./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx --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 f5dead2b097a3e2aa15cd919ca1c3a66944ae841df5c6a1b5b64a326ca5f0b4a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:22:33,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:22:33,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 22:22:33,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:22:33,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:22:33,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:22:33,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:22:33,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:22:33,370 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:22:33,376 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:22:33,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:22:33,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:22:33,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:22:33,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:22:33,381 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:22:33,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:22:33,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:22:33,383 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:22:33,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:22:33,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:22:33,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:22:33,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:22:33,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:22:33,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:22:33,387 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:22:33,387 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:22:33,388 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:22:33,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:22:33,389 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:22:33,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:22:33,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:22:33,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:22:33,392 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:22:33,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:22:33,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:22:33,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:22:33,393 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:22:33,393 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:22:33,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:22:33,394 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:22:33,394 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:22:33,394 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:22:33,395 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:22:33,395 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:22:33,396 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_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5dead2b097a3e2aa15cd919ca1c3a66944ae841df5c6a1b5b64a326ca5f0b4a [2023-11-21 22:22:33,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:22:33,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:22:33,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:22:33,764 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:22:33,765 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:22:33,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c [2023-11-21 22:22:36,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:22:37,194 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:22:37,195 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c [2023-11-21 22:22:37,204 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/data/1ed773c8f/480c877fb538442cb143700adfd88d7e/FLAG6855c3876 [2023-11-21 22:22:37,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/data/1ed773c8f/480c877fb538442cb143700adfd88d7e [2023-11-21 22:22:37,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:22:37,230 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:22:37,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:22:37,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:22:37,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:22:37,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f09798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37, skipping insertion in model container [2023-11-21 22:22:37,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,266 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:22:37,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:22:37,518 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:22:37,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:22:37,590 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:22:37,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37 WrapperNode [2023-11-21 22:22:37,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:22:37,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:22:37,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:22:37,592 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:22:37,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,661 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 121 [2023-11-21 22:22:37,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:22:37,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:22:37,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:22:37,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:22:37,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,679 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,703 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:22:37,703 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:22:37,729 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:22:37,729 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:22:37,729 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:22:37,732 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (1/1) ... [2023-11-21 22:22:37,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:22:37,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:37,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:22:37,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:22:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:22:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:22:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:22:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:22:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:22:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:22:37,898 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:22:37,900 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:22:38,441 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:22:38,478 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:22:38,478 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:22:38,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:38 BoogieIcfgContainer [2023-11-21 22:22:38,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:22:38,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:22:38,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:22:38,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:22:38,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:22:37" (1/3) ... [2023-11-21 22:22:38,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18978a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:22:38, skipping insertion in model container [2023-11-21 22:22:38,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:37" (2/3) ... [2023-11-21 22:22:38,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18978a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:22:38, skipping insertion in model container [2023-11-21 22:22:38,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:38" (3/3) ... [2023-11-21 22:22:38,490 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_unwindbound1.c [2023-11-21 22:22:38,511 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:22:38,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2023-11-21 22:22:38,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:22:38,576 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;@1d4fea0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:22:38,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-21 22:22:38,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 68 states have (on average 1.9411764705882353) internal successors, (132), 128 states have internal predecessors, (132), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:22:38,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:22:38,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:38,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:22:38,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:38,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:38,594 INFO L85 PathProgramCache]: Analyzing trace with hash 6296, now seen corresponding path program 1 times [2023-11-21 22:22:38,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:38,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256487129] [2023-11-21 22:22:38,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:38,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:38,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:38,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256487129] [2023-11-21 22:22:38,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256487129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:38,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:38,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:22:38,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700579478] [2023-11-21 22:22:38,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:38,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:38,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:38,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:38,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:38,883 INFO L87 Difference]: Start difference. First operand has 132 states, 68 states have (on average 1.9411764705882353) internal successors, (132), 128 states have internal predecessors, (132), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 22:22:39,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:39,072 INFO L93 Difference]: Finished difference Result 180 states and 184 transitions. [2023-11-21 22:22:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:39,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2023-11-21 22:22:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:39,088 INFO L225 Difference]: With dead ends: 180 [2023-11-21 22:22:39,088 INFO L226 Difference]: Without dead ends: 125 [2023-11-21 22:22:39,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:39,097 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 124 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:39,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 70 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:39,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-21 22:22:39,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2023-11-21 22:22:39,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 67 states have (on average 1.8656716417910448) internal successors, (125), 122 states have internal predecessors, (125), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:39,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2023-11-21 22:22:39,164 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 2 [2023-11-21 22:22:39,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:39,166 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2023-11-21 22:22:39,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 22:22:39,168 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2023-11-21 22:22:39,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:22:39,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:39,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:22:39,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:22:39,172 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:39,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:39,173 INFO L85 PathProgramCache]: Analyzing trace with hash 195212, now seen corresponding path program 1 times [2023-11-21 22:22:39,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:39,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938900369] [2023-11-21 22:22:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:39,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:39,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:39,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938900369] [2023-11-21 22:22:39,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938900369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:39,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:39,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:22:39,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562309989] [2023-11-21 22:22:39,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:39,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:39,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:39,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:39,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:39,251 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-21 22:22:39,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:39,359 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2023-11-21 22:22:39,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:39,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2023-11-21 22:22:39,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:39,362 INFO L225 Difference]: With dead ends: 125 [2023-11-21 22:22:39,362 INFO L226 Difference]: Without dead ends: 121 [2023-11-21 22:22:39,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:39,364 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 118 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:39,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 67 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:39,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-21 22:22:39,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-11-21 22:22:39,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 67 states have (on average 1.8059701492537314) internal successors, (121), 118 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:39,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 123 transitions. [2023-11-21 22:22:39,376 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 123 transitions. Word has length 3 [2023-11-21 22:22:39,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:39,377 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 123 transitions. [2023-11-21 22:22:39,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-21 22:22:39,377 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 123 transitions. [2023-11-21 22:22:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:22:39,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:39,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:22:39,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:22:39,379 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:39,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:39,380 INFO L85 PathProgramCache]: Analyzing trace with hash 6051610, now seen corresponding path program 1 times [2023-11-21 22:22:39,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:39,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736364301] [2023-11-21 22:22:39,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:39,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:39,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:39,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736364301] [2023-11-21 22:22:39,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736364301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:39,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:39,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:22:39,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596736499] [2023-11-21 22:22:39,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:39,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:39,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:39,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:39,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:39,432 INFO L87 Difference]: Start difference. First operand 121 states and 123 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-21 22:22:39,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:39,544 INFO L93 Difference]: Finished difference Result 121 states and 123 transitions. [2023-11-21 22:22:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:39,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2023-11-21 22:22:39,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:39,546 INFO L225 Difference]: With dead ends: 121 [2023-11-21 22:22:39,547 INFO L226 Difference]: Without dead ends: 120 [2023-11-21 22:22:39,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:39,549 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 116 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:39,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 53 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:39,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-21 22:22:39,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-11-21 22:22:39,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.791044776119403) internal successors, (120), 117 states have internal predecessors, (120), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:39,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 122 transitions. [2023-11-21 22:22:39,561 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 122 transitions. Word has length 4 [2023-11-21 22:22:39,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:39,561 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 122 transitions. [2023-11-21 22:22:39,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-21 22:22:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 122 transitions. [2023-11-21 22:22:39,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 22:22:39,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:39,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 22:22:39,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:22:39,563 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:39,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:39,564 INFO L85 PathProgramCache]: Analyzing trace with hash 187599950, now seen corresponding path program 1 times [2023-11-21 22:22:39,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:39,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034009512] [2023-11-21 22:22:39,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:39,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:39,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:39,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:39,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034009512] [2023-11-21 22:22:39,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034009512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:39,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:39,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:22:39,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111711435] [2023-11-21 22:22:39,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:39,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:39,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:39,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:39,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:39,610 INFO L87 Difference]: Start difference. First operand 120 states and 122 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-21 22:22:39,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:39,712 INFO L93 Difference]: Finished difference Result 120 states and 122 transitions. [2023-11-21 22:22:39,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:39,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2023-11-21 22:22:39,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:39,714 INFO L225 Difference]: With dead ends: 120 [2023-11-21 22:22:39,714 INFO L226 Difference]: Without dead ends: 119 [2023-11-21 22:22:39,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:39,726 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 114 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:39,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 53 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:39,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-21 22:22:39,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2023-11-21 22:22:39,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 67 states have (on average 1.7761194029850746) internal successors, (119), 116 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:39,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2023-11-21 22:22:39,738 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 5 [2023-11-21 22:22:39,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:39,738 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2023-11-21 22:22:39,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-21 22:22:39,738 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2023-11-21 22:22:39,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:22:39,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:39,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:39,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:22:39,742 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:39,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:39,743 INFO L85 PathProgramCache]: Analyzing trace with hash -105073040, now seen corresponding path program 1 times [2023-11-21 22:22:39,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:39,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524328401] [2023-11-21 22:22:39,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:39,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:39,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:39,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524328401] [2023-11-21 22:22:39,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524328401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:39,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:39,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:39,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990116991] [2023-11-21 22:22:39,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:39,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:39,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:39,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:39,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:39,859 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-21 22:22:39,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:39,908 INFO L93 Difference]: Finished difference Result 167 states and 169 transitions. [2023-11-21 22:22:39,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:22:39,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2023-11-21 22:22:39,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:39,910 INFO L225 Difference]: With dead ends: 167 [2023-11-21 22:22:39,910 INFO L226 Difference]: Without dead ends: 123 [2023-11-21 22:22:39,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:39,912 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 4 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:39,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 339 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:22:39,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-21 22:22:39,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-11-21 22:22:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 71 states have (on average 1.732394366197183) internal successors, (123), 120 states have internal predecessors, (123), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:39,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 125 transitions. [2023-11-21 22:22:39,966 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 125 transitions. Word has length 7 [2023-11-21 22:22:39,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:39,966 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 125 transitions. [2023-11-21 22:22:39,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-21 22:22:39,966 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 125 transitions. [2023-11-21 22:22:39,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 22:22:39,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:39,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:39,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:22:39,968 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:39,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:39,968 INFO L85 PathProgramCache]: Analyzing trace with hash 800272963, now seen corresponding path program 1 times [2023-11-21 22:22:39,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:39,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797119888] [2023-11-21 22:22:39,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:39,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:40,015 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:40,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1282831034] [2023-11-21 22:22:40,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:40,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:40,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:40,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:40,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:22:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:40,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:22:40,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:40,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:40,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:40,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:40,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797119888] [2023-11-21 22:22:40,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:40,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282831034] [2023-11-21 22:22:40,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282831034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:40,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:40,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:40,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321444767] [2023-11-21 22:22:40,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:40,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:40,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:40,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:40,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:40,123 INFO L87 Difference]: Start difference. First operand 123 states and 125 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-21 22:22:40,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:40,179 INFO L93 Difference]: Finished difference Result 229 states and 233 transitions. [2023-11-21 22:22:40,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:40,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2023-11-21 22:22:40,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:40,182 INFO L225 Difference]: With dead ends: 229 [2023-11-21 22:22:40,182 INFO L226 Difference]: Without dead ends: 223 [2023-11-21 22:22:40,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:40,184 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 99 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:40,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 212 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:22:40,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-21 22:22:40,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 147. [2023-11-21 22:22:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 94 states have (on average 1.7127659574468086) internal successors, (161), 143 states have internal predecessors, (161), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:22:40,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 165 transitions. [2023-11-21 22:22:40,202 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 165 transitions. Word has length 10 [2023-11-21 22:22:40,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:40,203 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 165 transitions. [2023-11-21 22:22:40,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-21 22:22:40,203 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 165 transitions. [2023-11-21 22:22:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 22:22:40,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:40,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:40,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-21 22:22:40,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:40,429 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:40,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:40,430 INFO L85 PathProgramCache]: Analyzing trace with hash 263173317, now seen corresponding path program 1 times [2023-11-21 22:22:40,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:40,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183140816] [2023-11-21 22:22:40,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:40,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:40,439 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:40,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [790972258] [2023-11-21 22:22:40,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:40,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:40,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:40,442 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:40,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:22:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:40,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:22:40,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:40,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:40,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:40,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:40,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183140816] [2023-11-21 22:22:40,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:40,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790972258] [2023-11-21 22:22:40,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790972258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:40,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:40,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:40,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170766711] [2023-11-21 22:22:40,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:40,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:40,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:40,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:40,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:40,507 INFO L87 Difference]: Start difference. First operand 147 states and 165 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-21 22:22:40,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:40,563 INFO L93 Difference]: Finished difference Result 259 states and 280 transitions. [2023-11-21 22:22:40,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:40,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2023-11-21 22:22:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:40,566 INFO L225 Difference]: With dead ends: 259 [2023-11-21 22:22:40,566 INFO L226 Difference]: Without dead ends: 253 [2023-11-21 22:22:40,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:40,567 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 100 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:40,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 210 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:22:40,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-21 22:22:40,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 199. [2023-11-21 22:22:40,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 145 states have (on average 1.703448275862069) internal successors, (247), 194 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:40,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 253 transitions. [2023-11-21 22:22:40,581 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 253 transitions. Word has length 12 [2023-11-21 22:22:40,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:40,581 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 253 transitions. [2023-11-21 22:22:40,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-21 22:22:40,582 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 253 transitions. [2023-11-21 22:22:40,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 22:22:40,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:40,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:40,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:40,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:40,803 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:40,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:40,804 INFO L85 PathProgramCache]: Analyzing trace with hash -493510841, now seen corresponding path program 1 times [2023-11-21 22:22:40,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:40,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168958867] [2023-11-21 22:22:40,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:40,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:40,816 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:40,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61474448] [2023-11-21 22:22:40,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:40,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:40,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:40,818 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:40,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:22:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:40,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:22:40,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:40,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:40,907 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:40,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:40,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168958867] [2023-11-21 22:22:40,908 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:40,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61474448] [2023-11-21 22:22:40,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61474448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:40,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:40,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:40,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278252078] [2023-11-21 22:22:40,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:40,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:40,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:40,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:40,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:40,916 INFO L87 Difference]: Start difference. First operand 199 states and 253 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-21 22:22:41,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:41,112 INFO L93 Difference]: Finished difference Result 302 states and 354 transitions. [2023-11-21 22:22:41,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:22:41,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) Word has length 14 [2023-11-21 22:22:41,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:41,120 INFO L225 Difference]: With dead ends: 302 [2023-11-21 22:22:41,120 INFO L226 Difference]: Without dead ends: 300 [2023-11-21 22:22:41,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:41,123 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 198 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:41,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 250 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:22:41,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-21 22:22:41,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 200. [2023-11-21 22:22:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 146 states have (on average 1.6917808219178083) internal successors, (247), 195 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:41,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 253 transitions. [2023-11-21 22:22:41,138 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 253 transitions. Word has length 14 [2023-11-21 22:22:41,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:41,140 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 253 transitions. [2023-11-21 22:22:41,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-21 22:22:41,141 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 253 transitions. [2023-11-21 22:22:41,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 22:22:41,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:41,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:41,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:41,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:41,356 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:41,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:41,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1881033179, now seen corresponding path program 1 times [2023-11-21 22:22:41,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:41,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102014297] [2023-11-21 22:22:41,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:41,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:41,377 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:41,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1014188980] [2023-11-21 22:22:41,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:41,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:41,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:41,379 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:41,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:22:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:41,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:22:41,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:41,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:41,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:41,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:41,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102014297] [2023-11-21 22:22:41,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:41,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014188980] [2023-11-21 22:22:41,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014188980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:41,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:41,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:41,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137817306] [2023-11-21 22:22:41,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:41,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:41,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:41,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:41,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:41,455 INFO L87 Difference]: Start difference. First operand 200 states and 253 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-21 22:22:41,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:41,629 INFO L93 Difference]: Finished difference Result 300 states and 352 transitions. [2023-11-21 22:22:41,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:22:41,629 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), 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) Word has length 15 [2023-11-21 22:22:41,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:41,632 INFO L225 Difference]: With dead ends: 300 [2023-11-21 22:22:41,632 INFO L226 Difference]: Without dead ends: 298 [2023-11-21 22:22:41,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:41,633 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 193 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:41,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 252 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:41,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-11-21 22:22:41,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 201. [2023-11-21 22:22:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 147 states have (on average 1.6802721088435375) internal successors, (247), 196 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:41,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 253 transitions. [2023-11-21 22:22:41,646 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 253 transitions. Word has length 15 [2023-11-21 22:22:41,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:41,646 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 253 transitions. [2023-11-21 22:22:41,646 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), 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) [2023-11-21 22:22:41,647 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 253 transitions. [2023-11-21 22:22:41,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 22:22:41,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:41,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:41,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:41,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:41,863 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:41,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:41,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1817513527, now seen corresponding path program 1 times [2023-11-21 22:22:41,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:41,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895999697] [2023-11-21 22:22:41,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:41,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:41,873 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:41,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [637801881] [2023-11-21 22:22:41,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:41,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:41,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:41,875 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:41,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 22:22:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:41,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:22:41,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:41,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:41,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:41,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895999697] [2023-11-21 22:22:41,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:41,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637801881] [2023-11-21 22:22:41,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637801881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:41,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:41,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:41,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692386486] [2023-11-21 22:22:41,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:41,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:41,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:41,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:41,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:41,978 INFO L87 Difference]: Start difference. First operand 201 states and 253 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:42,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:42,160 INFO L93 Difference]: Finished difference Result 278 states and 296 transitions. [2023-11-21 22:22:42,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:22:42,161 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), 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) Word has length 16 [2023-11-21 22:22:42,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:42,165 INFO L225 Difference]: With dead ends: 278 [2023-11-21 22:22:42,166 INFO L226 Difference]: Without dead ends: 276 [2023-11-21 22:22:42,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:42,168 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 220 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:42,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 251 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:22:42,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2023-11-21 22:22:42,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 201. [2023-11-21 22:22:42,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 147 states have (on average 1.6598639455782314) internal successors, (244), 196 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:42,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 250 transitions. [2023-11-21 22:22:42,187 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 250 transitions. Word has length 16 [2023-11-21 22:22:42,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:42,188 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 250 transitions. [2023-11-21 22:22:42,188 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), 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) [2023-11-21 22:22:42,188 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 250 transitions. [2023-11-21 22:22:42,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 22:22:42,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:42,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:42,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:42,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-21 22:22:42,403 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:42,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:42,404 INFO L85 PathProgramCache]: Analyzing trace with hash -508344419, now seen corresponding path program 1 times [2023-11-21 22:22:42,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:42,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945978708] [2023-11-21 22:22:42,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:42,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:42,414 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:42,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2088994433] [2023-11-21 22:22:42,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:42,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:42,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:42,416 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:42,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 22:22:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:42,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:22:42,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:42,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:42,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:42,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:42,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945978708] [2023-11-21 22:22:42,500 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:42,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088994433] [2023-11-21 22:22:42,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088994433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:42,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:42,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:42,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021961555] [2023-11-21 22:22:42,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:42,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:42,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:42,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:42,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:42,502 INFO L87 Difference]: Start difference. First operand 201 states and 250 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:42,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:42,665 INFO L93 Difference]: Finished difference Result 276 states and 293 transitions. [2023-11-21 22:22:42,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:22:42,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-21 22:22:42,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:42,667 INFO L225 Difference]: With dead ends: 276 [2023-11-21 22:22:42,667 INFO L226 Difference]: Without dead ends: 274 [2023-11-21 22:22:42,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:42,669 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 215 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:42,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 253 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:42,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-11-21 22:22:42,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 201. [2023-11-21 22:22:42,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 147 states have (on average 1.6394557823129252) internal successors, (241), 196 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:42,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 247 transitions. [2023-11-21 22:22:42,682 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 247 transitions. Word has length 17 [2023-11-21 22:22:42,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:42,683 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 247 transitions. [2023-11-21 22:22:42,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:42,683 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 247 transitions. [2023-11-21 22:22:42,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 22:22:42,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:42,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:42,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:42,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:42,899 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:42,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:42,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1421192267, now seen corresponding path program 1 times [2023-11-21 22:22:42,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:42,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977551536] [2023-11-21 22:22:42,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:42,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:42,908 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:42,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1514759558] [2023-11-21 22:22:42,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:42,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:42,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:42,910 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:42,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 22:22:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:42,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:22:42,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:43,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:43,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:43,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:43,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977551536] [2023-11-21 22:22:43,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:43,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514759558] [2023-11-21 22:22:43,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514759558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:43,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:43,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:22:43,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562211143] [2023-11-21 22:22:43,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:43,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:22:43,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:43,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:22:43,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:43,038 INFO L87 Difference]: Start difference. First operand 201 states and 247 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2023-11-21 22:22:43,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:43,337 INFO L93 Difference]: Finished difference Result 298 states and 338 transitions. [2023-11-21 22:22:43,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:22:43,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) Word has length 18 [2023-11-21 22:22:43,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:43,339 INFO L225 Difference]: With dead ends: 298 [2023-11-21 22:22:43,339 INFO L226 Difference]: Without dead ends: 296 [2023-11-21 22:22:43,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:22:43,340 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 287 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:43,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 284 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:22:43,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-11-21 22:22:43,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 204. [2023-11-21 22:22:43,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 150 states have (on average 1.62) internal successors, (243), 199 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:43,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 249 transitions. [2023-11-21 22:22:43,351 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 249 transitions. Word has length 18 [2023-11-21 22:22:43,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:43,351 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 249 transitions. [2023-11-21 22:22:43,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2023-11-21 22:22:43,352 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 249 transitions. [2023-11-21 22:22:43,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 22:22:43,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:43,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:43,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:43,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:43,570 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:43,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:43,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1107287391, now seen corresponding path program 1 times [2023-11-21 22:22:43,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:43,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345261607] [2023-11-21 22:22:43,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:43,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:43,579 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:43,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023396977] [2023-11-21 22:22:43,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:43,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:43,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:43,581 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:43,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 22:22:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:43,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:22:43,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:43,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:43,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:43,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:43,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345261607] [2023-11-21 22:22:43,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:43,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023396977] [2023-11-21 22:22:43,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023396977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:43,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:43,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:22:43,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696361447] [2023-11-21 22:22:43,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:43,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:22:43,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:43,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:22:43,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:43,696 INFO L87 Difference]: Start difference. First operand 204 states and 249 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2023-11-21 22:22:43,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:43,937 INFO L93 Difference]: Finished difference Result 296 states and 336 transitions. [2023-11-21 22:22:43,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:22:43,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) Word has length 19 [2023-11-21 22:22:43,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:43,940 INFO L225 Difference]: With dead ends: 296 [2023-11-21 22:22:43,940 INFO L226 Difference]: Without dead ends: 294 [2023-11-21 22:22:43,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:22:43,941 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 280 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:43,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 286 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:22:43,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-21 22:22:43,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 205. [2023-11-21 22:22:43,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 151 states have (on average 1.609271523178808) internal successors, (243), 200 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:43,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 249 transitions. [2023-11-21 22:22:43,952 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 249 transitions. Word has length 19 [2023-11-21 22:22:43,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:43,952 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 249 transitions. [2023-11-21 22:22:43,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2023-11-21 22:22:43,953 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 249 transitions. [2023-11-21 22:22:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 22:22:43,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:43,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:43,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:44,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:44,174 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:44,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:44,174 INFO L85 PathProgramCache]: Analyzing trace with hash -33829171, now seen corresponding path program 1 times [2023-11-21 22:22:44,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:44,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888207733] [2023-11-21 22:22:44,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:44,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:44,182 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:44,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [310824567] [2023-11-21 22:22:44,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:44,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:44,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:44,184 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:44,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 22:22:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:44,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:22:44,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:44,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:44,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:44,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:44,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888207733] [2023-11-21 22:22:44,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:44,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310824567] [2023-11-21 22:22:44,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310824567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:44,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:44,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:22:44,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128065036] [2023-11-21 22:22:44,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:44,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:22:44,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:44,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:22:44,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:22:44,392 INFO L87 Difference]: Start difference. First operand 205 states and 249 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2023-11-21 22:22:44,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:44,743 INFO L93 Difference]: Finished difference Result 294 states and 334 transitions. [2023-11-21 22:22:44,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:22:44,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) Word has length 20 [2023-11-21 22:22:44,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:44,745 INFO L225 Difference]: With dead ends: 294 [2023-11-21 22:22:44,746 INFO L226 Difference]: Without dead ends: 292 [2023-11-21 22:22:44,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:22:44,747 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 495 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:44,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 198 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:22:44,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-21 22:22:44,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 206. [2023-11-21 22:22:44,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 152 states have (on average 1.5986842105263157) internal successors, (243), 201 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:44,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 249 transitions. [2023-11-21 22:22:44,757 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 249 transitions. Word has length 20 [2023-11-21 22:22:44,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:44,757 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 249 transitions. [2023-11-21 22:22:44,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2023-11-21 22:22:44,758 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 249 transitions. [2023-11-21 22:22:44,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 22:22:44,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:44,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:44,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:44,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:44,973 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:44,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:44,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1048704223, now seen corresponding path program 1 times [2023-11-21 22:22:44,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:44,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237706975] [2023-11-21 22:22:44,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:44,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:44,980 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:44,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654302918] [2023-11-21 22:22:44,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:44,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:44,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:44,982 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:45,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-21 22:22:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:45,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:22:45,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:45,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:45,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:45,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237706975] [2023-11-21 22:22:45,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:45,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654302918] [2023-11-21 22:22:45,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654302918] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:45,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:45,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:22:45,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831310194] [2023-11-21 22:22:45,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:45,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:22:45,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:45,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:22:45,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:22:45,161 INFO L87 Difference]: Start difference. First operand 206 states and 249 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2023-11-21 22:22:45,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:45,557 INFO L93 Difference]: Finished difference Result 292 states and 332 transitions. [2023-11-21 22:22:45,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:22:45,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) Word has length 21 [2023-11-21 22:22:45,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:45,559 INFO L225 Difference]: With dead ends: 292 [2023-11-21 22:22:45,560 INFO L226 Difference]: Without dead ends: 290 [2023-11-21 22:22:45,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:22:45,561 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 383 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:45,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 201 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:22:45,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-11-21 22:22:45,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 207. [2023-11-21 22:22:45,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 153 states have (on average 1.588235294117647) internal successors, (243), 202 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:45,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 249 transitions. [2023-11-21 22:22:45,572 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 249 transitions. Word has length 21 [2023-11-21 22:22:45,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:45,572 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 249 transitions. [2023-11-21 22:22:45,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2023-11-21 22:22:45,573 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 249 transitions. [2023-11-21 22:22:45,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 22:22:45,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:45,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:45,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:45,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-21 22:22:45,795 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:45,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:45,795 INFO L85 PathProgramCache]: Analyzing trace with hash -355316783, now seen corresponding path program 1 times [2023-11-21 22:22:45,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:45,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843972221] [2023-11-21 22:22:45,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:45,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:45,803 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:45,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [353772874] [2023-11-21 22:22:45,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:45,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:45,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:45,816 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:45,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-21 22:22:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:45,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:22:45,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:46,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:46,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:46,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:46,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843972221] [2023-11-21 22:22:46,084 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:46,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353772874] [2023-11-21 22:22:46,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353772874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:46,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:46,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:22:46,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469576175] [2023-11-21 22:22:46,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:46,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:22:46,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:46,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:22:46,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:22:46,087 INFO L87 Difference]: Start difference. First operand 207 states and 249 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2023-11-21 22:22:46,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:46,669 INFO L93 Difference]: Finished difference Result 288 states and 330 transitions. [2023-11-21 22:22:46,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:22:46,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) Word has length 24 [2023-11-21 22:22:46,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:46,672 INFO L225 Difference]: With dead ends: 288 [2023-11-21 22:22:46,672 INFO L226 Difference]: Without dead ends: 284 [2023-11-21 22:22:46,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:22:46,673 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 401 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:46,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 134 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:22:46,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-21 22:22:46,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 208. [2023-11-21 22:22:46,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 156 states have (on average 1.5576923076923077) internal successors, (243), 203 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:46,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 249 transitions. [2023-11-21 22:22:46,682 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 249 transitions. Word has length 24 [2023-11-21 22:22:46,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:46,683 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 249 transitions. [2023-11-21 22:22:46,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2023-11-21 22:22:46,683 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 249 transitions. [2023-11-21 22:22:46,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 22:22:46,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:46,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:46,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:46,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-21 22:22:46,905 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:46,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:46,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1870081701, now seen corresponding path program 1 times [2023-11-21 22:22:46,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:46,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548961640] [2023-11-21 22:22:46,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:46,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:46,912 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:46,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [577495426] [2023-11-21 22:22:46,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:46,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:46,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:46,914 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:46,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-21 22:22:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:46,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:22:46,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:47,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:47,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:47,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:47,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548961640] [2023-11-21 22:22:47,176 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:47,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577495426] [2023-11-21 22:22:47,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577495426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:47,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:47,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:22:47,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90216246] [2023-11-21 22:22:47,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:47,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:22:47,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:47,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:22:47,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:22:47,178 INFO L87 Difference]: Start difference. First operand 208 states and 249 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:47,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:47,641 INFO L93 Difference]: Finished difference Result 282 states and 324 transitions. [2023-11-21 22:22:47,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:22:47,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-21 22:22:47,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:47,643 INFO L225 Difference]: With dead ends: 282 [2023-11-21 22:22:47,643 INFO L226 Difference]: Without dead ends: 278 [2023-11-21 22:22:47,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:22:47,644 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 351 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:47,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 135 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:22:47,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2023-11-21 22:22:47,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 207. [2023-11-21 22:22:47,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 157 states have (on average 1.535031847133758) internal successors, (241), 202 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:47,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 247 transitions. [2023-11-21 22:22:47,655 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 247 transitions. Word has length 25 [2023-11-21 22:22:47,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:47,655 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 247 transitions. [2023-11-21 22:22:47,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:47,656 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 247 transitions. [2023-11-21 22:22:47,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 22:22:47,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:47,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:47,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:47,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-21 22:22:47,888 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:47,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:47,889 INFO L85 PathProgramCache]: Analyzing trace with hash 2137957971, now seen corresponding path program 1 times [2023-11-21 22:22:47,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:47,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264793300] [2023-11-21 22:22:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:47,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:47,895 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:47,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2909737] [2023-11-21 22:22:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:47,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:47,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:47,897 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:47,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-21 22:22:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:47,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:22:47,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:48,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:48,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:48,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264793300] [2023-11-21 22:22:48,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:48,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2909737] [2023-11-21 22:22:48,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2909737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:48,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:48,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:48,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840299759] [2023-11-21 22:22:48,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:48,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:48,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:48,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:48,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:48,026 INFO L87 Difference]: Start difference. First operand 207 states and 247 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-21 22:22:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:48,251 INFO L93 Difference]: Finished difference Result 234 states and 272 transitions. [2023-11-21 22:22:48,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:22:48,252 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), 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) Word has length 26 [2023-11-21 22:22:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:48,259 INFO L225 Difference]: With dead ends: 234 [2023-11-21 22:22:48,260 INFO L226 Difference]: Without dead ends: 232 [2023-11-21 22:22:48,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:48,262 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 42 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:48,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 143 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:22:48,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-11-21 22:22:48,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 208. [2023-11-21 22:22:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 158 states have (on average 1.5253164556962024) internal successors, (241), 203 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 247 transitions. [2023-11-21 22:22:48,280 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 247 transitions. Word has length 26 [2023-11-21 22:22:48,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:48,282 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 247 transitions. [2023-11-21 22:22:48,282 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), 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) [2023-11-21 22:22:48,282 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 247 transitions. [2023-11-21 22:22:48,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 22:22:48,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:48,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:48,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:48,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-21 22:22:48,504 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:48,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:48,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1852187751, now seen corresponding path program 1 times [2023-11-21 22:22:48,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:48,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79078481] [2023-11-21 22:22:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:48,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:48,516 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:48,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953003262] [2023-11-21 22:22:48,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:48,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:48,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:48,522 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:48,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-21 22:22:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:48,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:22:48,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:48,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:48,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:48,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79078481] [2023-11-21 22:22:48,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:48,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953003262] [2023-11-21 22:22:48,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953003262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:48,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:48,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:48,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144165701] [2023-11-21 22:22:48,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:48,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:48,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:48,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:48,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:48,657 INFO L87 Difference]: Start difference. First operand 208 states and 247 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-21 22:22:48,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:48,814 INFO L93 Difference]: Finished difference Result 232 states and 270 transitions. [2023-11-21 22:22:48,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:22:48,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) Word has length 27 [2023-11-21 22:22:48,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:48,816 INFO L225 Difference]: With dead ends: 232 [2023-11-21 22:22:48,816 INFO L226 Difference]: Without dead ends: 230 [2023-11-21 22:22:48,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:48,817 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 71 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:48,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 126 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:48,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-11-21 22:22:48,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 209. [2023-11-21 22:22:48,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 159 states have (on average 1.5157232704402517) internal successors, (241), 204 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:48,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 247 transitions. [2023-11-21 22:22:48,827 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 247 transitions. Word has length 27 [2023-11-21 22:22:48,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:48,827 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 247 transitions. [2023-11-21 22:22:48,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-21 22:22:48,829 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 247 transitions. [2023-11-21 22:22:48,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 22:22:48,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:48,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:48,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:49,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:49,031 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:49,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:49,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1816322767, now seen corresponding path program 1 times [2023-11-21 22:22:49,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:49,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630646037] [2023-11-21 22:22:49,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:49,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:49,042 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:49,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132170197] [2023-11-21 22:22:49,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:49,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:49,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:49,044 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:49,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-21 22:22:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:49,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:22:49,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:49,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:49,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:49,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:49,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630646037] [2023-11-21 22:22:49,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:49,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132170197] [2023-11-21 22:22:49,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132170197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:49,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:49,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:49,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135900899] [2023-11-21 22:22:49,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:49,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:49,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:49,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:49,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:49,287 INFO L87 Difference]: Start difference. First operand 209 states and 247 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:49,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:49,521 INFO L93 Difference]: Finished difference Result 230 states and 268 transitions. [2023-11-21 22:22:49,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:22:49,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2023-11-21 22:22:49,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:49,523 INFO L225 Difference]: With dead ends: 230 [2023-11-21 22:22:49,524 INFO L226 Difference]: Without dead ends: 228 [2023-11-21 22:22:49,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:49,525 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 204 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:49,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 100 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:22:49,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-11-21 22:22:49,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 218. [2023-11-21 22:22:49,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 168 states have (on average 1.494047619047619) internal successors, (251), 213 states have internal predecessors, (251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:49,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 257 transitions. [2023-11-21 22:22:49,536 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 257 transitions. Word has length 35 [2023-11-21 22:22:49,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:49,537 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 257 transitions. [2023-11-21 22:22:49,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:49,537 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 257 transitions. [2023-11-21 22:22:49,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-21 22:22:49,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:49,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:49,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:49,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:49,759 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:49,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:49,759 INFO L85 PathProgramCache]: Analyzing trace with hash -471430822, now seen corresponding path program 1 times [2023-11-21 22:22:49,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:49,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075243060] [2023-11-21 22:22:49,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:49,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:49,767 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:49,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984067744] [2023-11-21 22:22:49,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:49,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:49,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:49,769 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:49,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-21 22:22:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:49,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:22:49,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:49,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:49,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:49,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:49,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075243060] [2023-11-21 22:22:49,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:49,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984067744] [2023-11-21 22:22:49,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984067744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:49,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:49,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:49,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317326877] [2023-11-21 22:22:49,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:49,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:49,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:49,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:49,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:49,874 INFO L87 Difference]: Start difference. First operand 218 states and 257 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:49,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:49,962 INFO L93 Difference]: Finished difference Result 218 states and 257 transitions. [2023-11-21 22:22:49,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:22:49,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2023-11-21 22:22:49,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:49,964 INFO L225 Difference]: With dead ends: 218 [2023-11-21 22:22:49,964 INFO L226 Difference]: Without dead ends: 217 [2023-11-21 22:22:49,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:49,965 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 81 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:49,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 130 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:49,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-21 22:22:49,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2023-11-21 22:22:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 168 states have (on average 1.4821428571428572) internal successors, (249), 212 states have internal predecessors, (249), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:49,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 255 transitions. [2023-11-21 22:22:49,975 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 255 transitions. Word has length 36 [2023-11-21 22:22:49,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:49,976 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 255 transitions. [2023-11-21 22:22:49,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:49,976 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 255 transitions. [2023-11-21 22:22:49,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-21 22:22:49,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:49,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:50,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:50,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:50,197 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:50,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:50,198 INFO L85 PathProgramCache]: Analyzing trace with hash -2073449796, now seen corresponding path program 1 times [2023-11-21 22:22:50,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:50,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51034865] [2023-11-21 22:22:50,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:50,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:50,205 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:50,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [46811510] [2023-11-21 22:22:50,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:50,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:50,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:50,207 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:50,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-21 22:22:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:50,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:22:50,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:50,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:50,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:50,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51034865] [2023-11-21 22:22:50,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:50,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46811510] [2023-11-21 22:22:50,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46811510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:50,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:50,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:50,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144744431] [2023-11-21 22:22:50,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:50,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:50,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:50,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:50,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:50,306 INFO L87 Difference]: Start difference. First operand 217 states and 255 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:50,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:50,492 INFO L93 Difference]: Finished difference Result 217 states and 255 transitions. [2023-11-21 22:22:50,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:22:50,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2023-11-21 22:22:50,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:50,497 INFO L225 Difference]: With dead ends: 217 [2023-11-21 22:22:50,497 INFO L226 Difference]: Without dead ends: 216 [2023-11-21 22:22:50,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:50,498 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 80 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:50,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 194 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:22:50,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-21 22:22:50,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2023-11-21 22:22:50,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 168 states have (on average 1.4702380952380953) internal successors, (247), 211 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 253 transitions. [2023-11-21 22:22:50,508 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 253 transitions. Word has length 38 [2023-11-21 22:22:50,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:50,509 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 253 transitions. [2023-11-21 22:22:50,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:50,509 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 253 transitions. [2023-11-21 22:22:50,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-21 22:22:50,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:50,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:50,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:50,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:50,731 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:50,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:50,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1492513594, now seen corresponding path program 1 times [2023-11-21 22:22:50,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:50,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369541731] [2023-11-21 22:22:50,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:50,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:50,739 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:50,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173886843] [2023-11-21 22:22:50,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:50,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:50,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:50,741 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:50,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-21 22:22:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:50,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:22:50,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:51,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:51,047 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:51,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:51,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369541731] [2023-11-21 22:22:51,048 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:51,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173886843] [2023-11-21 22:22:51,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173886843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:51,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:51,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:51,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232782797] [2023-11-21 22:22:51,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:51,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:51,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:51,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:51,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:51,050 INFO L87 Difference]: Start difference. First operand 216 states and 253 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:51,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:51,203 INFO L93 Difference]: Finished difference Result 225 states and 261 transitions. [2023-11-21 22:22:51,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:22:51,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2023-11-21 22:22:51,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:51,205 INFO L225 Difference]: With dead ends: 225 [2023-11-21 22:22:51,205 INFO L226 Difference]: Without dead ends: 224 [2023-11-21 22:22:51,205 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 [2023-11-21 22:22:51,206 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 165 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:51,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 97 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:51,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-11-21 22:22:51,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 217. [2023-11-21 22:22:51,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 169 states have (on average 1.467455621301775) internal successors, (248), 212 states have internal predecessors, (248), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:51,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 254 transitions. [2023-11-21 22:22:51,217 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 254 transitions. Word has length 38 [2023-11-21 22:22:51,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:51,217 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 254 transitions. [2023-11-21 22:22:51,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:51,218 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 254 transitions. [2023-11-21 22:22:51,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-21 22:22:51,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:51,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:51,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:51,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-21 22:22:51,435 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:51,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:51,436 INFO L85 PathProgramCache]: Analyzing trace with hash 147565895, now seen corresponding path program 1 times [2023-11-21 22:22:51,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:51,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996618693] [2023-11-21 22:22:51,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:51,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:51,454 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:51,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968361881] [2023-11-21 22:22:51,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:51,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:51,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:51,455 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:51,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-21 22:22:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:51,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:22:51,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:51,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:51,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:51,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:51,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996618693] [2023-11-21 22:22:51,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:51,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968361881] [2023-11-21 22:22:51,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968361881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:51,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:51,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:51,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018244217] [2023-11-21 22:22:51,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:51,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:51,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:51,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:51,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:51,545 INFO L87 Difference]: Start difference. First operand 217 states and 254 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:51,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:51,591 INFO L93 Difference]: Finished difference Result 235 states and 272 transitions. [2023-11-21 22:22:51,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:22:51,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2023-11-21 22:22:51,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:51,593 INFO L225 Difference]: With dead ends: 235 [2023-11-21 22:22:51,593 INFO L226 Difference]: Without dead ends: 234 [2023-11-21 22:22:51,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:51,594 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 37 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:51,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 299 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:22:51,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-11-21 22:22:51,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 226. [2023-11-21 22:22:51,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 178 states have (on average 1.4550561797752808) internal successors, (259), 221 states have internal predecessors, (259), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:51,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 265 transitions. [2023-11-21 22:22:51,606 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 265 transitions. Word has length 39 [2023-11-21 22:22:51,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:51,606 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 265 transitions. [2023-11-21 22:22:51,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:51,606 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 265 transitions. [2023-11-21 22:22:51,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-21 22:22:51,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:51,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:51,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:51,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-21 22:22:51,828 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:51,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:51,828 INFO L85 PathProgramCache]: Analyzing trace with hash 976718965, now seen corresponding path program 1 times [2023-11-21 22:22:51,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:51,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468711791] [2023-11-21 22:22:51,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:51,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:51,835 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:51,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222656858] [2023-11-21 22:22:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:51,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:51,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:51,837 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:51,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-21 22:22:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:51,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:22:51,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:51,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:51,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:51,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:51,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468711791] [2023-11-21 22:22:51,950 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:51,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222656858] [2023-11-21 22:22:51,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222656858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:51,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:51,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:51,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696013283] [2023-11-21 22:22:51,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:51,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:51,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:51,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:51,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:51,952 INFO L87 Difference]: Start difference. First operand 226 states and 265 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:52,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:52,113 INFO L93 Difference]: Finished difference Result 226 states and 265 transitions. [2023-11-21 22:22:52,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:22:52,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2023-11-21 22:22:52,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:52,115 INFO L225 Difference]: With dead ends: 226 [2023-11-21 22:22:52,115 INFO L226 Difference]: Without dead ends: 224 [2023-11-21 22:22:52,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:52,116 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 77 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:52,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 190 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:52,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-11-21 22:22:52,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2023-11-21 22:22:52,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 178 states have (on average 1.4382022471910112) internal successors, (256), 219 states have internal predecessors, (256), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:52,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 262 transitions. [2023-11-21 22:22:52,126 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 262 transitions. Word has length 39 [2023-11-21 22:22:52,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:52,127 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 262 transitions. [2023-11-21 22:22:52,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:52,127 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 262 transitions. [2023-11-21 22:22:52,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-21 22:22:52,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:52,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:52,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:52,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-21 22:22:52,348 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:52,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:52,348 INFO L85 PathProgramCache]: Analyzing trace with hash 213516968, now seen corresponding path program 1 times [2023-11-21 22:22:52,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:52,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157603203] [2023-11-21 22:22:52,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:52,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:52,356 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:52,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [257207122] [2023-11-21 22:22:52,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:52,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:52,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:52,357 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:52,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-21 22:22:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:52,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:22:52,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:52,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:52,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:52,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:52,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157603203] [2023-11-21 22:22:52,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:52,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257207122] [2023-11-21 22:22:52,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257207122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:52,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:52,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:52,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348507345] [2023-11-21 22:22:52,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:52,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:52,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:52,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:52,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:52,452 INFO L87 Difference]: Start difference. First operand 224 states and 262 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:52,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:52,506 INFO L93 Difference]: Finished difference Result 267 states and 276 transitions. [2023-11-21 22:22:52,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:22:52,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2023-11-21 22:22:52,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:52,508 INFO L225 Difference]: With dead ends: 267 [2023-11-21 22:22:52,508 INFO L226 Difference]: Without dead ends: 266 [2023-11-21 22:22:52,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:52,509 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 65 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:52,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 291 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:22:52,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-21 22:22:52,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 232. [2023-11-21 22:22:52,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 186 states have (on average 1.424731182795699) internal successors, (265), 227 states have internal predecessors, (265), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:22:52,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 271 transitions. [2023-11-21 22:22:52,522 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 271 transitions. Word has length 40 [2023-11-21 22:22:52,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:52,522 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 271 transitions. [2023-11-21 22:22:52,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:52,522 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 271 transitions. [2023-11-21 22:22:52,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 22:22:52,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:52,523 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:22:52,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:52,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-21 22:22:52,739 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:52,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:52,739 INFO L85 PathProgramCache]: Analyzing trace with hash 76905769, now seen corresponding path program 1 times [2023-11-21 22:22:52,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:52,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273366601] [2023-11-21 22:22:52,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:52,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:52,745 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:52,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037230169] [2023-11-21 22:22:52,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:52,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:52,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:52,747 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:52,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-21 22:22:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:52,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:22:52,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:52,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:52,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:52,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:52,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273366601] [2023-11-21 22:22:52,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:52,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037230169] [2023-11-21 22:22:52,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037230169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:52,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:52,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:22:52,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698661701] [2023-11-21 22:22:52,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:52,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:22:52,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:52,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:22:52,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:22:52,866 INFO L87 Difference]: Start difference. First operand 232 states and 271 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:52,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:52,908 INFO L93 Difference]: Finished difference Result 304 states and 358 transitions. [2023-11-21 22:22:52,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:22:52,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2023-11-21 22:22:52,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:52,910 INFO L225 Difference]: With dead ends: 304 [2023-11-21 22:22:52,910 INFO L226 Difference]: Without dead ends: 138 [2023-11-21 22:22:52,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:22:52,912 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 60 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 253 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 [2023-11-21 22:22:52,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 253 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:22:52,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-21 22:22:52,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-11-21 22:22:52,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 116 states have (on average 1.293103448275862) internal successors, (150), 135 states have internal predecessors, (150), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:52,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 152 transitions. [2023-11-21 22:22:52,919 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 152 transitions. Word has length 41 [2023-11-21 22:22:52,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:52,920 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 152 transitions. [2023-11-21 22:22:52,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:52,920 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 152 transitions. [2023-11-21 22:22:52,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-21 22:22:52,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:52,921 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:22:52,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:53,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-21 22:22:53,125 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:53,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:53,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1910888408, now seen corresponding path program 1 times [2023-11-21 22:22:53,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:53,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063498420] [2023-11-21 22:22:53,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:53,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:53,146 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:53,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1242516559] [2023-11-21 22:22:53,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:53,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:53,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:53,149 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:53,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-21 22:22:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:53,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:22:53,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:53,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:53,286 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:22:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:53,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:53,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063498420] [2023-11-21 22:22:53,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:53,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242516559] [2023-11-21 22:22:53,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242516559] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:22:53,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:22:53,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-21 22:22:53,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984743970] [2023-11-21 22:22:53,408 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:22:53,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:22:53,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:53,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:22:53,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:22:53,410 INFO L87 Difference]: Start difference. First operand 138 states and 152 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:22:53,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:53,465 INFO L93 Difference]: Finished difference Result 144 states and 157 transitions. [2023-11-21 22:22:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:22:53,466 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2023-11-21 22:22:53,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:53,467 INFO L225 Difference]: With dead ends: 144 [2023-11-21 22:22:53,467 INFO L226 Difference]: Without dead ends: 143 [2023-11-21 22:22:53,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:22:53,468 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 122 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:53,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 349 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:22:53,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-21 22:22:53,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 137. [2023-11-21 22:22:53,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 116 states have (on average 1.2758620689655173) internal successors, (148), 134 states have internal predecessors, (148), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:53,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 150 transitions. [2023-11-21 22:22:53,476 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 150 transitions. Word has length 42 [2023-11-21 22:22:53,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:53,477 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 150 transitions. [2023-11-21 22:22:53,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:22:53,477 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 150 transitions. [2023-11-21 22:22:53,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-21 22:22:53,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:53,478 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:53,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:53,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-21 22:22:53,698 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:53,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:53,698 INFO L85 PathProgramCache]: Analyzing trace with hash 655591230, now seen corresponding path program 1 times [2023-11-21 22:22:53,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:53,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418877136] [2023-11-21 22:22:53,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:53,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:53,706 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:53,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1671423464] [2023-11-21 22:22:53,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:53,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:53,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:53,711 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:53,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-21 22:22:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:53,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:22:53,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:53,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:53,947 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:22:54,086 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:54,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:54,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418877136] [2023-11-21 22:22:54,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:54,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671423464] [2023-11-21 22:22:54,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671423464] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:22:54,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:22:54,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-21 22:22:54,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879079105] [2023-11-21 22:22:54,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:22:54,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:22:54,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:54,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:22:54,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:22:54,089 INFO L87 Difference]: Start difference. First operand 137 states and 150 transitions. Second operand has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:22:54,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:54,300 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2023-11-21 22:22:54,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:22:54,301 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2023-11-21 22:22:54,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:54,302 INFO L225 Difference]: With dead ends: 143 [2023-11-21 22:22:54,302 INFO L226 Difference]: Without dead ends: 142 [2023-11-21 22:22:54,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:22:54,303 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 282 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:54,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 210 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:22:54,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-21 22:22:54,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 136. [2023-11-21 22:22:54,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 116 states have (on average 1.2586206896551724) internal successors, (146), 133 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:54,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 148 transitions. [2023-11-21 22:22:54,311 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 148 transitions. Word has length 46 [2023-11-21 22:22:54,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:54,311 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 148 transitions. [2023-11-21 22:22:54,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:22:54,311 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 148 transitions. [2023-11-21 22:22:54,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-21 22:22:54,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:54,312 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:54,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:54,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-21 22:22:54,527 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:54,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:54,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1151508208, now seen corresponding path program 1 times [2023-11-21 22:22:54,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:54,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048989057] [2023-11-21 22:22:54,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:54,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:54,535 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:54,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307616005] [2023-11-21 22:22:54,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:54,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:54,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:54,537 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:54,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-21 22:22:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:54,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:22:54,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:54,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:54,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:22:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:55,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:55,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048989057] [2023-11-21 22:22:55,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:55,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307616005] [2023-11-21 22:22:55,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307616005] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:22:55,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:22:55,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-21 22:22:55,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526038523] [2023-11-21 22:22:55,133 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:22:55,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:22:55,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:55,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:22:55,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:22:55,135 INFO L87 Difference]: Start difference. First operand 136 states and 148 transitions. Second operand has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 10 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:22:55,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:55,312 INFO L93 Difference]: Finished difference Result 142 states and 153 transitions. [2023-11-21 22:22:55,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:22:55,313 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 10 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2023-11-21 22:22:55,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:55,314 INFO L225 Difference]: With dead ends: 142 [2023-11-21 22:22:55,314 INFO L226 Difference]: Without dead ends: 141 [2023-11-21 22:22:55,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:22:55,315 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 173 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:55,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 160 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:22:55,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-21 22:22:55,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 135. [2023-11-21 22:22:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 116 states have (on average 1.2413793103448276) internal successors, (144), 132 states have internal predecessors, (144), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:55,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 146 transitions. [2023-11-21 22:22:55,324 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 146 transitions. Word has length 47 [2023-11-21 22:22:55,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:55,324 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 146 transitions. [2023-11-21 22:22:55,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 10 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:22:55,325 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 146 transitions. [2023-11-21 22:22:55,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-21 22:22:55,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:55,326 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:55,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-21 22:22:55,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:55,531 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:55,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:55,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1337015936, now seen corresponding path program 1 times [2023-11-21 22:22:55,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:55,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48463374] [2023-11-21 22:22:55,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:55,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:55,539 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:55,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1904438497] [2023-11-21 22:22:55,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:55,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:55,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:55,541 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:55,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-21 22:22:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:55,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-21 22:22:55,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:55,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:55,773 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:22:55,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:55,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:55,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48463374] [2023-11-21 22:22:55,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:55,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904438497] [2023-11-21 22:22:55,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904438497] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:22:55,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:22:55,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-21 22:22:55,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279450607] [2023-11-21 22:22:55,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:22:55,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 22:22:55,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:55,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 22:22:55,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:22:55,920 INFO L87 Difference]: Start difference. First operand 135 states and 146 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:22:56,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:56,185 INFO L93 Difference]: Finished difference Result 141 states and 151 transitions. [2023-11-21 22:22:56,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:22:56,186 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2023-11-21 22:22:56,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:56,187 INFO L225 Difference]: With dead ends: 141 [2023-11-21 22:22:56,187 INFO L226 Difference]: Without dead ends: 140 [2023-11-21 22:22:56,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-11-21 22:22:56,188 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 268 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:56,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 98 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:22:56,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-21 22:22:56,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2023-11-21 22:22:56,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 116 states have (on average 1.2241379310344827) internal successors, (142), 131 states have internal predecessors, (142), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:56,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 144 transitions. [2023-11-21 22:22:56,198 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 144 transitions. Word has length 48 [2023-11-21 22:22:56,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:56,198 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 144 transitions. [2023-11-21 22:22:56,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:22:56,199 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 144 transitions. [2023-11-21 22:22:56,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-21 22:22:56,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:56,199 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:56,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:56,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:56,418 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:56,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:56,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1688924086, now seen corresponding path program 1 times [2023-11-21 22:22:56,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:56,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535870869] [2023-11-21 22:22:56,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:56,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:56,426 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:56,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470141712] [2023-11-21 22:22:56,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:56,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:56,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:56,427 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:56,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-21 22:22:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:56,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:22:56,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:56,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:56,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:56,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535870869] [2023-11-21 22:22:56,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:56,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470141712] [2023-11-21 22:22:56,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470141712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:56,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:56,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:22:56,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618122996] [2023-11-21 22:22:56,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:56,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:22:56,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:56,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:22:56,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:22:56,695 INFO L87 Difference]: Start difference. First operand 134 states and 144 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:56,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:56,820 INFO L93 Difference]: Finished difference Result 153 states and 152 transitions. [2023-11-21 22:22:56,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:22:56,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2023-11-21 22:22:56,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:56,822 INFO L225 Difference]: With dead ends: 153 [2023-11-21 22:22:56,822 INFO L226 Difference]: Without dead ends: 152 [2023-11-21 22:22:56,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:22:56,823 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 120 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:56,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 338 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:56,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-21 22:22:56,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 133. [2023-11-21 22:22:56,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 116 states have (on average 1.2155172413793103) internal successors, (141), 130 states have internal predecessors, (141), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:56,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 143 transitions. [2023-11-21 22:22:56,833 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 143 transitions. Word has length 48 [2023-11-21 22:22:56,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:56,834 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 143 transitions. [2023-11-21 22:22:56,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:56,834 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 143 transitions. [2023-11-21 22:22:56,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-21 22:22:56,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:56,835 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:56,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:57,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-21 22:22:57,036 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:57,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:57,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1502179090, now seen corresponding path program 1 times [2023-11-21 22:22:57,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:57,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704674206] [2023-11-21 22:22:57,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:57,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:57,045 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:57,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773865050] [2023-11-21 22:22:57,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:57,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:57,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:57,047 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:57,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-21 22:22:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:57,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 22:22:57,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:57,286 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:22:57,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:57,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:57,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704674206] [2023-11-21 22:22:57,535 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:57,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773865050] [2023-11-21 22:22:57,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773865050] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:22:57,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:22:57,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-21 22:22:57,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113632308] [2023-11-21 22:22:57,536 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:22:57,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 22:22:57,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:57,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 22:22:57,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:22:57,539 INFO L87 Difference]: Start difference. First operand 133 states and 143 transitions. Second operand has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 14 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:22:58,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:58,180 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2023-11-21 22:22:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 22:22:58,180 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 14 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2023-11-21 22:22:58,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:58,181 INFO L225 Difference]: With dead ends: 151 [2023-11-21 22:22:58,182 INFO L226 Difference]: Without dead ends: 150 [2023-11-21 22:22:58,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2023-11-21 22:22:58,183 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 686 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:58,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 135 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:22:58,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-21 22:22:58,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 132. [2023-11-21 22:22:58,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.1982758620689655) internal successors, (139), 129 states have internal predecessors, (139), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:58,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 141 transitions. [2023-11-21 22:22:58,213 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 141 transitions. Word has length 49 [2023-11-21 22:22:58,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:58,214 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 141 transitions. [2023-11-21 22:22:58,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 14 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:22:58,214 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 141 transitions. [2023-11-21 22:22:58,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-21 22:22:58,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:58,215 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:58,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:58,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-21 22:22:58,434 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:58,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:58,435 INFO L85 PathProgramCache]: Analyzing trace with hash -817038976, now seen corresponding path program 1 times [2023-11-21 22:22:58,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:58,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899849614] [2023-11-21 22:22:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:58,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:58,441 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:58,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109692621] [2023-11-21 22:22:58,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:58,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:58,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:58,443 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:58,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-21 22:22:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:58,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-21 22:22:58,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:58,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:22:59,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:59,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899849614] [2023-11-21 22:22:59,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:59,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109692621] [2023-11-21 22:22:59,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109692621] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:22:59,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:22:59,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-21 22:22:59,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610617023] [2023-11-21 22:22:59,004 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:22:59,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:22:59,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:59,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:22:59,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:22:59,005 INFO L87 Difference]: Start difference. First operand 132 states and 141 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:59,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:59,127 INFO L93 Difference]: Finished difference Result 150 states and 149 transitions. [2023-11-21 22:22:59,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:22:59,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-21 22:22:59,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:59,128 INFO L225 Difference]: With dead ends: 150 [2023-11-21 22:22:59,129 INFO L226 Difference]: Without dead ends: 148 [2023-11-21 22:22:59,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:22:59,130 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 69 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:59,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 400 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:59,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-21 22:22:59,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 118. [2023-11-21 22:22:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 104 states have (on average 1.125) internal successors, (117), 115 states have internal predecessors, (117), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:59,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 119 transitions. [2023-11-21 22:22:59,137 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 119 transitions. Word has length 49 [2023-11-21 22:22:59,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:59,138 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 119 transitions. [2023-11-21 22:22:59,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:59,138 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 119 transitions. [2023-11-21 22:22:59,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-21 22:22:59,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:59,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:59,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:59,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-21 22:22:59,358 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:22:59,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:59,358 INFO L85 PathProgramCache]: Analyzing trace with hash -988729583, now seen corresponding path program 1 times [2023-11-21 22:22:59,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:59,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383080263] [2023-11-21 22:22:59,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:59,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:59,368 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:22:59,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [834699204] [2023-11-21 22:22:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:59,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:59,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:59,370 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:59,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-21 22:22:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:59,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:22:59,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:59,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:59,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:59,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:59,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383080263] [2023-11-21 22:22:59,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:22:59,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834699204] [2023-11-21 22:22:59,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834699204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:59,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:59,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:59,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63931959] [2023-11-21 22:22:59,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:59,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:22:59,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:59,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:22:59,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:59,651 INFO L87 Difference]: Start difference. First operand 118 states and 119 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:59,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:59,795 INFO L93 Difference]: Finished difference Result 124 states and 124 transitions. [2023-11-21 22:22:59,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:22:59,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2023-11-21 22:22:59,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:59,796 INFO L225 Difference]: With dead ends: 124 [2023-11-21 22:22:59,797 INFO L226 Difference]: Without dead ends: 123 [2023-11-21 22:22:59,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:22:59,797 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 24 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:59,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 66 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:59,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-21 22:22:59,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2023-11-21 22:22:59,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 107 states have (on average 1.1214953271028036) internal successors, (120), 118 states have internal predecessors, (120), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:59,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 122 transitions. [2023-11-21 22:22:59,831 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 122 transitions. Word has length 52 [2023-11-21 22:22:59,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:59,831 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 122 transitions. [2023-11-21 22:22:59,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:22:59,831 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 122 transitions. [2023-11-21 22:22:59,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-21 22:22:59,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:59,832 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:59,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:00,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:00,032 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:00,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:00,033 INFO L85 PathProgramCache]: Analyzing trace with hash -2141807100, now seen corresponding path program 1 times [2023-11-21 22:23:00,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:00,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094243950] [2023-11-21 22:23:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:00,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:00,039 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:00,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1746952014] [2023-11-21 22:23:00,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:00,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:00,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:00,040 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:00,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-21 22:23:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:00,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:23:00,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:00,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:23:00,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:23:00,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:00,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094243950] [2023-11-21 22:23:00,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:00,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746952014] [2023-11-21 22:23:00,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746952014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:00,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:00,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:23:00,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980889121] [2023-11-21 22:23:00,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:00,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:23:00,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:00,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:23:00,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:23:00,165 INFO L87 Difference]: Start difference. First operand 121 states and 122 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:00,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:00,267 INFO L93 Difference]: Finished difference Result 145 states and 145 transitions. [2023-11-21 22:23:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:23:00,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2023-11-21 22:23:00,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:00,268 INFO L225 Difference]: With dead ends: 145 [2023-11-21 22:23:00,268 INFO L226 Difference]: Without dead ends: 144 [2023-11-21 22:23:00,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:23:00,269 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 174 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:00,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 101 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:23:00,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-21 22:23:00,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 122. [2023-11-21 22:23:00,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 108 states have (on average 1.1203703703703705) internal successors, (121), 119 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:00,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 123 transitions. [2023-11-21 22:23:00,276 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 123 transitions. Word has length 52 [2023-11-21 22:23:00,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:00,277 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 123 transitions. [2023-11-21 22:23:00,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:00,277 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 123 transitions. [2023-11-21 22:23:00,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-21 22:23:00,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:00,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:00,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:00,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-21 22:23:00,497 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:00,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:00,498 INFO L85 PathProgramCache]: Analyzing trace with hash -585845823, now seen corresponding path program 1 times [2023-11-21 22:23:00,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:00,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428792241] [2023-11-21 22:23:00,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:00,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:00,505 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:00,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [126256590] [2023-11-21 22:23:00,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:00,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:00,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:00,506 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:00,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-21 22:23:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:00,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:23:00,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:00,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:00,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:23:00,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:00,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428792241] [2023-11-21 22:23:00,766 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:00,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126256590] [2023-11-21 22:23:00,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126256590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:00,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:00,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:23:00,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427686992] [2023-11-21 22:23:00,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:00,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:23:00,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:00,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:23:00,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:23:00,769 INFO L87 Difference]: Start difference. First operand 122 states and 123 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:00,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:00,911 INFO L93 Difference]: Finished difference Result 124 states and 124 transitions. [2023-11-21 22:23:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:23:00,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2023-11-21 22:23:00,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:00,912 INFO L225 Difference]: With dead ends: 124 [2023-11-21 22:23:00,912 INFO L226 Difference]: Without dead ends: 101 [2023-11-21 22:23:00,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:23:00,913 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 21 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:00,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 69 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:23:00,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-21 22:23:00,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-21 22:23:00,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 87 states have (on average 1.1379310344827587) internal successors, (99), 98 states have internal predecessors, (99), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:00,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2023-11-21 22:23:00,922 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 53 [2023-11-21 22:23:00,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:00,922 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2023-11-21 22:23:00,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:00,923 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2023-11-21 22:23:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-21 22:23:00,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:00,923 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:00,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:01,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-21 22:23:01,131 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:01,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:01,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1971510506, now seen corresponding path program 1 times [2023-11-21 22:23:01,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:01,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136335333] [2023-11-21 22:23:01,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:01,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:01,138 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:01,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374664244] [2023-11-21 22:23:01,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:01,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:01,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:01,140 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:01,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-21 22:23:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:01,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:23:01,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:01,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:23:01,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:23:01,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:01,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136335333] [2023-11-21 22:23:01,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:01,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374664244] [2023-11-21 22:23:01,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374664244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:01,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:01,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:23:01,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129818253] [2023-11-21 22:23:01,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:01,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:23:01,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:01,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:23:01,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:23:01,263 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:01,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:01,358 INFO L93 Difference]: Finished difference Result 123 states and 122 transitions. [2023-11-21 22:23:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:23:01,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2023-11-21 22:23:01,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:01,362 INFO L225 Difference]: With dead ends: 123 [2023-11-21 22:23:01,362 INFO L226 Difference]: Without dead ends: 122 [2023-11-21 22:23:01,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:23:01,368 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 165 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:01,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 103 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:23:01,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-21 22:23:01,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 102. [2023-11-21 22:23:01,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 88 states have (on average 1.1363636363636365) internal successors, (100), 99 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:01,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2023-11-21 22:23:01,375 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 53 [2023-11-21 22:23:01,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:01,376 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2023-11-21 22:23:01,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:01,376 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2023-11-21 22:23:01,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-21 22:23:01,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:01,377 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:01,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-21 22:23:01,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-21 22:23:01,591 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:01,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:01,591 INFO L85 PathProgramCache]: Analyzing trace with hash -987283386, now seen corresponding path program 1 times [2023-11-21 22:23:01,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:01,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465577643] [2023-11-21 22:23:01,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:01,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:01,598 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:01,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140370136] [2023-11-21 22:23:01,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:01,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:01,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:01,600 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:01,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-21 22:23:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:01,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-21 22:23:01,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:02,083 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:23:02,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:02,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:02,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465577643] [2023-11-21 22:23:02,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:02,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140370136] [2023-11-21 22:23:02,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140370136] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:23:02,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:23:02,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-21 22:23:02,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185506217] [2023-11-21 22:23:02,363 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:23:02,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 22:23:02,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:02,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 22:23:02,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:23:02,365 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand has 14 states, 13 states have (on average 7.923076923076923) internal successors, (103), 14 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:03,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:03,755 INFO L93 Difference]: Finished difference Result 122 states and 121 transitions. [2023-11-21 22:23:03,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:23:03,756 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.923076923076923) internal successors, (103), 14 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2023-11-21 22:23:03,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:03,757 INFO L225 Difference]: With dead ends: 122 [2023-11-21 22:23:03,757 INFO L226 Difference]: Without dead ends: 120 [2023-11-21 22:23:03,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2023-11-21 22:23:03,759 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 225 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:03,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 152 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-21 22:23:03,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-21 22:23:03,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 107. [2023-11-21 22:23:03,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 93 states have (on average 1.1397849462365592) internal successors, (106), 104 states have internal predecessors, (106), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:03,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 108 transitions. [2023-11-21 22:23:03,766 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 108 transitions. Word has length 54 [2023-11-21 22:23:03,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:03,767 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 108 transitions. [2023-11-21 22:23:03,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.923076923076923) internal successors, (103), 14 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:03,767 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 108 transitions. [2023-11-21 22:23:03,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-21 22:23:03,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:03,768 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:03,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:03,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-21 22:23:03,983 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:03,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:03,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1454732144, now seen corresponding path program 1 times [2023-11-21 22:23:03,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:03,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232180869] [2023-11-21 22:23:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:03,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:03,989 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:03,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93334662] [2023-11-21 22:23:03,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:03,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:03,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:03,990 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:03,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-21 22:23:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:04,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 22:23:04,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:04,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:04,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:23:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:04,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:04,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232180869] [2023-11-21 22:23:04,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:04,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93334662] [2023-11-21 22:23:04,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93334662] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:23:04,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:23:04,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-21 22:23:04,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476656653] [2023-11-21 22:23:04,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:23:04,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 22:23:04,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:04,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 22:23:04,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:23:04,391 INFO L87 Difference]: Start difference. First operand 107 states and 108 transitions. Second operand has 14 states, 13 states have (on average 7.615384615384615) internal successors, (99), 14 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:06,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:06,317 INFO L93 Difference]: Finished difference Result 120 states and 119 transitions. [2023-11-21 22:23:06,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:23:06,317 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.615384615384615) internal successors, (99), 14 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2023-11-21 22:23:06,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:06,318 INFO L225 Difference]: With dead ends: 120 [2023-11-21 22:23:06,318 INFO L226 Difference]: Without dead ends: 118 [2023-11-21 22:23:06,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2023-11-21 22:23:06,319 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 247 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:06,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 268 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-21 22:23:06,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-21 22:23:06,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 105. [2023-11-21 22:23:06,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 93 states have (on average 1.118279569892473) internal successors, (104), 102 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:06,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 106 transitions. [2023-11-21 22:23:06,327 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 106 transitions. Word has length 54 [2023-11-21 22:23:06,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:06,327 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 106 transitions. [2023-11-21 22:23:06,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.615384615384615) internal successors, (99), 14 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:06,328 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 106 transitions. [2023-11-21 22:23:06,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-21 22:23:06,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:06,329 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:06,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:06,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-21 22:23:06,548 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:06,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:06,549 INFO L85 PathProgramCache]: Analyzing trace with hash -541013736, now seen corresponding path program 1 times [2023-11-21 22:23:06,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:06,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301939794] [2023-11-21 22:23:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:06,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:06,555 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:06,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054401362] [2023-11-21 22:23:06,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:06,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:06,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:06,557 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:06,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-21 22:23:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:06,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:23:06,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:06,688 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:06,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:23:06,788 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:06,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:06,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301939794] [2023-11-21 22:23:06,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:06,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054401362] [2023-11-21 22:23:06,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054401362] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:23:06,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:23:06,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-21 22:23:06,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471169667] [2023-11-21 22:23:06,790 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:23:06,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:23:06,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:06,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:23:06,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:23:06,791 INFO L87 Difference]: Start difference. First operand 105 states and 106 transitions. Second operand has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:06,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:06,952 INFO L93 Difference]: Finished difference Result 105 states and 106 transitions. [2023-11-21 22:23:06,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:23:06,953 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55 [2023-11-21 22:23:06,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:06,954 INFO L225 Difference]: With dead ends: 105 [2023-11-21 22:23:06,954 INFO L226 Difference]: Without dead ends: 104 [2023-11-21 22:23:06,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:23:06,955 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:06,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 145 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:23:06,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-21 22:23:06,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2023-11-21 22:23:06,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 93 states have (on average 1.096774193548387) internal successors, (102), 101 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:06,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2023-11-21 22:23:06,964 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 55 [2023-11-21 22:23:06,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:06,964 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2023-11-21 22:23:06,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:06,965 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2023-11-21 22:23:06,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-21 22:23:06,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:06,966 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:06,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:07,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-21 22:23:07,185 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:07,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:07,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2133214382, now seen corresponding path program 1 times [2023-11-21 22:23:07,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:07,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246820017] [2023-11-21 22:23:07,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:07,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:07,192 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:07,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [479955484] [2023-11-21 22:23:07,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:07,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:07,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:07,194 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:07,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-21 22:23:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:07,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-21 22:23:07,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:07,747 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:07,747 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:23:08,300 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:08,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:08,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246820017] [2023-11-21 22:23:08,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:08,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479955484] [2023-11-21 22:23:08,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479955484] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:23:08,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:23:08,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-21 22:23:08,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480760268] [2023-11-21 22:23:08,302 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:23:08,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-21 22:23:08,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:08,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-21 22:23:08,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2023-11-21 22:23:08,303 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand has 20 states, 19 states have (on average 5.631578947368421) internal successors, (107), 20 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:09,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:09,976 INFO L93 Difference]: Finished difference Result 116 states and 115 transitions. [2023-11-21 22:23:09,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-21 22:23:09,976 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.631578947368421) internal successors, (107), 20 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2023-11-21 22:23:09,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:09,977 INFO L225 Difference]: With dead ends: 116 [2023-11-21 22:23:09,977 INFO L226 Difference]: Without dead ends: 115 [2023-11-21 22:23:09,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2023-11-21 22:23:09,979 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 303 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:09,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 157 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-21 22:23:09,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-21 22:23:09,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 103. [2023-11-21 22:23:09,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 93 states have (on average 1.086021505376344) internal successors, (101), 100 states have internal predecessors, (101), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:09,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2023-11-21 22:23:09,987 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 56 [2023-11-21 22:23:09,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:09,988 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2023-11-21 22:23:09,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.631578947368421) internal successors, (107), 20 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:09,988 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2023-11-21 22:23:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-21 22:23:09,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:09,989 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:10,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:10,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-11-21 22:23:10,210 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:10,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:10,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1705136248, now seen corresponding path program 1 times [2023-11-21 22:23:10,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:10,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998127643] [2023-11-21 22:23:10,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:10,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:10,217 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:10,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631337512] [2023-11-21 22:23:10,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:10,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:10,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:10,219 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:10,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-21 22:23:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:10,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-21 22:23:10,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:10,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:10,627 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:23:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:11,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:11,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998127643] [2023-11-21 22:23:11,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:11,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631337512] [2023-11-21 22:23:11,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631337512] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:23:11,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:23:11,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-11-21 22:23:11,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055474526] [2023-11-21 22:23:11,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:23:11,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-21 22:23:11,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:11,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-21 22:23:11,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2023-11-21 22:23:11,028 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand has 18 states, 17 states have (on average 6.411764705882353) internal successors, (109), 18 states have internal predecessors, (109), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:14,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:14,154 INFO L93 Difference]: Finished difference Result 115 states and 114 transitions. [2023-11-21 22:23:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 22:23:14,154 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.411764705882353) internal successors, (109), 18 states have internal predecessors, (109), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 57 [2023-11-21 22:23:14,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:14,155 INFO L225 Difference]: With dead ends: 115 [2023-11-21 22:23:14,155 INFO L226 Difference]: Without dead ends: 114 [2023-11-21 22:23:14,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2023-11-21 22:23:14,157 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 305 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:14,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 142 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-21 22:23:14,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-21 22:23:14,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 102. [2023-11-21 22:23:14,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 93 states have (on average 1.075268817204301) internal successors, (100), 99 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2023-11-21 22:23:14,165 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 57 [2023-11-21 22:23:14,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:14,165 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2023-11-21 22:23:14,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.411764705882353) internal successors, (109), 18 states have internal predecessors, (109), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:14,166 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2023-11-21 22:23:14,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-21 22:23:14,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:14,167 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:14,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:14,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:14,383 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:14,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:14,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1319615980, now seen corresponding path program 1 times [2023-11-21 22:23:14,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:14,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670500924] [2023-11-21 22:23:14,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:14,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:14,391 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:14,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818137803] [2023-11-21 22:23:14,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:14,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:14,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:14,393 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:14,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-21 22:23:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:14,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-21 22:23:14,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:14,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:14,948 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:23:15,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:15,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:15,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670500924] [2023-11-21 22:23:15,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:15,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818137803] [2023-11-21 22:23:15,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818137803] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:23:15,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:23:15,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-11-21 22:23:15,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255636018] [2023-11-21 22:23:15,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:23:15,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-21 22:23:15,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:15,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-21 22:23:15,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2023-11-21 22:23:15,210 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 18 states have internal predecessors, (111), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:17,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:17,291 INFO L93 Difference]: Finished difference Result 114 states and 113 transitions. [2023-11-21 22:23:17,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 22:23:17,292 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 18 states have internal predecessors, (111), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58 [2023-11-21 22:23:17,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:17,293 INFO L225 Difference]: With dead ends: 114 [2023-11-21 22:23:17,293 INFO L226 Difference]: Without dead ends: 112 [2023-11-21 22:23:17,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2023-11-21 22:23:17,294 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 268 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:17,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 173 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-21 22:23:17,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-21 22:23:17,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 78. [2023-11-21 22:23:17,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 71 states have (on average 1.0704225352112675) internal successors, (76), 75 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:17,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2023-11-21 22:23:17,302 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 58 [2023-11-21 22:23:17,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:17,302 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2023-11-21 22:23:17,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 18 states have internal predecessors, (111), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:17,303 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2023-11-21 22:23:17,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-21 22:23:17,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:17,304 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:17,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:17,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:17,519 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:17,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:17,519 INFO L85 PathProgramCache]: Analyzing trace with hash 298954012, now seen corresponding path program 1 times [2023-11-21 22:23:17,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:17,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274870081] [2023-11-21 22:23:17,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:17,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:17,525 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:17,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470962175] [2023-11-21 22:23:17,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:17,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:17,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:17,527 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:17,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-21 22:23:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:17,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:23:17,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:17,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:17,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:23:17,859 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:17,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:17,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274870081] [2023-11-21 22:23:17,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:17,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470962175] [2023-11-21 22:23:17,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470962175] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-21 22:23:17,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:23:17,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2023-11-21 22:23:17,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512379636] [2023-11-21 22:23:17,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:17,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:23:17,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:17,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:23:17,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:23:17,862 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:18,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:18,010 INFO L93 Difference]: Finished difference Result 112 states and 111 transitions. [2023-11-21 22:23:18,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:23:18,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2023-11-21 22:23:18,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:18,012 INFO L225 Difference]: With dead ends: 112 [2023-11-21 22:23:18,012 INFO L226 Difference]: Without dead ends: 111 [2023-11-21 22:23:18,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:23:18,013 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 90 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:18,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 71 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:23:18,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-21 22:23:18,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 101. [2023-11-21 22:23:18,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 94 states have (on average 1.053191489361702) internal successors, (99), 98 states have internal predecessors, (99), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:18,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2023-11-21 22:23:18,023 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 59 [2023-11-21 22:23:18,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:18,024 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2023-11-21 22:23:18,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:18,024 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2023-11-21 22:23:18,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-21 22:23:18,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:18,025 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:18,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:18,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:18,245 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:18,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:18,246 INFO L85 PathProgramCache]: Analyzing trace with hash 677639948, now seen corresponding path program 1 times [2023-11-21 22:23:18,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:18,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886995842] [2023-11-21 22:23:18,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:18,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:18,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:18,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731977805] [2023-11-21 22:23:18,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:18,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:18,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:18,255 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:18,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-21 22:23:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:18,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:23:18,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:18,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:23:18,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:18,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886995842] [2023-11-21 22:23:18,402 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:18,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731977805] [2023-11-21 22:23:18,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731977805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:18,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:18,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:23:18,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638579955] [2023-11-21 22:23:18,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:18,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:23:18,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:18,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:23:18,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:23:18,405 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:18,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:18,543 INFO L93 Difference]: Finished difference Result 111 states and 110 transitions. [2023-11-21 22:23:18,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:23:18,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2023-11-21 22:23:18,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:18,544 INFO L225 Difference]: With dead ends: 111 [2023-11-21 22:23:18,544 INFO L226 Difference]: Without dead ends: 110 [2023-11-21 22:23:18,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:23:18,545 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 8 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:18,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 165 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:23:18,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-21 22:23:18,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 102. [2023-11-21 22:23:18,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 95 states have (on average 1.0526315789473684) internal successors, (100), 99 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:18,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2023-11-21 22:23:18,558 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 60 [2023-11-21 22:23:18,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:18,558 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2023-11-21 22:23:18,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:18,559 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2023-11-21 22:23:18,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-21 22:23:18,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:18,560 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:18,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:18,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-21 22:23:18,776 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:18,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:18,776 INFO L85 PathProgramCache]: Analyzing trace with hash -467997922, now seen corresponding path program 1 times [2023-11-21 22:23:18,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:18,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877685145] [2023-11-21 22:23:18,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:18,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:18,783 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:18,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185804251] [2023-11-21 22:23:18,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:18,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:18,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:18,785 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:18,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-21 22:23:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:18,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-21 22:23:18,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:19,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:19,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:23:19,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:19,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:19,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877685145] [2023-11-21 22:23:19,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:19,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185804251] [2023-11-21 22:23:19,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185804251] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:23:19,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:23:19,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-21 22:23:19,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551061329] [2023-11-21 22:23:19,534 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:23:19,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 22:23:19,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 22:23:19,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:23:19,535 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 14 states have internal predecessors, (113), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:20,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:20,198 INFO L93 Difference]: Finished difference Result 110 states and 109 transitions. [2023-11-21 22:23:20,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-21 22:23:20,199 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 14 states have internal predecessors, (113), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2023-11-21 22:23:20,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:20,200 INFO L225 Difference]: With dead ends: 110 [2023-11-21 22:23:20,200 INFO L226 Difference]: Without dead ends: 74 [2023-11-21 22:23:20,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2023-11-21 22:23:20,201 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 153 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:20,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 160 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:23:20,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-21 22:23:20,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-11-21 22:23:20,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 67 states have (on average 1.0597014925373134) internal successors, (71), 71 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:20,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 73 transitions. [2023-11-21 22:23:20,208 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 73 transitions. Word has length 61 [2023-11-21 22:23:20,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:20,209 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 73 transitions. [2023-11-21 22:23:20,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 14 states have internal predecessors, (113), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:20,209 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 73 transitions. [2023-11-21 22:23:20,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-21 22:23:20,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:20,210 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:20,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:20,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-21 22:23:20,430 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:20,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:20,430 INFO L85 PathProgramCache]: Analyzing trace with hash 815766542, now seen corresponding path program 1 times [2023-11-21 22:23:20,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:20,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398957195] [2023-11-21 22:23:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:20,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:20,437 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:20,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202222461] [2023-11-21 22:23:20,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:20,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:20,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:20,439 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:20,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-21 22:23:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:20,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-21 22:23:20,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:21,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:21,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:23:21,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:21,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:21,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398957195] [2023-11-21 22:23:21,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:21,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202222461] [2023-11-21 22:23:21,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202222461] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:23:21,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:23:21,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-11-21 22:23:21,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124965671] [2023-11-21 22:23:21,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:23:21,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-21 22:23:21,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:21,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-21 22:23:21,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-21 22:23:21,398 INFO L87 Difference]: Start difference. First operand 74 states and 73 transitions. Second operand has 18 states, 17 states have (on average 7.117647058823529) internal successors, (121), 18 states have internal predecessors, (121), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:21,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:21,988 INFO L93 Difference]: Finished difference Result 74 states and 73 transitions. [2023-11-21 22:23:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:23:21,988 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.117647058823529) internal successors, (121), 18 states have internal predecessors, (121), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 63 [2023-11-21 22:23:21,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:21,989 INFO L225 Difference]: With dead ends: 74 [2023-11-21 22:23:21,989 INFO L226 Difference]: Without dead ends: 73 [2023-11-21 22:23:21,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2023-11-21 22:23:21,990 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 136 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:21,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 112 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:23:21,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-21 22:23:21,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-11-21 22:23:21,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 67 states have (on average 1.044776119402985) internal successors, (70), 70 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:21,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 72 transitions. [2023-11-21 22:23:21,998 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 72 transitions. Word has length 63 [2023-11-21 22:23:21,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:21,998 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 72 transitions. [2023-11-21 22:23:21,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.117647058823529) internal successors, (121), 18 states have internal predecessors, (121), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:21,998 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 72 transitions. [2023-11-21 22:23:21,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-21 22:23:21,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:21,999 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:22,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2023-11-21 22:23:22,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-21 22:23:22,212 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:22,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:22,212 INFO L85 PathProgramCache]: Analyzing trace with hash -481040806, now seen corresponding path program 1 times [2023-11-21 22:23:22,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:22,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715182258] [2023-11-21 22:23:22,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:22,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:22,219 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:22,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636265264] [2023-11-21 22:23:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:22,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:22,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:22,221 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:22,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-21 22:23:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:22,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-21 22:23:22,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:22,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:22,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:23:23,305 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:23,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:23,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715182258] [2023-11-21 22:23:23,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:23,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636265264] [2023-11-21 22:23:23,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636265264] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:23:23,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:23:23,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-11-21 22:23:23,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30834667] [2023-11-21 22:23:23,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:23:23,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-21 22:23:23,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:23,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-21 22:23:23,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-11-21 22:23:23,311 INFO L87 Difference]: Start difference. First operand 73 states and 72 transitions. Second operand has 18 states, 17 states have (on average 7.0) internal successors, (119), 18 states have internal predecessors, (119), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:23,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:23,943 INFO L93 Difference]: Finished difference Result 73 states and 72 transitions. [2023-11-21 22:23:23,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 22:23:23,943 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.0) internal successors, (119), 18 states have internal predecessors, (119), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2023-11-21 22:23:23,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:23,944 INFO L225 Difference]: With dead ends: 73 [2023-11-21 22:23:23,944 INFO L226 Difference]: Without dead ends: 71 [2023-11-21 22:23:23,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2023-11-21 22:23:23,945 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 180 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:23,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 114 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:23:23,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-21 22:23:23,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-21 22:23:23,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 67 states have (on average 1.0149253731343284) internal successors, (68), 68 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:23:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 70 transitions. [2023-11-21 22:23:23,951 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 70 transitions. Word has length 64 [2023-11-21 22:23:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:23,952 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 70 transitions. [2023-11-21 22:23:23,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.0) internal successors, (119), 18 states have internal predecessors, (119), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 70 transitions. [2023-11-21 22:23:23,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-21 22:23:23,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:23,952 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:23,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-21 22:23:24,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-21 22:23:24,153 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:23:24,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:24,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2027362928, now seen corresponding path program 1 times [2023-11-21 22:23:24,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:24,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938011257] [2023-11-21 22:23:24,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:24,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:24,160 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:23:24,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2008373453] [2023-11-21 22:23:24,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:24,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:23:24,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:24,162 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:23:24,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-21 22:23:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:24,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-21 22:23:24,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:24,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:24,804 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:23:25,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:25,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:25,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938011257] [2023-11-21 22:23:25,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:23:25,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008373453] [2023-11-21 22:23:25,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008373453] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:23:25,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:23:25,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-11-21 22:23:25,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813798024] [2023-11-21 22:23:25,067 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:23:25,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-21 22:23:25,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:25,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-21 22:23:25,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2023-11-21 22:23:25,069 INFO L87 Difference]: Start difference. First operand 71 states and 70 transitions. Second operand has 18 states, 17 states have (on average 7.352941176470588) internal successors, (125), 18 states have internal predecessors, (125), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:25,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:25,722 INFO L93 Difference]: Finished difference Result 71 states and 70 transitions. [2023-11-21 22:23:25,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 22:23:25,723 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.352941176470588) internal successors, (125), 18 states have internal predecessors, (125), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2023-11-21 22:23:25,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:25,723 INFO L225 Difference]: With dead ends: 71 [2023-11-21 22:23:25,723 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:23:25,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2023-11-21 22:23:25,725 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 139 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:25,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 120 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:23:25,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:23:25,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:23:25,726 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) [2023-11-21 22:23:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:23:25,726 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2023-11-21 22:23:25,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:25,726 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:23:25,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.352941176470588) internal successors, (125), 18 states have internal predecessors, (125), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:23:25,727 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:23:25,727 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:23:25,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 60 remaining) [2023-11-21 22:23:25,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 60 remaining) [2023-11-21 22:23:25,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 60 remaining) [2023-11-21 22:23:25,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 60 remaining) [2023-11-21 22:23:25,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 60 remaining) [2023-11-21 22:23:25,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 60 remaining) [2023-11-21 22:23:25,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 60 remaining) [2023-11-21 22:23:25,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 60 remaining) [2023-11-21 22:23:25,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 60 remaining) [2023-11-21 22:23:25,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 60 remaining) [2023-11-21 22:23:25,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 60 remaining) [2023-11-21 22:23:25,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 60 remaining) [2023-11-21 22:23:25,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 60 remaining) [2023-11-21 22:23:25,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 60 remaining) [2023-11-21 22:23:25,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 60 remaining) [2023-11-21 22:23:25,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 60 remaining) [2023-11-21 22:23:25,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 60 remaining) [2023-11-21 22:23:25,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 60 remaining) [2023-11-21 22:23:25,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 60 remaining) [2023-11-21 22:23:25,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 60 remaining) [2023-11-21 22:23:25,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 60 remaining) [2023-11-21 22:23:25,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 60 remaining) [2023-11-21 22:23:25,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 60 remaining) [2023-11-21 22:23:25,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 60 remaining) [2023-11-21 22:23:25,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 60 remaining) [2023-11-21 22:23:25,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 60 remaining) [2023-11-21 22:23:25,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 60 remaining) [2023-11-21 22:23:25,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 60 remaining) [2023-11-21 22:23:25,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 60 remaining) [2023-11-21 22:23:25,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 60 remaining) [2023-11-21 22:23:25,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 60 remaining) [2023-11-21 22:23:25,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 60 remaining) [2023-11-21 22:23:25,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 60 remaining) [2023-11-21 22:23:25,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 60 remaining) [2023-11-21 22:23:25,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 60 remaining) [2023-11-21 22:23:25,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 60 remaining) [2023-11-21 22:23:25,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 60 remaining) [2023-11-21 22:23:25,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 60 remaining) [2023-11-21 22:23:25,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 60 remaining) [2023-11-21 22:23:25,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 60 remaining) [2023-11-21 22:23:25,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 60 remaining) [2023-11-21 22:23:25,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 60 remaining) [2023-11-21 22:23:25,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 60 remaining) [2023-11-21 22:23:25,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 60 remaining) [2023-11-21 22:23:25,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 60 remaining) [2023-11-21 22:23:25,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 60 remaining) [2023-11-21 22:23:25,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 60 remaining) [2023-11-21 22:23:25,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 60 remaining) [2023-11-21 22:23:25,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 60 remaining) [2023-11-21 22:23:25,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 60 remaining) [2023-11-21 22:23:25,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 60 remaining) [2023-11-21 22:23:25,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 60 remaining) [2023-11-21 22:23:25,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 60 remaining) [2023-11-21 22:23:25,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 60 remaining) [2023-11-21 22:23:25,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 60 remaining) [2023-11-21 22:23:25,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 60 remaining) [2023-11-21 22:23:25,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 60 remaining) [2023-11-21 22:23:25,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 60 remaining) [2023-11-21 22:23:25,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 60 remaining) [2023-11-21 22:23:25,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 60 remaining) [2023-11-21 22:23:25,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-21 22:23:25,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e1f0-aecf-48a4-9a4b-4477dcf2ffe9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-21 22:23:25,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.