./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya --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 4e2993d4b0d2c145cb6ebddb0d9f125eb6995ee629adf15e0b0f7e55a8d8a49a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:30:51,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:30:51,516 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-28 23:30:51,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:30:51,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:30:51,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:30:51,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:30:51,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:30:51,542 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:30:51,543 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:30:51,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:30:51,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:30:51,545 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:30:51,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:30:51,546 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:30:51,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:30:51,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:30:51,547 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:30:51,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:30:51,548 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:30:51,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:30:51,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:30:51,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:30:51,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:30:51,551 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 23:30:51,551 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:30:51,551 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:30:51,552 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:30:51,552 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:30:51,553 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:30:51,553 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:30:51,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:30:51,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:30:51,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:30:51,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:30:51,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:30:51,555 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:30:51,556 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:30:51,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:30:51,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:30:51,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:30:51,557 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:30:51,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:30:51,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:30:51,558 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_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e2993d4b0d2c145cb6ebddb0d9f125eb6995ee629adf15e0b0f7e55a8d8a49a [2023-11-28 23:30:51,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:30:51,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:30:51,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:30:51,806 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:30:51,806 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:30:51,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c [2023-11-28 23:30:54,622 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:30:56,911 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:30:56,912 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c [2023-11-28 23:30:56,919 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/data/b475f097f/310593e2185e405289e405aeed9ef9e9/FLAG18f4a6b29 [2023-11-28 23:30:56,931 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/data/b475f097f/310593e2185e405289e405aeed9ef9e9 [2023-11-28 23:30:56,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:30:56,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:30:56,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:30:56,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:30:56,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:30:56,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:30:56" (1/1) ... [2023-11-28 23:30:56,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460c2bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:56, skipping insertion in model container [2023-11-28 23:30:56,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:30:56" (1/1) ... [2023-11-28 23:30:56,960 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:30:57,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:30:57,116 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:30:57,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:30:57,154 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:30:57,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57 WrapperNode [2023-11-28 23:30:57,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:30:57,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:30:57,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:30:57,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:30:57,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (1/1) ... [2023-11-28 23:30:57,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (1/1) ... [2023-11-28 23:30:57,202 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 192 [2023-11-28 23:30:57,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:30:57,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:30:57,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:30:57,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:30:57,215 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (1/1) ... [2023-11-28 23:30:57,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (1/1) ... [2023-11-28 23:30:57,217 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (1/1) ... [2023-11-28 23:30:57,232 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-28 23:30:57,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (1/1) ... [2023-11-28 23:30:57,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (1/1) ... [2023-11-28 23:30:57,239 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (1/1) ... [2023-11-28 23:30:57,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (1/1) ... [2023-11-28 23:30:57,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (1/1) ... [2023-11-28 23:30:57,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (1/1) ... [2023-11-28 23:30:57,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:30:57,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:30:57,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:30:57,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:30:57,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (1/1) ... [2023-11-28 23:30:57,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:30:57,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:30:57,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:30:57,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:30:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:30:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:30:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:30:57,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:30:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-28 23:30:57,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-28 23:30:57,401 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:30:57,403 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:30:58,116 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:30:58,146 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:30:58,147 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:30:58,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:30:58 BoogieIcfgContainer [2023-11-28 23:30:58,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:30:58,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:30:58,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:30:58,153 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:30:58,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:30:56" (1/3) ... [2023-11-28 23:30:58,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f3770b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:30:58, skipping insertion in model container [2023-11-28 23:30:58,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:30:57" (2/3) ... [2023-11-28 23:30:58,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f3770b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:30:58, skipping insertion in model container [2023-11-28 23:30:58,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:30:58" (3/3) ... [2023-11-28 23:30:58,156 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu-ll_valuebound10.c [2023-11-28 23:30:58,175 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:30:58,176 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 138 error locations. [2023-11-28 23:30:58,229 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:30:58,234 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;@10164fa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:30:58,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2023-11-28 23:30:58,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 298 states, 147 states have (on average 1.9727891156462585) internal successors, (290), 285 states have internal predecessors, (290), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 23:30:58,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-28 23:30:58,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:30:58,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-28 23:30:58,245 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:30:58,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:30:58,250 INFO L85 PathProgramCache]: Analyzing trace with hash 355713825, now seen corresponding path program 1 times [2023-11-28 23:30:58,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:30:58,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351495809] [2023-11-28 23:30:58,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:30:58,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:30:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:30:58,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:30:58,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:30:58,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351495809] [2023-11-28 23:30:58,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351495809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:30:58,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:30:58,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:30:58,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645400537] [2023-11-28 23:30:58,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:30:58,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:30:58,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:30:58,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:30:58,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:30:58,437 INFO L87 Difference]: Start difference. First operand has 298 states, 147 states have (on average 1.9727891156462585) internal successors, (290), 285 states have internal predecessors, (290), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 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) [2023-11-28 23:30:58,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:30:58,494 INFO L93 Difference]: Finished difference Result 587 states and 632 transitions. [2023-11-28 23:30:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:30:58,496 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 [2023-11-28 23:30:58,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:30:58,508 INFO L225 Difference]: With dead ends: 587 [2023-11-28 23:30:58,508 INFO L226 Difference]: Without dead ends: 288 [2023-11-28 23:30:58,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:30:58,516 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:30:58,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 299 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:30:58,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-11-28 23:30:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2023-11-28 23:30:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 146 states have (on average 1.8972602739726028) internal successors, (277), 276 states have internal predecessors, (277), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-28 23:30:58,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 297 transitions. [2023-11-28 23:30:58,578 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 297 transitions. Word has length 5 [2023-11-28 23:30:58,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:30:58,579 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 297 transitions. [2023-11-28 23:30:58,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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) [2023-11-28 23:30:58,579 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 297 transitions. [2023-11-28 23:30:58,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-28 23:30:58,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:30:58,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-28 23:30:58,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 23:30:58,581 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:30:58,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:30:58,581 INFO L85 PathProgramCache]: Analyzing trace with hash 355773348, now seen corresponding path program 1 times [2023-11-28 23:30:58,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:30:58,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399613136] [2023-11-28 23:30:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:30:58,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:30:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:30:58,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:30:58,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:30:58,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399613136] [2023-11-28 23:30:58,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399613136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:30:58,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:30:58,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:30:58,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360188880] [2023-11-28 23:30:58,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:30:58,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:30:58,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:30:58,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:30:58,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:30:58,653 INFO L87 Difference]: Start difference. First operand 288 states and 297 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-11-28 23:30:58,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:30:58,800 INFO L93 Difference]: Finished difference Result 557 states and 576 transitions. [2023-11-28 23:30:58,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:30:58,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2023-11-28 23:30:58,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:30:58,805 INFO L225 Difference]: With dead ends: 557 [2023-11-28 23:30:58,806 INFO L226 Difference]: Without dead ends: 537 [2023-11-28 23:30:58,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:30:58,808 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 237 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:30:58,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 519 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:30:58,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-11-28 23:30:58,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 347. [2023-11-28 23:30:58,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 200 states have (on average 1.795) internal successors, (359), 330 states have internal predecessors, (359), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-28 23:30:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 389 transitions. [2023-11-28 23:30:58,840 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 389 transitions. Word has length 5 [2023-11-28 23:30:58,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:30:58,840 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 389 transitions. [2023-11-28 23:30:58,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-11-28 23:30:58,841 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 389 transitions. [2023-11-28 23:30:58,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-28 23:30:58,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:30:58,842 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:30:58,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 23:30:58,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:30:58,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:30:58,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1772025106, now seen corresponding path program 1 times [2023-11-28 23:30:58,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:30:58,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413492664] [2023-11-28 23:30:58,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:30:58,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:30:58,865 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:30:58,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1593464957] [2023-11-28 23:30:58,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:30:58,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:30:58,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:30:58,869 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:30:58,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 23:30:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:30:58,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:30:58,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:30:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:30:59,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:30:59,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:30:59,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413492664] [2023-11-28 23:30:59,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:30:59,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593464957] [2023-11-28 23:30:59,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593464957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:30:59,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:30:59,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:30:59,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984084463] [2023-11-28 23:30:59,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:30:59,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:30:59,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:30:59,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:30:59,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:30:59,107 INFO L87 Difference]: Start difference. First operand 347 states and 389 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:00,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:00,381 INFO L93 Difference]: Finished difference Result 549 states and 568 transitions. [2023-11-28 23:31:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:31:00,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2023-11-28 23:31:00,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:00,385 INFO L225 Difference]: With dead ends: 549 [2023-11-28 23:31:00,385 INFO L226 Difference]: Without dead ends: 512 [2023-11-28 23:31:00,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:31:00,387 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 193 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:00,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 244 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 23:31:00,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-11-28 23:31:00,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 434. [2023-11-28 23:31:00,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.7163120567375887) internal successors, (484), 412 states have internal predecessors, (484), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 23:31:00,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 524 transitions. [2023-11-28 23:31:00,409 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 524 transitions. Word has length 38 [2023-11-28 23:31:00,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:00,409 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 524 transitions. [2023-11-28 23:31:00,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:00,409 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 524 transitions. [2023-11-28 23:31:00,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-28 23:31:00,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:00,411 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:00,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:31:00,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:00,612 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:00,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:00,612 INFO L85 PathProgramCache]: Analyzing trace with hash 901796653, now seen corresponding path program 1 times [2023-11-28 23:31:00,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:00,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014793314] [2023-11-28 23:31:00,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:00,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:00,627 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:00,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2102453291] [2023-11-28 23:31:00,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:00,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:00,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:00,629 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:00,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 23:31:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:00,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:31:00,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:00,782 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:31:00,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:00,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:00,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014793314] [2023-11-28 23:31:00,783 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:00,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102453291] [2023-11-28 23:31:00,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102453291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:00,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:00,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:31:00,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573931465] [2023-11-28 23:31:00,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:00,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:31:00,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:00,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:31:00,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:31:00,785 INFO L87 Difference]: Start difference. First operand 434 states and 524 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:02,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:02,014 INFO L93 Difference]: Finished difference Result 512 states and 531 transitions. [2023-11-28 23:31:02,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:31:02,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2023-11-28 23:31:02,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:02,017 INFO L225 Difference]: With dead ends: 512 [2023-11-28 23:31:02,018 INFO L226 Difference]: Without dead ends: 493 [2023-11-28 23:31:02,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:31:02,019 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 172 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:02,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 265 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 23:31:02,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-11-28 23:31:02,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 434. [2023-11-28 23:31:02,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.648936170212766) internal successors, (465), 412 states have internal predecessors, (465), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 23:31:02,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 505 transitions. [2023-11-28 23:31:02,038 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 505 transitions. Word has length 39 [2023-11-28 23:31:02,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:02,039 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 505 transitions. [2023-11-28 23:31:02,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:02,039 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 505 transitions. [2023-11-28 23:31:02,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-28 23:31:02,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:02,041 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:02,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-28 23:31:02,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:02,241 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:02,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:02,242 INFO L85 PathProgramCache]: Analyzing trace with hash -2109074736, now seen corresponding path program 1 times [2023-11-28 23:31:02,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:02,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764486301] [2023-11-28 23:31:02,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:02,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:02,255 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:02,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [74376184] [2023-11-28 23:31:02,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:02,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:02,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:02,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:02,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 23:31:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:02,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 23:31:02,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:31:02,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:02,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:02,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764486301] [2023-11-28 23:31:02,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:02,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74376184] [2023-11-28 23:31:02,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74376184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:02,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:02,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:31:02,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848913078] [2023-11-28 23:31:02,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:02,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:31:02,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:02,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:31:02,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:31:02,369 INFO L87 Difference]: Start difference. First operand 434 states and 505 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:03,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:03,121 INFO L93 Difference]: Finished difference Result 488 states and 512 transitions. [2023-11-28 23:31:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:31:03,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2023-11-28 23:31:03,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:03,124 INFO L225 Difference]: With dead ends: 488 [2023-11-28 23:31:03,125 INFO L226 Difference]: Without dead ends: 483 [2023-11-28 23:31:03,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:31:03,126 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 164 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:03,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 406 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 23:31:03,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-28 23:31:03,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 434. [2023-11-28 23:31:03,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.6312056737588652) internal successors, (460), 412 states have internal predecessors, (460), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 23:31:03,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 500 transitions. [2023-11-28 23:31:03,140 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 500 transitions. Word has length 40 [2023-11-28 23:31:03,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:03,141 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 500 transitions. [2023-11-28 23:31:03,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:03,141 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 500 transitions. [2023-11-28 23:31:03,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-28 23:31:03,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:03,143 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:03,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 23:31:03,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:03,343 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:03,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:03,344 INFO L85 PathProgramCache]: Analyzing trace with hash -956807281, now seen corresponding path program 1 times [2023-11-28 23:31:03,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:03,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198465446] [2023-11-28 23:31:03,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:03,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:03,356 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:03,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705179386] [2023-11-28 23:31:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:03,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:03,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:03,358 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:03,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 23:31:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:03,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 23:31:03,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:03,446 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:31:03,446 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:03,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:03,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198465446] [2023-11-28 23:31:03,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:03,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705179386] [2023-11-28 23:31:03,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705179386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:03,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:03,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:31:03,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809899735] [2023-11-28 23:31:03,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:03,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:31:03,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:03,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:31:03,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:31:03,449 INFO L87 Difference]: Start difference. First operand 434 states and 500 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:04,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:04,036 INFO L93 Difference]: Finished difference Result 488 states and 507 transitions. [2023-11-28 23:31:04,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:31:04,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2023-11-28 23:31:04,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:04,039 INFO L225 Difference]: With dead ends: 488 [2023-11-28 23:31:04,039 INFO L226 Difference]: Without dead ends: 483 [2023-11-28 23:31:04,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:31:04,040 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 158 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:04,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 411 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:31:04,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-28 23:31:04,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 434. [2023-11-28 23:31:04,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.6134751773049645) internal successors, (455), 412 states have internal predecessors, (455), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 23:31:04,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 495 transitions. [2023-11-28 23:31:04,055 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 495 transitions. Word has length 41 [2023-11-28 23:31:04,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:04,055 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 495 transitions. [2023-11-28 23:31:04,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:04,056 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 495 transitions. [2023-11-28 23:31:04,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-28 23:31:04,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:04,057 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:04,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 23:31:04,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:04,262 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:04,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:04,262 INFO L85 PathProgramCache]: Analyzing trace with hash 403745458, now seen corresponding path program 1 times [2023-11-28 23:31:04,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:04,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792647385] [2023-11-28 23:31:04,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:04,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:04,273 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:04,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [615576833] [2023-11-28 23:31:04,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:04,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:04,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:04,274 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:04,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 23:31:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:04,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:31:04,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:04,387 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:31:04,387 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:04,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:04,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792647385] [2023-11-28 23:31:04,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:04,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615576833] [2023-11-28 23:31:04,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615576833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:04,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:04,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:31:04,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655070130] [2023-11-28 23:31:04,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:04,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:31:04,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:04,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:31:04,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:31:04,390 INFO L87 Difference]: Start difference. First operand 434 states and 495 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:05,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:05,080 INFO L93 Difference]: Finished difference Result 483 states and 502 transitions. [2023-11-28 23:31:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:31:05,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2023-11-28 23:31:05,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:05,083 INFO L225 Difference]: With dead ends: 483 [2023-11-28 23:31:05,083 INFO L226 Difference]: Without dead ends: 481 [2023-11-28 23:31:05,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:31:05,084 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 329 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:05,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 352 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 23:31:05,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-28 23:31:05,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 434. [2023-11-28 23:31:05,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.6063829787234043) internal successors, (453), 412 states have internal predecessors, (453), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 23:31:05,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 493 transitions. [2023-11-28 23:31:05,097 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 493 transitions. Word has length 42 [2023-11-28 23:31:05,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:05,097 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 493 transitions. [2023-11-28 23:31:05,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:05,097 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 493 transitions. [2023-11-28 23:31:05,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-28 23:31:05,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:05,099 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:05,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-28 23:31:05,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:05,302 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:05,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:05,302 INFO L85 PathProgramCache]: Analyzing trace with hash -368792591, now seen corresponding path program 1 times [2023-11-28 23:31:05,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:05,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130867481] [2023-11-28 23:31:05,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:05,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:05,313 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:05,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679238213] [2023-11-28 23:31:05,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:05,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:05,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:05,315 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:05,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 23:31:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:05,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:31:05,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:05,419 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:31:05,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:05,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:05,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130867481] [2023-11-28 23:31:05,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:05,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679238213] [2023-11-28 23:31:05,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679238213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:05,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:05,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:31:05,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365907694] [2023-11-28 23:31:05,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:05,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:31:05,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:05,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:31:05,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:31:05,422 INFO L87 Difference]: Start difference. First operand 434 states and 493 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:06,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:06,288 INFO L93 Difference]: Finished difference Result 481 states and 500 transitions. [2023-11-28 23:31:06,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:31:06,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2023-11-28 23:31:06,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:06,291 INFO L225 Difference]: With dead ends: 481 [2023-11-28 23:31:06,291 INFO L226 Difference]: Without dead ends: 479 [2023-11-28 23:31:06,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:31:06,292 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 324 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:06,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 354 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 23:31:06,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-28 23:31:06,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 434. [2023-11-28 23:31:06,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.599290780141844) internal successors, (451), 412 states have internal predecessors, (451), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 23:31:06,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 491 transitions. [2023-11-28 23:31:06,309 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 491 transitions. Word has length 43 [2023-11-28 23:31:06,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:06,310 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 491 transitions. [2023-11-28 23:31:06,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:06,310 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 491 transitions. [2023-11-28 23:31:06,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-28 23:31:06,311 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:06,311 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:06,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-28 23:31:06,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-28 23:31:06,513 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:06,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:06,514 INFO L85 PathProgramCache]: Analyzing trace with hash -173634954, now seen corresponding path program 1 times [2023-11-28 23:31:06,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:06,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203024202] [2023-11-28 23:31:06,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:06,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:06,524 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:06,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344811736] [2023-11-28 23:31:06,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:06,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:06,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:06,526 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:06,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 23:31:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:06,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:31:06,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:06,734 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:31:06,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:06,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:06,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203024202] [2023-11-28 23:31:06,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:06,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344811736] [2023-11-28 23:31:06,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344811736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:06,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:06,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:31:06,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348195224] [2023-11-28 23:31:06,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:06,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:31:06,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:06,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:31:06,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:31:06,737 INFO L87 Difference]: Start difference. First operand 434 states and 491 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:07,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:07,239 INFO L93 Difference]: Finished difference Result 479 states and 498 transitions. [2023-11-28 23:31:07,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:31:07,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2023-11-28 23:31:07,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:07,242 INFO L225 Difference]: With dead ends: 479 [2023-11-28 23:31:07,242 INFO L226 Difference]: Without dead ends: 464 [2023-11-28 23:31:07,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:31:07,243 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 134 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:07,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 248 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:31:07,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-11-28 23:31:07,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 437. [2023-11-28 23:31:07,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 285 states have (on average 1.550877192982456) internal successors, (442), 415 states have internal predecessors, (442), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 23:31:07,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 482 transitions. [2023-11-28 23:31:07,256 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 482 transitions. Word has length 46 [2023-11-28 23:31:07,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:07,256 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 482 transitions. [2023-11-28 23:31:07,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 482 transitions. [2023-11-28 23:31:07,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-28 23:31:07,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:07,257 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:07,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-28 23:31:07,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:07,458 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:07,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:07,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1087716171, now seen corresponding path program 1 times [2023-11-28 23:31:07,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:07,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235213742] [2023-11-28 23:31:07,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:07,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:07,467 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:07,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1129567370] [2023-11-28 23:31:07,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:07,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:07,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:07,469 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:07,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 23:31:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:07,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:31:07,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:08,082 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:31:08,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:08,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:08,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235213742] [2023-11-28 23:31:08,082 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:08,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129567370] [2023-11-28 23:31:08,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129567370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:08,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:08,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:31:08,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435058223] [2023-11-28 23:31:08,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:08,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:31:08,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:08,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:31:08,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:31:08,084 INFO L87 Difference]: Start difference. First operand 437 states and 482 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:09,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:09,958 INFO L93 Difference]: Finished difference Result 464 states and 483 transitions. [2023-11-28 23:31:09,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:31:09,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2023-11-28 23:31:09,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:09,961 INFO L225 Difference]: With dead ends: 464 [2023-11-28 23:31:09,961 INFO L226 Difference]: Without dead ends: 461 [2023-11-28 23:31:09,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:31:09,962 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 151 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:09,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 370 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-28 23:31:09,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-28 23:31:09,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 437. [2023-11-28 23:31:09,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 285 states have (on average 1.5403508771929824) internal successors, (439), 415 states have internal predecessors, (439), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 23:31:09,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 479 transitions. [2023-11-28 23:31:09,977 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 479 transitions. Word has length 47 [2023-11-28 23:31:09,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:09,978 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 479 transitions. [2023-11-28 23:31:09,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:09,978 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 479 transitions. [2023-11-28 23:31:09,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-28 23:31:09,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:09,979 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:09,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-28 23:31:10,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:10,180 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:10,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:10,180 INFO L85 PathProgramCache]: Analyzing trace with hash -296575623, now seen corresponding path program 1 times [2023-11-28 23:31:10,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:10,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362825682] [2023-11-28 23:31:10,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:10,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:10,190 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:10,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119725236] [2023-11-28 23:31:10,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:10,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:10,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:10,192 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:10,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-28 23:31:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:10,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:31:10,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:10,455 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:31:10,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:10,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:10,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362825682] [2023-11-28 23:31:10,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:10,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119725236] [2023-11-28 23:31:10,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119725236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:10,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:10,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:31:10,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693785460] [2023-11-28 23:31:10,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:10,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:31:10,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:10,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:31:10,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:31:10,458 INFO L87 Difference]: Start difference. First operand 437 states and 479 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:11,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:11,738 INFO L93 Difference]: Finished difference Result 461 states and 480 transitions. [2023-11-28 23:31:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:31:11,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 51 [2023-11-28 23:31:11,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:11,740 INFO L225 Difference]: With dead ends: 461 [2023-11-28 23:31:11,740 INFO L226 Difference]: Without dead ends: 427 [2023-11-28 23:31:11,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:31:11,741 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 143 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:11,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 332 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-28 23:31:11,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-28 23:31:11,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 408. [2023-11-28 23:31:11,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 258 states have (on average 1.5813953488372092) internal successors, (408), 388 states have internal predecessors, (408), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-28 23:31:11,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 444 transitions. [2023-11-28 23:31:11,752 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 444 transitions. Word has length 51 [2023-11-28 23:31:11,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:11,752 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 444 transitions. [2023-11-28 23:31:11,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:31:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 444 transitions. [2023-11-28 23:31:11,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-28 23:31:11,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:11,754 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:11,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-28 23:31:11,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:11,954 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:11,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:11,955 INFO L85 PathProgramCache]: Analyzing trace with hash 124206066, now seen corresponding path program 1 times [2023-11-28 23:31:11,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:11,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837001839] [2023-11-28 23:31:11,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:11,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:11,965 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:11,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592514679] [2023-11-28 23:31:11,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:11,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:11,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:11,967 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:11,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-28 23:31:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:12,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:31:12,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:12,257 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-28 23:31:12,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:12,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:12,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837001839] [2023-11-28 23:31:12,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:12,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592514679] [2023-11-28 23:31:12,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592514679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:12,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:12,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:31:12,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34732258] [2023-11-28 23:31:12,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:12,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:31:12,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:12,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:31:12,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:31:12,260 INFO L87 Difference]: Start difference. First operand 408 states and 444 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-28 23:31:12,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:12,371 INFO L93 Difference]: Finished difference Result 408 states and 444 transitions. [2023-11-28 23:31:12,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 23:31:12,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 86 [2023-11-28 23:31:12,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:12,374 INFO L225 Difference]: With dead ends: 408 [2023-11-28 23:31:12,374 INFO L226 Difference]: Without dead ends: 404 [2023-11-28 23:31:12,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:31:12,375 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 216 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:12,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 508 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:31:12,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2023-11-28 23:31:12,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2023-11-28 23:31:12,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 258 states have (on average 1.550387596899225) internal successors, (400), 384 states have internal predecessors, (400), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-28 23:31:12,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 436 transitions. [2023-11-28 23:31:12,389 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 436 transitions. Word has length 86 [2023-11-28 23:31:12,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:12,390 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 436 transitions. [2023-11-28 23:31:12,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-28 23:31:12,390 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 436 transitions. [2023-11-28 23:31:12,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-28 23:31:12,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:12,391 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:12,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-28 23:31:12,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:12,597 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:12,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash -85276979, now seen corresponding path program 1 times [2023-11-28 23:31:12,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:12,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114726214] [2023-11-28 23:31:12,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:12,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:12,609 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:12,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1776192933] [2023-11-28 23:31:12,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:12,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:12,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:12,611 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:12,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-28 23:31:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:12,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:31:12,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:12,753 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-28 23:31:12,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:12,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:12,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114726214] [2023-11-28 23:31:12,753 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:12,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776192933] [2023-11-28 23:31:12,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776192933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:12,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:12,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:31:12,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110867124] [2023-11-28 23:31:12,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:12,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:31:12,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:12,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:31:12,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:31:12,755 INFO L87 Difference]: Start difference. First operand 404 states and 436 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-28 23:31:12,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:12,860 INFO L93 Difference]: Finished difference Result 419 states and 436 transitions. [2023-11-28 23:31:12,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:31:12,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 86 [2023-11-28 23:31:12,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:12,863 INFO L225 Difference]: With dead ends: 419 [2023-11-28 23:31:12,863 INFO L226 Difference]: Without dead ends: 411 [2023-11-28 23:31:12,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:31:12,864 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 322 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:12,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 496 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:31:12,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-11-28 23:31:12,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 396. [2023-11-28 23:31:12,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 258 states have (on average 1.5193798449612403) internal successors, (392), 376 states have internal predecessors, (392), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-28 23:31:12,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 428 transitions. [2023-11-28 23:31:12,878 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 428 transitions. Word has length 86 [2023-11-28 23:31:12,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:12,879 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 428 transitions. [2023-11-28 23:31:12,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-28 23:31:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 428 transitions. [2023-11-28 23:31:12,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-28 23:31:12,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:12,880 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:12,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-28 23:31:13,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:13,081 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:13,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:13,081 INFO L85 PathProgramCache]: Analyzing trace with hash -897049036, now seen corresponding path program 1 times [2023-11-28 23:31:13,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:13,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880283941] [2023-11-28 23:31:13,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:13,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:13,096 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:13,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1522153870] [2023-11-28 23:31:13,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:13,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:13,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:13,098 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:13,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-28 23:31:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:13,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 23:31:13,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:13,424 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-28 23:31:13,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:13,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:13,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880283941] [2023-11-28 23:31:13,425 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:13,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522153870] [2023-11-28 23:31:13,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522153870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:13,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:13,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:31:13,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121975956] [2023-11-28 23:31:13,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:13,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:31:13,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:13,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:31:13,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:31:13,427 INFO L87 Difference]: Start difference. First operand 396 states and 428 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-28 23:31:13,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:13,619 INFO L93 Difference]: Finished difference Result 415 states and 431 transitions. [2023-11-28 23:31:13,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:31:13,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 88 [2023-11-28 23:31:13,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:13,622 INFO L225 Difference]: With dead ends: 415 [2023-11-28 23:31:13,622 INFO L226 Difference]: Without dead ends: 337 [2023-11-28 23:31:13,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:31:13,623 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 263 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:13,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 650 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:31:13,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-11-28 23:31:13,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2023-11-28 23:31:13,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 202 states have (on average 1.5891089108910892) internal successors, (321), 320 states have internal predecessors, (321), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-28 23:31:13,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 351 transitions. [2023-11-28 23:31:13,633 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 351 transitions. Word has length 88 [2023-11-28 23:31:13,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:13,633 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 351 transitions. [2023-11-28 23:31:13,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-28 23:31:13,633 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 351 transitions. [2023-11-28 23:31:13,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-28 23:31:13,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:13,634 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:13,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-28 23:31:13,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-28 23:31:13,835 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:13,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:13,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1651380999, now seen corresponding path program 1 times [2023-11-28 23:31:13,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:13,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464992448] [2023-11-28 23:31:13,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:13,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:13,846 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:13,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1414577626] [2023-11-28 23:31:13,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:13,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:13,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:13,848 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:13,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-28 23:31:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:13,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:31:13,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:13,978 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-28 23:31:13,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:31:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-28 23:31:14,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:14,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464992448] [2023-11-28 23:31:14,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:14,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414577626] [2023-11-28 23:31:14,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414577626] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:31:14,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:31:14,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-28 23:31:14,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371582054] [2023-11-28 23:31:14,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:31:14,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:31:14,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:14,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:31:14,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:31:14,089 INFO L87 Difference]: Start difference. First operand 337 states and 351 transitions. Second operand has 6 states, 5 states have (on average 25.0) internal successors, (125), 6 states have internal predecessors, (125), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 23:31:14,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:14,241 INFO L93 Difference]: Finished difference Result 605 states and 637 transitions. [2023-11-28 23:31:14,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:31:14,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.0) internal successors, (125), 6 states have internal predecessors, (125), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2023-11-28 23:31:14,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:14,245 INFO L225 Difference]: With dead ends: 605 [2023-11-28 23:31:14,245 INFO L226 Difference]: Without dead ends: 597 [2023-11-28 23:31:14,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:31:14,246 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 632 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:14,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 729 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:31:14,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2023-11-28 23:31:14,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 397. [2023-11-28 23:31:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 263 states have (on average 1.5741444866920151) internal successors, (414), 375 states have internal predecessors, (414), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 23:31:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 454 transitions. [2023-11-28 23:31:14,269 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 454 transitions. Word has length 87 [2023-11-28 23:31:14,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:14,270 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 454 transitions. [2023-11-28 23:31:14,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.0) internal successors, (125), 6 states have internal predecessors, (125), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 23:31:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 454 transitions. [2023-11-28 23:31:14,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-28 23:31:14,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:14,271 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:14,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-28 23:31:14,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-28 23:31:14,471 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:14,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:14,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1640076562, now seen corresponding path program 1 times [2023-11-28 23:31:14,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:14,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273624283] [2023-11-28 23:31:14,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:14,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:14,484 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:14,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1620602993] [2023-11-28 23:31:14,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:14,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:14,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:14,486 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:14,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-28 23:31:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:14,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:31:14,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:14,629 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-28 23:31:14,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:31:14,791 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-28 23:31:14,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:14,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273624283] [2023-11-28 23:31:14,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:14,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620602993] [2023-11-28 23:31:14,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620602993] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:31:14,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:31:14,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-28 23:31:14,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457241098] [2023-11-28 23:31:14,793 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:31:14,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:31:14,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:14,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:31:14,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:31:14,794 INFO L87 Difference]: Start difference. First operand 397 states and 454 transitions. Second operand has 6 states, 5 states have (on average 27.4) internal successors, (137), 6 states have internal predecessors, (137), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-28 23:31:14,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:14,988 INFO L93 Difference]: Finished difference Result 603 states and 633 transitions. [2023-11-28 23:31:14,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:31:14,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.4) internal successors, (137), 6 states have internal predecessors, (137), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 98 [2023-11-28 23:31:14,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:14,991 INFO L225 Difference]: With dead ends: 603 [2023-11-28 23:31:14,991 INFO L226 Difference]: Without dead ends: 598 [2023-11-28 23:31:14,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:31:14,992 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 669 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:14,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 816 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:31:14,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2023-11-28 23:31:15,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 402. [2023-11-28 23:31:15,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 271 states have (on average 1.5276752767527675) internal successors, (414), 379 states have internal predecessors, (414), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-28 23:31:15,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 456 transitions. [2023-11-28 23:31:15,006 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 456 transitions. Word has length 98 [2023-11-28 23:31:15,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:15,007 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 456 transitions. [2023-11-28 23:31:15,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.4) internal successors, (137), 6 states have internal predecessors, (137), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-28 23:31:15,007 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 456 transitions. [2023-11-28 23:31:15,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-28 23:31:15,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:15,009 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:15,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-28 23:31:15,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-28 23:31:15,213 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:15,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:15,214 INFO L85 PathProgramCache]: Analyzing trace with hash -483346203, now seen corresponding path program 1 times [2023-11-28 23:31:15,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:15,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681531536] [2023-11-28 23:31:15,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:15,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:15,226 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:15,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1976767335] [2023-11-28 23:31:15,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:15,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:15,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:15,228 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:15,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-28 23:31:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:15,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:31:15,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 23:31:15,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:15,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:15,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681531536] [2023-11-28 23:31:15,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:15,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976767335] [2023-11-28 23:31:15,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976767335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:15,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:15,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 23:31:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296433906] [2023-11-28 23:31:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:15,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:31:15,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:15,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:31:15,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:31:15,550 INFO L87 Difference]: Start difference. First operand 402 states and 456 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:31:16,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:16,573 INFO L93 Difference]: Finished difference Result 402 states and 456 transitions. [2023-11-28 23:31:16,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:31:16,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 119 [2023-11-28 23:31:16,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:16,575 INFO L225 Difference]: With dead ends: 402 [2023-11-28 23:31:16,575 INFO L226 Difference]: Without dead ends: 385 [2023-11-28 23:31:16,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:31:16,576 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 388 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:16,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 240 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-28 23:31:16,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2023-11-28 23:31:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2023-11-28 23:31:16,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 271 states have (on average 1.4391143911439115) internal successors, (390), 362 states have internal predecessors, (390), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-28 23:31:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 432 transitions. [2023-11-28 23:31:16,593 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 432 transitions. Word has length 119 [2023-11-28 23:31:16,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:16,594 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 432 transitions. [2023-11-28 23:31:16,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:31:16,594 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 432 transitions. [2023-11-28 23:31:16,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-28 23:31:16,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:16,596 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:16,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-28 23:31:16,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-28 23:31:16,796 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:16,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:16,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2098830314, now seen corresponding path program 1 times [2023-11-28 23:31:16,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:16,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368416545] [2023-11-28 23:31:16,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:16,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:16,809 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:16,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [412614422] [2023-11-28 23:31:16,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:16,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:16,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:16,810 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:16,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-28 23:31:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:16,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 23:31:16,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:17,150 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 23:31:17,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:31:17,404 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 23:31:17,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:17,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368416545] [2023-11-28 23:31:17,405 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:17,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412614422] [2023-11-28 23:31:17,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412614422] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:31:17,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:31:17,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-28 23:31:17,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981917280] [2023-11-28 23:31:17,405 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:31:17,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:31:17,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:17,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:31:17,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:31:17,407 INFO L87 Difference]: Start difference. First operand 385 states and 432 transitions. Second operand has 8 states, 7 states have (on average 23.0) internal successors, (161), 8 states have internal predecessors, (161), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-28 23:31:19,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:19,025 INFO L93 Difference]: Finished difference Result 574 states and 603 transitions. [2023-11-28 23:31:19,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:31:19,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.0) internal successors, (161), 8 states have internal predecessors, (161), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 120 [2023-11-28 23:31:19,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:19,028 INFO L225 Difference]: With dead ends: 574 [2023-11-28 23:31:19,028 INFO L226 Difference]: Without dead ends: 543 [2023-11-28 23:31:19,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:31:19,029 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 735 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:19,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 491 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-28 23:31:19,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-11-28 23:31:19,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 479. [2023-11-28 23:31:19,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 359 states have (on average 1.4122562674094707) internal successors, (507), 449 states have internal predecessors, (507), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:31:19,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 563 transitions. [2023-11-28 23:31:19,044 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 563 transitions. Word has length 120 [2023-11-28 23:31:19,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:19,045 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 563 transitions. [2023-11-28 23:31:19,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.0) internal successors, (161), 8 states have internal predecessors, (161), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-28 23:31:19,045 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 563 transitions. [2023-11-28 23:31:19,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-28 23:31:19,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:19,046 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 23:31:19,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-28 23:31:19,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-28 23:31:19,246 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:19,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:19,246 INFO L85 PathProgramCache]: Analyzing trace with hash -639230201, now seen corresponding path program 1 times [2023-11-28 23:31:19,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:19,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195405819] [2023-11-28 23:31:19,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:19,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:19,256 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:19,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250643463] [2023-11-28 23:31:19,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:19,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:19,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:19,257 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:19,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-28 23:31:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:19,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:31:19,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:19,537 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 23:31:19,537 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:31:19,701 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 23:31:19,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:19,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195405819] [2023-11-28 23:31:19,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:19,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250643463] [2023-11-28 23:31:19,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250643463] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:31:19,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:31:19,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-28 23:31:19,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025217954] [2023-11-28 23:31:19,702 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:31:19,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:31:19,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:19,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:31:19,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:31:19,704 INFO L87 Difference]: Start difference. First operand 479 states and 563 transitions. Second operand has 6 states, 5 states have (on average 32.6) internal successors, (163), 6 states have internal predecessors, (163), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-28 23:31:21,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:21,738 INFO L93 Difference]: Finished difference Result 535 states and 570 transitions. [2023-11-28 23:31:21,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:31:21,739 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 32.6) internal successors, (163), 6 states have internal predecessors, (163), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 121 [2023-11-28 23:31:21,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:21,742 INFO L225 Difference]: With dead ends: 535 [2023-11-28 23:31:21,742 INFO L226 Difference]: Without dead ends: 530 [2023-11-28 23:31:21,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:31:21,743 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 427 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:21,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 553 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-28 23:31:21,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2023-11-28 23:31:21,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 475. [2023-11-28 23:31:21,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 359 states have (on average 1.3871866295264623) internal successors, (498), 445 states have internal predecessors, (498), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:31:21,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 554 transitions. [2023-11-28 23:31:21,765 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 554 transitions. Word has length 121 [2023-11-28 23:31:21,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:21,765 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 554 transitions. [2023-11-28 23:31:21,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 32.6) internal successors, (163), 6 states have internal predecessors, (163), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-28 23:31:21,765 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 554 transitions. [2023-11-28 23:31:21,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-28 23:31:21,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:21,767 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 23:31:21,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-28 23:31:21,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:21,967 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:21,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:21,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1658700344, now seen corresponding path program 1 times [2023-11-28 23:31:21,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:21,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118405445] [2023-11-28 23:31:21,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:21,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:21,975 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:21,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545176691] [2023-11-28 23:31:21,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:21,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:21,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:21,977 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:21,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-28 23:31:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:22,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:31:22,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 23:31:22,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:31:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 23:31:22,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:22,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118405445] [2023-11-28 23:31:22,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:22,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545176691] [2023-11-28 23:31:22,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545176691] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:31:22,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:31:22,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-28 23:31:22,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622433571] [2023-11-28 23:31:22,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:31:22,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:31:22,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:22,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:31:22,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:31:22,363 INFO L87 Difference]: Start difference. First operand 475 states and 554 transitions. Second operand has 6 states, 5 states have (on average 33.0) internal successors, (165), 6 states have internal predecessors, (165), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-28 23:31:24,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:24,714 INFO L93 Difference]: Finished difference Result 528 states and 561 transitions. [2023-11-28 23:31:24,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:31:24,714 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 33.0) internal successors, (165), 6 states have internal predecessors, (165), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 122 [2023-11-28 23:31:24,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:24,716 INFO L225 Difference]: With dead ends: 528 [2023-11-28 23:31:24,717 INFO L226 Difference]: Without dead ends: 523 [2023-11-28 23:31:24,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:31:24,717 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 578 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:24,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 378 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-28 23:31:24,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-11-28 23:31:24,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 471. [2023-11-28 23:31:24,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 359 states have (on average 1.3621169916434541) internal successors, (489), 441 states have internal predecessors, (489), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:31:24,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 545 transitions. [2023-11-28 23:31:24,739 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 545 transitions. Word has length 122 [2023-11-28 23:31:24,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:24,739 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 545 transitions. [2023-11-28 23:31:24,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.0) internal successors, (165), 6 states have internal predecessors, (165), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-28 23:31:24,740 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 545 transitions. [2023-11-28 23:31:24,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-28 23:31:24,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:24,741 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 23:31:24,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-28 23:31:24,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:24,941 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:24,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:24,942 INFO L85 PathProgramCache]: Analyzing trace with hash -119896791, now seen corresponding path program 1 times [2023-11-28 23:31:24,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:24,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600799020] [2023-11-28 23:31:24,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:24,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:24,951 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:24,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [207297240] [2023-11-28 23:31:24,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:24,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:24,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:24,952 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:24,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-28 23:31:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:25,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:31:25,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:25,390 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 23:31:25,390 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:31:29,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:29,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600799020] [2023-11-28 23:31:29,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:29,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207297240] [2023-11-28 23:31:29,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207297240] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:31:29,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:31:29,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-28 23:31:29,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140915249] [2023-11-28 23:31:29,937 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:31:29,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:31:29,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:29,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:31:29,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=56, Unknown=1, NotChecked=0, Total=90 [2023-11-28 23:31:29,939 INFO L87 Difference]: Start difference. First operand 471 states and 545 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:31:31,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:31,512 INFO L93 Difference]: Finished difference Result 523 states and 552 transitions. [2023-11-28 23:31:31,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:31:31,513 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 123 [2023-11-28 23:31:31,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:31,515 INFO L225 Difference]: With dead ends: 523 [2023-11-28 23:31:31,515 INFO L226 Difference]: Without dead ends: 513 [2023-11-28 23:31:31,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=33, Invalid=56, Unknown=1, NotChecked=0, Total=90 [2023-11-28 23:31:31,516 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 150 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:31,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 368 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-28 23:31:31,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-11-28 23:31:31,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 474. [2023-11-28 23:31:31,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 362 states have (on average 1.339779005524862) internal successors, (485), 444 states have internal predecessors, (485), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:31:31,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 541 transitions. [2023-11-28 23:31:31,532 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 541 transitions. Word has length 123 [2023-11-28 23:31:31,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:31,532 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 541 transitions. [2023-11-28 23:31:31,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:31:31,533 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 541 transitions. [2023-11-28 23:31:31,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-28 23:31:31,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:31,534 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:31,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-28 23:31:31,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:31,734 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:31,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:31,734 INFO L85 PathProgramCache]: Analyzing trace with hash 578166874, now seen corresponding path program 1 times [2023-11-28 23:31:31,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:31,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841802840] [2023-11-28 23:31:31,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:31,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:31,747 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:31,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154873508] [2023-11-28 23:31:31,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:31,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:31,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:31,749 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:31,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-28 23:31:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:31,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:31:31,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 23:31:32,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:31:32,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:32,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841802840] [2023-11-28 23:31:32,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:32,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154873508] [2023-11-28 23:31:32,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154873508] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:31:32,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:31:32,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-28 23:31:32,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459738148] [2023-11-28 23:31:32,265 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:31:32,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:31:32,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:32,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:31:32,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:31:32,266 INFO L87 Difference]: Start difference. First operand 474 states and 541 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:31:34,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:34,142 INFO L93 Difference]: Finished difference Result 513 states and 542 transitions. [2023-11-28 23:31:34,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:31:34,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 124 [2023-11-28 23:31:34,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:34,145 INFO L225 Difference]: With dead ends: 513 [2023-11-28 23:31:34,145 INFO L226 Difference]: Without dead ends: 511 [2023-11-28 23:31:34,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:31:34,145 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 148 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:34,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 432 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-28 23:31:34,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2023-11-28 23:31:34,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 474. [2023-11-28 23:31:34,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 362 states have (on average 1.3342541436464088) internal successors, (483), 444 states have internal predecessors, (483), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:31:34,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 539 transitions. [2023-11-28 23:31:34,166 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 539 transitions. Word has length 124 [2023-11-28 23:31:34,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:34,167 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 539 transitions. [2023-11-28 23:31:34,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:31:34,167 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 539 transitions. [2023-11-28 23:31:34,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-28 23:31:34,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:34,168 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:34,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-28 23:31:34,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-28 23:31:34,369 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:34,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:34,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1081484130, now seen corresponding path program 1 times [2023-11-28 23:31:34,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:34,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264430415] [2023-11-28 23:31:34,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:34,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:34,380 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:34,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [403931214] [2023-11-28 23:31:34,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:34,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:34,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:34,382 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:34,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-28 23:31:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:34,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 23:31:34,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:35,352 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 23:31:35,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:31:35,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:35,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264430415] [2023-11-28 23:31:35,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:35,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403931214] [2023-11-28 23:31:35,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403931214] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:31:35,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:31:35,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-28 23:31:35,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740149255] [2023-11-28 23:31:35,927 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:31:35,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:31:35,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:35,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:31:35,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:31:35,929 INFO L87 Difference]: Start difference. First operand 474 states and 539 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:31:38,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:38,221 INFO L93 Difference]: Finished difference Result 474 states and 539 transitions. [2023-11-28 23:31:38,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:31:38,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 128 [2023-11-28 23:31:38,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:38,224 INFO L225 Difference]: With dead ends: 474 [2023-11-28 23:31:38,224 INFO L226 Difference]: Without dead ends: 457 [2023-11-28 23:31:38,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:31:38,225 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 325 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:38,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 267 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-28 23:31:38,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-28 23:31:38,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2023-11-28 23:31:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 362 states have (on average 1.2734806629834254) internal successors, (461), 427 states have internal predecessors, (461), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:31:38,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 517 transitions. [2023-11-28 23:31:38,240 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 517 transitions. Word has length 128 [2023-11-28 23:31:38,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:38,241 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 517 transitions. [2023-11-28 23:31:38,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:31:38,241 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 517 transitions. [2023-11-28 23:31:38,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-28 23:31:38,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:38,242 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:38,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-28 23:31:38,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-28 23:31:38,442 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:38,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:38,443 INFO L85 PathProgramCache]: Analyzing trace with hash -132015902, now seen corresponding path program 1 times [2023-11-28 23:31:38,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:38,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568093048] [2023-11-28 23:31:38,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:38,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:38,452 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:38,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437539509] [2023-11-28 23:31:38,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:38,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:38,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:38,454 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:38,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-28 23:31:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:38,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:31:38,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:39,039 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 23:31:39,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:31:50,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:50,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568093048] [2023-11-28 23:31:50,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:50,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437539509] [2023-11-28 23:31:50,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437539509] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:31:50,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:31:50,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-28 23:31:50,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735169892] [2023-11-28 23:31:50,326 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:31:50,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:31:50,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:50,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:31:50,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:31:50,327 INFO L87 Difference]: Start difference. First operand 457 states and 517 transitions. Second operand has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:31:53,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:53,968 INFO L93 Difference]: Finished difference Result 457 states and 517 transitions. [2023-11-28 23:31:53,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:31:53,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 132 [2023-11-28 23:31:53,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:53,970 INFO L225 Difference]: With dead ends: 457 [2023-11-28 23:31:53,970 INFO L226 Difference]: Without dead ends: 417 [2023-11-28 23:31:53,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2023-11-28 23:31:53,971 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 286 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:53,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 360 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-28 23:31:53,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-11-28 23:31:53,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2023-11-28 23:31:53,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 334 states have (on average 1.2544910179640718) internal successors, (419), 389 states have internal predecessors, (419), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-28 23:31:53,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 471 transitions. [2023-11-28 23:31:53,985 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 471 transitions. Word has length 132 [2023-11-28 23:31:53,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:53,985 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 471 transitions. [2023-11-28 23:31:53,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:31:53,985 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 471 transitions. [2023-11-28 23:31:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-28 23:31:53,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:53,986 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:53,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-28 23:31:54,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-28 23:31:54,187 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:54,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:54,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1691315262, now seen corresponding path program 1 times [2023-11-28 23:31:54,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:54,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879089475] [2023-11-28 23:31:54,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:54,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:54,201 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:54,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644111537] [2023-11-28 23:31:54,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:54,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:54,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:54,203 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:54,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-28 23:31:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:54,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:31:54,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:54,691 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-28 23:31:54,691 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:31:54,885 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-28 23:31:54,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:54,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879089475] [2023-11-28 23:31:54,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:54,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644111537] [2023-11-28 23:31:54,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644111537] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:31:54,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:31:54,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-28 23:31:54,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690966150] [2023-11-28 23:31:54,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:31:54,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:31:54,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:54,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:31:54,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:31:54,887 INFO L87 Difference]: Start difference. First operand 417 states and 471 transitions. Second operand has 8 states, 7 states have (on average 31.857142857142858) internal successors, (223), 8 states have internal predecessors, (223), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-28 23:31:58,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:31:58,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:58,988 INFO L93 Difference]: Finished difference Result 618 states and 651 transitions. [2023-11-28 23:31:58,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:31:58,988 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 31.857142857142858) internal successors, (223), 8 states have internal predecessors, (223), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 161 [2023-11-28 23:31:58,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:58,992 INFO L225 Difference]: With dead ends: 618 [2023-11-28 23:31:58,992 INFO L226 Difference]: Without dead ends: 617 [2023-11-28 23:31:58,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:31:58,993 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 456 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:58,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 349 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-28 23:31:58,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2023-11-28 23:31:59,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 450. [2023-11-28 23:31:59,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 365 states have (on average 1.263013698630137) internal successors, (461), 420 states have internal predecessors, (461), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:31:59,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 517 transitions. [2023-11-28 23:31:59,011 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 517 transitions. Word has length 161 [2023-11-28 23:31:59,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:59,011 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 517 transitions. [2023-11-28 23:31:59,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 31.857142857142858) internal successors, (223), 8 states have internal predecessors, (223), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-28 23:31:59,011 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 517 transitions. [2023-11-28 23:31:59,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-28 23:31:59,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:59,013 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-28 23:31:59,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-28 23:31:59,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-28 23:31:59,213 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:59,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:59,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1525566786, now seen corresponding path program 1 times [2023-11-28 23:31:59,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:59,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903062372] [2023-11-28 23:31:59,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:59,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:59,226 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:59,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760955356] [2023-11-28 23:31:59,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:59,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:59,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:59,227 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:59,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-28 23:31:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:59,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 23:31:59,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:31:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-28 23:31:59,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:31:59,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:31:59,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903062372] [2023-11-28 23:31:59,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:31:59,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760955356] [2023-11-28 23:31:59,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760955356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:31:59,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:31:59,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:31:59,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710954740] [2023-11-28 23:31:59,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:31:59,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:31:59,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:31:59,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:31:59,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:31:59,320 INFO L87 Difference]: Start difference. First operand 450 states and 517 transitions. Second operand has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-28 23:31:59,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:31:59,485 INFO L93 Difference]: Finished difference Result 450 states and 517 transitions. [2023-11-28 23:31:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:31:59,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 165 [2023-11-28 23:31:59,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:31:59,487 INFO L225 Difference]: With dead ends: 450 [2023-11-28 23:31:59,487 INFO L226 Difference]: Without dead ends: 449 [2023-11-28 23:31:59,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:31:59,488 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 161 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:31:59,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 145 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:31:59,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-28 23:31:59,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2023-11-28 23:31:59,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 365 states have (on average 1.2575342465753425) internal successors, (459), 419 states have internal predecessors, (459), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:31:59,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 515 transitions. [2023-11-28 23:31:59,503 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 515 transitions. Word has length 165 [2023-11-28 23:31:59,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:31:59,503 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 515 transitions. [2023-11-28 23:31:59,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-28 23:31:59,504 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 515 transitions. [2023-11-28 23:31:59,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-28 23:31:59,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:31:59,504 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:31:59,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-28 23:31:59,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-28 23:31:59,705 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:31:59,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:31:59,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1407991915, now seen corresponding path program 1 times [2023-11-28 23:31:59,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:31:59,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985798097] [2023-11-28 23:31:59,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:59,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:31:59,715 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:31:59,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1641078228] [2023-11-28 23:31:59,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:31:59,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:31:59,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:31:59,716 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:31:59,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-28 23:31:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:31:59,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 23:31:59,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-28 23:32:00,211 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:00,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:00,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985798097] [2023-11-28 23:32:00,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:00,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641078228] [2023-11-28 23:32:00,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641078228] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:32:00,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:32:00,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-28 23:32:00,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913497634] [2023-11-28 23:32:00,519 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:00,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:32:00,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:00,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:32:00,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:32:00,521 INFO L87 Difference]: Start difference. First operand 449 states and 515 transitions. Second operand has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 23:32:02,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:32:03,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:03,683 INFO L93 Difference]: Finished difference Result 475 states and 515 transitions. [2023-11-28 23:32:03,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:32:03,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 169 [2023-11-28 23:32:03,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:03,686 INFO L225 Difference]: With dead ends: 475 [2023-11-28 23:32:03,686 INFO L226 Difference]: Without dead ends: 474 [2023-11-28 23:32:03,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:32:03,687 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 83 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:03,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 464 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-28 23:32:03,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-28 23:32:03,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 449. [2023-11-28 23:32:03,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 365 states have (on average 1.2547945205479452) internal successors, (458), 419 states have internal predecessors, (458), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:32:03,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 514 transitions. [2023-11-28 23:32:03,702 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 514 transitions. Word has length 169 [2023-11-28 23:32:03,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:03,702 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 514 transitions. [2023-11-28 23:32:03,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 23:32:03,703 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 514 transitions. [2023-11-28 23:32:03,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-28 23:32:03,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:03,704 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:32:03,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-28 23:32:03,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-28 23:32:03,904 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:03,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:03,904 INFO L85 PathProgramCache]: Analyzing trace with hash 698076591, now seen corresponding path program 1 times [2023-11-28 23:32:03,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:03,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966155504] [2023-11-28 23:32:03,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:03,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:03,914 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:03,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1649000820] [2023-11-28 23:32:03,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:03,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:03,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:03,915 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:03,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-28 23:32:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:32:03,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:32:03,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:04,190 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-28 23:32:04,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-28 23:32:04,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:04,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966155504] [2023-11-28 23:32:04,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:04,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649000820] [2023-11-28 23:32:04,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649000820] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:32:04,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:32:04,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-28 23:32:04,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160092397] [2023-11-28 23:32:04,478 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:04,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:32:04,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:04,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:32:04,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:32:04,479 INFO L87 Difference]: Start difference. First operand 449 states and 514 transitions. Second operand has 8 states, 7 states have (on average 25.0) internal successors, (175), 8 states have internal predecessors, (175), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-28 23:32:04,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:04,781 INFO L93 Difference]: Finished difference Result 474 states and 514 transitions. [2023-11-28 23:32:04,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:32:04,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 25.0) internal successors, (175), 8 states have internal predecessors, (175), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 170 [2023-11-28 23:32:04,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:04,784 INFO L225 Difference]: With dead ends: 474 [2023-11-28 23:32:04,784 INFO L226 Difference]: Without dead ends: 469 [2023-11-28 23:32:04,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 331 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:32:04,785 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 217 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:04,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 583 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:32:04,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-28 23:32:04,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 449. [2023-11-28 23:32:04,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 365 states have (on average 1.2410958904109588) internal successors, (453), 419 states have internal predecessors, (453), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:32:04,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 509 transitions. [2023-11-28 23:32:04,803 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 509 transitions. Word has length 170 [2023-11-28 23:32:04,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:04,803 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 509 transitions. [2023-11-28 23:32:04,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 25.0) internal successors, (175), 8 states have internal predecessors, (175), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-28 23:32:04,804 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 509 transitions. [2023-11-28 23:32:04,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:32:04,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:04,805 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:32:04,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-28 23:32:05,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-28 23:32:05,005 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:05,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:05,005 INFO L85 PathProgramCache]: Analyzing trace with hash 836711793, now seen corresponding path program 1 times [2023-11-28 23:32:05,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:05,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000335955] [2023-11-28 23:32:05,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:05,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:05,015 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:05,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1832290482] [2023-11-28 23:32:05,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:05,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:05,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:05,017 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:05,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-28 23:32:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:32:05,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:32:05,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:05,308 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-28 23:32:05,309 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:05,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:05,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000335955] [2023-11-28 23:32:05,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:05,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832290482] [2023-11-28 23:32:05,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832290482] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:32:05,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:32:05,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-28 23:32:05,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617460988] [2023-11-28 23:32:05,880 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:05,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:32:05,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:05,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:32:05,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:32:05,882 INFO L87 Difference]: Start difference. First operand 449 states and 509 transitions. Second operand has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 23:32:06,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:06,339 INFO L93 Difference]: Finished difference Result 469 states and 509 transitions. [2023-11-28 23:32:06,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 23:32:06,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 172 [2023-11-28 23:32:06,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:06,342 INFO L225 Difference]: With dead ends: 469 [2023-11-28 23:32:06,342 INFO L226 Difference]: Without dead ends: 464 [2023-11-28 23:32:06,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:32:06,343 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 70 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:06,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 483 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 23:32:06,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-11-28 23:32:06,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 449. [2023-11-28 23:32:06,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 365 states have (on average 1.2273972602739727) internal successors, (448), 419 states have internal predecessors, (448), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:32:06,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 504 transitions. [2023-11-28 23:32:06,364 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 504 transitions. Word has length 172 [2023-11-28 23:32:06,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:06,364 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 504 transitions. [2023-11-28 23:32:06,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 23:32:06,364 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 504 transitions. [2023-11-28 23:32:06,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:32:06,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:06,366 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:32:06,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-28 23:32:06,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-28 23:32:06,566 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:06,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:06,567 INFO L85 PathProgramCache]: Analyzing trace with hash 168261999, now seen corresponding path program 1 times [2023-11-28 23:32:06,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:06,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887286503] [2023-11-28 23:32:06,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:06,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:06,579 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:06,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1366859182] [2023-11-28 23:32:06,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:06,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:06,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:06,581 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:06,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-28 23:32:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:32:06,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:32:06,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-28 23:32:07,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:07,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:07,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887286503] [2023-11-28 23:32:07,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:07,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366859182] [2023-11-28 23:32:07,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366859182] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:32:07,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:32:07,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-28 23:32:07,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858020839] [2023-11-28 23:32:07,398 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:07,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:32:07,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:07,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:32:07,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:32:07,400 INFO L87 Difference]: Start difference. First operand 449 states and 504 transitions. Second operand has 7 states, 6 states have (on average 20.166666666666668) internal successors, (121), 7 states have internal predecessors, (121), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 23:32:08,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:08,983 INFO L93 Difference]: Finished difference Result 464 states and 504 transitions. [2023-11-28 23:32:08,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:32:08,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.166666666666668) internal successors, (121), 7 states have internal predecessors, (121), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 173 [2023-11-28 23:32:08,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:08,986 INFO L225 Difference]: With dead ends: 464 [2023-11-28 23:32:08,986 INFO L226 Difference]: Without dead ends: 462 [2023-11-28 23:32:08,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:32:08,987 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 125 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:08,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 478 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-28 23:32:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-11-28 23:32:08,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 449. [2023-11-28 23:32:09,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 365 states have (on average 1.2219178082191782) internal successors, (446), 419 states have internal predecessors, (446), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:32:09,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 502 transitions. [2023-11-28 23:32:09,001 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 502 transitions. Word has length 173 [2023-11-28 23:32:09,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:09,002 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 502 transitions. [2023-11-28 23:32:09,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.166666666666668) internal successors, (121), 7 states have internal predecessors, (121), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 23:32:09,002 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 502 transitions. [2023-11-28 23:32:09,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-28 23:32:09,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:09,003 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:32:09,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-28 23:32:09,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:09,204 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:09,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:09,204 INFO L85 PathProgramCache]: Analyzing trace with hash 921154867, now seen corresponding path program 1 times [2023-11-28 23:32:09,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:09,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254359195] [2023-11-28 23:32:09,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:09,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:09,213 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:09,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000587065] [2023-11-28 23:32:09,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:09,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:09,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:09,215 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:09,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-28 23:32:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:32:09,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:32:09,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:10,108 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-28 23:32:10,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:10,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:10,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254359195] [2023-11-28 23:32:10,326 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:10,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000587065] [2023-11-28 23:32:10,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000587065] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:32:10,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:32:10,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-28 23:32:10,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83456370] [2023-11-28 23:32:10,326 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:10,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:32:10,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:10,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:32:10,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:32:10,327 INFO L87 Difference]: Start difference. First operand 449 states and 502 transitions. Second operand has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 23:32:12,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:12,837 INFO L93 Difference]: Finished difference Result 449 states and 502 transitions. [2023-11-28 23:32:12,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:32:12,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 174 [2023-11-28 23:32:12,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:12,840 INFO L225 Difference]: With dead ends: 449 [2023-11-28 23:32:12,840 INFO L226 Difference]: Without dead ends: 447 [2023-11-28 23:32:12,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:32:12,841 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 502 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:12,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 216 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-28 23:32:12,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-11-28 23:32:12,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2023-11-28 23:32:12,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 365 states have (on average 1.210958904109589) internal successors, (442), 417 states have internal predecessors, (442), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:32:12,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 498 transitions. [2023-11-28 23:32:12,855 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 498 transitions. Word has length 174 [2023-11-28 23:32:12,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:12,856 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 498 transitions. [2023-11-28 23:32:12,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 23:32:12,856 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 498 transitions. [2023-11-28 23:32:12,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-28 23:32:12,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:12,857 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:32:12,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-28 23:32:13,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-28 23:32:13,057 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:13,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:13,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1539470719, now seen corresponding path program 1 times [2023-11-28 23:32:13,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:13,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144956640] [2023-11-28 23:32:13,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:13,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:13,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:13,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1529272753] [2023-11-28 23:32:13,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:13,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:13,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:13,078 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:13,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-28 23:32:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:32:13,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 23:32:13,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-28 23:32:13,878 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:14,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:14,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144956640] [2023-11-28 23:32:14,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:14,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529272753] [2023-11-28 23:32:14,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529272753] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:32:14,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:32:14,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-28 23:32:14,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650781616] [2023-11-28 23:32:14,805 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:14,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:32:14,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:14,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:32:14,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-11-28 23:32:14,807 INFO L87 Difference]: Start difference. First operand 447 states and 498 transitions. Second operand has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-28 23:32:15,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:15,802 INFO L93 Difference]: Finished difference Result 458 states and 498 transitions. [2023-11-28 23:32:15,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:32:15,802 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 192 [2023-11-28 23:32:15,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:15,804 INFO L225 Difference]: With dead ends: 458 [2023-11-28 23:32:15,804 INFO L226 Difference]: Without dead ends: 455 [2023-11-28 23:32:15,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2023-11-28 23:32:15,805 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 147 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:15,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 343 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-28 23:32:15,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-28 23:32:15,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 447. [2023-11-28 23:32:15,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 365 states have (on average 1.2027397260273973) internal successors, (439), 417 states have internal predecessors, (439), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:32:15,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 495 transitions. [2023-11-28 23:32:15,822 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 495 transitions. Word has length 192 [2023-11-28 23:32:15,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:15,822 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 495 transitions. [2023-11-28 23:32:15,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-28 23:32:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 495 transitions. [2023-11-28 23:32:15,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-28 23:32:15,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:15,823 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:32:15,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-28 23:32:16,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-28 23:32:16,024 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:16,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:16,024 INFO L85 PathProgramCache]: Analyzing trace with hash -478951810, now seen corresponding path program 1 times [2023-11-28 23:32:16,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:16,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180919314] [2023-11-28 23:32:16,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:16,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:16,033 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:16,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925636040] [2023-11-28 23:32:16,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:16,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:16,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:16,035 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:16,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-28 23:32:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:32:16,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 23:32:16,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-28 23:32:16,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:16,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:16,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180919314] [2023-11-28 23:32:16,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:16,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925636040] [2023-11-28 23:32:16,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925636040] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:32:16,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:32:16,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-28 23:32:16,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285018082] [2023-11-28 23:32:16,677 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:16,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:32:16,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:16,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:32:16,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:32:16,678 INFO L87 Difference]: Start difference. First operand 447 states and 495 transitions. Second operand has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 23:32:17,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:17,991 INFO L93 Difference]: Finished difference Result 447 states and 495 transitions. [2023-11-28 23:32:17,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:32:17,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 193 [2023-11-28 23:32:17,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:17,994 INFO L225 Difference]: With dead ends: 447 [2023-11-28 23:32:17,994 INFO L226 Difference]: Without dead ends: 443 [2023-11-28 23:32:17,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:32:17,995 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 515 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:17,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 119 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-28 23:32:17,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-28 23:32:18,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2023-11-28 23:32:18,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 365 states have (on average 1.189041095890411) internal successors, (434), 413 states have internal predecessors, (434), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:32:18,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 490 transitions. [2023-11-28 23:32:18,017 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 490 transitions. Word has length 193 [2023-11-28 23:32:18,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:18,017 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 490 transitions. [2023-11-28 23:32:18,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 23:32:18,017 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 490 transitions. [2023-11-28 23:32:18,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-28 23:32:18,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:18,019 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-28 23:32:18,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-28 23:32:18,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:18,219 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:18,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:18,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1102486096, now seen corresponding path program 1 times [2023-11-28 23:32:18,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:18,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147064009] [2023-11-28 23:32:18,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:18,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:18,230 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:18,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303451385] [2023-11-28 23:32:18,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:18,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:18,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:18,231 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:18,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-28 23:32:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:32:18,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:32:18,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:18,424 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-28 23:32:18,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:18,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:18,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147064009] [2023-11-28 23:32:18,502 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:18,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303451385] [2023-11-28 23:32:18,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303451385] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:32:18,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:32:18,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-28 23:32:18,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221290717] [2023-11-28 23:32:18,502 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:18,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:32:18,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:18,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:32:18,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:32:18,503 INFO L87 Difference]: Start difference. First operand 443 states and 490 transitions. Second operand has 5 states, 4 states have (on average 34.25) internal successors, (137), 5 states have internal predecessors, (137), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-28 23:32:18,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:18,637 INFO L93 Difference]: Finished difference Result 584 states and 616 transitions. [2023-11-28 23:32:18,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 23:32:18,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 34.25) internal successors, (137), 5 states have internal predecessors, (137), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 194 [2023-11-28 23:32:18,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:18,640 INFO L225 Difference]: With dead ends: 584 [2023-11-28 23:32:18,640 INFO L226 Difference]: Without dead ends: 583 [2023-11-28 23:32:18,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:32:18,641 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 285 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:18,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 703 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:32:18,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-11-28 23:32:18,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 443. [2023-11-28 23:32:18,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 365 states have (on average 1.1863013698630136) internal successors, (433), 413 states have internal predecessors, (433), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:32:18,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 489 transitions. [2023-11-28 23:32:18,656 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 489 transitions. Word has length 194 [2023-11-28 23:32:18,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:18,656 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 489 transitions. [2023-11-28 23:32:18,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 34.25) internal successors, (137), 5 states have internal predecessors, (137), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-28 23:32:18,657 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 489 transitions. [2023-11-28 23:32:18,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-28 23:32:18,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:18,658 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:32:18,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-28 23:32:18,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:18,858 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:18,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:18,859 INFO L85 PathProgramCache]: Analyzing trace with hash -545648702, now seen corresponding path program 1 times [2023-11-28 23:32:18,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:18,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066493797] [2023-11-28 23:32:18,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:18,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:18,869 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:18,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1692425210] [2023-11-28 23:32:18,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:18,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:18,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:18,870 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:18,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-28 23:32:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:32:18,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 23:32:18,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:19,442 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-28 23:32:19,442 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:20,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:20,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066493797] [2023-11-28 23:32:20,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:20,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692425210] [2023-11-28 23:32:20,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692425210] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:32:20,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:32:20,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-28 23:32:20,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779636350] [2023-11-28 23:32:20,504 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:20,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:32:20,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:20,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:32:20,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=136, Unknown=1, NotChecked=0, Total=182 [2023-11-28 23:32:20,506 INFO L87 Difference]: Start difference. First operand 443 states and 489 transitions. Second operand has 8 states, 7 states have (on average 20.0) internal successors, (140), 8 states have internal predecessors, (140), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-28 23:32:21,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:21,338 INFO L93 Difference]: Finished difference Result 450 states and 489 transitions. [2023-11-28 23:32:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:32:21,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.0) internal successors, (140), 8 states have internal predecessors, (140), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 197 [2023-11-28 23:32:21,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:21,341 INFO L225 Difference]: With dead ends: 450 [2023-11-28 23:32:21,341 INFO L226 Difference]: Without dead ends: 448 [2023-11-28 23:32:21,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=157, Unknown=1, NotChecked=0, Total=210 [2023-11-28 23:32:21,342 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 94 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:21,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 341 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 23:32:21,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-11-28 23:32:21,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 443. [2023-11-28 23:32:21,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 365 states have (on average 1.180821917808219) internal successors, (431), 413 states have internal predecessors, (431), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 23:32:21,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 487 transitions. [2023-11-28 23:32:21,364 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 487 transitions. Word has length 197 [2023-11-28 23:32:21,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:21,364 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 487 transitions. [2023-11-28 23:32:21,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.0) internal successors, (140), 8 states have internal predecessors, (140), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-28 23:32:21,364 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 487 transitions. [2023-11-28 23:32:21,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-11-28 23:32:21,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:21,366 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-28 23:32:21,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-28 23:32:21,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:21,566 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:21,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:21,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1967822511, now seen corresponding path program 2 times [2023-11-28 23:32:21,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:21,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078303348] [2023-11-28 23:32:21,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:21,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:21,579 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:21,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1467900505] [2023-11-28 23:32:21,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:32:21,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:21,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:21,581 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:21,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-28 23:32:21,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:32:21,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:32:21,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 23:32:21,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 113 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-28 23:32:22,041 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 113 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-28 23:32:22,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:22,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078303348] [2023-11-28 23:32:22,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:22,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467900505] [2023-11-28 23:32:22,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467900505] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:32:22,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:32:22,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-28 23:32:22,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838530305] [2023-11-28 23:32:22,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:22,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:32:22,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:22,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:32:22,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:32:22,260 INFO L87 Difference]: Start difference. First operand 443 states and 487 transitions. Second operand has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 10 states have internal predecessors, (277), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-28 23:32:26,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:26,963 INFO L93 Difference]: Finished difference Result 614 states and 650 transitions. [2023-11-28 23:32:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:32:26,963 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 10 states have internal predecessors, (277), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 203 [2023-11-28 23:32:26,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:26,966 INFO L225 Difference]: With dead ends: 614 [2023-11-28 23:32:26,967 INFO L226 Difference]: Without dead ends: 613 [2023-11-28 23:32:26,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=107, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:32:26,967 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 755 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:26,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 509 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-28 23:32:26,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-11-28 23:32:26,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 473. [2023-11-28 23:32:26,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 392 states have (on average 1.1734693877551021) internal successors, (460), 440 states have internal predecessors, (460), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-28 23:32:26,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 522 transitions. [2023-11-28 23:32:26,993 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 522 transitions. Word has length 203 [2023-11-28 23:32:26,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:26,994 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 522 transitions. [2023-11-28 23:32:26,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 10 states have internal predecessors, (277), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-28 23:32:26,994 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 522 transitions. [2023-11-28 23:32:26,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-11-28 23:32:26,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:26,996 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-28 23:32:27,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-28 23:32:27,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:27,196 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:27,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:27,197 INFO L85 PathProgramCache]: Analyzing trace with hash 872955794, now seen corresponding path program 2 times [2023-11-28 23:32:27,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:27,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503000427] [2023-11-28 23:32:27,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:27,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:27,207 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:27,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045419481] [2023-11-28 23:32:27,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:32:27,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:27,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:27,209 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:27,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-28 23:32:27,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:32:27,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:32:27,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-28 23:32:27,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:28,119 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-28 23:32:28,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:28,775 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-28 23:32:28,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:28,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503000427] [2023-11-28 23:32:28,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:28,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045419481] [2023-11-28 23:32:28,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045419481] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:32:28,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:32:28,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2023-11-28 23:32:28,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191962273] [2023-11-28 23:32:28,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:28,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 23:32:28,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:28,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 23:32:28,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-28 23:32:28,777 INFO L87 Difference]: Start difference. First operand 473 states and 522 transitions. Second operand has 18 states, 17 states have (on average 16.41176470588235) internal successors, (279), 18 states have internal predecessors, (279), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-28 23:32:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:36,061 INFO L93 Difference]: Finished difference Result 621 states and 664 transitions. [2023-11-28 23:32:36,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-28 23:32:36,062 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 16.41176470588235) internal successors, (279), 18 states have internal predecessors, (279), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 204 [2023-11-28 23:32:36,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:36,064 INFO L225 Difference]: With dead ends: 621 [2023-11-28 23:32:36,064 INFO L226 Difference]: Without dead ends: 474 [2023-11-28 23:32:36,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=321, Invalid=549, Unknown=0, NotChecked=0, Total=870 [2023-11-28 23:32:36,065 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 1604 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 3358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:36,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 679 Invalid, 3358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 3197 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-28 23:32:36,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-28 23:32:36,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 446. [2023-11-28 23:32:36,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 368 states have (on average 1.1630434782608696) internal successors, (428), 414 states have internal predecessors, (428), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-28 23:32:36,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 488 transitions. [2023-11-28 23:32:36,083 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 488 transitions. Word has length 204 [2023-11-28 23:32:36,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:36,083 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 488 transitions. [2023-11-28 23:32:36,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 16.41176470588235) internal successors, (279), 18 states have internal predecessors, (279), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-28 23:32:36,083 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 488 transitions. [2023-11-28 23:32:36,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-28 23:32:36,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:36,084 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:32:36,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-28 23:32:36,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-28 23:32:36,285 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:36,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:36,285 INFO L85 PathProgramCache]: Analyzing trace with hash -146920684, now seen corresponding path program 2 times [2023-11-28 23:32:36,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:36,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269181606] [2023-11-28 23:32:36,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:36,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:36,300 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:36,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [817839220] [2023-11-28 23:32:36,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:32:36,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:36,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:36,302 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:36,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-28 23:32:36,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:32:36,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:32:36,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-28 23:32:36,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-28 23:32:37,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:37,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:37,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269181606] [2023-11-28 23:32:37,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:37,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817839220] [2023-11-28 23:32:37,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817839220] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:32:37,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:32:37,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-28 23:32:37,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397628029] [2023-11-28 23:32:37,665 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:37,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:32:37,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:37,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:32:37,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:32:37,667 INFO L87 Difference]: Start difference. First operand 446 states and 488 transitions. Second operand has 10 states, 9 states have (on average 19.22222222222222) internal successors, (173), 10 states have internal predecessors, (173), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-28 23:32:40,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:40,350 INFO L93 Difference]: Finished difference Result 456 states and 488 transitions. [2023-11-28 23:32:40,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 23:32:40,351 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 19.22222222222222) internal successors, (173), 10 states have internal predecessors, (173), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 250 [2023-11-28 23:32:40,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:40,353 INFO L225 Difference]: With dead ends: 456 [2023-11-28 23:32:40,353 INFO L226 Difference]: Without dead ends: 455 [2023-11-28 23:32:40,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2023-11-28 23:32:40,354 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 128 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:40,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 527 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-28 23:32:40,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-28 23:32:40,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 446. [2023-11-28 23:32:40,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 368 states have (on average 1.1603260869565217) internal successors, (427), 414 states have internal predecessors, (427), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-28 23:32:40,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 487 transitions. [2023-11-28 23:32:40,372 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 487 transitions. Word has length 250 [2023-11-28 23:32:40,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:40,372 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 487 transitions. [2023-11-28 23:32:40,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 19.22222222222222) internal successors, (173), 10 states have internal predecessors, (173), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-28 23:32:40,373 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 487 transitions. [2023-11-28 23:32:40,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-28 23:32:40,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:40,374 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:32:40,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-28 23:32:40,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-28 23:32:40,575 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:40,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:40,575 INFO L85 PathProgramCache]: Analyzing trace with hash -259573722, now seen corresponding path program 2 times [2023-11-28 23:32:40,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:40,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685321889] [2023-11-28 23:32:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:40,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:40,586 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:40,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314679317] [2023-11-28 23:32:40,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:32:40,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:40,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:40,587 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:40,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-28 23:32:40,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:32:40,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:32:40,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 23:32:40,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:40,994 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-28 23:32:40,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:41,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:41,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685321889] [2023-11-28 23:32:41,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:41,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314679317] [2023-11-28 23:32:41,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314679317] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:32:41,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:32:41,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-28 23:32:41,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848256656] [2023-11-28 23:32:41,342 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:41,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:32:41,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:41,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:32:41,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:32:41,344 INFO L87 Difference]: Start difference. First operand 446 states and 487 transitions. Second operand has 8 states, 7 states have (on average 24.857142857142858) internal successors, (174), 8 states have internal predecessors, (174), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-28 23:32:42,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:42,310 INFO L93 Difference]: Finished difference Result 455 states and 487 transitions. [2023-11-28 23:32:42,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:32:42,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.857142857142858) internal successors, (174), 8 states have internal predecessors, (174), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 251 [2023-11-28 23:32:42,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:42,313 INFO L225 Difference]: With dead ends: 455 [2023-11-28 23:32:42,313 INFO L226 Difference]: Without dead ends: 454 [2023-11-28 23:32:42,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:32:42,314 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 116 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:42,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 934 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 23:32:42,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-11-28 23:32:42,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 446. [2023-11-28 23:32:42,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 368 states have (on average 1.1576086956521738) internal successors, (426), 414 states have internal predecessors, (426), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-28 23:32:42,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 486 transitions. [2023-11-28 23:32:42,332 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 486 transitions. Word has length 251 [2023-11-28 23:32:42,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:42,332 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 486 transitions. [2023-11-28 23:32:42,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.857142857142858) internal successors, (174), 8 states have internal predecessors, (174), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-28 23:32:42,333 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 486 transitions. [2023-11-28 23:32:42,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-28 23:32:42,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:42,334 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:32:42,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-28 23:32:42,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-28 23:32:42,534 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:42,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:42,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2019432552, now seen corresponding path program 2 times [2023-11-28 23:32:42,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:42,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248969978] [2023-11-28 23:32:42,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:42,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:42,545 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:42,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1180671216] [2023-11-28 23:32:42,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:32:42,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:42,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:42,547 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:42,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-28 23:32:42,651 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:32:42,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:32:42,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-28 23:32:42,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:43,441 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-28 23:32:43,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:43,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:43,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248969978] [2023-11-28 23:32:43,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:43,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180671216] [2023-11-28 23:32:43,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180671216] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:32:43,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:32:43,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-28 23:32:43,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276545108] [2023-11-28 23:32:43,693 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:43,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:32:43,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:43,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:32:43,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:32:43,695 INFO L87 Difference]: Start difference. First operand 446 states and 486 transitions. Second operand has 9 states, 8 states have (on average 22.125) internal successors, (177), 9 states have internal predecessors, (177), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-28 23:32:47,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:47,292 INFO L93 Difference]: Finished difference Result 446 states and 486 transitions. [2023-11-28 23:32:47,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 23:32:47,292 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 22.125) internal successors, (177), 9 states have internal predecessors, (177), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 254 [2023-11-28 23:32:47,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:47,294 INFO L225 Difference]: With dead ends: 446 [2023-11-28 23:32:47,294 INFO L226 Difference]: Without dead ends: 443 [2023-11-28 23:32:47,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-11-28 23:32:47,295 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 733 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:47,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 179 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-28 23:32:47,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-28 23:32:47,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2023-11-28 23:32:47,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 368 states have (on average 1.1440217391304348) internal successors, (421), 411 states have internal predecessors, (421), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-28 23:32:47,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 481 transitions. [2023-11-28 23:32:47,314 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 481 transitions. Word has length 254 [2023-11-28 23:32:47,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:47,314 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 481 transitions. [2023-11-28 23:32:47,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 22.125) internal successors, (177), 9 states have internal predecessors, (177), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-28 23:32:47,314 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 481 transitions. [2023-11-28 23:32:47,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-28 23:32:47,316 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:47,316 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-28 23:32:47,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-28 23:32:47,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-28 23:32:47,517 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:47,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:47,517 INFO L85 PathProgramCache]: Analyzing trace with hash -782186094, now seen corresponding path program 1 times [2023-11-28 23:32:47,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:47,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180144895] [2023-11-28 23:32:47,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:47,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:47,534 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:47,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870170328] [2023-11-28 23:32:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:47,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:47,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:47,536 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:47,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-28 23:32:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:32:47,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 23:32:47,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:47,790 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-28 23:32:47,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:48,117 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-28 23:32:48,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:48,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180144895] [2023-11-28 23:32:48,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:48,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870170328] [2023-11-28 23:32:48,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870170328] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:32:48,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:32:48,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-28 23:32:48,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756124954] [2023-11-28 23:32:48,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:48,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:32:48,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:48,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:32:48,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:32:48,119 INFO L87 Difference]: Start difference. First operand 443 states and 481 transitions. Second operand has 10 states, 9 states have (on average 41.0) internal successors, (369), 10 states have internal predecessors, (369), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-28 23:32:48,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:48,461 INFO L93 Difference]: Finished difference Result 636 states and 676 transitions. [2023-11-28 23:32:48,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:32:48,461 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 41.0) internal successors, (369), 10 states have internal predecessors, (369), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 264 [2023-11-28 23:32:48,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:48,464 INFO L225 Difference]: With dead ends: 636 [2023-11-28 23:32:48,464 INFO L226 Difference]: Without dead ends: 634 [2023-11-28 23:32:48,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:32:48,465 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 918 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:48,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 1519 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:32:48,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2023-11-28 23:32:48,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 442. [2023-11-28 23:32:48,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 368 states have (on average 1.1358695652173914) internal successors, (418), 410 states have internal predecessors, (418), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-28 23:32:48,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 478 transitions. [2023-11-28 23:32:48,486 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 478 transitions. Word has length 264 [2023-11-28 23:32:48,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:48,486 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 478 transitions. [2023-11-28 23:32:48,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 41.0) internal successors, (369), 10 states have internal predecessors, (369), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-28 23:32:48,486 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 478 transitions. [2023-11-28 23:32:48,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-28 23:32:48,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:48,488 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:32:48,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-28 23:32:48,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:48,689 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:48,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:48,689 INFO L85 PathProgramCache]: Analyzing trace with hash -852939617, now seen corresponding path program 1 times [2023-11-28 23:32:48,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:48,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767072550] [2023-11-28 23:32:48,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:48,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:48,700 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:48,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850383020] [2023-11-28 23:32:48,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:48,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:48,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:48,701 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:48,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-28 23:32:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:32:48,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 23:32:48,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:49,108 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-28 23:32:49,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:49,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:49,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767072550] [2023-11-28 23:32:49,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:49,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850383020] [2023-11-28 23:32:49,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850383020] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:32:49,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:32:49,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-28 23:32:49,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854519858] [2023-11-28 23:32:49,446 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:49,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:32:49,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:49,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:32:49,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:32:49,448 INFO L87 Difference]: Start difference. First operand 442 states and 478 transitions. Second operand has 8 states, 7 states have (on average 26.285714285714285) internal successors, (184), 8 states have internal predecessors, (184), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-28 23:32:50,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:32:50,513 INFO L93 Difference]: Finished difference Result 448 states and 478 transitions. [2023-11-28 23:32:50,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:32:50,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 26.285714285714285) internal successors, (184), 8 states have internal predecessors, (184), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 266 [2023-11-28 23:32:50,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:32:50,516 INFO L225 Difference]: With dead ends: 448 [2023-11-28 23:32:50,516 INFO L226 Difference]: Without dead ends: 447 [2023-11-28 23:32:50,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:32:50,517 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 102 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:32:50,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 906 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-28 23:32:50,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-11-28 23:32:50,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 442. [2023-11-28 23:32:50,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 368 states have (on average 1.1331521739130435) internal successors, (417), 410 states have internal predecessors, (417), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-28 23:32:50,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 477 transitions. [2023-11-28 23:32:50,536 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 477 transitions. Word has length 266 [2023-11-28 23:32:50,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:32:50,537 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 477 transitions. [2023-11-28 23:32:50,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 26.285714285714285) internal successors, (184), 8 states have internal predecessors, (184), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-28 23:32:50,537 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 477 transitions. [2023-11-28 23:32:50,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-11-28 23:32:50,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:32:50,539 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:32:50,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-28 23:32:50,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:50,740 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:32:50,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:32:50,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1620332104, now seen corresponding path program 2 times [2023-11-28 23:32:50,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:32:50,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63999841] [2023-11-28 23:32:50,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:32:50,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:32:50,787 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:32:50,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006594202] [2023-11-28 23:32:50,787 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:32:50,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:32:50,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:32:50,789 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:32:50,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-28 23:32:50,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:32:50,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:32:50,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-28 23:32:50,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:32:51,825 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-28 23:32:51,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:32:55,979 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-28 23:32:55,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:32:55,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63999841] [2023-11-28 23:32:55,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:32:55,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006594202] [2023-11-28 23:32:55,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006594202] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:32:55,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:32:55,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2023-11-28 23:32:55,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871663217] [2023-11-28 23:32:55,980 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:32:55,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-28 23:32:55,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:32:55,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-28 23:32:55,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2023-11-28 23:32:55,983 INFO L87 Difference]: Start difference. First operand 442 states and 477 transitions. Second operand has 21 states, 20 states have (on average 18.85) internal successors, (377), 21 states have internal predecessors, (377), 9 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 9 states have call predecessors, (34), 9 states have call successors, (34) [2023-11-28 23:33:15,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:33:19,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:33:20,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:33:33,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:33:36,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:33:36,305 INFO L93 Difference]: Finished difference Result 705 states and 751 transitions. [2023-11-28 23:33:36,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-28 23:33:36,306 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 18.85) internal successors, (377), 21 states have internal predecessors, (377), 9 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 9 states have call predecessors, (34), 9 states have call successors, (34) Word has length 273 [2023-11-28 23:33:36,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:33:36,308 INFO L225 Difference]: With dead ends: 705 [2023-11-28 23:33:36,308 INFO L226 Difference]: Without dead ends: 702 [2023-11-28 23:33:36,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=323, Invalid=799, Unknown=0, NotChecked=0, Total=1122 [2023-11-28 23:33:36,309 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 675 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 3242 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 3242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:33:36,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 520 Invalid, 3292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 3242 Invalid, 0 Unknown, 0 Unchecked, 35.5s Time] [2023-11-28 23:33:36,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-11-28 23:33:36,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 557. [2023-11-28 23:33:36,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 474 states have (on average 1.1540084388185654) internal successors, (547), 516 states have internal predecessors, (547), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-28 23:33:36,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 625 transitions. [2023-11-28 23:33:36,357 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 625 transitions. Word has length 273 [2023-11-28 23:33:36,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:33:36,357 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 625 transitions. [2023-11-28 23:33:36,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 18.85) internal successors, (377), 21 states have internal predecessors, (377), 9 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 9 states have call predecessors, (34), 9 states have call successors, (34) [2023-11-28 23:33:36,358 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 625 transitions. [2023-11-28 23:33:36,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-11-28 23:33:36,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:33:36,360 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:33:36,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-28 23:33:36,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:33:36,560 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:33:36,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:33:36,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1679371541, now seen corresponding path program 2 times [2023-11-28 23:33:36,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:33:36,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032865287] [2023-11-28 23:33:36,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:33:36,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:33:36,572 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:33:36,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183827182] [2023-11-28 23:33:36,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:33:36,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:33:36,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:33:36,573 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:33:36,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-28 23:33:36,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:33:36,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:33:36,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 23:33:36,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:33:37,312 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-28 23:33:37,312 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:33:39,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:33:39,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032865287] [2023-11-28 23:33:39,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:33:39,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183827182] [2023-11-28 23:33:39,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183827182] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:33:39,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:33:39,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-28 23:33:39,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148159273] [2023-11-28 23:33:39,168 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:33:39,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:33:39,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:33:39,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:33:39,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:33:39,169 INFO L87 Difference]: Start difference. First operand 557 states and 625 transitions. Second operand has 9 states, 8 states have (on average 24.5) internal successors, (196), 9 states have internal predecessors, (196), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-28 23:33:42,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:33:42,160 INFO L93 Difference]: Finished difference Result 557 states and 625 transitions. [2023-11-28 23:33:42,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 23:33:42,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 24.5) internal successors, (196), 9 states have internal predecessors, (196), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 278 [2023-11-28 23:33:42,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:33:42,163 INFO L225 Difference]: With dead ends: 557 [2023-11-28 23:33:42,163 INFO L226 Difference]: Without dead ends: 521 [2023-11-28 23:33:42,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2023-11-28 23:33:42,164 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 573 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:33:42,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 279 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-28 23:33:42,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-11-28 23:33:42,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2023-11-28 23:33:42,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 442 states have (on average 1.1561085972850678) internal successors, (511), 482 states have internal predecessors, (511), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-28 23:33:42,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 585 transitions. [2023-11-28 23:33:42,194 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 585 transitions. Word has length 278 [2023-11-28 23:33:42,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:33:42,194 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 585 transitions. [2023-11-28 23:33:42,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 24.5) internal successors, (196), 9 states have internal predecessors, (196), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-28 23:33:42,194 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 585 transitions. [2023-11-28 23:33:42,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-11-28 23:33:42,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:33:42,196 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-28 23:33:42,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-28 23:33:42,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-28 23:33:42,396 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:33:42,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:33:42,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1859063562, now seen corresponding path program 2 times [2023-11-28 23:33:42,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:33:42,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330463074] [2023-11-28 23:33:42,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:33:42,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:33:42,407 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:33:42,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1337064424] [2023-11-28 23:33:42,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:33:42,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:33:42,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:33:42,409 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:33:42,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-28 23:33:42,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:33:42,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:33:42,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 23:33:42,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:33:43,283 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-28 23:33:43,283 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:33:43,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:33:43,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330463074] [2023-11-28 23:33:43,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:33:43,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337064424] [2023-11-28 23:33:43,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337064424] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:33:43,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:33:43,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-28 23:33:43,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624586723] [2023-11-28 23:33:43,485 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:33:43,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:33:43,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:33:43,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:33:43,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:33:43,486 INFO L87 Difference]: Start difference. First operand 521 states and 585 transitions. Second operand has 12 states, 11 states have (on average 17.727272727272727) internal successors, (195), 12 states have internal predecessors, (195), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-28 23:33:45,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:33:45,768 INFO L93 Difference]: Finished difference Result 647 states and 704 transitions. [2023-11-28 23:33:45,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:33:45,768 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 17.727272727272727) internal successors, (195), 12 states have internal predecessors, (195), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 282 [2023-11-28 23:33:45,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:33:45,771 INFO L225 Difference]: With dead ends: 647 [2023-11-28 23:33:45,772 INFO L226 Difference]: Without dead ends: 633 [2023-11-28 23:33:45,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:33:45,772 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 140 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:33:45,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 574 Invalid, 2362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2349 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-28 23:33:45,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2023-11-28 23:33:45,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 602. [2023-11-28 23:33:45,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 518 states have (on average 1.1525096525096525) internal successors, (597), 558 states have internal predecessors, (597), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-28 23:33:45,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 681 transitions. [2023-11-28 23:33:45,827 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 681 transitions. Word has length 282 [2023-11-28 23:33:45,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:33:45,827 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 681 transitions. [2023-11-28 23:33:45,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 17.727272727272727) internal successors, (195), 12 states have internal predecessors, (195), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-28 23:33:45,827 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 681 transitions. [2023-11-28 23:33:45,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-11-28 23:33:45,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:33:45,829 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-28 23:33:45,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-28 23:33:46,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-28 23:33:46,030 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:33:46,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:33:46,030 INFO L85 PathProgramCache]: Analyzing trace with hash -2071492467, now seen corresponding path program 1 times [2023-11-28 23:33:46,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:33:46,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493611606] [2023-11-28 23:33:46,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:33:46,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:33:46,046 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:33:46,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1296671754] [2023-11-28 23:33:46,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:33:46,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:33:46,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:33:46,047 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:33:46,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-28 23:33:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:33:46,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-28 23:33:46,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:33:47,084 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-28 23:33:47,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:33:51,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:33:51,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493611606] [2023-11-28 23:33:51,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:33:51,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296671754] [2023-11-28 23:33:51,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296671754] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:33:51,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:33:51,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-28 23:33:51,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115413651] [2023-11-28 23:33:51,891 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:33:51,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:33:51,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:33:51,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:33:51,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=167, Unknown=1, NotChecked=0, Total=240 [2023-11-28 23:33:51,893 INFO L87 Difference]: Start difference. First operand 602 states and 681 transitions. Second operand has 12 states, 11 states have (on average 18.363636363636363) internal successors, (202), 12 states have internal predecessors, (202), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-28 23:33:53,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:33:53,714 INFO L93 Difference]: Finished difference Result 633 states and 690 transitions. [2023-11-28 23:33:53,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:33:53,715 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 18.363636363636363) internal successors, (202), 12 states have internal predecessors, (202), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 289 [2023-11-28 23:33:53,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:33:53,718 INFO L225 Difference]: With dead ends: 633 [2023-11-28 23:33:53,718 INFO L226 Difference]: Without dead ends: 596 [2023-11-28 23:33:53,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=72, Invalid=167, Unknown=1, NotChecked=0, Total=240 [2023-11-28 23:33:53,719 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 123 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 2455 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:33:53,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1193 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2455 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-28 23:33:53,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2023-11-28 23:33:53,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 580. [2023-11-28 23:33:53,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 498 states have (on average 1.1465863453815262) internal successors, (571), 538 states have internal predecessors, (571), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-28 23:33:53,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 651 transitions. [2023-11-28 23:33:53,776 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 651 transitions. Word has length 289 [2023-11-28 23:33:53,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:33:53,777 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 651 transitions. [2023-11-28 23:33:53,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 18.363636363636363) internal successors, (202), 12 states have internal predecessors, (202), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-28 23:33:53,777 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 651 transitions. [2023-11-28 23:33:53,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-11-28 23:33:53,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:33:53,779 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:33:53,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-28 23:33:53,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-28 23:33:53,980 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:33:53,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:33:53,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2137350799, now seen corresponding path program 3 times [2023-11-28 23:33:53,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:33:53,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304674865] [2023-11-28 23:33:53,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:33:53,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:33:53,998 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:33:53,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404019646] [2023-11-28 23:33:53,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 23:33:53,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:33:53,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:33:53,999 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:33:54,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-28 23:33:54,087 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-28 23:33:54,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:33:54,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-28 23:33:54,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:33:55,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-28 23:33:55,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:33:55,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:33:55,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304674865] [2023-11-28 23:33:55,354 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:33:55,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404019646] [2023-11-28 23:33:55,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404019646] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:33:55,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:33:55,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-28 23:33:55,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688820814] [2023-11-28 23:33:55,354 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:33:55,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 23:33:55,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:33:55,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 23:33:55,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:33:55,356 INFO L87 Difference]: Start difference. First operand 580 states and 651 transitions. Second operand has 13 states, 12 states have (on average 19.166666666666668) internal successors, (230), 13 states have internal predecessors, (230), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-28 23:33:58,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:33:59,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:33:59,416 INFO L93 Difference]: Finished difference Result 596 states and 651 transitions. [2023-11-28 23:33:59,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 23:33:59,416 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 19.166666666666668) internal successors, (230), 13 states have internal predecessors, (230), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 332 [2023-11-28 23:33:59,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:33:59,419 INFO L225 Difference]: With dead ends: 596 [2023-11-28 23:33:59,419 INFO L226 Difference]: Without dead ends: 595 [2023-11-28 23:33:59,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-11-28 23:33:59,419 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 136 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 3028 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:33:59,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 661 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3028 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-28 23:33:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2023-11-28 23:33:59,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 580. [2023-11-28 23:33:59,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 498 states have (on average 1.144578313253012) internal successors, (570), 538 states have internal predecessors, (570), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-28 23:33:59,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 650 transitions. [2023-11-28 23:33:59,470 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 650 transitions. Word has length 332 [2023-11-28 23:33:59,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:33:59,471 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 650 transitions. [2023-11-28 23:33:59,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 19.166666666666668) internal successors, (230), 13 states have internal predecessors, (230), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-28 23:33:59,471 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 650 transitions. [2023-11-28 23:33:59,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-11-28 23:33:59,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:33:59,473 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:33:59,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-28 23:33:59,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-28 23:33:59,674 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:33:59,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:33:59,674 INFO L85 PathProgramCache]: Analyzing trace with hash 999756369, now seen corresponding path program 2 times [2023-11-28 23:33:59,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:33:59,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795716390] [2023-11-28 23:33:59,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:33:59,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:33:59,693 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:33:59,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785299171] [2023-11-28 23:33:59,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:33:59,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:33:59,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:33:59,695 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:33:59,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-28 23:33:59,799 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:33:59,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:33:59,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-28 23:33:59,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:34:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-28 23:34:00,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:34:02,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-28 23:34:02,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:34:02,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795716390] [2023-11-28 23:34:02,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:34:02,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785299171] [2023-11-28 23:34:02,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785299171] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:34:02,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:34:02,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-28 23:34:02,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066126113] [2023-11-28 23:34:02,593 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:34:02,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-28 23:34:02,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:34:02,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-28 23:34:02,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2023-11-28 23:34:02,595 INFO L87 Difference]: Start difference. First operand 580 states and 650 transitions. Second operand has 20 states, 19 states have (on average 24.157894736842106) internal successors, (459), 20 states have internal predecessors, (459), 8 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 8 states have call predecessors, (42), 8 states have call successors, (42) [2023-11-28 23:34:18,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:34:18,962 INFO L93 Difference]: Finished difference Result 785 states and 836 transitions. [2023-11-28 23:34:18,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-28 23:34:18,962 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 24.157894736842106) internal successors, (459), 20 states have internal predecessors, (459), 8 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 8 states have call predecessors, (42), 8 states have call successors, (42) Word has length 334 [2023-11-28 23:34:18,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:34:18,965 INFO L225 Difference]: With dead ends: 785 [2023-11-28 23:34:18,965 INFO L226 Difference]: Without dead ends: 778 [2023-11-28 23:34:18,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=219, Invalid=537, Unknown=0, NotChecked=0, Total=756 [2023-11-28 23:34:18,966 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 973 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 3039 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 3112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 3039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:34:18,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 1370 Invalid, 3112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 3039 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2023-11-28 23:34:18,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2023-11-28 23:34:19,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 652. [2023-11-28 23:34:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 564 states have (on average 1.1400709219858156) internal successors, (643), 604 states have internal predecessors, (643), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-28 23:34:19,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 735 transitions. [2023-11-28 23:34:19,006 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 735 transitions. Word has length 334 [2023-11-28 23:34:19,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:34:19,006 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 735 transitions. [2023-11-28 23:34:19,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 24.157894736842106) internal successors, (459), 20 states have internal predecessors, (459), 8 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 8 states have call predecessors, (42), 8 states have call successors, (42) [2023-11-28 23:34:19,006 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 735 transitions. [2023-11-28 23:34:19,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-28 23:34:19,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:34:19,008 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:34:19,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2023-11-28 23:34:19,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-28 23:34:19,208 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:34:19,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:34:19,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1506132758, now seen corresponding path program 2 times [2023-11-28 23:34:19,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:34:19,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780913207] [2023-11-28 23:34:19,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:34:19,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:34:19,222 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:34:19,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1444719092] [2023-11-28 23:34:19,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:34:19,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:34:19,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:34:19,223 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:34:19,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-28 23:34:19,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:34:19,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:34:19,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-28 23:34:19,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:34:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-28 23:34:19,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:34:20,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:34:20,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780913207] [2023-11-28 23:34:20,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:34:20,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444719092] [2023-11-28 23:34:20,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444719092] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:34:20,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:34:20,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-28 23:34:20,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891836372] [2023-11-28 23:34:20,263 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:34:20,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:34:20,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:34:20,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:34:20,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:34:20,264 INFO L87 Difference]: Start difference. First operand 652 states and 735 transitions. Second operand has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-28 23:34:20,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:34:20,991 INFO L93 Difference]: Finished difference Result 660 states and 735 transitions. [2023-11-28 23:34:20,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 23:34:20,991 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 347 [2023-11-28 23:34:20,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:34:20,994 INFO L225 Difference]: With dead ends: 660 [2023-11-28 23:34:20,994 INFO L226 Difference]: Without dead ends: 659 [2023-11-28 23:34:20,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:34:20,995 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 245 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:34:20,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 627 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1582 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 23:34:20,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2023-11-28 23:34:21,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 652. [2023-11-28 23:34:21,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 564 states have (on average 1.1382978723404256) internal successors, (642), 604 states have internal predecessors, (642), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-28 23:34:21,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 734 transitions. [2023-11-28 23:34:21,040 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 734 transitions. Word has length 347 [2023-11-28 23:34:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:34:21,041 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 734 transitions. [2023-11-28 23:34:21,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-28 23:34:21,041 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 734 transitions. [2023-11-28 23:34:21,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-28 23:34:21,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:34:21,043 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-28 23:34:21,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-28 23:34:21,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-28 23:34:21,243 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:34:21,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:34:21,244 INFO L85 PathProgramCache]: Analyzing trace with hash 534403728, now seen corresponding path program 2 times [2023-11-28 23:34:21,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:34:21,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641442402] [2023-11-28 23:34:21,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:34:21,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:34:21,257 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:34:21,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [798745468] [2023-11-28 23:34:21,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:34:21,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:34:21,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:34:21,258 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:34:21,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-28 23:34:21,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:34:21,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:34:21,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:34:21,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:34:21,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1374 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-28 23:34:21,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:34:21,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:34:21,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641442402] [2023-11-28 23:34:21,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:34:21,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798745468] [2023-11-28 23:34:21,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798745468] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:34:21,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:34:21,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-28 23:34:21,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975316447] [2023-11-28 23:34:21,706 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:34:21,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:34:21,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:34:21,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:34:21,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:34:21,708 INFO L87 Difference]: Start difference. First operand 652 states and 734 transitions. Second operand has 7 states, 6 states have (on average 41.5) internal successors, (249), 7 states have internal predecessors, (249), 5 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-28 23:34:21,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:34:21,928 INFO L93 Difference]: Finished difference Result 758 states and 821 transitions. [2023-11-28 23:34:21,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:34:21,929 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 41.5) internal successors, (249), 7 states have internal predecessors, (249), 5 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 356 [2023-11-28 23:34:21,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:34:21,932 INFO L225 Difference]: With dead ends: 758 [2023-11-28 23:34:21,932 INFO L226 Difference]: Without dead ends: 757 [2023-11-28 23:34:21,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:34:21,932 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 214 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:34:21,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 892 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:34:21,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-11-28 23:34:21,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 652. [2023-11-28 23:34:21,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 564 states have (on average 1.1365248226950355) internal successors, (641), 604 states have internal predecessors, (641), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-28 23:34:21,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 733 transitions. [2023-11-28 23:34:21,972 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 733 transitions. Word has length 356 [2023-11-28 23:34:21,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:34:21,973 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 733 transitions. [2023-11-28 23:34:21,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 41.5) internal successors, (249), 7 states have internal predecessors, (249), 5 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-28 23:34:21,973 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 733 transitions. [2023-11-28 23:34:21,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2023-11-28 23:34:21,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:34:21,975 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:34:21,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-28 23:34:22,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-28 23:34:22,175 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:34:22,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:34:22,176 INFO L85 PathProgramCache]: Analyzing trace with hash 521299621, now seen corresponding path program 1 times [2023-11-28 23:34:22,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:34:22,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111784844] [2023-11-28 23:34:22,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:34:22,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:34:22,195 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:34:22,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1263586151] [2023-11-28 23:34:22,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:34:22,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:34:22,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:34:22,196 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:34:22,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-28 23:34:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:34:22,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:34:22,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:34:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-28 23:34:22,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:34:22,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:34:22,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111784844] [2023-11-28 23:34:22,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:34:22,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263586151] [2023-11-28 23:34:22,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263586151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:34:22,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:34:22,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:34:22,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112045868] [2023-11-28 23:34:22,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:34:22,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:34:22,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:34:22,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:34:22,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:34:22,580 INFO L87 Difference]: Start difference. First operand 652 states and 733 transitions. Second operand has 7 states, 6 states have (on average 41.833333333333336) internal successors, (251), 7 states have internal predecessors, (251), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-28 23:34:23,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:34:23,649 INFO L93 Difference]: Finished difference Result 652 states and 733 transitions. [2023-11-28 23:34:23,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:34:23,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 41.833333333333336) internal successors, (251), 7 states have internal predecessors, (251), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 358 [2023-11-28 23:34:23,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:34:23,653 INFO L225 Difference]: With dead ends: 652 [2023-11-28 23:34:23,653 INFO L226 Difference]: Without dead ends: 650 [2023-11-28 23:34:23,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:34:23,654 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 270 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:34:23,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 440 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-28 23:34:23,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-11-28 23:34:23,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2023-11-28 23:34:23,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 564 states have (on average 1.1294326241134751) internal successors, (637), 602 states have internal predecessors, (637), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-28 23:34:23,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 729 transitions. [2023-11-28 23:34:23,694 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 729 transitions. Word has length 358 [2023-11-28 23:34:23,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:34:23,694 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 729 transitions. [2023-11-28 23:34:23,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 41.833333333333336) internal successors, (251), 7 states have internal predecessors, (251), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-28 23:34:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 729 transitions. [2023-11-28 23:34:23,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-11-28 23:34:23,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:34:23,696 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-28 23:34:23,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-28 23:34:23,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:34:23,897 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:34:23,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:34:23,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1826077037, now seen corresponding path program 3 times [2023-11-28 23:34:23,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:34:23,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105898155] [2023-11-28 23:34:23,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:34:23,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:34:23,910 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:34:23,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615367212] [2023-11-28 23:34:23,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 23:34:23,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:34:23,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:34:23,911 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:34:23,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-28 23:34:24,048 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-28 23:34:24,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:34:24,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-28 23:34:24,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:34:29,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 174 proven. 129 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2023-11-28 23:34:29,591 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:34:54,018 WARN L293 SmtUtils]: Spent 9.28s on a formula simplification that was a NOOP. DAG size: 24 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:35:57,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:35:57,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105898155] [2023-11-28 23:35:57,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:35:57,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615367212] [2023-11-28 23:35:57,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615367212] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:35:57,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:35:57,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-28 23:35:57,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738627236] [2023-11-28 23:35:57,984 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:35:57,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:35:57,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:35:57,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:35:57,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=395, Unknown=2, NotChecked=0, Total=506 [2023-11-28 23:35:57,986 INFO L87 Difference]: Start difference. First operand 650 states and 729 transitions. Second operand has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-28 23:36:06,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:36:08,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:36:12,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:36:16,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:36:23,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:36:27,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:36:32,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:36:34,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:36:34,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:36:34,797 INFO L93 Difference]: Finished difference Result 652 states and 731 transitions. [2023-11-28 23:36:34,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:36:34,797 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 363 [2023-11-28 23:36:34,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:36:34,800 INFO L225 Difference]: With dead ends: 652 [2023-11-28 23:36:34,800 INFO L226 Difference]: Without dead ends: 645 [2023-11-28 23:36:34,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 62.2s TimeCoverageRelationStatistics Valid=204, Invalid=664, Unknown=2, NotChecked=0, Total=870 [2023-11-28 23:36:34,801 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 575 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:36:34,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 154 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 27.7s Time] [2023-11-28 23:36:34,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2023-11-28 23:36:34,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 643. [2023-11-28 23:36:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 564 states have (on average 1.1028368794326242) internal successors, (622), 595 states have internal predecessors, (622), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-28 23:36:34,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 714 transitions. [2023-11-28 23:36:34,849 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 714 transitions. Word has length 363 [2023-11-28 23:36:34,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:36:34,849 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 714 transitions. [2023-11-28 23:36:34,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-28 23:36:34,850 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 714 transitions. [2023-11-28 23:36:34,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-11-28 23:36:34,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:36:34,851 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-28 23:36:34,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-28 23:36:35,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:36:35,052 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:36:35,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:36:35,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1781588529, now seen corresponding path program 3 times [2023-11-28 23:36:35,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:36:35,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214758122] [2023-11-28 23:36:35,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:36:35,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:36:35,065 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:36:35,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2142760552] [2023-11-28 23:36:35,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 23:36:35,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:36:35,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:35,066 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:36:35,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-28 23:36:35,122 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-28 23:36:35,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:36:35,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 23:36:35,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:36:35,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 66 proven. 128 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2023-11-28 23:36:35,706 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:36:35,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:36:35,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214758122] [2023-11-28 23:36:35,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:36:35,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142760552] [2023-11-28 23:36:35,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142760552] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:36:35,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:36:35,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-28 23:36:35,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484188378] [2023-11-28 23:36:35,901 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:36:35,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:36:35,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:36:35,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:36:35,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:36:35,902 INFO L87 Difference]: Start difference. First operand 643 states and 714 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:36:38,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:36:38,212 INFO L93 Difference]: Finished difference Result 643 states and 714 transitions. [2023-11-28 23:36:38,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:36:38,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 365 [2023-11-28 23:36:38,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:36:38,215 INFO L225 Difference]: With dead ends: 643 [2023-11-28 23:36:38,215 INFO L226 Difference]: Without dead ends: 641 [2023-11-28 23:36:38,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-11-28 23:36:38,215 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 491 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:36:38,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 395 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-28 23:36:38,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-11-28 23:36:38,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2023-11-28 23:36:38,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 564 states have (on average 1.0921985815602837) internal successors, (616), 593 states have internal predecessors, (616), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-28 23:36:38,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 708 transitions. [2023-11-28 23:36:38,265 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 708 transitions. Word has length 365 [2023-11-28 23:36:38,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:36:38,265 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 708 transitions. [2023-11-28 23:36:38,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:36:38,265 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 708 transitions. [2023-11-28 23:36:38,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-28 23:36:38,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:36:38,267 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-28 23:36:38,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2023-11-28 23:36:38,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2023-11-28 23:36:38,468 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:36:38,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:36:38,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1165281645, now seen corresponding path program 1 times [2023-11-28 23:36:38,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:36:38,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810669075] [2023-11-28 23:36:38,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:36:38,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:36:38,482 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:36:38,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1541234632] [2023-11-28 23:36:38,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:36:38,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:36:38,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:38,483 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:36:38,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-28 23:36:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:36:38,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 23:36:38,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:36:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1498 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-28 23:36:39,268 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:36:39,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1498 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-28 23:36:39,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:36:39,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810669075] [2023-11-28 23:36:39,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:36:39,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541234632] [2023-11-28 23:36:39,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541234632] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:36:39,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:36:39,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-11-28 23:36:39,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933771935] [2023-11-28 23:36:39,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:36:39,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 23:36:39,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:36:39,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 23:36:39,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=191, Unknown=0, NotChecked=0, Total=306 [2023-11-28 23:36:39,779 INFO L87 Difference]: Start difference. First operand 641 states and 708 transitions. Second operand has 18 states, 17 states have (on average 29.941176470588236) internal successors, (509), 18 states have internal predecessors, (509), 10 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) [2023-11-28 23:36:42,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:36:42,303 INFO L93 Difference]: Finished difference Result 1210 states and 1313 transitions. [2023-11-28 23:36:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-28 23:36:42,303 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 29.941176470588236) internal successors, (509), 18 states have internal predecessors, (509), 10 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) Word has length 369 [2023-11-28 23:36:42,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:36:42,307 INFO L225 Difference]: With dead ends: 1210 [2023-11-28 23:36:42,307 INFO L226 Difference]: Without dead ends: 1203 [2023-11-28 23:36:42,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 749 GetRequests, 720 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=384, Invalid=546, Unknown=0, NotChecked=0, Total=930 [2023-11-28 23:36:42,313 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 2851 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2861 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:36:42,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2861 Valid, 760 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-28 23:36:42,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2023-11-28 23:36:42,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 795. [2023-11-28 23:36:42,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 711 states have (on average 1.0745428973277074) internal successors, (764), 734 states have internal predecessors, (764), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-28 23:36:42,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 882 transitions. [2023-11-28 23:36:42,380 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 882 transitions. Word has length 369 [2023-11-28 23:36:42,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:36:42,381 INFO L495 AbstractCegarLoop]: Abstraction has 795 states and 882 transitions. [2023-11-28 23:36:42,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 29.941176470588236) internal successors, (509), 18 states have internal predecessors, (509), 10 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) [2023-11-28 23:36:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 882 transitions. [2023-11-28 23:36:42,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-11-28 23:36:42,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:36:42,383 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-28 23:36:42,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-28 23:36:42,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-28 23:36:42,583 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:36:42,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:36:42,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1763992522, now seen corresponding path program 2 times [2023-11-28 23:36:42,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:36:42,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413317346] [2023-11-28 23:36:42,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:36:42,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:36:42,596 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:36:42,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60067595] [2023-11-28 23:36:42,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:36:42,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:36:42,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:42,598 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:36:42,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-28 23:36:42,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:36:42,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:36:42,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 23:36:42,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:36:43,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1502 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-28 23:36:43,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:36:49,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:36:49,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413317346] [2023-11-28 23:36:49,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:36:49,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60067595] [2023-11-28 23:36:49,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60067595] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:36:49,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:36:49,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-28 23:36:49,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254232546] [2023-11-28 23:36:49,330 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:36:49,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-28 23:36:49,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:36:49,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-28 23:36:49,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=304, Unknown=1, NotChecked=0, Total=420 [2023-11-28 23:36:49,331 INFO L87 Difference]: Start difference. First operand 795 states and 882 transitions. Second operand has 16 states, 15 states have (on average 17.2) internal successors, (258), 16 states have internal predecessors, (258), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-28 23:36:51,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:36:51,851 INFO L93 Difference]: Finished difference Result 882 states and 961 transitions. [2023-11-28 23:36:51,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-28 23:36:51,852 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 17.2) internal successors, (258), 16 states have internal predecessors, (258), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 370 [2023-11-28 23:36:51,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:36:51,856 INFO L225 Difference]: With dead ends: 882 [2023-11-28 23:36:51,856 INFO L226 Difference]: Without dead ends: 849 [2023-11-28 23:36:51,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=125, Invalid=336, Unknown=1, NotChecked=0, Total=462 [2023-11-28 23:36:51,857 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 354 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 3713 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 3732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:36:51,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1842 Invalid, 3732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3713 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-28 23:36:51,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2023-11-28 23:36:51,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 830. [2023-11-28 23:36:51,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 744 states have (on average 1.081989247311828) internal successors, (805), 767 states have internal predecessors, (805), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-28 23:36:51,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 927 transitions. [2023-11-28 23:36:51,939 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 927 transitions. Word has length 370 [2023-11-28 23:36:51,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:36:51,940 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 927 transitions. [2023-11-28 23:36:51,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 17.2) internal successors, (258), 16 states have internal predecessors, (258), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-28 23:36:51,940 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 927 transitions. [2023-11-28 23:36:51,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-11-28 23:36:51,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:36:51,943 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:36:51,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-28 23:36:52,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:36:52,143 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr95ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:36:52,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:36:52,143 INFO L85 PathProgramCache]: Analyzing trace with hash -906014027, now seen corresponding path program 1 times [2023-11-28 23:36:52,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:36:52,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178231565] [2023-11-28 23:36:52,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:36:52,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:36:52,157 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:36:52,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024512411] [2023-11-28 23:36:52,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:36:52,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:36:52,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:52,158 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:36:52,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-28 23:36:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:36:52,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 23:36:52,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:37:02,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 122 proven. 286 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 23:37:02,125 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:37:02,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:37:02,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178231565] [2023-11-28 23:37:02,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:37:02,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024512411] [2023-11-28 23:37:02,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024512411] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:37:02,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:37:02,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-28 23:37:02,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603845066] [2023-11-28 23:37:02,913 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:37:02,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-28 23:37:02,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:37:02,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-28 23:37:02,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2023-11-28 23:37:02,914 INFO L87 Difference]: Start difference. First operand 830 states and 927 transitions. Second operand has 17 states, 16 states have (on average 16.6875) internal successors, (267), 17 states have internal predecessors, (267), 6 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2023-11-28 23:37:09,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-28 23:37:12,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-28 23:37:16,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:37:16,656 INFO L93 Difference]: Finished difference Result 830 states and 927 transitions. [2023-11-28 23:37:16,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-28 23:37:16,657 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 16.6875) internal successors, (267), 17 states have internal predecessors, (267), 6 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 376 [2023-11-28 23:37:16,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:37:16,660 INFO L225 Difference]: With dead ends: 830 [2023-11-28 23:37:16,660 INFO L226 Difference]: Without dead ends: 725 [2023-11-28 23:37:16,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2023-11-28 23:37:16,661 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 982 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 2662 mSolverCounterSat, 86 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2662 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:37:16,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 238 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2662 Invalid, 1 Unknown, 0 Unchecked, 12.9s Time] [2023-11-28 23:37:16,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2023-11-28 23:37:16,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 694. [2023-11-28 23:37:16,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 627 states have (on average 1.036682615629984) internal successors, (650), 638 states have internal predecessors, (650), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-28 23:37:16,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 758 transitions. [2023-11-28 23:37:16,751 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 758 transitions. Word has length 376 [2023-11-28 23:37:16,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:37:16,751 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 758 transitions. [2023-11-28 23:37:16,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 16.6875) internal successors, (267), 17 states have internal predecessors, (267), 6 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2023-11-28 23:37:16,752 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 758 transitions. [2023-11-28 23:37:16,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2023-11-28 23:37:16,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:37:16,754 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-28 23:37:16,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-28 23:37:16,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:37:16,955 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:37:16,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:37:16,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2052631462, now seen corresponding path program 1 times [2023-11-28 23:37:16,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:37:16,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682890537] [2023-11-28 23:37:16,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:37:16,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:37:16,975 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:37:16,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [561444618] [2023-11-28 23:37:16,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:37:16,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:37:16,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:37:16,976 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:37:16,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-28 23:37:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:37:17,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-28 23:37:17,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:37:17,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1634 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-28 23:37:17,390 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:37:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1634 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-28 23:37:17,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:37:17,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682890537] [2023-11-28 23:37:17,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:37:17,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561444618] [2023-11-28 23:37:17,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561444618] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:37:17,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:37:17,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-28 23:37:17,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000726786] [2023-11-28 23:37:17,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:37:17,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:37:17,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:37:17,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:37:17,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:37:17,940 INFO L87 Difference]: Start difference. First operand 694 states and 758 transitions. Second operand has 12 states, 11 states have (on average 48.09090909090909) internal successors, (529), 12 states have internal predecessors, (529), 10 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 10 states have call predecessors, (48), 10 states have call successors, (48) [2023-11-28 23:37:22,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:37:26,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:37:30,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:37:34,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:37:38,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:37:42,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:37:47,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:37:51,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:37:55,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:37:59,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:03,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:07,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:11,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:14,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:18,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:22,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:26,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:30,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:34,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:38,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:42,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:46,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:50,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:54,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:38:58,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:02,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:06,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:10,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:14,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:18,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:22,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:26,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:30,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:34,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:38,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:42,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:46,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:51,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:55,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:39:59,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:03,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:07,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:11,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:15,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:19,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:23,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:27,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:31,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:35,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:39,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:43,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:47,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:51,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:55,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:40:59,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:01,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:05,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:09,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:13,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:17,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:21,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:25,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:29,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:33,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:37,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:41,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:45,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:50,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:54,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:58,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:41:59,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:03,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:07,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:11,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:15,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:19,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:19,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:42:19,372 INFO L93 Difference]: Finished difference Result 1066 states and 1142 transitions. [2023-11-28 23:42:19,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:42:19,373 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 48.09090909090909) internal successors, (529), 12 states have internal predecessors, (529), 10 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 10 states have call predecessors, (48), 10 states have call successors, (48) Word has length 384 [2023-11-28 23:42:19,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:42:19,377 INFO L225 Difference]: With dead ends: 1066 [2023-11-28 23:42:19,377 INFO L226 Difference]: Without dead ends: 1065 [2023-11-28 23:42:19,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 756 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-28 23:42:19,377 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1476 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 64 mSolverCounterUnsat, 69 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 301.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 69 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 301.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:42:19,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1461 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1301 Invalid, 69 Unknown, 0 Unchecked, 301.2s Time] [2023-11-28 23:42:19,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2023-11-28 23:42:19,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 766. [2023-11-28 23:42:19,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 693 states have (on average 1.0317460317460319) internal successors, (715), 704 states have internal predecessors, (715), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-28 23:42:19,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 835 transitions. [2023-11-28 23:42:19,447 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 835 transitions. Word has length 384 [2023-11-28 23:42:19,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:42:19,447 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 835 transitions. [2023-11-28 23:42:19,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 48.09090909090909) internal successors, (529), 12 states have internal predecessors, (529), 10 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 10 states have call predecessors, (48), 10 states have call successors, (48) [2023-11-28 23:42:19,448 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 835 transitions. [2023-11-28 23:42:19,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2023-11-28 23:42:19,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:19,450 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:42:19,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-28 23:42:19,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-28 23:42:19,651 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:42:19,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:19,651 INFO L85 PathProgramCache]: Analyzing trace with hash -956724954, now seen corresponding path program 1 times [2023-11-28 23:42:19,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:42:19,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478237573] [2023-11-28 23:42:19,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:19,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:42:19,666 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:42:19,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237066769] [2023-11-28 23:42:19,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:19,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:42:19,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:42:19,667 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:42:19,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-28 23:42:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:19,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-28 23:42:19,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:20,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2090 backedges. 0 proven. 578 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-11-28 23:42:20,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:42:21,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2090 backedges. 0 proven. 578 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-11-28 23:42:21,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:21,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478237573] [2023-11-28 23:42:21,508 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:42:21,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237066769] [2023-11-28 23:42:21,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237066769] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:42:21,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:42:21,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-11-28 23:42:21,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410665183] [2023-11-28 23:42:21,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:42:21,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 23:42:21,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:21,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 23:42:21,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-28 23:42:21,511 INFO L87 Difference]: Start difference. First operand 766 states and 835 transitions. Second operand has 18 states, 17 states have (on average 36.64705882352941) internal successors, (623), 18 states have internal predecessors, (623), 10 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 10 states have call predecessors, (56), 10 states have call successors, (56) [2023-11-28 23:42:26,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:30,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:34,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:38,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:43,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:45,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:47,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:52,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:42:52,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:42:52,590 INFO L93 Difference]: Finished difference Result 968 states and 1043 transitions. [2023-11-28 23:42:52,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-28 23:42:52,590 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 36.64705882352941) internal successors, (623), 18 states have internal predecessors, (623), 10 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 10 states have call predecessors, (56), 10 states have call successors, (56) Word has length 451 [2023-11-28 23:42:52,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:42:52,593 INFO L225 Difference]: With dead ends: 968 [2023-11-28 23:42:52,593 INFO L226 Difference]: Without dead ends: 967 [2023-11-28 23:42:52,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 906 GetRequests, 884 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2023-11-28 23:42:52,594 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 852 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 51 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:42:52,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1647 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2165 Invalid, 6 Unknown, 0 Unchecked, 30.6s Time] [2023-11-28 23:42:52,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2023-11-28 23:42:52,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 805. [2023-11-28 23:42:52,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 729 states have (on average 1.0329218106995885) internal successors, (753), 740 states have internal predecessors, (753), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-28 23:42:52,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 879 transitions. [2023-11-28 23:42:52,699 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 879 transitions. Word has length 451 [2023-11-28 23:42:52,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:42:52,699 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 879 transitions. [2023-11-28 23:42:52,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 36.64705882352941) internal successors, (623), 18 states have internal predecessors, (623), 10 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 10 states have call predecessors, (56), 10 states have call successors, (56) [2023-11-28 23:42:52,700 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 879 transitions. [2023-11-28 23:42:52,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2023-11-28 23:42:52,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:52,703 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:42:52,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-28 23:42:52,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-28 23:42:52,904 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr93ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:42:52,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:52,904 INFO L85 PathProgramCache]: Analyzing trace with hash 798497706, now seen corresponding path program 1 times [2023-11-28 23:42:52,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:42:52,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459924884] [2023-11-28 23:42:52,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:52,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:42:52,926 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:42:52,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031443033] [2023-11-28 23:42:52,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:52,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:42:52,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:42:52,927 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:42:52,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-28 23:42:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:53,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-28 23:42:53,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:54,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2090 backedges. 0 proven. 578 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-11-28 23:42:54,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:42:56,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2090 backedges. 0 proven. 578 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-11-28 23:42:56,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:56,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459924884] [2023-11-28 23:42:56,987 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:42:56,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031443033] [2023-11-28 23:42:56,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031443033] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:42:56,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:42:56,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-11-28 23:42:56,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709797682] [2023-11-28 23:42:56,987 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:42:56,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-28 23:42:56,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:56,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-28 23:42:56,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=477, Unknown=0, NotChecked=0, Total=650 [2023-11-28 23:42:56,989 INFO L87 Difference]: Start difference. First operand 805 states and 879 transitions. Second operand has 26 states, 25 states have (on average 25.24) internal successors, (631), 26 states have internal predecessors, (631), 10 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 10 states have call predecessors, (56), 10 states have call successors, (56) [2023-11-28 23:43:08,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:43:15,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:43:20,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:43:24,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:43:29,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:43:33,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:43:38,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:43:38,298 INFO L93 Difference]: Finished difference Result 961 states and 1044 transitions. [2023-11-28 23:43:38,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-28 23:43:38,299 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 25.24) internal successors, (631), 26 states have internal predecessors, (631), 10 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 10 states have call predecessors, (56), 10 states have call successors, (56) Word has length 455 [2023-11-28 23:43:38,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:43:38,301 INFO L225 Difference]: With dead ends: 961 [2023-11-28 23:43:38,301 INFO L226 Difference]: Without dead ends: 865 [2023-11-28 23:43:38,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 922 GetRequests, 884 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=400, Invalid=1006, Unknown=0, NotChecked=0, Total=1406 [2023-11-28 23:43:38,301 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 947 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 3655 mSolverCounterSat, 111 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 2184 SdHoareTripleChecker+Invalid, 3771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3655 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:43:38,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 2184 Invalid, 3771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 3655 Invalid, 5 Unknown, 0 Unchecked, 37.6s Time] [2023-11-28 23:43:38,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2023-11-28 23:43:38,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 797. [2023-11-28 23:43:38,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 723 states have (on average 1.0290456431535269) internal successors, (744), 733 states have internal predecessors, (744), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-28 23:43:38,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 868 transitions. [2023-11-28 23:43:38,375 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 868 transitions. Word has length 455 [2023-11-28 23:43:38,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:43:38,375 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 868 transitions. [2023-11-28 23:43:38,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 25.24) internal successors, (631), 26 states have internal predecessors, (631), 10 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 10 states have call predecessors, (56), 10 states have call successors, (56) [2023-11-28 23:43:38,375 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 868 transitions. [2023-11-28 23:43:38,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2023-11-28 23:43:38,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:43:38,378 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2023-11-28 23:43:38,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-28 23:43:38,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:43:38,578 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:43:38,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:38,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1247576702, now seen corresponding path program 2 times [2023-11-28 23:43:38,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:38,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988047941] [2023-11-28 23:43:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:38,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:38,598 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:43:38,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779963235] [2023-11-28 23:43:38,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:43:38,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:43:38,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:43:38,599 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:43:38,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-28 23:43:38,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:43:38,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:43:38,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:43:38,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:43:38,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2635 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 2480 trivial. 0 not checked. [2023-11-28 23:43:38,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:43:38,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:38,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988047941] [2023-11-28 23:43:38,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:43:38,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779963235] [2023-11-28 23:43:38,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779963235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:38,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:38,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:43:38,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445511742] [2023-11-28 23:43:38,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:38,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:43:38,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:38,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:43:38,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:43:38,831 INFO L87 Difference]: Start difference. First operand 797 states and 868 transitions. Second operand has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-28 23:43:39,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:43:39,091 INFO L93 Difference]: Finished difference Result 797 states and 868 transitions. [2023-11-28 23:43:39,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:43:39,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 485 [2023-11-28 23:43:39,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:43:39,093 INFO L225 Difference]: With dead ends: 797 [2023-11-28 23:43:39,093 INFO L226 Difference]: Without dead ends: 796 [2023-11-28 23:43:39,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:43:39,094 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 177 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:43:39,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 112 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:43:39,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2023-11-28 23:43:39,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 796. [2023-11-28 23:43:39,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 723 states have (on average 1.0221300138312586) internal successors, (739), 732 states have internal predecessors, (739), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-28 23:43:39,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 863 transitions. [2023-11-28 23:43:39,196 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 863 transitions. Word has length 485 [2023-11-28 23:43:39,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:43:39,196 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 863 transitions. [2023-11-28 23:43:39,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-28 23:43:39,197 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 863 transitions. [2023-11-28 23:43:39,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2023-11-28 23:43:39,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:43:39,200 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:43:39,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-28 23:43:39,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-28 23:43:39,400 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:43:39,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:39,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2124262465, now seen corresponding path program 3 times [2023-11-28 23:43:39,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:39,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032806599] [2023-11-28 23:43:39,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:39,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:39,423 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:43:39,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [353101239] [2023-11-28 23:43:39,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 23:43:39,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:43:39,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:43:39,425 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:43:39,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-28 23:43:39,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-28 23:43:39,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:43:39,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 23:43:39,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:44:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2859 backedges. 477 proven. 48 refuted. 0 times theorem prover too weak. 2334 trivial. 0 not checked. [2023-11-28 23:44:55,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:45:01,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:01,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032806599] [2023-11-28 23:45:01,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:45:01,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353101239] [2023-11-28 23:45:01,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353101239] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:45:01,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:45:01,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-28 23:45:01,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903170536] [2023-11-28 23:45:01,227 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:45:01,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:45:01,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:01,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:45:01,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=158, Unknown=3, NotChecked=0, Total=210 [2023-11-28 23:45:01,228 INFO L87 Difference]: Start difference. First operand 796 states and 863 transitions. Second operand has 11 states, 10 states have (on average 15.8) internal successors, (158), 11 states have internal predecessors, (158), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-28 23:45:05,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-28 23:45:12,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-28 23:45:18,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-28 23:45:26,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-28 23:45:35,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-28 23:45:35,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:45:35,826 INFO L93 Difference]: Finished difference Result 798 states and 865 transitions. [2023-11-28 23:45:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 23:45:35,827 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 15.8) internal successors, (158), 11 states have internal predecessors, (158), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 516 [2023-11-28 23:45:35,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:45:35,828 INFO L225 Difference]: With dead ends: 798 [2023-11-28 23:45:35,828 INFO L226 Difference]: Without dead ends: 769 [2023-11-28 23:45:35,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=118, Invalid=341, Unknown=3, NotChecked=0, Total=462 [2023-11-28 23:45:35,829 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 329 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:45:35,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 95 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 630 Invalid, 1 Unknown, 0 Unchecked, 23.0s Time] [2023-11-28 23:45:35,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2023-11-28 23:45:35,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 767. [2023-11-28 23:45:35,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 698 states have (on average 1.015759312320917) internal successors, (709), 705 states have internal predecessors, (709), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-28 23:45:35,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 829 transitions. [2023-11-28 23:45:35,908 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 829 transitions. Word has length 516 [2023-11-28 23:45:35,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:45:35,909 INFO L495 AbstractCegarLoop]: Abstraction has 767 states and 829 transitions. [2023-11-28 23:45:35,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 15.8) internal successors, (158), 11 states have internal predecessors, (158), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-28 23:45:35,909 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 829 transitions. [2023-11-28 23:45:35,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2023-11-28 23:45:35,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:45:35,913 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:45:35,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-28 23:45:36,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2023-11-28 23:45:36,113 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr98ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-28 23:45:36,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:36,114 INFO L85 PathProgramCache]: Analyzing trace with hash 763139448, now seen corresponding path program 1 times [2023-11-28 23:45:36,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:36,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687704630] [2023-11-28 23:45:36,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:36,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:36,133 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:45:36,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [574968984] [2023-11-28 23:45:36,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:36,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:45:36,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:45:36,134 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:45:36,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4681239a-247b-429d-ab93-6bb77c45af4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process