11-23 22:36:04,377 INFO L899 garLoopResultBuilder]: For program point L55-1(line 55) no Hoare annotation was computed. [2023-11-23 22:36:04,377 INFO L899 garLoopResultBuilder]: For program point L55-2(line 55) no Hoare annotation was computed. [2023-11-23 22:36:04,377 INFO L899 garLoopResultBuilder]: For program point L55-3(line 55) no Hoare annotation was computed. [2023-11-23 22:36:04,377 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 64) no Hoare annotation was computed. [2023-11-23 22:36:04,377 INFO L895 garLoopResultBuilder]: At program point L55-4(line 55) the Hoare annotation is: (and (= |ULTIMATE.start_main_~b~0#1| 1) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~y~0#1| 1) (= 2 |ULTIMATE.start_main_~r~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-11-23 22:36:04,378 INFO L899 garLoopResultBuilder]: For program point L55-5(line 55) no Hoare annotation was computed. [2023-11-23 22:36:04,378 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 59) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse2 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse0 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 2) (= |ULTIMATE.start_main_~a~0#1| 1) (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse1 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) .cse2) (and .cse0 .cse1 (= |ULTIMATE.start_main_~y~0#1| 1) (= 2 |ULTIMATE.start_main_~b~0#1|) (= 2 |ULTIMATE.start_main_~a~0#1|) (= 2 |ULTIMATE.start_main_~r~0#1|) .cse2))) [2023-11-23 22:36:04,378 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2023-11-23 22:36:04,378 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-23 22:36:04,378 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-11-23 22:36:04,378 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2023-11-23 22:36:04,379 INFO L895 garLoopResultBuilder]: At program point L39-2(line 39) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse3 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse2 (= |ULTIMATE.start_main_~q~0#1| 1) .cse3) (and .cse0 .cse2 (= |ULTIMATE.start_main_~y~0#1| 1) (= 2 |ULTIMATE.start_main_~q~0#1|) (= 2 |ULTIMATE.start_main_~b~0#1|) (= 2 |ULTIMATE.start_main_~a~0#1|) .cse3) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 1073741823) (<= |ULTIMATE.start_main_~a~0#1| 1) (<= |ULTIMATE.start_main_~r~0#1| 2) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 0 (+ 1073741824 |ULTIMATE.start_main_~b~0#1|)) .cse3 (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648))))) [2023-11-23 22:36:04,381 INFO L899 garLoopResultBuilder]: For program point L39-3(line 39) no Hoare annotation was computed. [2023-11-23 22:36:04,381 INFO L899 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2023-11-23 22:36:04,381 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-11-23 22:36:04,382 INFO L899 garLoopResultBuilder]: For program point L64-1(line 64) no Hoare annotation was computed. [2023-11-23 22:36:04,382 INFO L899 garLoopResultBuilder]: For program point L64-2(line 64) no Hoare annotation was computed. [2023-11-23 22:36:04,382 INFO L902 garLoopResultBuilder]: At program point L64-3(line 64) the Hoare annotation is: true [2023-11-23 22:36:04,382 INFO L899 garLoopResultBuilder]: For program point L64-4(line 64) no Hoare annotation was computed. [2023-11-23 22:36:04,382 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2023-11-23 22:36:04,383 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 64) no Hoare annotation was computed. [2023-11-23 22:36:04,383 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-11-23 22:36:04,383 INFO L899 garLoopResultBuilder]: For program point L48-1(line 48) no Hoare annotation was computed. [2023-11-23 22:36:04,383 INFO L895 garLoopResultBuilder]: At program point L48-2(line 48) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse2 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse0 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 2) (= |ULTIMATE.start_main_~a~0#1| 1) (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse1 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) .cse2) (and .cse0 .cse1 (= |ULTIMATE.start_main_~y~0#1| 1) (= 2 |ULTIMATE.start_main_~b~0#1|) (= 2 |ULTIMATE.start_main_~a~0#1|) (= 2 |ULTIMATE.start_main_~r~0#1|) .cse2))) [2023-11-23 22:36:04,384 INFO L899 garLoopResultBuilder]: For program point L48-3(line 48) no Hoare annotation was computed. [2023-11-23 22:36:04,384 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-23 22:36:04,384 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-23 22:36:04,384 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2023-11-23 22:36:04,384 INFO L899 garLoopResultBuilder]: For program point L40-2(line 40) no Hoare annotation was computed. [2023-11-23 22:36:04,385 INFO L895 garLoopResultBuilder]: At program point L40-3(line 40) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_main_~y~0#1| 1)) (.cse3 (= 2 |ULTIMATE.start_main_~a~0#1|)) (.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse5 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse6 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse1 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse4 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse0 .cse1 .cse2 (= 2 |ULTIMATE.start_main_~q~0#1|) (= 2 |ULTIMATE.start_main_~b~0#1|) .cse3 .cse4) (and .cse0 .cse5 (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 1073741823) (<= |ULTIMATE.start_main_~a~0#1| 1) (<= |ULTIMATE.start_main_~r~0#1| 2) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 0 (+ 1073741824 |ULTIMATE.start_main_~b~0#1|)) .cse4 (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648))) (and .cse0 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse6 (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) .cse1 .cse2 (<= 0 |ULTIMATE.start_main_~q~0#1|) .cse3 .cse4) (and .cse0 (<= 1 |ULTIMATE.start_main_~q~0#1|) .cse5 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) .cse6 .cse1 (<= (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) .cse4))) [2023-11-23 22:36:04,385 INFO L899 garLoopResultBuilder]: For program point L40-4(lines 38 62) no Hoare annotation was computed. [2023-11-23 22:36:04,385 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-23 22:36:04,385 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-11-23 22:36:04,386 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 64) no Hoare annotation was computed. [2023-11-23 22:36:04,386 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-23 22:36:04,386 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-23 22:36:04,386 INFO L899 garLoopResultBuilder]: For program point L49-1(line 49) no Hoare annotation was computed. [2023-11-23 22:36:04,386 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2023-11-23 22:36:04,387 INFO L899 garLoopResultBuilder]: For program point L49-2(line 49) no Hoare annotation was computed. [2023-11-23 22:36:04,387 INFO L895 garLoopResultBuilder]: At program point L49-3(line 49) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse2 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse0 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 2) (= |ULTIMATE.start_main_~a~0#1| 1) (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse1 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) .cse2) (and .cse0 .cse1 (= |ULTIMATE.start_main_~y~0#1| 1) (= 2 |ULTIMATE.start_main_~b~0#1|) (= 2 |ULTIMATE.start_main_~a~0#1|) (= 2 |ULTIMATE.start_main_~r~0#1|) .cse2))) [2023-11-23 22:36:04,387 INFO L895 garLoopResultBuilder]: At program point L49-4(line 49) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse2 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse0 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 2) (= |ULTIMATE.start_main_~a~0#1| 1) (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse1 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) .cse2) (and .cse0 .cse1 (= |ULTIMATE.start_main_~y~0#1| 1) (= 2 |ULTIMATE.start_main_~b~0#1|) (= 2 |ULTIMATE.start_main_~a~0#1|) (= 2 |ULTIMATE.start_main_~r~0#1|) .cse2))) [2023-11-23 22:36:04,387 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 22:36:04,388 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-23 22:36:04,388 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-11-23 22:36:04,388 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-23 22:36:04,388 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 64) no Hoare annotation was computed. [2023-11-23 22:36:04,388 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-23 22:36:04,389 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-23 22:36:04,389 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2023-11-23 22:36:04,389 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-11-23 22:36:04,389 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-23 22:36:04,389 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-23 22:36:04,389 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-23 22:36:04,390 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-23 22:36:04,390 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 13) no Hoare annotation was computed. [2023-11-23 22:36:04,390 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 13) the Hoare annotation is: true [2023-11-23 22:36:04,390 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2023-11-23 22:36:04,390 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2023-11-23 22:36:04,391 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2023-11-23 22:36:04,391 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-11-23 22:36:04,391 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-11-23 22:36:04,395 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:04,398 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:36:04,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:36:04 BoogieIcfgContainer [2023-11-23 22:36:04,425 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:36:04,426 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:36:04,426 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:36:04,426 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:36:04,427 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:29" (3/4) ... [2023-11-23 22:36:04,430 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:36:04,435 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-23 22:36:04,436 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-23 22:36:04,448 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-23 22:36:04,448 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 22:36:04,449 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 22:36:04,449 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:36:04,601 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:36:04,602 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:36:04,602 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:36:04,603 INFO L158 Benchmark]: Toolchain (without parser) took 36029.33ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 140.4MB in the beginning and 187.3MB in the end (delta: -46.9MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,604 INFO L158 Benchmark]: CDTParser took 9.78ms. Allocated memory is still 132.1MB. Free memory was 104.7MB in the beginning and 104.6MB in the end (delta: 139.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.22ms. Allocated memory is still 169.9MB. Free memory was 140.2MB in the beginning and 133.1MB in the end (delta: 7.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.36ms. Allocated memory is still 169.9MB. Free memory was 133.1MB in the beginning and 131.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,611 INFO L158 Benchmark]: Boogie Preprocessor took 50.85ms. Allocated memory is still 169.9MB. Free memory was 131.7MB in the beginning and 129.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,612 INFO L158 Benchmark]: RCFGBuilder took 727.37ms. Allocated memory is still 169.9MB. Free memory was 129.7MB in the beginning and 113.7MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,615 INFO L158 Benchmark]: TraceAbstraction took 34711.07ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 112.9MB in the beginning and 192.6MB in the end (delta: -79.7MB). Peak memory consumption was 151.8MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,616 INFO L158 Benchmark]: Witness Printer took 176.65ms. Allocated memory is still 297.8MB. Free memory was 192.6MB in the beginning and 187.3MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,618 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 9.78ms. Allocated memory is still 132.1MB. Free memory was 104.7MB in the beginning and 104.6MB in the end (delta: 139.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.22ms. Allocated memory is still 169.9MB. Free memory was 140.2MB in the beginning and 133.1MB in the end (delta: 7.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.36ms. Allocated memory is still 169.9MB. Free memory was 133.1MB in the beginning and 131.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.85ms. Allocated memory is still 169.9MB. Free memory was 131.7MB in the beginning and 129.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 727.37ms. Allocated memory is still 169.9MB. Free memory was 129.7MB in the beginning and 113.7MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 34711.07ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 112.9MB in the beginning and 192.6MB in the end (delta: -79.7MB). Peak memory consumption was 151.8MB. Max. memory is 16.1GB. * Witness Printer took 176.65ms. Allocated memory is still 297.8MB. Free memory was 192.6MB in the beginning and 187.3MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 87 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 34.6s, OverallIterations: 30, TraceHistogramMax: 15, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4397 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4254 mSDsluCounter, 6310 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4321 mSDsCounter, 496 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6699 IncrementalHoareTripleChecker+Invalid, 7195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 496 mSolverCounterUnsat, 1989 mSDtfsCounter, 6699 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3072 GetRequests, 2828 SyntacticMatches, 2 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1058occurred in iteration=25, InterpolantAutomatonStates: 208, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 30 MinimizatonAttempts, 1557 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 146 PreInvPairs, 168 NumberOfFragments, 536 HoareAnnotationTreeSize, 146 FomulaSimplifications, 7405 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 14 FomulaSimplificationsInter, 385 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 2246 NumberOfCodeBlocks, 2246 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 2900 ConstructedInterpolants, 0 QuantifiedInterpolants, 10176 SizeOfPredicates, 57 NumberOfNonLiveVariables, 4412 ConjunctsInSsa, 196 ConjunctsInUnsatCore, 37 InterpolantComputations, 17 PerfectInterpolantSequences, 4322/4562 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 30 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((((((((0 <= x) && (b == y)) && (r <= 2)) && (a == 1)) && (1 <= b)) && (q == 0)) && (y <= r)) && (x <= 2)) || (((((((0 <= x) && (q == 0)) && (y == 1)) && (2 == b)) && (2 == a)) && (2 == r)) && (x <= 2))) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((((((((0 <= x) && (y <= 2)) && (b == y)) && (a == 1)) && (1 <= b)) && (r == 0)) && (q == 1)) && (x <= 2)) || (((((((0 <= x) && (r == 0)) && (y == 1)) && (2 == q)) && (2 == b)) && (2 == a)) && (x <= 2))) || ((((((((((0 <= x) && (y <= 2)) && (1 <= y)) && (b <= 1073741823)) && (r <= 2)) && (q == 0)) && (a == 0)) && (0 <= (1073741824 + b))) && (x <= 2)) && (0 <= (r + 2147483648)))) RESULT: Ultimate proved your program to be correct! [2023-11-23 22:36:04,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08781282-acaa-484f-a09c-c0bd7b645e7d/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE