./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB --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 6d5fb336862157190b75f459fa5ac35efb8ca70e207f909b082fde37cf98e7f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:33:05,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:33:05,300 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:33:05,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:33:05,307 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:33:05,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:33:05,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:33:05,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:33:05,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:33:05,349 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:33:05,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:33:05,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:33:05,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:33:05,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:33:05,350 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:33:05,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:33:05,350 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:33:05,350 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:33:05,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:33:05,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:33:05,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:33:05,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:33:05,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:33:05,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:33:05,351 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:33:05,351 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:33:05,351 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:33:05,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:33:05,351 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:33:05,351 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:33:05,352 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:33:05,352 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:33:05,352 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:33:05,352 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:33:05,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:33:05,352 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:33:05,352 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:33:05,352 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:33:05,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:33:05,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:33:05,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:33:05,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:33:05,353 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:33:05,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:33:05,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:33:05,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:33:05,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:33:05,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:33:05,353 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:33:05,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:33:05,354 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 6d5fb336862157190b75f459fa5ac35efb8ca70e207f909b082fde37cf98e7f7 [2024-11-28 03:33:05,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:33:05,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:33:05,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:33:05,705 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:33:05,705 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:33:05,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c [2024-11-28 03:33:08,824 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/data/1cdcdd98a/e20c283e64b543748ba082d09eea9c0e/FLAG6e1cb5026 [2024-11-28 03:33:09,125 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:33:09,131 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c [2024-11-28 03:33:09,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/data/1cdcdd98a/e20c283e64b543748ba082d09eea9c0e/FLAG6e1cb5026 [2024-11-28 03:33:09,414 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/data/1cdcdd98a/e20c283e64b543748ba082d09eea9c0e [2024-11-28 03:33:09,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:33:09,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:33:09,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:33:09,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:33:09,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:33:09,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0f3b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09, skipping insertion in model container [2024-11-28 03:33:09,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:33:09,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:33:09,655 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:33:09,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:33:09,687 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:33:09,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09 WrapperNode [2024-11-28 03:33:09,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:33:09,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:33:09,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:33:09,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:33:09,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,740 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2024-11-28 03:33:09,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:33:09,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:33:09,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:33:09,749 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:33:09,758 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,760 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,779 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]. [2024-11-28 03:33:09,780 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,780 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,783 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,792 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:33:09,793 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:33:09,793 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:33:09,793 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:33:09,794 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (1/1) ... [2024-11-28 03:33:09,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:33:09,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:09,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:33:09,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:33:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:33:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:33:09,869 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:33:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:33:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:33:09,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:33:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:33:09,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:33:09,934 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:33:09,936 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:33:10,260 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-28 03:33:10,260 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:33:10,272 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:33:10,273 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 03:33:10,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:10 BoogieIcfgContainer [2024-11-28 03:33:10,273 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:33:10,275 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:33:10,276 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:33:10,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:33:10,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:33:09" (1/3) ... [2024-11-28 03:33:10,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c00caa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:10, skipping insertion in model container [2024-11-28 03:33:10,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:09" (2/3) ... [2024-11-28 03:33:10,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c00caa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:10, skipping insertion in model container [2024-11-28 03:33:10,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:10" (3/3) ... [2024-11-28 03:33:10,284 INFO L128 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound10.c [2024-11-28 03:33:10,301 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:33:10,303 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard-ll_valuebound10.c that has 3 procedures, 79 locations, 1 initial locations, 2 loop locations, and 24 error locations. [2024-11-28 03:33:10,355 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:33:10,367 INFO L333 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, 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;@220f15ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:33:10,367 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-28 03:33:10,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 43 states have (on average 1.744186046511628) internal successors, (75), 66 states have internal predecessors, (75), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 03:33:10,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 03:33:10,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:10,379 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:10,379 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:10,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:10,385 INFO L85 PathProgramCache]: Analyzing trace with hash 562289298, now seen corresponding path program 1 times [2024-11-28 03:33:10,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:10,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230948101] [2024-11-28 03:33:10,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:10,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:33:10,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:10,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230948101] [2024-11-28 03:33:10,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230948101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:10,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539381405] [2024-11-28 03:33:10,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:10,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:10,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:10,538 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:10,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:33:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:10,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:33:10,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:10,628 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:33:10,628 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:33:10,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539381405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:10,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:10,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:33:10,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875535889] [2024-11-28 03:33:10,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:10,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:33:10,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:10,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:33:10,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:33:10,664 INFO L87 Difference]: Start difference. First operand has 79 states, 43 states have (on average 1.744186046511628) internal successors, (75), 66 states have internal predecessors, (75), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:33:10,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:10,698 INFO L93 Difference]: Finished difference Result 154 states and 195 transitions. [2024-11-28 03:33:10,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:33:10,701 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-28 03:33:10,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:10,713 INFO L225 Difference]: With dead ends: 154 [2024-11-28 03:33:10,713 INFO L226 Difference]: Without dead ends: 71 [2024-11-28 03:33:10,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:33:10,723 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:10,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:10,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-28 03:33:10,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-28 03:33:10,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 60 states have internal predecessors, (63), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:33:10,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2024-11-28 03:33:10,769 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 21 [2024-11-28 03:33:10,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:10,770 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2024-11-28 03:33:10,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:33:10,770 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2024-11-28 03:33:10,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 03:33:10,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:10,772 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:10,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:33:10,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:33:10,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:10,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:10,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1304517987, now seen corresponding path program 1 times [2024-11-28 03:33:10,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:10,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55853755] [2024-11-28 03:33:10,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:10,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:11,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1219742935] [2024-11-28 03:33:11,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:11,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:11,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:11,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:11,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:33:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:11,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:33:11,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:33:11,162 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:33:11,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:11,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55853755] [2024-11-28 03:33:11,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:11,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219742935] [2024-11-28 03:33:11,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219742935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:11,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:11,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:11,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938359679] [2024-11-28 03:33:11,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:11,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:11,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:11,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:11,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:11,166 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:11,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:11,292 INFO L93 Difference]: Finished difference Result 144 states and 163 transitions. [2024-11-28 03:33:11,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:11,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2024-11-28 03:33:11,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:11,294 INFO L225 Difference]: With dead ends: 144 [2024-11-28 03:33:11,294 INFO L226 Difference]: Without dead ends: 96 [2024-11-28 03:33:11,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:11,296 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 19 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:11,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 127 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:11,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-28 03:33:11,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2024-11-28 03:33:11,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 74 states have internal predecessors, (84), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:33:11,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 110 transitions. [2024-11-28 03:33:11,318 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 110 transitions. Word has length 30 [2024-11-28 03:33:11,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:11,319 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 110 transitions. [2024-11-28 03:33:11,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:33:11,319 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 110 transitions. [2024-11-28 03:33:11,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 03:33:11,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:11,322 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:33:11,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:33:11,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:11,523 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:11,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:11,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1077070625, now seen corresponding path program 1 times [2024-11-28 03:33:11,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:11,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091780534] [2024-11-28 03:33:11,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:11,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:11,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1434167105] [2024-11-28 03:33:11,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:11,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:11,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:11,587 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:11,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:33:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:11,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:33:11,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:33:11,678 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:33:11,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:11,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091780534] [2024-11-28 03:33:11,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:11,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434167105] [2024-11-28 03:33:11,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434167105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:11,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:11,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:11,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165369341] [2024-11-28 03:33:11,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:11,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:11,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:11,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:11,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:11,681 INFO L87 Difference]: Start difference. First operand 90 states and 110 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:33:11,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:11,777 INFO L93 Difference]: Finished difference Result 124 states and 153 transitions. [2024-11-28 03:33:11,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:11,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2024-11-28 03:33:11,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:11,779 INFO L225 Difference]: With dead ends: 124 [2024-11-28 03:33:11,779 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 03:33:11,779 INFO L434 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 [2024-11-28 03:33:11,780 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 39 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:11,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 105 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:11,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 03:33:11,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 106. [2024-11-28 03:33:11,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 65 states have (on average 1.6307692307692307) internal successors, (106), 88 states have internal predecessors, (106), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:33:11,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 136 transitions. [2024-11-28 03:33:11,802 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 136 transitions. Word has length 38 [2024-11-28 03:33:11,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:11,803 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 136 transitions. [2024-11-28 03:33:11,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:33:11,803 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 136 transitions. [2024-11-28 03:33:11,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 03:33:11,804 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:11,804 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:33:11,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:12,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:12,005 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:12,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:12,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1077070581, now seen corresponding path program 1 times [2024-11-28 03:33:12,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:12,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193048571] [2024-11-28 03:33:12,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:12,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:12,187 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:33:12,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:12,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193048571] [2024-11-28 03:33:12,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193048571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:12,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:12,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:12,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192303431] [2024-11-28 03:33:12,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:12,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:12,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:12,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:12,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:12,188 INFO L87 Difference]: Start difference. First operand 106 states and 136 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:33:12,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:12,276 INFO L93 Difference]: Finished difference Result 106 states and 136 transitions. [2024-11-28 03:33:12,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:12,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2024-11-28 03:33:12,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:12,277 INFO L225 Difference]: With dead ends: 106 [2024-11-28 03:33:12,278 INFO L226 Difference]: Without dead ends: 104 [2024-11-28 03:33:12,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:12,279 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 38 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:12,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 75 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:12,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-28 03:33:12,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-28 03:33:12,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 86 states have internal predecessors, (102), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:33:12,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2024-11-28 03:33:12,303 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 38 [2024-11-28 03:33:12,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:12,303 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2024-11-28 03:33:12,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:33:12,304 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2024-11-28 03:33:12,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 03:33:12,304 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:12,304 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:33:12,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:33:12,305 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:12,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:12,305 INFO L85 PathProgramCache]: Analyzing trace with hash 970550418, now seen corresponding path program 1 times [2024-11-28 03:33:12,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:12,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91709653] [2024-11-28 03:33:12,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:12,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:12,446 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:33:12,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:12,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91709653] [2024-11-28 03:33:12,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91709653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:12,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:12,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:12,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953415593] [2024-11-28 03:33:12,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:12,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:12,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:12,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:12,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:12,448 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:33:12,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:12,552 INFO L93 Difference]: Finished difference Result 111 states and 137 transitions. [2024-11-28 03:33:12,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:12,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-11-28 03:33:12,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:12,555 INFO L225 Difference]: With dead ends: 111 [2024-11-28 03:33:12,555 INFO L226 Difference]: Without dead ends: 110 [2024-11-28 03:33:12,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:12,556 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 13 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:12,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 122 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:12,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-28 03:33:12,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2024-11-28 03:33:12,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5538461538461539) internal successors, (101), 86 states have internal predecessors, (101), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:33:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2024-11-28 03:33:12,579 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 39 [2024-11-28 03:33:12,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:12,580 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2024-11-28 03:33:12,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:33:12,580 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2024-11-28 03:33:12,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 03:33:12,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:12,581 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:33:12,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:33:12,581 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:12,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:12,584 INFO L85 PathProgramCache]: Analyzing trace with hash 22250241, now seen corresponding path program 1 times [2024-11-28 03:33:12,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:12,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979577393] [2024-11-28 03:33:12,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:12,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:12,765 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:33:12,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:12,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979577393] [2024-11-28 03:33:12,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979577393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:12,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:12,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:33:12,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518995923] [2024-11-28 03:33:12,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:12,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:12,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:12,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:12,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:12,767 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:33:13,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:13,061 INFO L93 Difference]: Finished difference Result 118 states and 144 transitions. [2024-11-28 03:33:13,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:33:13,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-28 03:33:13,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:13,063 INFO L225 Difference]: With dead ends: 118 [2024-11-28 03:33:13,063 INFO L226 Difference]: Without dead ends: 117 [2024-11-28 03:33:13,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:13,065 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 82 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:13,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 103 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:33:13,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-28 03:33:13,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 107. [2024-11-28 03:33:13,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 68 states have (on average 1.5294117647058822) internal successors, (104), 89 states have internal predecessors, (104), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:33:13,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 134 transitions. [2024-11-28 03:33:13,103 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 134 transitions. Word has length 40 [2024-11-28 03:33:13,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:13,103 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 134 transitions. [2024-11-28 03:33:13,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:33:13,106 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 134 transitions. [2024-11-28 03:33:13,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 03:33:13,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:13,107 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:33:13,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:33:13,107 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:13,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:13,108 INFO L85 PathProgramCache]: Analyzing trace with hash 689757554, now seen corresponding path program 1 times [2024-11-28 03:33:13,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:13,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078152232] [2024-11-28 03:33:13,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:13,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:13,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630173314] [2024-11-28 03:33:13,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:13,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:13,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:13,149 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:13,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:33:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:13,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:33:13,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:13,301 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:33:13,302 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:33:13,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:13,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078152232] [2024-11-28 03:33:13,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:13,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630173314] [2024-11-28 03:33:13,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630173314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:13,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:13,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:13,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905206403] [2024-11-28 03:33:13,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:13,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:13,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:13,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:13,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:13,304 INFO L87 Difference]: Start difference. First operand 107 states and 134 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:33:13,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:13,394 INFO L93 Difference]: Finished difference Result 118 states and 141 transitions. [2024-11-28 03:33:13,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:13,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2024-11-28 03:33:13,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:13,395 INFO L225 Difference]: With dead ends: 118 [2024-11-28 03:33:13,396 INFO L226 Difference]: Without dead ends: 115 [2024-11-28 03:33:13,396 INFO L434 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 [2024-11-28 03:33:13,397 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:13,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 95 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:13,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-28 03:33:13,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 108. [2024-11-28 03:33:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.4927536231884058) internal successors, (103), 90 states have internal predecessors, (103), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:33:13,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 133 transitions. [2024-11-28 03:33:13,414 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 133 transitions. Word has length 41 [2024-11-28 03:33:13,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:13,415 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 133 transitions. [2024-11-28 03:33:13,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:33:13,415 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 133 transitions. [2024-11-28 03:33:13,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 03:33:13,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:13,417 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:13,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:33:13,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:13,618 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:13,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:13,619 INFO L85 PathProgramCache]: Analyzing trace with hash -778124647, now seen corresponding path program 1 times [2024-11-28 03:33:13,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:13,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459219737] [2024-11-28 03:33:13,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:13,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:13,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [924933058] [2024-11-28 03:33:13,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:13,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:13,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:13,662 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:13,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:33:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:13,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:33:13,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:13,937 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 03:33:13,937 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:14,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:14,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459219737] [2024-11-28 03:33:14,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:14,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924933058] [2024-11-28 03:33:14,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924933058] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:14,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:14,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 03:33:14,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258388380] [2024-11-28 03:33:14,174 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:14,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:33:14,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:14,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:33:14,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:33:14,176 INFO L87 Difference]: Start difference. First operand 108 states and 133 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 03:33:14,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:14,409 INFO L93 Difference]: Finished difference Result 121 states and 150 transitions. [2024-11-28 03:33:14,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:33:14,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 52 [2024-11-28 03:33:14,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:14,411 INFO L225 Difference]: With dead ends: 121 [2024-11-28 03:33:14,411 INFO L226 Difference]: Without dead ends: 113 [2024-11-28 03:33:14,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:33:14,412 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 53 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:14,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 214 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:33:14,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-28 03:33:14,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-28 03:33:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 76 states have (on average 1.381578947368421) internal successors, (105), 93 states have internal predecessors, (105), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:33:14,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 139 transitions. [2024-11-28 03:33:14,440 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 139 transitions. Word has length 52 [2024-11-28 03:33:14,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:14,441 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 139 transitions. [2024-11-28 03:33:14,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 03:33:14,442 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 139 transitions. [2024-11-28 03:33:14,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-28 03:33:14,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:14,442 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:14,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:33:14,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:14,643 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:14,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:14,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1647939770, now seen corresponding path program 1 times [2024-11-28 03:33:14,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:14,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255184081] [2024-11-28 03:33:14,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:14,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:14,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [623466256] [2024-11-28 03:33:14,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:14,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:14,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:14,668 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:14,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:33:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:14,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:33:14,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:14,962 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 03:33:14,962 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:15,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:15,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255184081] [2024-11-28 03:33:15,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:15,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623466256] [2024-11-28 03:33:15,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623466256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:15,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:15,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 03:33:15,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711150525] [2024-11-28 03:33:15,146 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:15,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:33:15,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:15,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:33:15,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:33:15,147 INFO L87 Difference]: Start difference. First operand 113 states and 139 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 03:33:15,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:15,408 INFO L93 Difference]: Finished difference Result 180 states and 233 transitions. [2024-11-28 03:33:15,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:33:15,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 53 [2024-11-28 03:33:15,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:15,411 INFO L225 Difference]: With dead ends: 180 [2024-11-28 03:33:15,411 INFO L226 Difference]: Without dead ends: 176 [2024-11-28 03:33:15,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:33:15,412 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 83 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:15,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 216 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:33:15,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-28 03:33:15,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 167. [2024-11-28 03:33:15,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 121 states have (on average 1.3884297520661157) internal successors, (168), 138 states have internal predecessors, (168), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 03:33:15,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 220 transitions. [2024-11-28 03:33:15,437 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 220 transitions. Word has length 53 [2024-11-28 03:33:15,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:15,438 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 220 transitions. [2024-11-28 03:33:15,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 03:33:15,438 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 220 transitions. [2024-11-28 03:33:15,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-28 03:33:15,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:15,439 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:15,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:15,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:15,643 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:15,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:15,644 INFO L85 PathProgramCache]: Analyzing trace with hash 351566611, now seen corresponding path program 1 times [2024-11-28 03:33:15,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:15,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681959596] [2024-11-28 03:33:15,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:15,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:15,758 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 03:33:15,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:15,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681959596] [2024-11-28 03:33:15,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681959596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:15,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:15,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:33:15,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477782801] [2024-11-28 03:33:15,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:15,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:15,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:15,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:15,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:15,764 INFO L87 Difference]: Start difference. First operand 167 states and 220 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-28 03:33:15,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:15,967 INFO L93 Difference]: Finished difference Result 176 states and 229 transitions. [2024-11-28 03:33:15,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:33:15,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 57 [2024-11-28 03:33:15,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:15,969 INFO L225 Difference]: With dead ends: 176 [2024-11-28 03:33:15,969 INFO L226 Difference]: Without dead ends: 162 [2024-11-28 03:33:15,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:15,970 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 37 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:15,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 133 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:33:15,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-28 03:33:16,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 137. [2024-11-28 03:33:16,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 97 states have (on average 1.443298969072165) internal successors, (140), 114 states have internal predecessors, (140), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:33:16,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 180 transitions. [2024-11-28 03:33:16,016 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 180 transitions. Word has length 57 [2024-11-28 03:33:16,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:16,016 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 180 transitions. [2024-11-28 03:33:16,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-28 03:33:16,018 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 180 transitions. [2024-11-28 03:33:16,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 03:33:16,019 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:16,019 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:16,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:33:16,019 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:16,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:16,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1069253660, now seen corresponding path program 1 times [2024-11-28 03:33:16,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:16,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910925627] [2024-11-28 03:33:16,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:16,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:16,116 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 03:33:16,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:16,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910925627] [2024-11-28 03:33:16,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910925627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:16,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091348005] [2024-11-28 03:33:16,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:16,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:16,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:16,119 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:16,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:33:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:16,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:33:16,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 03:33:16,217 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 03:33:16,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091348005] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:33:16,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:33:16,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-28 03:33:16,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559239496] [2024-11-28 03:33:16,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:16,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:16,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:16,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:16,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:16,313 INFO L87 Difference]: Start difference. First operand 137 states and 180 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 03:33:16,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:16,514 INFO L93 Difference]: Finished difference Result 240 states and 312 transitions. [2024-11-28 03:33:16,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:33:16,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 61 [2024-11-28 03:33:16,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:16,517 INFO L225 Difference]: With dead ends: 240 [2024-11-28 03:33:16,517 INFO L226 Difference]: Without dead ends: 238 [2024-11-28 03:33:16,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:16,521 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 145 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:16,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 182 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:33:16,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-28 03:33:16,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 190. [2024-11-28 03:33:16,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 140 states have (on average 1.4428571428571428) internal successors, (202), 157 states have internal predecessors, (202), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:33:16,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 262 transitions. [2024-11-28 03:33:16,557 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 262 transitions. Word has length 61 [2024-11-28 03:33:16,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:16,558 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 262 transitions. [2024-11-28 03:33:16,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 03:33:16,558 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 262 transitions. [2024-11-28 03:33:16,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:33:16,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:16,559 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:16,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:33:16,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:16,760 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:16,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:16,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1687245116, now seen corresponding path program 2 times [2024-11-28 03:33:16,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:16,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860956406] [2024-11-28 03:33:16,760 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:33:16,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:16,782 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:33:16,782 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:33:16,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [509690289] [2024-11-28 03:33:16,784 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:33:16,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:16,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:16,786 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:16,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:33:16,848 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:33:16,848 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:33:16,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:33:16,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:17,254 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 03:33:17,254 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:17,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:17,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860956406] [2024-11-28 03:33:17,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:17,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509690289] [2024-11-28 03:33:17,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509690289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:17,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:17,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 03:33:17,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952392159] [2024-11-28 03:33:17,500 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:17,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:33:17,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:17,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:33:17,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:33:17,501 INFO L87 Difference]: Start difference. First operand 190 states and 262 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:33:18,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:18,210 INFO L93 Difference]: Finished difference Result 255 states and 348 transitions. [2024-11-28 03:33:18,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:33:18,211 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 75 [2024-11-28 03:33:18,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:18,235 INFO L225 Difference]: With dead ends: 255 [2024-11-28 03:33:18,235 INFO L226 Difference]: Without dead ends: 251 [2024-11-28 03:33:18,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:33:18,236 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 134 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:18,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 359 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:33:18,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-28 03:33:18,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 190. [2024-11-28 03:33:18,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 140 states have (on average 1.4285714285714286) internal successors, (200), 157 states have internal predecessors, (200), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:33:18,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 260 transitions. [2024-11-28 03:33:18,263 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 260 transitions. Word has length 75 [2024-11-28 03:33:18,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:18,264 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 260 transitions. [2024-11-28 03:33:18,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:33:18,264 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 260 transitions. [2024-11-28 03:33:18,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-28 03:33:18,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:18,266 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:18,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:18,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 03:33:18,470 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:18,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:18,471 INFO L85 PathProgramCache]: Analyzing trace with hash 795892966, now seen corresponding path program 1 times [2024-11-28 03:33:18,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:18,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203600913] [2024-11-28 03:33:18,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:18,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:18,584 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-28 03:33:18,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:18,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203600913] [2024-11-28 03:33:18,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203600913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:18,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:18,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:18,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323058285] [2024-11-28 03:33:18,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:18,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:18,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:18,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:18,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:18,587 INFO L87 Difference]: Start difference. First operand 190 states and 260 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 03:33:18,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:18,693 INFO L93 Difference]: Finished difference Result 190 states and 260 transitions. [2024-11-28 03:33:18,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:18,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 82 [2024-11-28 03:33:18,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:18,698 INFO L225 Difference]: With dead ends: 190 [2024-11-28 03:33:18,698 INFO L226 Difference]: Without dead ends: 189 [2024-11-28 03:33:18,699 INFO L434 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 [2024-11-28 03:33:18,699 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 2 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:18,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 112 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:18,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-28 03:33:18,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-11-28 03:33:18,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 140 states have (on average 1.4071428571428573) internal successors, (197), 156 states have internal predecessors, (197), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:33:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 257 transitions. [2024-11-28 03:33:18,736 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 257 transitions. Word has length 82 [2024-11-28 03:33:18,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:18,736 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 257 transitions. [2024-11-28 03:33:18,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 03:33:18,737 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 257 transitions. [2024-11-28 03:33:18,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 03:33:18,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:18,738 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:18,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:33:18,738 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:18,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:18,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1097121721, now seen corresponding path program 1 times [2024-11-28 03:33:18,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:18,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096620733] [2024-11-28 03:33:18,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:18,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:18,987 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-28 03:33:18,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:18,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096620733] [2024-11-28 03:33:18,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096620733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:18,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:18,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:18,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852036595] [2024-11-28 03:33:18,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:18,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:18,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:18,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:18,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:18,990 INFO L87 Difference]: Start difference. First operand 189 states and 257 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:33:19,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:19,411 INFO L93 Difference]: Finished difference Result 344 states and 486 transitions. [2024-11-28 03:33:19,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:33:19,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2024-11-28 03:33:19,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:19,414 INFO L225 Difference]: With dead ends: 344 [2024-11-28 03:33:19,414 INFO L226 Difference]: Without dead ends: 343 [2024-11-28 03:33:19,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:33:19,415 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 97 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:19,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 202 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:33:19,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-28 03:33:19,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 285. [2024-11-28 03:33:19,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 224 states have (on average 1.4732142857142858) internal successors, (330), 240 states have internal predecessors, (330), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:33:19,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 414 transitions. [2024-11-28 03:33:19,457 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 414 transitions. Word has length 83 [2024-11-28 03:33:19,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:19,457 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 414 transitions. [2024-11-28 03:33:19,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:33:19,457 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 414 transitions. [2024-11-28 03:33:19,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 03:33:19,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:19,458 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:19,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:33:19,459 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:19,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:19,459 INFO L85 PathProgramCache]: Analyzing trace with hash 348965128, now seen corresponding path program 1 times [2024-11-28 03:33:19,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:19,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703239378] [2024-11-28 03:33:19,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:19,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:19,706 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-28 03:33:19,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:19,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703239378] [2024-11-28 03:33:19,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703239378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:19,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560270043] [2024-11-28 03:33:19,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:19,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:19,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:19,709 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:19,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:33:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:19,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:33:19,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-28 03:33:20,038 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:33:20,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560270043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:20,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:20,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-28 03:33:20,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138815326] [2024-11-28 03:33:20,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:20,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:20,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:20,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:20,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:33:20,039 INFO L87 Difference]: Start difference. First operand 285 states and 414 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-28 03:33:20,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:20,325 INFO L93 Difference]: Finished difference Result 341 states and 482 transitions. [2024-11-28 03:33:20,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:33:20,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 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 84 [2024-11-28 03:33:20,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:20,328 INFO L225 Difference]: With dead ends: 341 [2024-11-28 03:33:20,328 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 03:33:20,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:33:20,330 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 49 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:20,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 137 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:33:20,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 03:33:20,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 294. [2024-11-28 03:33:20,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 233 states have (on average 1.4549356223175967) internal successors, (339), 249 states have internal predecessors, (339), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:33:20,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 423 transitions. [2024-11-28 03:33:20,382 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 423 transitions. Word has length 84 [2024-11-28 03:33:20,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:20,382 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 423 transitions. [2024-11-28 03:33:20,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-28 03:33:20,382 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 423 transitions. [2024-11-28 03:33:20,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 03:33:20,383 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:20,383 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:20,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:20,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 03:33:20,588 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:20,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:20,589 INFO L85 PathProgramCache]: Analyzing trace with hash -2066982807, now seen corresponding path program 1 times [2024-11-28 03:33:20,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:20,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733734903] [2024-11-28 03:33:20,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:20,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:20,843 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-28 03:33:20,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:20,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733734903] [2024-11-28 03:33:20,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733734903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:20,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188298143] [2024-11-28 03:33:20,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:20,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:20,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:20,846 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:20,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:33:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:20,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:33:20,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:21,055 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-28 03:33:21,055 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:33:21,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188298143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:21,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:21,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-28 03:33:21,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249295601] [2024-11-28 03:33:21,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:21,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:21,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:21,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:21,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:33:21,057 INFO L87 Difference]: Start difference. First operand 294 states and 423 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-28 03:33:21,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:21,238 INFO L93 Difference]: Finished difference Result 301 states and 429 transitions. [2024-11-28 03:33:21,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:21,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 85 [2024-11-28 03:33:21,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:21,240 INFO L225 Difference]: With dead ends: 301 [2024-11-28 03:33:21,240 INFO L226 Difference]: Without dead ends: 299 [2024-11-28 03:33:21,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:33:21,241 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 26 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:21,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 91 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:21,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-28 03:33:21,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 297. [2024-11-28 03:33:21,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 236 states have (on average 1.4406779661016949) internal successors, (340), 252 states have internal predecessors, (340), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:33:21,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 424 transitions. [2024-11-28 03:33:21,286 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 424 transitions. Word has length 85 [2024-11-28 03:33:21,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:21,286 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 424 transitions. [2024-11-28 03:33:21,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-28 03:33:21,287 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 424 transitions. [2024-11-28 03:33:21,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 03:33:21,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:21,288 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:21,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:21,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 03:33:21,489 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:21,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:21,489 INFO L85 PathProgramCache]: Analyzing trace with hash 348042500, now seen corresponding path program 1 times [2024-11-28 03:33:21,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:21,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293551163] [2024-11-28 03:33:21,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:21,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:21,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935745313] [2024-11-28 03:33:21,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:21,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:21,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:21,527 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:21,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:33:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:21,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:33:21,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:22,332 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 03:33:22,332 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:23,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:23,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293551163] [2024-11-28 03:33:23,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:23,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935745313] [2024-11-28 03:33:23,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935745313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:23,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:23,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:33:23,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178246424] [2024-11-28 03:33:23,037 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:23,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:33:23,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:23,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:33:23,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:33:23,039 INFO L87 Difference]: Start difference. First operand 297 states and 424 transitions. Second operand has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:33:23,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:23,854 INFO L93 Difference]: Finished difference Result 370 states and 523 transitions. [2024-11-28 03:33:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:33:23,855 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 86 [2024-11-28 03:33:23,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:23,857 INFO L225 Difference]: With dead ends: 370 [2024-11-28 03:33:23,857 INFO L226 Difference]: Without dead ends: 369 [2024-11-28 03:33:23,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:33:23,858 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 121 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:23,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 247 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:33:23,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-28 03:33:23,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 343. [2024-11-28 03:33:23,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 276 states have (on average 1.4130434782608696) internal successors, (390), 292 states have internal predecessors, (390), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 03:33:23,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 486 transitions. [2024-11-28 03:33:23,910 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 486 transitions. Word has length 86 [2024-11-28 03:33:23,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:23,911 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 486 transitions. [2024-11-28 03:33:23,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:33:23,911 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 486 transitions. [2024-11-28 03:33:23,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 03:33:23,912 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:23,912 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-28 03:33:23,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 03:33:24,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 03:33:24,117 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:24,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:24,119 INFO L85 PathProgramCache]: Analyzing trace with hash -2095584309, now seen corresponding path program 1 times [2024-11-28 03:33:24,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:24,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39091555] [2024-11-28 03:33:24,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:24,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:24,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108430872] [2024-11-28 03:33:24,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:24,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:24,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:24,169 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:24,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:33:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:24,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:33:24,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:24,909 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 03:33:24,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:25,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:25,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39091555] [2024-11-28 03:33:25,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:25,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108430872] [2024-11-28 03:33:25,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108430872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:25,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:25,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:33:25,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177608697] [2024-11-28 03:33:25,348 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:25,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:33:25,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:25,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:33:25,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:33:25,350 INFO L87 Difference]: Start difference. First operand 343 states and 486 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:33:25,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:25,938 INFO L93 Difference]: Finished difference Result 403 states and 570 transitions. [2024-11-28 03:33:25,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:33:25,938 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 87 [2024-11-28 03:33:25,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:25,940 INFO L225 Difference]: With dead ends: 403 [2024-11-28 03:33:25,941 INFO L226 Difference]: Without dead ends: 402 [2024-11-28 03:33:25,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:33:25,942 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 116 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:25,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 174 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:33:25,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-28 03:33:25,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 389. [2024-11-28 03:33:25,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 316 states have (on average 1.3860759493670887) internal successors, (438), 332 states have internal predecessors, (438), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 03:33:25,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 546 transitions. [2024-11-28 03:33:25,990 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 546 transitions. Word has length 87 [2024-11-28 03:33:25,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:25,990 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 546 transitions. [2024-11-28 03:33:25,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:33:25,991 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 546 transitions. [2024-11-28 03:33:25,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 03:33:25,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:25,992 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-28 03:33:26,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:26,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 03:33:26,193 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:26,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:26,193 INFO L85 PathProgramCache]: Analyzing trace with hash -538604058, now seen corresponding path program 1 times [2024-11-28 03:33:26,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:26,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018908293] [2024-11-28 03:33:26,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:26,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:26,300 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-28 03:33:26,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:26,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018908293] [2024-11-28 03:33:26,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018908293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:26,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:26,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:26,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875878136] [2024-11-28 03:33:26,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:26,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:26,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:26,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:26,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:26,303 INFO L87 Difference]: Start difference. First operand 389 states and 546 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 03:33:26,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:26,540 INFO L93 Difference]: Finished difference Result 389 states and 546 transitions. [2024-11-28 03:33:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:33:26,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 88 [2024-11-28 03:33:26,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:26,546 INFO L225 Difference]: With dead ends: 389 [2024-11-28 03:33:26,546 INFO L226 Difference]: Without dead ends: 388 [2024-11-28 03:33:26,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:33:26,547 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 68 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:26,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 111 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:33:26,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-28 03:33:26,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 379. [2024-11-28 03:33:26,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 307 states have (on average 1.3517915309446253) internal successors, (415), 322 states have internal predecessors, (415), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 03:33:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 523 transitions. [2024-11-28 03:33:26,599 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 523 transitions. Word has length 88 [2024-11-28 03:33:26,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:26,599 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 523 transitions. [2024-11-28 03:33:26,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 03:33:26,600 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 523 transitions. [2024-11-28 03:33:26,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 03:33:26,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:26,601 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-28 03:33:26,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:33:26,602 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:26,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:26,602 INFO L85 PathProgramCache]: Analyzing trace with hash 483143469, now seen corresponding path program 1 times [2024-11-28 03:33:26,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:26,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548844943] [2024-11-28 03:33:26,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:26,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:26,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1745727946] [2024-11-28 03:33:26,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:26,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:26,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:26,634 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:26,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:33:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:26,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 03:33:26,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 03:33:27,611 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:30,780 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-28 03:33:30,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:30,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548844943] [2024-11-28 03:33:30,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:30,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745727946] [2024-11-28 03:33:30,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745727946] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:33:30,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:33:30,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2024-11-28 03:33:30,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364803763] [2024-11-28 03:33:30,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:30,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:33:30,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:30,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:33:30,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:33:30,783 INFO L87 Difference]: Start difference. First operand 379 states and 523 transitions. Second operand has 23 states, 22 states have (on average 3.409090909090909) internal successors, (75), 23 states have internal predecessors, (75), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-28 03:33:38,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:38,925 INFO L93 Difference]: Finished difference Result 531 states and 731 transitions. [2024-11-28 03:33:38,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 03:33:38,926 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.409090909090909) internal successors, (75), 23 states have internal predecessors, (75), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 89 [2024-11-28 03:33:38,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:38,929 INFO L225 Difference]: With dead ends: 531 [2024-11-28 03:33:38,929 INFO L226 Difference]: Without dead ends: 417 [2024-11-28 03:33:38,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=566, Invalid=1786, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 03:33:38,931 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 319 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:38,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 267 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 03:33:38,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-28 03:33:38,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 375. [2024-11-28 03:33:38,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 307 states have (on average 1.3485342019543973) internal successors, (414), 322 states have internal predecessors, (414), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 03:33:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 514 transitions. [2024-11-28 03:33:38,992 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 514 transitions. Word has length 89 [2024-11-28 03:33:38,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:38,992 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 514 transitions. [2024-11-28 03:33:38,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.409090909090909) internal successors, (75), 23 states have internal predecessors, (75), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-28 03:33:38,992 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 514 transitions. [2024-11-28 03:33:38,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 03:33:38,994 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:38,994 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:39,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 03:33:39,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:39,198 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:39,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:39,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2067183282, now seen corresponding path program 3 times [2024-11-28 03:33:39,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:39,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854670516] [2024-11-28 03:33:39,199 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:33:39,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:39,224 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-28 03:33:39,224 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:33:39,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1905075697] [2024-11-28 03:33:39,225 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:33:39,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:39,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:39,230 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:39,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 03:33:39,281 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 03:33:39,281 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:33:39,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 03:33:39,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:41,653 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 26 proven. 32 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-28 03:33:41,654 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:41,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:41,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854670516] [2024-11-28 03:33:41,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:41,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905075697] [2024-11-28 03:33:41,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905075697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:41,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:41,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:33:41,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100511346] [2024-11-28 03:33:41,957 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:41,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:33:41,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:41,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:33:41,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=196, Unknown=2, NotChecked=0, Total=240 [2024-11-28 03:33:41,959 INFO L87 Difference]: Start difference. First operand 375 states and 514 transitions. Second operand has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 03:33:44,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:33:50,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:33:51,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:51,610 INFO L93 Difference]: Finished difference Result 404 states and 549 transitions. [2024-11-28 03:33:51,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:33:51,611 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 97 [2024-11-28 03:33:51,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:51,614 INFO L225 Difference]: With dead ends: 404 [2024-11-28 03:33:51,614 INFO L226 Difference]: Without dead ends: 400 [2024-11-28 03:33:51,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=130, Invalid=414, Unknown=8, NotChecked=0, Total=552 [2024-11-28 03:33:51,616 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 216 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 56 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:51,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 207 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2024-11-28 03:33:51,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-28 03:33:51,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 370. [2024-11-28 03:33:51,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 305 states have (on average 1.3114754098360655) internal successors, (400), 317 states have internal predecessors, (400), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 03:33:51,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 500 transitions. [2024-11-28 03:33:51,688 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 500 transitions. Word has length 97 [2024-11-28 03:33:51,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:51,688 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 500 transitions. [2024-11-28 03:33:51,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 03:33:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 500 transitions. [2024-11-28 03:33:51,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 03:33:51,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:51,689 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:51,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 03:33:51,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 03:33:51,890 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:51,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:51,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1222520212, now seen corresponding path program 1 times [2024-11-28 03:33:51,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:51,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355814053] [2024-11-28 03:33:51,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:51,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:51,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698772962] [2024-11-28 03:33:51,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:51,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:51,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:51,930 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:51,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 03:33:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:51,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:33:51,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:52,524 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 03:33:52,524 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:53,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:53,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355814053] [2024-11-28 03:33:53,058 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:53,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698772962] [2024-11-28 03:33:53,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698772962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:53,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:53,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 03:33:53,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555935052] [2024-11-28 03:33:53,058 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:53,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:33:53,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:53,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:33:53,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:33:53,060 INFO L87 Difference]: Start difference. First operand 370 states and 500 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 03:33:53,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:53,512 INFO L93 Difference]: Finished difference Result 375 states and 507 transitions. [2024-11-28 03:33:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:33:53,513 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 103 [2024-11-28 03:33:53,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:53,515 INFO L225 Difference]: With dead ends: 375 [2024-11-28 03:33:53,515 INFO L226 Difference]: Without dead ends: 374 [2024-11-28 03:33:53,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:33:53,518 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 29 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:53,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 193 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:33:53,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-28 03:33:53,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 371. [2024-11-28 03:33:53,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 306 states have (on average 1.3104575163398693) internal successors, (401), 318 states have internal predecessors, (401), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 03:33:53,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 501 transitions. [2024-11-28 03:33:53,591 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 501 transitions. Word has length 103 [2024-11-28 03:33:53,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:53,591 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 501 transitions. [2024-11-28 03:33:53,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 03:33:53,591 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 501 transitions. [2024-11-28 03:33:53,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 03:33:53,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:53,598 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:53,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:53,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 03:33:53,802 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:53,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:53,803 INFO L85 PathProgramCache]: Analyzing trace with hash 756579215, now seen corresponding path program 1 times [2024-11-28 03:33:53,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:53,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811267607] [2024-11-28 03:33:53,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:53,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:53,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370773470] [2024-11-28 03:33:53,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:53,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:53,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:53,833 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:53,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 03:33:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:53,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 03:33:53,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:54,490 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-28 03:33:54,490 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:55,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:55,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811267607] [2024-11-28 03:33:55,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:55,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370773470] [2024-11-28 03:33:55,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370773470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:55,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:55,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:33:55,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509281382] [2024-11-28 03:33:55,198 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:55,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:33:55,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:55,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:33:55,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:33:55,201 INFO L87 Difference]: Start difference. First operand 371 states and 501 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 03:33:55,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:55,960 INFO L93 Difference]: Finished difference Result 626 states and 863 transitions. [2024-11-28 03:33:55,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:33:55,961 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 104 [2024-11-28 03:33:55,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:55,964 INFO L225 Difference]: With dead ends: 626 [2024-11-28 03:33:55,964 INFO L226 Difference]: Without dead ends: 390 [2024-11-28 03:33:55,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:33:55,967 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 95 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:55,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 337 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:33:55,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-28 03:33:56,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 384. [2024-11-28 03:33:56,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 315 states have (on average 1.326984126984127) internal successors, (418), 327 states have internal predecessors, (418), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 03:33:56,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 526 transitions. [2024-11-28 03:33:56,049 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 526 transitions. Word has length 104 [2024-11-28 03:33:56,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:56,050 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 526 transitions. [2024-11-28 03:33:56,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 03:33:56,050 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 526 transitions. [2024-11-28 03:33:56,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 03:33:56,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:56,051 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:56,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:56,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 03:33:56,256 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:56,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:56,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1979119310, now seen corresponding path program 1 times [2024-11-28 03:33:56,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:56,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258511606] [2024-11-28 03:33:56,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:56,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:56,366 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-28 03:33:56,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:56,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258511606] [2024-11-28 03:33:56,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258511606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:56,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:56,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:56,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21977167] [2024-11-28 03:33:56,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:56,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:56,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:56,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:56,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:56,370 INFO L87 Difference]: Start difference. First operand 384 states and 526 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-11-28 03:33:56,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:56,588 INFO L93 Difference]: Finished difference Result 384 states and 526 transitions. [2024-11-28 03:33:56,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:33:56,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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 105 [2024-11-28 03:33:56,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:56,591 INFO L225 Difference]: With dead ends: 384 [2024-11-28 03:33:56,591 INFO L226 Difference]: Without dead ends: 383 [2024-11-28 03:33:56,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:33:56,592 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 40 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:56,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 140 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:33:56,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-28 03:33:56,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2024-11-28 03:33:56,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 315 states have (on average 1.3238095238095238) internal successors, (417), 326 states have internal predecessors, (417), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 03:33:56,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 525 transitions. [2024-11-28 03:33:56,656 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 525 transitions. Word has length 105 [2024-11-28 03:33:56,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:56,657 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 525 transitions. [2024-11-28 03:33:56,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-11-28 03:33:56,657 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 525 transitions. [2024-11-28 03:33:56,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:33:56,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:56,659 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:56,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:33:56,659 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:56,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:56,659 INFO L85 PathProgramCache]: Analyzing trace with hash 795608210, now seen corresponding path program 1 times [2024-11-28 03:33:56,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:56,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538452604] [2024-11-28 03:33:56,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:56,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:56,789 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-28 03:33:56,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:56,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538452604] [2024-11-28 03:33:56,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538452604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:56,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79796665] [2024-11-28 03:33:56,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:56,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:56,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:56,793 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:56,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 03:33:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:56,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:33:56,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-28 03:33:56,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:57,118 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-28 03:33:57,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79796665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:33:57,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:33:57,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 03:33:57,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915228580] [2024-11-28 03:33:57,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:57,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:33:57,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:57,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:33:57,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:33:57,120 INFO L87 Difference]: Start difference. First operand 383 states and 525 transitions. Second operand has 11 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-28 03:33:57,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:57,561 INFO L93 Difference]: Finished difference Result 681 states and 916 transitions. [2024-11-28 03:33:57,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:33:57,562 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 107 [2024-11-28 03:33:57,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:57,565 INFO L225 Difference]: With dead ends: 681 [2024-11-28 03:33:57,566 INFO L226 Difference]: Without dead ends: 679 [2024-11-28 03:33:57,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:33:57,567 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 341 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:57,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 249 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:33:57,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-28 03:33:57,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 451. [2024-11-28 03:33:57,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 369 states have (on average 1.2953929539295392) internal successors, (478), 380 states have internal predecessors, (478), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 03:33:57,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 614 transitions. [2024-11-28 03:33:57,676 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 614 transitions. Word has length 107 [2024-11-28 03:33:57,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:57,678 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 614 transitions. [2024-11-28 03:33:57,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-28 03:33:57,678 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 614 transitions. [2024-11-28 03:33:57,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 03:33:57,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:57,680 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:57,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:57,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 03:33:57,882 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:33:57,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:57,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1223156593, now seen corresponding path program 1 times [2024-11-28 03:33:57,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:57,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306196450] [2024-11-28 03:33:57,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:57,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:57,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [63449622] [2024-11-28 03:33:57,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:57,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:57,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:57,922 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:57,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 03:33:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:57,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 03:33:57,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-28 03:33:58,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:59,853 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 03:33:59,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:59,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306196450] [2024-11-28 03:33:59,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:59,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63449622] [2024-11-28 03:33:59,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63449622] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:33:59,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:33:59,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2024-11-28 03:33:59,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345692653] [2024-11-28 03:33:59,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:59,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 03:33:59,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:59,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 03:33:59,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:33:59,856 INFO L87 Difference]: Start difference. First operand 451 states and 614 transitions. Second operand has 20 states, 19 states have (on average 4.684210526315789) internal successors, (89), 20 states have internal predecessors, (89), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-28 03:34:01,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:01,616 INFO L93 Difference]: Finished difference Result 495 states and 669 transitions. [2024-11-28 03:34:01,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:34:01,617 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.684210526315789) internal successors, (89), 20 states have internal predecessors, (89), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 106 [2024-11-28 03:34:01,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:01,620 INFO L225 Difference]: With dead ends: 495 [2024-11-28 03:34:01,620 INFO L226 Difference]: Without dead ends: 488 [2024-11-28 03:34:01,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:34:01,621 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 106 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:01,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 311 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:34:01,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-28 03:34:01,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 448. [2024-11-28 03:34:01,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 366 states have (on average 1.284153005464481) internal successors, (470), 377 states have internal predecessors, (470), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 03:34:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 606 transitions. [2024-11-28 03:34:01,707 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 606 transitions. Word has length 106 [2024-11-28 03:34:01,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:01,708 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 606 transitions. [2024-11-28 03:34:01,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.684210526315789) internal successors, (89), 20 states have internal predecessors, (89), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-28 03:34:01,708 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 606 transitions. [2024-11-28 03:34:01,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 03:34:01,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:01,711 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:01,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:01,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 03:34:01,916 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:34:01,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:01,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1302134726, now seen corresponding path program 2 times [2024-11-28 03:34:01,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:01,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354869603] [2024-11-28 03:34:01,917 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:34:01,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:01,952 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:34:01,952 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:34:01,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1596079678] [2024-11-28 03:34:01,955 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:34:01,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:01,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:01,957 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:01,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 03:34:02,024 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:34:02,025 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:34:02,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:34:02,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:02,213 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-28 03:34:02,213 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:03,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:03,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354869603] [2024-11-28 03:34:03,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:34:03,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596079678] [2024-11-28 03:34:03,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596079678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:03,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:34:03,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 03:34:03,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123037620] [2024-11-28 03:34:03,090 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:03,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:34:03,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:03,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:34:03,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:34:03,092 INFO L87 Difference]: Start difference. First operand 448 states and 606 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 03:34:03,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:03,446 INFO L93 Difference]: Finished difference Result 507 states and 693 transitions. [2024-11-28 03:34:03,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:34:03,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 108 [2024-11-28 03:34:03,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:03,449 INFO L225 Difference]: With dead ends: 507 [2024-11-28 03:34:03,449 INFO L226 Difference]: Without dead ends: 505 [2024-11-28 03:34:03,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:34:03,450 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 71 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:03,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 231 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:34:03,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-28 03:34:03,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 446. [2024-11-28 03:34:03,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 366 states have (on average 1.215846994535519) internal successors, (445), 375 states have internal predecessors, (445), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 03:34:03,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 581 transitions. [2024-11-28 03:34:03,540 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 581 transitions. Word has length 108 [2024-11-28 03:34:03,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:03,541 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 581 transitions. [2024-11-28 03:34:03,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 03:34:03,541 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 581 transitions. [2024-11-28 03:34:03,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 03:34:03,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:03,542 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:03,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:03,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 03:34:03,744 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:34:03,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:03,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1711470763, now seen corresponding path program 2 times [2024-11-28 03:34:03,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:03,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199016268] [2024-11-28 03:34:03,745 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:34:03,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:03,768 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:34:03,769 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:34:03,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [965708805] [2024-11-28 03:34:03,770 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:34:03,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:03,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:03,772 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:03,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 03:34:03,841 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:34:03,841 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:34:03,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 03:34:03,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:04,693 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-28 03:34:04,694 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:05,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:05,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199016268] [2024-11-28 03:34:05,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:34:05,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965708805] [2024-11-28 03:34:05,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965708805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:05,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:34:05,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 03:34:05,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876910668] [2024-11-28 03:34:05,051 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:05,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:34:05,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:05,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:34:05,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:34:05,052 INFO L87 Difference]: Start difference. First operand 446 states and 581 transitions. Second operand has 16 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-28 03:34:05,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:05,842 INFO L93 Difference]: Finished difference Result 486 states and 632 transitions. [2024-11-28 03:34:05,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:34:05,842 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 109 [2024-11-28 03:34:05,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:05,845 INFO L225 Difference]: With dead ends: 486 [2024-11-28 03:34:05,845 INFO L226 Difference]: Without dead ends: 485 [2024-11-28 03:34:05,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:34:05,846 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 114 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:05,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 258 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:34:05,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-28 03:34:05,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 470. [2024-11-28 03:34:05,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 386 states have (on average 1.2098445595854923) internal successors, (467), 395 states have internal predecessors, (467), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:34:05,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 611 transitions. [2024-11-28 03:34:05,953 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 611 transitions. Word has length 109 [2024-11-28 03:34:05,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:05,953 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 611 transitions. [2024-11-28 03:34:05,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-28 03:34:05,953 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 611 transitions. [2024-11-28 03:34:05,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 03:34:05,954 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:05,955 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:05,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:06,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 03:34:06,160 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:34:06,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:06,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1706036616, now seen corresponding path program 1 times [2024-11-28 03:34:06,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:06,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031738418] [2024-11-28 03:34:06,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:06,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:06,461 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-28 03:34:06,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:06,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031738418] [2024-11-28 03:34:06,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031738418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:06,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642849798] [2024-11-28 03:34:06,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:06,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:06,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:06,464 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:06,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 03:34:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:06,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:34:06,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:06,634 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 03:34:06,634 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:06,774 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 03:34:06,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642849798] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:34:06,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:34:06,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2024-11-28 03:34:06,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597907189] [2024-11-28 03:34:06,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:06,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:34:06,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:06,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:34:06,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:34:06,775 INFO L87 Difference]: Start difference. First operand 470 states and 611 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-28 03:34:07,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:07,740 INFO L93 Difference]: Finished difference Result 826 states and 1096 transitions. [2024-11-28 03:34:07,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:34:07,740 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 109 [2024-11-28 03:34:07,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:07,743 INFO L225 Difference]: With dead ends: 826 [2024-11-28 03:34:07,743 INFO L226 Difference]: Without dead ends: 699 [2024-11-28 03:34:07,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:34:07,744 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 162 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:07,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 468 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:34:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-28 03:34:07,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 466. [2024-11-28 03:34:07,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 382 states have (on average 1.2382198952879582) internal successors, (473), 391 states have internal predecessors, (473), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:34:07,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 617 transitions. [2024-11-28 03:34:07,847 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 617 transitions. Word has length 109 [2024-11-28 03:34:07,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:07,848 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 617 transitions. [2024-11-28 03:34:07,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-28 03:34:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 617 transitions. [2024-11-28 03:34:07,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 03:34:07,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:07,849 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:07,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:08,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 03:34:08,050 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:34:08,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:08,051 INFO L85 PathProgramCache]: Analyzing trace with hash -2130149537, now seen corresponding path program 3 times [2024-11-28 03:34:08,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:08,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578748990] [2024-11-28 03:34:08,051 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:34:08,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:08,117 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-28 03:34:08,118 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:34:08,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1910636623] [2024-11-28 03:34:08,123 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:34:08,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:08,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:08,128 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:08,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 03:34:08,188 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 03:34:08,188 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:34:08,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:34:08,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-11-28 03:34:40,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:42,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:42,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578748990] [2024-11-28 03:34:42,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:34:42,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910636623] [2024-11-28 03:34:42,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910636623] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:42,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:34:42,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:34:42,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488223371] [2024-11-28 03:34:42,528 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:42,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:34:42,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:42,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:34:42,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:34:42,529 INFO L87 Difference]: Start difference. First operand 466 states and 617 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 03:34:46,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:34:50,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:34:54,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:34:58,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:35:02,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:35:14,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:35:16,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:16,010 INFO L93 Difference]: Finished difference Result 552 states and 730 transitions. [2024-11-28 03:35:16,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:35:16,010 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 131 [2024-11-28 03:35:16,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:16,013 INFO L225 Difference]: With dead ends: 552 [2024-11-28 03:35:16,013 INFO L226 Difference]: Without dead ends: 551 [2024-11-28 03:35:16,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=137, Invalid=368, Unknown=1, NotChecked=0, Total=506 [2024-11-28 03:35:16,015 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 49 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 15 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:16,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 155 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 348 Invalid, 6 Unknown, 0 Unchecked, 25.2s Time] [2024-11-28 03:35:16,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-28 03:35:16,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 495. [2024-11-28 03:35:16,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 409 states have (on average 1.2396088019559903) internal successors, (507), 418 states have internal predecessors, (507), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 03:35:16,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 655 transitions. [2024-11-28 03:35:16,119 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 655 transitions. Word has length 131 [2024-11-28 03:35:16,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:16,119 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 655 transitions. [2024-11-28 03:35:16,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 03:35:16,119 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 655 transitions. [2024-11-28 03:35:16,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:35:16,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:16,121 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:16,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 03:35:16,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:16,325 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:35:16,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:16,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1625697729, now seen corresponding path program 2 times [2024-11-28 03:35:16,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:16,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137734009] [2024-11-28 03:35:16,326 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:35:16,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:16,351 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:35:16,351 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:35:16,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255209280] [2024-11-28 03:35:16,352 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:35:16,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:16,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:16,356 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:35:16,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 03:35:16,430 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:35:16,431 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:35:16,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 03:35:16,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:17,514 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-28 03:35:17,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-28 03:35:19,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:19,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137734009] [2024-11-28 03:35:19,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:35:19,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255209280] [2024-11-28 03:35:19,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255209280] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:35:19,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:35:19,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24 [2024-11-28 03:35:19,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073636315] [2024-11-28 03:35:19,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:35:19,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 03:35:19,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:19,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 03:35:19,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:35:19,267 INFO L87 Difference]: Start difference. First operand 495 states and 655 transitions. Second operand has 25 states, 24 states have (on average 4.291666666666667) internal successors, (103), 25 states have internal predecessors, (103), 10 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) [2024-11-28 03:35:25,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:25,248 INFO L93 Difference]: Finished difference Result 584 states and 765 transitions. [2024-11-28 03:35:25,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 03:35:25,249 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.291666666666667) internal successors, (103), 25 states have internal predecessors, (103), 10 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) Word has length 133 [2024-11-28 03:35:25,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:25,251 INFO L225 Difference]: With dead ends: 584 [2024-11-28 03:35:25,252 INFO L226 Difference]: Without dead ends: 583 [2024-11-28 03:35:25,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=569, Invalid=1981, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 03:35:25,253 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 411 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:25,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 539 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 03:35:25,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-28 03:35:25,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 557. [2024-11-28 03:35:25,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 465 states have (on average 1.2236559139784946) internal successors, (569), 474 states have internal predecessors, (569), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-28 03:35:25,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 729 transitions. [2024-11-28 03:35:25,385 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 729 transitions. Word has length 133 [2024-11-28 03:35:25,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:25,385 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 729 transitions. [2024-11-28 03:35:25,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.291666666666667) internal successors, (103), 25 states have internal predecessors, (103), 10 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) [2024-11-28 03:35:25,385 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 729 transitions. [2024-11-28 03:35:25,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:35:25,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:25,386 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:25,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 03:35:25,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-28 03:35:25,591 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:35:25,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:25,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1742020636, now seen corresponding path program 1 times [2024-11-28 03:35:25,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:25,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112690769] [2024-11-28 03:35:25,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:25,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:25,961 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 03:35:25,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:25,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112690769] [2024-11-28 03:35:25,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112690769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:25,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969935446] [2024-11-28 03:35:25,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:25,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:25,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:25,964 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:35:25,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 03:35:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:26,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:35:26,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:26,429 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 03:35:26,430 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:28,560 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 03:35:28,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969935446] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:35:28,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:35:28,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-28 03:35:28,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185792271] [2024-11-28 03:35:28,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:35:28,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 03:35:28,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:28,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 03:35:28,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:35:28,563 INFO L87 Difference]: Start difference. First operand 557 states and 729 transitions. Second operand has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-11-28 03:35:30,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:30,114 INFO L93 Difference]: Finished difference Result 792 states and 1031 transitions. [2024-11-28 03:35:30,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:35:30,115 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) Word has length 133 [2024-11-28 03:35:30,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:30,118 INFO L225 Difference]: With dead ends: 792 [2024-11-28 03:35:30,119 INFO L226 Difference]: Without dead ends: 791 [2024-11-28 03:35:30,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:35:30,120 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 248 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:30,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 658 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:35:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2024-11-28 03:35:30,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 705. [2024-11-28 03:35:30,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 597 states have (on average 1.2177554438860971) internal successors, (727), 606 states have internal predecessors, (727), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-28 03:35:30,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 919 transitions. [2024-11-28 03:35:30,291 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 919 transitions. Word has length 133 [2024-11-28 03:35:30,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:30,292 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 919 transitions. [2024-11-28 03:35:30,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-11-28 03:35:30,292 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 919 transitions. [2024-11-28 03:35:30,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:35:30,295 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:30,295 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:30,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 03:35:30,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-28 03:35:30,497 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:35:30,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:30,497 INFO L85 PathProgramCache]: Analyzing trace with hash 955416710, now seen corresponding path program 4 times [2024-11-28 03:35:30,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:30,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046079980] [2024-11-28 03:35:30,498 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:35:30,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:30,541 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:35:30,541 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:35:30,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1638974493] [2024-11-28 03:35:30,543 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:35:30,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:30,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:30,546 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:35:30,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 03:35:30,628 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:35:30,628 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:35:30,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 03:35:30,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 3 proven. 47 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-28 03:35:31,713 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:32,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:32,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046079980] [2024-11-28 03:35:32,075 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:35:32,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638974493] [2024-11-28 03:35:32,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638974493] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:32,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:35:32,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 03:35:32,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721242231] [2024-11-28 03:35:32,075 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:35:32,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:35:32,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:32,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:35:32,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:35:32,077 INFO L87 Difference]: Start difference. First operand 705 states and 919 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-28 03:35:32,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:32,875 INFO L93 Difference]: Finished difference Result 729 states and 949 transitions. [2024-11-28 03:35:32,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:35:32,875 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 135 [2024-11-28 03:35:32,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:32,878 INFO L225 Difference]: With dead ends: 729 [2024-11-28 03:35:32,879 INFO L226 Difference]: Without dead ends: 728 [2024-11-28 03:35:32,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:35:32,880 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 93 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:32,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 257 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:35:32,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-28 03:35:33,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 719. [2024-11-28 03:35:33,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 609 states have (on average 1.2118226600985222) internal successors, (738), 618 states have internal predecessors, (738), 98 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-28 03:35:33,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 934 transitions. [2024-11-28 03:35:33,071 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 934 transitions. Word has length 135 [2024-11-28 03:35:33,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:33,071 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 934 transitions. [2024-11-28 03:35:33,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-28 03:35:33,072 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 934 transitions. [2024-11-28 03:35:33,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 03:35:33,074 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:33,074 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:33,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 03:35:33,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:33,275 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:35:33,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:33,275 INFO L85 PathProgramCache]: Analyzing trace with hash -967540440, now seen corresponding path program 3 times [2024-11-28 03:35:33,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:33,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614682669] [2024-11-28 03:35:33,276 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:35:33,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:33,336 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 03:35:33,336 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:35:33,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1310412060] [2024-11-28 03:35:33,337 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:35:33,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:33,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:33,340 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:35:33,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 03:35:33,439 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 03:35:33,439 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:35:33,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-28 03:35:33,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:48,755 WARN L286 SmtUtils]: Spent 7.16s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:36:11,301 WARN L286 SmtUtils]: Spent 9.66s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:36:41,893 WARN L286 SmtUtils]: Spent 11.01s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:37:20,947 WARN L286 SmtUtils]: Spent 13.23s on a formula simplification that was a NOOP. DAG size: 228 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:38:01,774 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 92 proven. 47 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-11-28 03:38:01,774 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:22,593 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-11-28 03:38:22,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:22,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614682669] [2024-11-28 03:38:22,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:38:22,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310412060] [2024-11-28 03:38:22,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310412060] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:22,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:38:22,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [20] total 29 [2024-11-28 03:38:22,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350228405] [2024-11-28 03:38:22,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:38:22,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:38:22,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:22,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:38:22,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=720, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:38:22,595 INFO L87 Difference]: Start difference. First operand 719 states and 934 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 03:38:29,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:29,678 INFO L93 Difference]: Finished difference Result 731 states and 952 transitions. [2024-11-28 03:38:29,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:38:29,679 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 137 [2024-11-28 03:38:29,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:29,684 INFO L225 Difference]: With dead ends: 731 [2024-11-28 03:38:29,684 INFO L226 Difference]: Without dead ends: 730 [2024-11-28 03:38:29,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 65.7s TimeCoverageRelationStatistics Valid=249, Invalid=1083, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:38:29,685 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 104 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:29,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 137 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:38:29,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-11-28 03:38:29,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 654. [2024-11-28 03:38:29,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 549 states have (on average 1.1912568306010929) internal successors, (654), 557 states have internal predecessors, (654), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-28 03:38:29,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 842 transitions. [2024-11-28 03:38:29,879 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 842 transitions. Word has length 137 [2024-11-28 03:38:29,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:29,880 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 842 transitions. [2024-11-28 03:38:29,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 03:38:29,880 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 842 transitions. [2024-11-28 03:38:29,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 03:38:29,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:29,881 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:38:29,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:30,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:30,082 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:38:30,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:30,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1614917395, now seen corresponding path program 1 times [2024-11-28 03:38:30,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:30,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513009168] [2024-11-28 03:38:30,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:30,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:38:30,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556612192] [2024-11-28 03:38:30,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:30,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:30,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:30,119 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:30,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 03:38:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:30,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 03:38:30,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:31,090 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 42 proven. 54 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-28 03:38:31,090 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:31,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:31,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513009168] [2024-11-28 03:38:31,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:38:31,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556612192] [2024-11-28 03:38:31,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556612192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:31,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:38:31,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 03:38:31,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251396505] [2024-11-28 03:38:31,416 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:31,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:38:31,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:31,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:38:31,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:38:31,417 INFO L87 Difference]: Start difference. First operand 654 states and 842 transitions. Second operand has 17 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:38:32,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:32,568 INFO L93 Difference]: Finished difference Result 767 states and 983 transitions. [2024-11-28 03:38:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:38:32,569 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) Word has length 147 [2024-11-28 03:38:32,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:32,571 INFO L225 Difference]: With dead ends: 767 [2024-11-28 03:38:32,571 INFO L226 Difference]: Without dead ends: 558 [2024-11-28 03:38:32,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=164, Invalid=648, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:38:32,572 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 46 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:32,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 382 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:38:32,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-28 03:38:32,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 555. [2024-11-28 03:38:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 460 states have (on average 1.184782608695652) internal successors, (545), 468 states have internal predecessors, (545), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-28 03:38:32,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 713 transitions. [2024-11-28 03:38:32,703 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 713 transitions. Word has length 147 [2024-11-28 03:38:32,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:32,703 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 713 transitions. [2024-11-28 03:38:32,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:38:32,703 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 713 transitions. [2024-11-28 03:38:32,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 03:38:32,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:32,705 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:38:32,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:32,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 03:38:32,906 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:38:32,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:32,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1477168430, now seen corresponding path program 1 times [2024-11-28 03:38:32,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:32,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630535780] [2024-11-28 03:38:32,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:32,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:38:32,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630067280] [2024-11-28 03:38:32,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:32,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:32,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:32,956 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:32,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 03:38:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:33,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 03:38:33,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:34,855 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 42 proven. 60 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-11-28 03:38:34,855 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:37,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:37,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630535780] [2024-11-28 03:38:37,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:38:37,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630067280] [2024-11-28 03:38:37,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630067280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:37,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:38:37,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2024-11-28 03:38:37,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463028017] [2024-11-28 03:38:37,589 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:37,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 03:38:37,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:37,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 03:38:37,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:38:37,590 INFO L87 Difference]: Start difference. First operand 555 states and 713 transitions. Second operand has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 8 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-28 03:38:39,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:39,959 INFO L93 Difference]: Finished difference Result 561 states and 719 transitions. [2024-11-28 03:38:39,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:38:39,959 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 8 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 148 [2024-11-28 03:38:39,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:39,963 INFO L225 Difference]: With dead ends: 561 [2024-11-28 03:38:39,963 INFO L226 Difference]: Without dead ends: 560 [2024-11-28 03:38:39,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=445, Invalid=1811, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 03:38:39,964 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 124 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:39,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 432 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:38:39,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-28 03:38:40,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 556. [2024-11-28 03:38:40,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 461 states have (on average 1.1843817787418656) internal successors, (546), 469 states have internal predecessors, (546), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-28 03:38:40,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 714 transitions. [2024-11-28 03:38:40,138 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 714 transitions. Word has length 148 [2024-11-28 03:38:40,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:40,138 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 714 transitions. [2024-11-28 03:38:40,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 8 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-28 03:38:40,138 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 714 transitions. [2024-11-28 03:38:40,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 03:38:40,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:40,140 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:38:40,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-28 03:38:40,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:40,344 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:38:40,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:40,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2075309744, now seen corresponding path program 1 times [2024-11-28 03:38:40,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:40,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671063732] [2024-11-28 03:38:40,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:40,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:38:40,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014576931] [2024-11-28 03:38:40,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:40,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:40,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:40,378 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:40,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 03:38:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:40,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-28 03:38:40,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:42,306 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-11-28 03:38:42,306 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:52,538 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 03:39:00,964 WARN L286 SmtUtils]: Spent 6.36s on a formula simplification that was a NOOP. DAG size: 100 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:39:37,764 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 03:40:14,729 WARN L286 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 03:40:19,396 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-28 03:40:19,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:19,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671063732] [2024-11-28 03:40:19,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:40:19,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014576931] [2024-11-28 03:40:19,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014576931] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:40:19,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:40:19,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 28 [2024-11-28 03:40:19,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044294532] [2024-11-28 03:40:19,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:40:19,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 03:40:19,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:19,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 03:40:19,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:40:19,399 INFO L87 Difference]: Start difference. First operand 556 states and 714 transitions. Second operand has 29 states, 28 states have (on average 4.535714285714286) internal successors, (127), 29 states have internal predecessors, (127), 14 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-28 03:41:26,694 WARN L286 SmtUtils]: Spent 1.10m on a formula simplification. DAG size of input: 186 DAG size of output: 181 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:41:38,036 WARN L286 SmtUtils]: Spent 9.18s on a formula simplification. DAG size of input: 99 DAG size of output: 88 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:42:21,256 WARN L286 SmtUtils]: Spent 37.48s on a formula simplification. DAG size of input: 175 DAG size of output: 171 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:42:39,879 WARN L286 SmtUtils]: Spent 17.54s on a formula simplification. DAG size of input: 105 DAG size of output: 94 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:42:45,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:42:49,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:42:52,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:42:58,981 WARN L286 SmtUtils]: Spent 5.81s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:43:00,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:43:04,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:43:10,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:43:14,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:43:18,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:43:21,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:43:24,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:43:27,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:43:54,339 WARN L286 SmtUtils]: Spent 17.39s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:43:58,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:44:11,757 WARN L286 SmtUtils]: Spent 9.61s on a formula simplification that was a NOOP. DAG size: 96 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:44:14,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:44:19,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:44:23,143 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 [] [2024-11-28 03:44:35,768 WARN L286 SmtUtils]: Spent 11.94s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:44:39,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:39,340 INFO L93 Difference]: Finished difference Result 656 states and 843 transitions. [2024-11-28 03:44:39,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-28 03:44:39,341 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.535714285714286) internal successors, (127), 29 states have internal predecessors, (127), 14 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) Word has length 150 [2024-11-28 03:44:39,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:39,342 INFO L225 Difference]: With dead ends: 656 [2024-11-28 03:44:39,343 INFO L226 Difference]: Without dead ends: 640 [2024-11-28 03:44:39,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 202.6s TimeCoverageRelationStatistics Valid=959, Invalid=3201, Unknown=0, NotChecked=0, Total=4160 [2024-11-28 03:44:39,344 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 462 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 151 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 1599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:39,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 403 Invalid, 1599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1444 Invalid, 4 Unknown, 0 Unchecked, 67.6s Time] [2024-11-28 03:44:39,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-11-28 03:44:39,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 597. [2024-11-28 03:44:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 496 states have (on average 1.1774193548387097) internal successors, (584), 504 states have internal predecessors, (584), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 03:44:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 764 transitions. [2024-11-28 03:44:39,570 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 764 transitions. Word has length 150 [2024-11-28 03:44:39,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:39,570 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 764 transitions. [2024-11-28 03:44:39,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.535714285714286) internal successors, (127), 29 states have internal predecessors, (127), 14 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-28 03:44:39,571 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 764 transitions. [2024-11-28 03:44:39,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:44:39,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:39,571 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:44:39,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 03:44:39,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 03:44:39,772 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:44:39,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:39,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1721134809, now seen corresponding path program 2 times [2024-11-28 03:44:39,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:39,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981144730] [2024-11-28 03:44:39,772 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:44:39,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:39,798 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:44:39,798 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:44:39,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508405043] [2024-11-28 03:44:39,799 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:44:39,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:44:39,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:44:39,802 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:44:39,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 03:44:39,889 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:44:39,889 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:44:39,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 03:44:39,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:44:40,919 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-28 03:44:40,919 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:44:45,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:45,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981144730] [2024-11-28 03:44:45,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:44:45,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508405043] [2024-11-28 03:44:45,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508405043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:44:45,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:44:45,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 03:44:45,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140429455] [2024-11-28 03:44:45,597 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:44:45,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:44:45,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:45,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:44:45,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:44:45,598 INFO L87 Difference]: Start difference. First operand 597 states and 764 transitions. Second operand has 15 states, 14 states have (on average 4.785714285714286) internal successors, (67), 15 states have internal predecessors, (67), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:44:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:46,564 INFO L93 Difference]: Finished difference Result 602 states and 770 transitions. [2024-11-28 03:44:46,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:44:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.785714285714286) internal successors, (67), 15 states have internal predecessors, (67), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 151 [2024-11-28 03:44:46,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:46,567 INFO L225 Difference]: With dead ends: 602 [2024-11-28 03:44:46,567 INFO L226 Difference]: Without dead ends: 601 [2024-11-28 03:44:46,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:44:46,569 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 22 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:46,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 387 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:44:46,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-28 03:44:46,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 598. [2024-11-28 03:44:46,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 497 states have (on average 1.1770623742454729) internal successors, (585), 505 states have internal predecessors, (585), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 03:44:46,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 765 transitions. [2024-11-28 03:44:46,786 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 765 transitions. Word has length 151 [2024-11-28 03:44:46,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:46,786 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 765 transitions. [2024-11-28 03:44:46,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.785714285714286) internal successors, (67), 15 states have internal predecessors, (67), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:44:46,786 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 765 transitions. [2024-11-28 03:44:46,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 03:44:46,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:46,788 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:44:46,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-28 03:44:46,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 03:44:46,989 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:44:46,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:46,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1815571404, now seen corresponding path program 2 times [2024-11-28 03:44:46,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:46,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810010632] [2024-11-28 03:44:46,989 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:44:46,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:47,017 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:44:47,017 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:44:47,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043849518] [2024-11-28 03:44:47,018 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:44:47,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:44:47,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:44:47,021 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:44:47,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 03:44:47,119 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:44:47,119 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:44:47,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:44:47,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:44:47,787 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-28 03:44:47,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:44:56,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:56,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810010632] [2024-11-28 03:44:56,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:44:56,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043849518] [2024-11-28 03:44:56,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043849518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:44:56,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:44:56,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 03:44:56,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557058599] [2024-11-28 03:44:56,542 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:44:56,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:44:56,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:56,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:44:56,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=119, Unknown=2, NotChecked=0, Total=156 [2024-11-28 03:44:56,543 INFO L87 Difference]: Start difference. First operand 598 states and 765 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:44:57,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:57,376 INFO L93 Difference]: Finished difference Result 602 states and 769 transitions. [2024-11-28 03:44:57,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:44:57,377 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 152 [2024-11-28 03:44:57,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:57,379 INFO L225 Difference]: With dead ends: 602 [2024-11-28 03:44:57,379 INFO L226 Difference]: Without dead ends: 601 [2024-11-28 03:44:57,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=53, Invalid=185, Unknown=2, NotChecked=0, Total=240 [2024-11-28 03:44:57,379 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 26 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:57,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 330 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:44:57,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-28 03:44:57,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 599. [2024-11-28 03:44:57,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 498 states have (on average 1.176706827309237) internal successors, (586), 506 states have internal predecessors, (586), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 03:44:57,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 766 transitions. [2024-11-28 03:44:57,611 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 766 transitions. Word has length 152 [2024-11-28 03:44:57,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:57,611 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 766 transitions. [2024-11-28 03:44:57,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:44:57,611 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 766 transitions. [2024-11-28 03:44:57,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:44:57,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:57,612 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:44:57,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 03:44:57,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 03:44:57,812 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:44:57,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:57,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1007393066, now seen corresponding path program 2 times [2024-11-28 03:44:57,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:57,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745739290] [2024-11-28 03:44:57,813 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:44:57,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:57,846 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:44:57,846 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:44:57,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911363672] [2024-11-28 03:44:57,848 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:44:57,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:44:57,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:44:57,852 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:44:57,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 03:44:57,933 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:44:57,933 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:44:57,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 03:44:57,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:44:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 42 proven. 64 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-11-28 03:44:59,659 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:45:10,698 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 42 proven. 58 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-28 03:45:10,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:10,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745739290] [2024-11-28 03:45:10,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:45:10,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911363672] [2024-11-28 03:45:10,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911363672] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:45:10,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:45:10,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 39 [2024-11-28 03:45:10,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137266019] [2024-11-28 03:45:10,699 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:45:10,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-28 03:45:10,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:10,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-28 03:45:10,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=1211, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 03:45:10,701 INFO L87 Difference]: Start difference. First operand 599 states and 766 transitions. Second operand has 40 states, 39 states have (on average 3.58974358974359) internal successors, (140), 38 states have internal predecessors, (140), 14 states have call successors, (35), 1 states have call predecessors, (35), 3 states have return successors, (36), 16 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-28 03:45:25,972 WARN L286 SmtUtils]: Spent 13.72s on a formula simplification. DAG size of input: 121 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:45:42,172 WARN L286 SmtUtils]: Spent 10.31s on a formula simplification. DAG size of input: 116 DAG size of output: 88 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:45:53,119 WARN L286 SmtUtils]: Spent 9.56s on a formula simplification. DAG size of input: 119 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:46:00,317 WARN L286 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 119 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:46:09,124 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 [] [2024-11-28 03:46:24,275 WARN L286 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 116 DAG size of output: 109 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:46:37,727 WARN L286 SmtUtils]: Spent 9.48s on a formula simplification. DAG size of input: 121 DAG size of output: 114 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:46:48,471 WARN L286 SmtUtils]: Spent 9.21s on a formula simplification. DAG size of input: 123 DAG size of output: 116 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:46:55,786 WARN L286 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 120 DAG size of output: 113 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:47:03,193 WARN L286 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 87 DAG size of output: 87 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:47:10,061 WARN L286 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 91 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:47:18,058 WARN L286 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 93 DAG size of output: 93 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:47:35,045 WARN L286 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 91 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:47:43,272 WARN L286 SmtUtils]: Spent 7.38s on a formula simplification. DAG size of input: 93 DAG size of output: 93 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:47:43,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:43,565 INFO L93 Difference]: Finished difference Result 636 states and 817 transitions. [2024-11-28 03:47:43,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-28 03:47:43,565 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.58974358974359) internal successors, (140), 38 states have internal predecessors, (140), 14 states have call successors, (35), 1 states have call predecessors, (35), 3 states have return successors, (36), 16 states have call predecessors, (36), 14 states have call successors, (36) Word has length 154 [2024-11-28 03:47:43,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:43,568 INFO L225 Difference]: With dead ends: 636 [2024-11-28 03:47:43,568 INFO L226 Difference]: Without dead ends: 584 [2024-11-28 03:47:43,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1924 ImplicationChecksByTransitivity, 138.6s TimeCoverageRelationStatistics Valid=1757, Invalid=6253, Unknown=0, NotChecked=0, Total=8010 [2024-11-28 03:47:43,570 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 494 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 176 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:43,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 421 Invalid, 2123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 1946 Invalid, 1 Unknown, 0 Unchecked, 17.5s Time] [2024-11-28 03:47:43,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-28 03:47:43,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 497. [2024-11-28 03:47:43,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 411 states have (on average 1.1995133819951338) internal successors, (493), 418 states have internal predecessors, (493), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-28 03:47:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 645 transitions. [2024-11-28 03:47:43,869 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 645 transitions. Word has length 154 [2024-11-28 03:47:43,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:43,869 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 645 transitions. [2024-11-28 03:47:43,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.58974358974359) internal successors, (140), 38 states have internal predecessors, (140), 14 states have call successors, (35), 1 states have call predecessors, (35), 3 states have return successors, (36), 16 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-28 03:47:43,870 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 645 transitions. [2024-11-28 03:47:43,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 03:47:43,871 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:43,871 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:47:43,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 03:47:44,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 03:47:44,075 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:47:44,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:44,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1430429712, now seen corresponding path program 5 times [2024-11-28 03:47:44,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:44,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033147318] [2024-11-28 03:47:44,076 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:47:44,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:44,113 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-28 03:47:44,113 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:47:44,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243102791] [2024-11-28 03:47:44,115 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:47:44,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:44,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:44,118 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:44,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 03:47:44,223 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-28 03:47:44,223 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:47:44,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 03:47:44,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:46,032 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 12 proven. 109 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2024-11-28 03:47:46,033 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:47:46,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:46,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033147318] [2024-11-28 03:47:46,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:47:46,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243102791] [2024-11-28 03:47:46,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243102791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:46,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:46,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-11-28 03:47:46,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946091714] [2024-11-28 03:47:46,449 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:47:46,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 03:47:46,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:46,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 03:47:46,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:47:46,450 INFO L87 Difference]: Start difference. First operand 497 states and 645 transitions. Second operand has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 8 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-28 03:47:47,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:47,878 INFO L93 Difference]: Finished difference Result 562 states and 728 transitions. [2024-11-28 03:47:47,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:47:47,879 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 8 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 157 [2024-11-28 03:47:47,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:47,881 INFO L225 Difference]: With dead ends: 562 [2024-11-28 03:47:47,881 INFO L226 Difference]: Without dead ends: 560 [2024-11-28 03:47:47,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:47:47,881 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 86 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:47,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 350 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:47:47,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-28 03:47:48,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 543. [2024-11-28 03:47:48,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 451 states have (on average 1.1951219512195121) internal successors, (539), 458 states have internal predecessors, (539), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-28 03:47:48,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 703 transitions. [2024-11-28 03:47:48,078 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 703 transitions. Word has length 157 [2024-11-28 03:47:48,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:48,078 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 703 transitions. [2024-11-28 03:47:48,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 8 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-28 03:47:48,078 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 703 transitions. [2024-11-28 03:47:48,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-28 03:47:48,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:48,080 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:47:48,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-28 03:47:48,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-28 03:47:48,281 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:47:48,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:48,281 INFO L85 PathProgramCache]: Analyzing trace with hash 880374135, now seen corresponding path program 2 times [2024-11-28 03:47:48,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:48,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628345915] [2024-11-28 03:47:48,281 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:47:48,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:48,302 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:47:48,303 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:47:48,720 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 22 proven. 58 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-28 03:47:48,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:48,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628345915] [2024-11-28 03:47:48,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628345915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:48,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145496111] [2024-11-28 03:47:48,721 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:47:48,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:48,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:48,723 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:48,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 03:47:48,803 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:47:48,803 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:47:48,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:47:48,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:48,983 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 48 proven. 32 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-28 03:47:48,983 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:47:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 48 proven. 32 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-28 03:47:49,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145496111] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:47:49,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:47:49,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 9 [2024-11-28 03:47:49,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787052055] [2024-11-28 03:47:49,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:47:49,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:47:49,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:49,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:47:49,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:47:49,330 INFO L87 Difference]: Start difference. First operand 543 states and 703 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) [2024-11-28 03:47:49,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:49,776 INFO L93 Difference]: Finished difference Result 601 states and 778 transitions. [2024-11-28 03:47:49,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:47:49,777 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) Word has length 169 [2024-11-28 03:47:49,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:49,779 INFO L225 Difference]: With dead ends: 601 [2024-11-28 03:47:49,779 INFO L226 Difference]: Without dead ends: 597 [2024-11-28 03:47:49,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 332 SyntacticMatches, 7 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:47:49,779 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 40 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:49,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 289 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:47:49,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-11-28 03:47:50,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 596. [2024-11-28 03:47:50,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 494 states have (on average 1.1842105263157894) internal successors, (585), 501 states have internal predecessors, (585), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-28 03:47:50,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 769 transitions. [2024-11-28 03:47:50,079 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 769 transitions. Word has length 169 [2024-11-28 03:47:50,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:50,079 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 769 transitions. [2024-11-28 03:47:50,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) [2024-11-28 03:47:50,079 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 769 transitions. [2024-11-28 03:47:50,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-28 03:47:50,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:50,081 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-28 03:47:50,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 03:47:50,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:50,281 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:47:50,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:50,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1440619546, now seen corresponding path program 6 times [2024-11-28 03:47:50,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:50,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634306509] [2024-11-28 03:47:50,282 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:47:50,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:50,335 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-11-28 03:47:50,335 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:47:51,451 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 11 proven. 101 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2024-11-28 03:47:51,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:51,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634306509] [2024-11-28 03:47:51,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634306509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:51,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077805078] [2024-11-28 03:47:51,452 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:47:51,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:51,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:51,454 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:51,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7707ef5-aa22-4044-8335-b9e73797e4e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 03:47:51,585 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-28 03:47:51,585 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:47:51,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 03:47:51,589 INFO L279 TraceCheckSpWp]: Computing forward predicates...