./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9f971bd1a6fba471cdece6d295ca31488341eb806ea8364f7549d05755c7a031 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:37:23,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:37:23,862 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 22:37:23,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:37:23,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:37:23,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:37:23,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:37:23,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:37:23,917 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:37:23,922 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:37:23,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:37:23,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:37:23,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:37:23,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:37:23,927 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:37:23,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:37:23,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:37:23,929 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:37:23,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:37:23,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:37:23,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:37:23,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:37:23,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:37:23,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:37:23,932 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 22:37:23,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:37:23,933 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:37:23,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:37:23,934 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:37:23,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:37:23,936 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:37:23,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:37:23,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:37:23,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:37:23,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:37:23,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:37:23,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:37:23,938 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:37:23,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:37:23,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:37:23,939 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:37:23,939 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:37:23,939 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:37:23,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:37:23,940 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f971bd1a6fba471cdece6d295ca31488341eb806ea8364f7549d05755c7a031 [2023-11-23 22:37:24,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:37:24,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:37:24,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:37:24,330 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:37:24,332 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:37:24,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound10.c [2023-11-23 22:37:27,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:37:27,801 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:37:27,802 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound10.c [2023-11-23 22:37:27,811 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/data/1ca438586/0989114d69a94f8bb8f2368b2532fcee/FLAGb45c0f180 [2023-11-23 22:37:27,827 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/data/1ca438586/0989114d69a94f8bb8f2368b2532fcee [2023-11-23 22:37:27,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:37:27,832 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:37:27,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:37:27,834 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:37:27,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:37:27,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:37:27" (1/1) ... [2023-11-23 22:37:27,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca0d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:27, skipping insertion in model container [2023-11-23 22:37:27,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:37:27" (1/1) ... [2023-11-23 22:37:27,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:37:28,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:37:28,093 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:37:28,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:37:28,137 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:37:28,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28 WrapperNode [2023-11-23 22:37:28,138 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:37:28,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:37:28,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:37:28,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:37:28,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (1/1) ... [2023-11-23 22:37:28,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (1/1) ... [2023-11-23 22:37:28,209 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2023-11-23 22:37:28,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:37:28,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:37:28,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:37:28,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:37:28,224 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (1/1) ... [2023-11-23 22:37:28,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (1/1) ... [2023-11-23 22:37:28,226 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (1/1) ... [2023-11-23 22:37:28,238 INFO L189 HeapSplitter]: Split 10 memory accesses to 2 slices as follows [2, 8] [2023-11-23 22:37:28,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (1/1) ... [2023-11-23 22:37:28,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (1/1) ... [2023-11-23 22:37:28,243 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (1/1) ... [2023-11-23 22:37:28,247 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (1/1) ... [2023-11-23 22:37:28,248 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (1/1) ... [2023-11-23 22:37:28,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (1/1) ... [2023-11-23 22:37:28,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:37:28,253 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:37:28,253 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:37:28,254 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:37:28,255 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (1/1) ... [2023-11-23 22:37:28,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:37:28,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:28,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:37:28,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:37:28,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:37:28,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:37:28,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 22:37:28,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:37:28,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:37:28,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 22:37:28,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 22:37:28,437 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:37:28,440 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:37:28,799 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:37:28,834 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:37:28,835 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 22:37:28,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:37:28 BoogieIcfgContainer [2023-11-23 22:37:28,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:37:28,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:37:28,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:37:28,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:37:28,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:37:27" (1/3) ... [2023-11-23 22:37:28,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329d3e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:37:28, skipping insertion in model container [2023-11-23 22:37:28,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:28" (2/3) ... [2023-11-23 22:37:28,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329d3e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:37:28, skipping insertion in model container [2023-11-23 22:37:28,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:37:28" (3/3) ... [2023-11-23 22:37:28,846 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_unwindbound10.c [2023-11-23 22:37:28,874 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:37:28,875 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-23 22:37:28,966 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:37:28,975 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3893078f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:37:28,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-23 22:37:28,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 40 states have (on average 1.9) internal successors, (76), 68 states have internal predecessors, (76), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-23 22:37:28,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 22:37:28,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:28,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-23 22:37:28,993 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:29,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:29,004 INFO L85 PathProgramCache]: Analyzing trace with hash 163595, now seen corresponding path program 1 times [2023-11-23 22:37:29,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:29,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676590091] [2023-11-23 22:37:29,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:29,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:37:29,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:29,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676590091] [2023-11-23 22:37:29,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676590091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:29,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:29,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:37:29,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931358128] [2023-11-23 22:37:29,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:29,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:37:29,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:29,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:37:29,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:37:29,307 INFO L87 Difference]: Start difference. First operand has 77 states, 40 states have (on average 1.9) internal successors, (76), 68 states have internal predecessors, (76), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:37:29,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:29,440 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2023-11-23 22:37:29,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:37:29,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-23 22:37:29,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:29,453 INFO L225 Difference]: With dead ends: 157 [2023-11-23 22:37:29,454 INFO L226 Difference]: Without dead ends: 77 [2023-11-23 22:37:29,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:29,462 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 4 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:29,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 239 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:29,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-23 22:37:29,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-23 22:37:29,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 43 states have (on average 1.744186046511628) internal successors, (75), 70 states have internal predecessors, (75), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 22:37:29,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2023-11-23 22:37:29,515 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 3 [2023-11-23 22:37:29,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:29,515 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2023-11-23 22:37:29,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:37:29,516 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2023-11-23 22:37:29,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 22:37:29,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:29,518 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:29,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:37:29,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:29,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:29,520 INFO L85 PathProgramCache]: Analyzing trace with hash -576103490, now seen corresponding path program 1 times [2023-11-23 22:37:29,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:29,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475997572] [2023-11-23 22:37:29,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:29,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:29,561 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:29,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [611864818] [2023-11-23 22:37:29,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:29,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:29,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:29,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:29,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:37:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:29,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:37:29,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:29,742 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:37:29,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:29,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:29,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475997572] [2023-11-23 22:37:29,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:29,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611864818] [2023-11-23 22:37:29,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611864818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:29,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:29,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:37:29,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886851419] [2023-11-23 22:37:29,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:29,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:29,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:29,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:29,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:29,749 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:37:29,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:29,853 INFO L93 Difference]: Finished difference Result 170 states and 190 transitions. [2023-11-23 22:37:29,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:29,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-11-23 22:37:29,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:29,856 INFO L225 Difference]: With dead ends: 170 [2023-11-23 22:37:29,857 INFO L226 Difference]: Without dead ends: 116 [2023-11-23 22:37:29,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:29,860 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 34 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:29,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 122 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:29,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-23 22:37:29,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 100. [2023-11-23 22:37:29,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.6885245901639345) internal successors, (103), 88 states have internal predecessors, (103), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 22:37:29,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2023-11-23 22:37:29,881 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 16 [2023-11-23 22:37:29,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:29,883 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2023-11-23 22:37:29,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:37:29,883 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2023-11-23 22:37:29,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 22:37:29,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:29,885 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:29,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:30,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:30,110 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:30,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:30,111 INFO L85 PathProgramCache]: Analyzing trace with hash 117225432, now seen corresponding path program 1 times [2023-11-23 22:37:30,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:30,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946486509] [2023-11-23 22:37:30,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:30,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:30,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:30,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356393825] [2023-11-23 22:37:30,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:30,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:30,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:30,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:30,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:37:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:30,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:37:30,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:30,248 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:37:30,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:30,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:30,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946486509] [2023-11-23 22:37:30,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:30,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356393825] [2023-11-23 22:37:30,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356393825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:30,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:30,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:37:30,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751084855] [2023-11-23 22:37:30,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:30,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:30,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:30,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:30,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:30,253 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:30,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:30,326 INFO L93 Difference]: Finished difference Result 132 states and 159 transitions. [2023-11-23 22:37:30,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:30,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-11-23 22:37:30,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:30,330 INFO L225 Difference]: With dead ends: 132 [2023-11-23 22:37:30,330 INFO L226 Difference]: Without dead ends: 130 [2023-11-23 22:37:30,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:30,333 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 42 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:30,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 103 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:30,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-23 22:37:30,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 113. [2023-11-23 22:37:30,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 73 states have (on average 1.6849315068493151) internal successors, (123), 99 states have internal predecessors, (123), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:37:30,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 147 transitions. [2023-11-23 22:37:30,353 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 147 transitions. Word has length 24 [2023-11-23 22:37:30,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:30,354 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 147 transitions. [2023-11-23 22:37:30,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:30,354 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 147 transitions. [2023-11-23 22:37:30,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 22:37:30,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:30,356 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:30,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:30,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:30,579 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:30,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:30,580 INFO L85 PathProgramCache]: Analyzing trace with hash -660980348, now seen corresponding path program 1 times [2023-11-23 22:37:30,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:30,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485745225] [2023-11-23 22:37:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:30,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:30,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:30,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980433694] [2023-11-23 22:37:30,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:30,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:30,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:30,602 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:30,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:37:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:30,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:37:30,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:30,798 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:37:30,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:30,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:30,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485745225] [2023-11-23 22:37:30,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:30,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980433694] [2023-11-23 22:37:30,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980433694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:30,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:30,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:37:30,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226158223] [2023-11-23 22:37:30,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:30,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:37:30,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:30,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:37:30,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:30,803 INFO L87 Difference]: Start difference. First operand 113 states and 147 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:30,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:30,889 INFO L93 Difference]: Finished difference Result 113 states and 147 transitions. [2023-11-23 22:37:30,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:37:30,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-11-23 22:37:30,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:30,896 INFO L225 Difference]: With dead ends: 113 [2023-11-23 22:37:30,897 INFO L226 Difference]: Without dead ends: 111 [2023-11-23 22:37:30,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:37:30,902 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 67 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:30,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 195 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:30,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-23 22:37:30,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-23 22:37:30,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.63013698630137) internal successors, (119), 97 states have internal predecessors, (119), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:37:30,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 143 transitions. [2023-11-23 22:37:30,945 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 143 transitions. Word has length 25 [2023-11-23 22:37:30,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:30,950 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 143 transitions. [2023-11-23 22:37:30,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:30,950 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 143 transitions. [2023-11-23 22:37:30,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 22:37:30,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:30,951 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:30,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-23 22:37:31,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:31,160 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:31,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:31,160 INFO L85 PathProgramCache]: Analyzing trace with hash -660978842, now seen corresponding path program 1 times [2023-11-23 22:37:31,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:31,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578428379] [2023-11-23 22:37:31,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:31,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:31,183 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:31,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1671814724] [2023-11-23 22:37:31,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:31,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:31,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:31,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:31,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:37:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:31,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:37:31,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:37:31,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:31,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:31,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578428379] [2023-11-23 22:37:31,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:31,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671814724] [2023-11-23 22:37:31,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671814724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:31,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:31,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:37:31,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067537650] [2023-11-23 22:37:31,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:31,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:31,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:31,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:31,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:31,363 INFO L87 Difference]: Start difference. First operand 111 states and 143 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:31,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:31,461 INFO L93 Difference]: Finished difference Result 125 states and 150 transitions. [2023-11-23 22:37:31,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:31,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-11-23 22:37:31,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:31,469 INFO L225 Difference]: With dead ends: 125 [2023-11-23 22:37:31,469 INFO L226 Difference]: Without dead ends: 124 [2023-11-23 22:37:31,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:31,471 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 25 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:31,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 123 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:31,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-23 22:37:31,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 111. [2023-11-23 22:37:31,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.6164383561643836) internal successors, (118), 97 states have internal predecessors, (118), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:37:31,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2023-11-23 22:37:31,490 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 25 [2023-11-23 22:37:31,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:31,491 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2023-11-23 22:37:31,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:31,491 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2023-11-23 22:37:31,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 22:37:31,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:31,492 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:31,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:31,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:31,716 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:31,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:31,717 INFO L85 PathProgramCache]: Analyzing trace with hash 984445769, now seen corresponding path program 1 times [2023-11-23 22:37:31,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:31,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388720641] [2023-11-23 22:37:31,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:31,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:31,740 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:31,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102742456] [2023-11-23 22:37:31,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:31,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:31,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:31,759 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:31,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:37:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:31,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:37:31,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:31,899 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:37:31,899 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:31,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:31,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388720641] [2023-11-23 22:37:31,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:31,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102742456] [2023-11-23 22:37:31,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102742456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:31,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:31,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:37:31,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820155206] [2023-11-23 22:37:31,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:31,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:37:31,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:31,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:37:31,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:31,903 INFO L87 Difference]: Start difference. First operand 111 states and 142 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:31,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:31,991 INFO L93 Difference]: Finished difference Result 120 states and 151 transitions. [2023-11-23 22:37:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:37:31,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2023-11-23 22:37:31,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:31,994 INFO L225 Difference]: With dead ends: 120 [2023-11-23 22:37:31,994 INFO L226 Difference]: Without dead ends: 119 [2023-11-23 22:37:31,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:37:31,996 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 18 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:31,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 239 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:32,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-23 22:37:32,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2023-11-23 22:37:32,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 79 states have (on average 1.5569620253164558) internal successors, (123), 103 states have internal predecessors, (123), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:37:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 147 transitions. [2023-11-23 22:37:32,035 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 147 transitions. Word has length 26 [2023-11-23 22:37:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:32,036 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 147 transitions. [2023-11-23 22:37:32,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 147 transitions. [2023-11-23 22:37:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 22:37:32,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:32,044 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:32,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:32,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:32,263 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:32,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:32,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1159581497, now seen corresponding path program 1 times [2023-11-23 22:37:32,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:32,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560311108] [2023-11-23 22:37:32,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:32,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:32,277 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:32,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390678506] [2023-11-23 22:37:32,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:32,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:32,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:32,287 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:32,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 22:37:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:32,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:37:32,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:37:32,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:32,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:32,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560311108] [2023-11-23 22:37:32,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:32,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390678506] [2023-11-23 22:37:32,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390678506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:32,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:32,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:37:32,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507962158] [2023-11-23 22:37:32,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:32,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:37:32,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:32,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:37:32,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:37:32,432 INFO L87 Difference]: Start difference. First operand 118 states and 147 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:32,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:32,542 INFO L93 Difference]: Finished difference Result 134 states and 161 transitions. [2023-11-23 22:37:32,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:37:32,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-11-23 22:37:32,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:32,548 INFO L225 Difference]: With dead ends: 134 [2023-11-23 22:37:32,549 INFO L226 Difference]: Without dead ends: 126 [2023-11-23 22:37:32,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:37:32,552 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 13 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:32,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 339 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:32,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-23 22:37:32,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2023-11-23 22:37:32,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 82 states have (on average 1.524390243902439) internal successors, (125), 106 states have internal predecessors, (125), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:37:32,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 149 transitions. [2023-11-23 22:37:32,573 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 149 transitions. Word has length 28 [2023-11-23 22:37:32,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:32,574 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 149 transitions. [2023-11-23 22:37:32,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:32,574 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 149 transitions. [2023-11-23 22:37:32,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 22:37:32,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:32,582 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:32,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:32,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:32,787 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:32,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:32,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1159581515, now seen corresponding path program 1 times [2023-11-23 22:37:32,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:32,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140962422] [2023-11-23 22:37:32,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:32,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:32,801 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:32,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [652069173] [2023-11-23 22:37:32,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:32,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:32,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:32,803 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:32,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 22:37:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:32,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:37:32,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:37:32,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:32,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:32,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140962422] [2023-11-23 22:37:32,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:32,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652069173] [2023-11-23 22:37:32,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652069173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:32,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:32,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:37:32,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702839516] [2023-11-23 22:37:32,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:32,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:32,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:32,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:32,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:32,903 INFO L87 Difference]: Start difference. First operand 122 states and 149 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:32,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:32,957 INFO L93 Difference]: Finished difference Result 167 states and 198 transitions. [2023-11-23 22:37:32,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:32,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-11-23 22:37:32,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:32,961 INFO L225 Difference]: With dead ends: 167 [2023-11-23 22:37:32,961 INFO L226 Difference]: Without dead ends: 163 [2023-11-23 22:37:32,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:32,963 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 48 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:32,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 99 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:32,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-11-23 22:37:32,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 142. [2023-11-23 22:37:32,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 100 states have (on average 1.51) internal successors, (151), 124 states have internal predecessors, (151), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 22:37:32,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2023-11-23 22:37:32,978 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 28 [2023-11-23 22:37:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:32,979 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2023-11-23 22:37:32,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:32,979 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2023-11-23 22:37:32,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 22:37:32,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:32,980 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:33,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:33,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:33,202 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:33,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:33,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1961309005, now seen corresponding path program 1 times [2023-11-23 22:37:33,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:33,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771252270] [2023-11-23 22:37:33,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:33,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:33,216 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:33,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [81019565] [2023-11-23 22:37:33,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:33,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:33,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:33,218 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:33,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 22:37:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:33,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:37:33,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:33,431 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:37:33,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:33,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:33,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771252270] [2023-11-23 22:37:33,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:33,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81019565] [2023-11-23 22:37:33,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81019565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:33,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:33,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:37:33,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453843557] [2023-11-23 22:37:33,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:33,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:33,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:33,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:33,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:33,435 INFO L87 Difference]: Start difference. First operand 142 states and 179 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:33,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:33,525 INFO L93 Difference]: Finished difference Result 159 states and 186 transitions. [2023-11-23 22:37:33,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:33,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2023-11-23 22:37:33,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:33,528 INFO L225 Difference]: With dead ends: 159 [2023-11-23 22:37:33,528 INFO L226 Difference]: Without dead ends: 157 [2023-11-23 22:37:33,529 INFO L412 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 [2023-11-23 22:37:33,556 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 40 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:33,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 90 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:33,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-23 22:37:33,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2023-11-23 22:37:33,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 101 states have (on average 1.4752475247524752) internal successors, (149), 125 states have internal predecessors, (149), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 22:37:33,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 177 transitions. [2023-11-23 22:37:33,581 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 177 transitions. Word has length 30 [2023-11-23 22:37:33,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:33,582 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 177 transitions. [2023-11-23 22:37:33,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:33,582 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 177 transitions. [2023-11-23 22:37:33,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 22:37:33,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:33,587 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:33,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:33,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:33,809 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:33,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:33,810 INFO L85 PathProgramCache]: Analyzing trace with hash 2114608351, now seen corresponding path program 1 times [2023-11-23 22:37:33,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:33,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021596071] [2023-11-23 22:37:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:33,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:33,825 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:33,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1084574136] [2023-11-23 22:37:33,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:33,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:33,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:33,835 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:33,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 22:37:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:33,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:37:33,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:33,971 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:37:33,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:33,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:33,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021596071] [2023-11-23 22:37:33,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:33,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084574136] [2023-11-23 22:37:33,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084574136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:33,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:33,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:37:33,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343762161] [2023-11-23 22:37:33,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:33,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:37:33,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:33,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:37:33,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:33,977 INFO L87 Difference]: Start difference. First operand 143 states and 177 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:34,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:34,036 INFO L93 Difference]: Finished difference Result 143 states and 177 transitions. [2023-11-23 22:37:34,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:37:34,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2023-11-23 22:37:34,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:34,040 INFO L225 Difference]: With dead ends: 143 [2023-11-23 22:37:34,041 INFO L226 Difference]: Without dead ends: 142 [2023-11-23 22:37:34,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:37:34,043 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 12 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:34,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 253 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:34,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-23 22:37:34,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-11-23 22:37:34,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 101 states have (on average 1.4653465346534653) internal successors, (148), 124 states have internal predecessors, (148), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 22:37:34,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 176 transitions. [2023-11-23 22:37:34,061 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 176 transitions. Word has length 30 [2023-11-23 22:37:34,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:34,062 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 176 transitions. [2023-11-23 22:37:34,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:34,063 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 176 transitions. [2023-11-23 22:37:34,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 22:37:34,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:34,064 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:34,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-23 22:37:34,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 22:37:34,279 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:34,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:34,280 INFO L85 PathProgramCache]: Analyzing trace with hash 671037101, now seen corresponding path program 1 times [2023-11-23 22:37:34,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:34,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458057176] [2023-11-23 22:37:34,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:34,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:34,297 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:34,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152405777] [2023-11-23 22:37:34,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:34,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:34,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:34,299 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:34,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 22:37:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:34,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:37:34,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:34,480 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:37:34,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:34,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:34,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458057176] [2023-11-23 22:37:34,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:34,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152405777] [2023-11-23 22:37:34,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152405777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:34,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:34,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:37:34,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163162720] [2023-11-23 22:37:34,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:34,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:37:34,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:34,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:37:34,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:34,484 INFO L87 Difference]: Start difference. First operand 142 states and 176 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:34,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:34,622 INFO L93 Difference]: Finished difference Result 148 states and 180 transitions. [2023-11-23 22:37:34,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:37:34,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-11-23 22:37:34,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:34,625 INFO L225 Difference]: With dead ends: 148 [2023-11-23 22:37:34,625 INFO L226 Difference]: Without dead ends: 147 [2023-11-23 22:37:34,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:37:34,626 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 34 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:34,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 150 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:34,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-23 22:37:34,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 142. [2023-11-23 22:37:34,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 101 states have (on average 1.4554455445544554) internal successors, (147), 124 states have internal predecessors, (147), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 22:37:34,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 175 transitions. [2023-11-23 22:37:34,640 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 175 transitions. Word has length 31 [2023-11-23 22:37:34,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:34,640 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 175 transitions. [2023-11-23 22:37:34,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:34,641 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 175 transitions. [2023-11-23 22:37:34,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 22:37:34,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:34,642 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:34,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:34,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 22:37:34,851 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:34,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:34,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2049445602, now seen corresponding path program 1 times [2023-11-23 22:37:34,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:34,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29538375] [2023-11-23 22:37:34,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:34,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:34,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:34,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [126619781] [2023-11-23 22:37:34,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:34,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:34,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:34,863 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:34,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 22:37:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:34,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:37:34,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:34,997 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:37:34,998 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:37:35,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:35,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29538375] [2023-11-23 22:37:35,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:35,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126619781] [2023-11-23 22:37:35,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126619781] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:37:35,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:37:35,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-11-23 22:37:35,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143719939] [2023-11-23 22:37:35,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:35,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 22:37:35,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:35,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 22:37:35,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:37:35,077 INFO L87 Difference]: Start difference. First operand 142 states and 175 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 22:37:35,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:35,236 INFO L93 Difference]: Finished difference Result 282 states and 348 transitions. [2023-11-23 22:37:35,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 22:37:35,237 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2023-11-23 22:37:35,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:35,239 INFO L225 Difference]: With dead ends: 282 [2023-11-23 22:37:35,239 INFO L226 Difference]: Without dead ends: 198 [2023-11-23 22:37:35,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-23 22:37:35,240 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 54 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:35,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 429 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:35,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-23 22:37:35,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 182. [2023-11-23 22:37:35,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 133 states have (on average 1.4360902255639099) internal successors, (191), 156 states have internal predecessors, (191), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:37:35,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 231 transitions. [2023-11-23 22:37:35,258 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 231 transitions. Word has length 34 [2023-11-23 22:37:35,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:35,259 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 231 transitions. [2023-11-23 22:37:35,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 22:37:35,259 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 231 transitions. [2023-11-23 22:37:35,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-23 22:37:35,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:35,260 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:35,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:35,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 22:37:35,471 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:35,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:35,472 INFO L85 PathProgramCache]: Analyzing trace with hash -177943393, now seen corresponding path program 1 times [2023-11-23 22:37:35,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:35,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392977564] [2023-11-23 22:37:35,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:35,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:35,482 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:35,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [586019744] [2023-11-23 22:37:35,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:35,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:35,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:35,484 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:35,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 22:37:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:35,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:37:35,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:35,656 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:37:35,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:35,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:35,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392977564] [2023-11-23 22:37:35,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:35,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586019744] [2023-11-23 22:37:35,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586019744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:35,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:35,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:37:35,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318450790] [2023-11-23 22:37:35,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:35,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:37:35,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:35,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:37:35,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:37:35,661 INFO L87 Difference]: Start difference. First operand 182 states and 231 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:37:35,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:35,753 INFO L93 Difference]: Finished difference Result 194 states and 239 transitions. [2023-11-23 22:37:35,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:37:35,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2023-11-23 22:37:35,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:35,757 INFO L225 Difference]: With dead ends: 194 [2023-11-23 22:37:35,758 INFO L226 Difference]: Without dead ends: 185 [2023-11-23 22:37:35,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:37:35,759 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 71 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:35,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 126 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:35,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-23 22:37:35,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 178. [2023-11-23 22:37:35,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 133 states have (on average 1.3458646616541354) internal successors, (179), 152 states have internal predecessors, (179), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:37:35,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 219 transitions. [2023-11-23 22:37:35,801 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 219 transitions. Word has length 42 [2023-11-23 22:37:35,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:35,802 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 219 transitions. [2023-11-23 22:37:35,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:37:35,802 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 219 transitions. [2023-11-23 22:37:35,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 22:37:35,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:35,803 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:35,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:36,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 22:37:36,025 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:36,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:36,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1221277835, now seen corresponding path program 1 times [2023-11-23 22:37:36,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:36,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835485259] [2023-11-23 22:37:36,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:36,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:36,036 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:36,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411668213] [2023-11-23 22:37:36,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:36,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:36,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:36,038 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:36,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 22:37:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:36,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:37:36,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:37:36,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:36,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:36,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835485259] [2023-11-23 22:37:36,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:36,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411668213] [2023-11-23 22:37:36,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411668213] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:36,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:37:36,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-23 22:37:36,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715615318] [2023-11-23 22:37:36,346 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:36,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:37:36,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:36,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:37:36,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:37:36,348 INFO L87 Difference]: Start difference. First operand 178 states and 219 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:37:36,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:36,466 INFO L93 Difference]: Finished difference Result 269 states and 326 transitions. [2023-11-23 22:37:36,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:37:36,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 43 [2023-11-23 22:37:36,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:36,469 INFO L225 Difference]: With dead ends: 269 [2023-11-23 22:37:36,469 INFO L226 Difference]: Without dead ends: 265 [2023-11-23 22:37:36,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:37:36,471 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 69 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:36,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 141 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:36,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-11-23 22:37:36,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 232. [2023-11-23 22:37:36,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 181 states have (on average 1.3701657458563536) internal successors, (248), 200 states have internal predecessors, (248), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-23 22:37:36,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 300 transitions. [2023-11-23 22:37:36,496 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 300 transitions. Word has length 43 [2023-11-23 22:37:36,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:36,497 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 300 transitions. [2023-11-23 22:37:36,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:37:36,497 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 300 transitions. [2023-11-23 22:37:36,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 22:37:36,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:36,498 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:36,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:36,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 22:37:36,719 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:36,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1982985848, now seen corresponding path program 1 times [2023-11-23 22:37:36,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:36,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330066362] [2023-11-23 22:37:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:36,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:36,732 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:36,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945531357] [2023-11-23 22:37:36,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:36,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:36,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:36,734 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:36,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 22:37:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:36,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:37:36,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:36,961 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:37:36,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:36,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:36,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330066362] [2023-11-23 22:37:36,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:36,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945531357] [2023-11-23 22:37:36,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945531357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:36,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:36,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:37:36,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502331885] [2023-11-23 22:37:36,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:36,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:37:36,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:36,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:37:36,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:36,966 INFO L87 Difference]: Start difference. First operand 232 states and 300 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:37:37,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:37,129 INFO L93 Difference]: Finished difference Result 237 states and 304 transitions. [2023-11-23 22:37:37,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:37:37,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 48 [2023-11-23 22:37:37,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:37,132 INFO L225 Difference]: With dead ends: 237 [2023-11-23 22:37:37,132 INFO L226 Difference]: Without dead ends: 219 [2023-11-23 22:37:37,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:37,136 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 2 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:37,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 126 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:37,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-23 22:37:37,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-11-23 22:37:37,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 170 states have (on average 1.388235294117647) internal successors, (236), 189 states have internal predecessors, (236), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-23 22:37:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 284 transitions. [2023-11-23 22:37:37,160 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 284 transitions. Word has length 48 [2023-11-23 22:37:37,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:37,161 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 284 transitions. [2023-11-23 22:37:37,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 22:37:37,161 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 284 transitions. [2023-11-23 22:37:37,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-23 22:37:37,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:37,162 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-23 22:37:37,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:37,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 22:37:37,386 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:37,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:37,386 INFO L85 PathProgramCache]: Analyzing trace with hash 424230821, now seen corresponding path program 1 times [2023-11-23 22:37:37,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:37,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801514043] [2023-11-23 22:37:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:37,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:37,396 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:37,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [186405018] [2023-11-23 22:37:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:37,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:37,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:37,398 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:37,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 22:37:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:37,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:37:37,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:37:37,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:37,575 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:37:37,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:37,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801514043] [2023-11-23 22:37:37,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:37,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186405018] [2023-11-23 22:37:37,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186405018] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:37:37,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:37:37,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-23 22:37:37,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999901873] [2023-11-23 22:37:37,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:37,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:37:37,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:37,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:37:37,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:37:37,578 INFO L87 Difference]: Start difference. First operand 219 states and 284 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-23 22:37:37,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:37,826 INFO L93 Difference]: Finished difference Result 357 states and 437 transitions. [2023-11-23 22:37:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:37:37,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 51 [2023-11-23 22:37:37,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:37,830 INFO L225 Difference]: With dead ends: 357 [2023-11-23 22:37:37,830 INFO L226 Difference]: Without dead ends: 355 [2023-11-23 22:37:37,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:37:37,832 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 186 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:37,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 226 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:37:37,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-11-23 22:37:37,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 281. [2023-11-23 22:37:37,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 223 states have (on average 1.4035874439461884) internal successors, (313), 242 states have internal predecessors, (313), 33 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-23 22:37:37,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 379 transitions. [2023-11-23 22:37:37,867 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 379 transitions. Word has length 51 [2023-11-23 22:37:37,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:37,868 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 379 transitions. [2023-11-23 22:37:37,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-23 22:37:37,868 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 379 transitions. [2023-11-23 22:37:37,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 22:37:37,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:37,871 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-11-23 22:37:37,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:38,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 22:37:38,091 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:38,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:38,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1428308906, now seen corresponding path program 1 times [2023-11-23 22:37:38,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:38,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100728460] [2023-11-23 22:37:38,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:38,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:38,114 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:38,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [856382272] [2023-11-23 22:37:38,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:38,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:38,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:38,121 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:38,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 22:37:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:38,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:37:38,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:38,343 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 22:37:38,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:38,480 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 22:37:38,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:38,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100728460] [2023-11-23 22:37:38,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:38,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856382272] [2023-11-23 22:37:38,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856382272] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:37:38,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:37:38,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-23 22:37:38,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876311513] [2023-11-23 22:37:38,483 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:38,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 22:37:38,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:38,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 22:37:38,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-23 22:37:38,485 INFO L87 Difference]: Start difference. First operand 281 states and 379 transitions. Second operand has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-23 22:37:38,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:38,829 INFO L93 Difference]: Finished difference Result 334 states and 429 transitions. [2023-11-23 22:37:38,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 22:37:38,829 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 57 [2023-11-23 22:37:38,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:38,832 INFO L225 Difference]: With dead ends: 334 [2023-11-23 22:37:38,833 INFO L226 Difference]: Without dead ends: 322 [2023-11-23 22:37:38,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2023-11-23 22:37:38,835 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 122 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:38,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 576 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:38,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-23 22:37:38,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 305. [2023-11-23 22:37:38,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 245 states have (on average 1.379591836734694) internal successors, (338), 264 states have internal predecessors, (338), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-23 22:37:38,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 404 transitions. [2023-11-23 22:37:38,874 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 404 transitions. Word has length 57 [2023-11-23 22:37:38,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:38,875 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 404 transitions. [2023-11-23 22:37:38,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-23 22:37:38,875 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 404 transitions. [2023-11-23 22:37:38,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 22:37:38,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:38,876 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-11-23 22:37:38,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:39,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 22:37:39,091 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:39,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:39,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1428801452, now seen corresponding path program 1 times [2023-11-23 22:37:39,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:39,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571911871] [2023-11-23 22:37:39,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:39,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:39,111 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:39,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694935697] [2023-11-23 22:37:39,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:39,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:39,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:39,113 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:39,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 22:37:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:39,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:37:39,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:39,314 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-23 22:37:39,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:39,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:39,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571911871] [2023-11-23 22:37:39,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:39,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694935697] [2023-11-23 22:37:39,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694935697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:39,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:39,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:37:39,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230047673] [2023-11-23 22:37:39,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:39,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:39,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:39,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:39,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:39,318 INFO L87 Difference]: Start difference. First operand 305 states and 404 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:39,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:39,405 INFO L93 Difference]: Finished difference Result 329 states and 429 transitions. [2023-11-23 22:37:39,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:39,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2023-11-23 22:37:39,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:39,409 INFO L225 Difference]: With dead ends: 329 [2023-11-23 22:37:39,410 INFO L226 Difference]: Without dead ends: 323 [2023-11-23 22:37:39,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:39,411 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 30 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:39,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 81 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:39,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-11-23 22:37:39,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 301. [2023-11-23 22:37:39,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 241 states have (on average 1.3319502074688796) internal successors, (321), 260 states have internal predecessors, (321), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-23 22:37:39,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 387 transitions. [2023-11-23 22:37:39,442 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 387 transitions. Word has length 57 [2023-11-23 22:37:39,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:39,442 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 387 transitions. [2023-11-23 22:37:39,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:37:39,443 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 387 transitions. [2023-11-23 22:37:39,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 22:37:39,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:39,444 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-23 22:37:39,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:39,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 22:37:39,659 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:39,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:39,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1114975756, now seen corresponding path program 2 times [2023-11-23 22:37:39,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:39,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987646194] [2023-11-23 22:37:39,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:39,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:39,670 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:39,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [351711785] [2023-11-23 22:37:39,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:37:39,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:39,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:39,671 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:39,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 22:37:39,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:37:39,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:37:39,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:37:39,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:39,885 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-23 22:37:39,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:40,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:40,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987646194] [2023-11-23 22:37:40,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:40,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351711785] [2023-11-23 22:37:40,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351711785] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:40,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:37:40,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-23 22:37:40,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295220023] [2023-11-23 22:37:40,003 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:40,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:37:40,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:40,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:37:40,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:37:40,005 INFO L87 Difference]: Start difference. First operand 301 states and 387 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 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) [2023-11-23 22:37:40,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:40,188 INFO L93 Difference]: Finished difference Result 437 states and 548 transitions. [2023-11-23 22:37:40,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:37:40,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 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 69 [2023-11-23 22:37:40,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:40,192 INFO L225 Difference]: With dead ends: 437 [2023-11-23 22:37:40,193 INFO L226 Difference]: Without dead ends: 433 [2023-11-23 22:37:40,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:37:40,194 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 189 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:40,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 152 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-23 22:37:40,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 315. [2023-11-23 22:37:40,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 253 states have (on average 1.308300395256917) internal successors, (331), 272 states have internal predecessors, (331), 35 states have call successors, (35), 7 states have call predecessors, (35), 7 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-23 22:37:40,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 401 transitions. [2023-11-23 22:37:40,228 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 401 transitions. Word has length 69 [2023-11-23 22:37:40,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:40,229 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 401 transitions. [2023-11-23 22:37:40,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 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) [2023-11-23 22:37:40,230 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 401 transitions. [2023-11-23 22:37:40,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-23 22:37:40,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:40,231 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-23 22:37:40,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:40,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:40,455 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:40,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:40,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1868200099, now seen corresponding path program 1 times [2023-11-23 22:37:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:40,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960685048] [2023-11-23 22:37:40,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:40,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:40,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569597099] [2023-11-23 22:37:40,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:40,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:40,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:40,471 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:40,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 22:37:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:40,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:37:40,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:40,556 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-23 22:37:40,556 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:40,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:40,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960685048] [2023-11-23 22:37:40,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:40,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569597099] [2023-11-23 22:37:40,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569597099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:40,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:40,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:37:40,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089470834] [2023-11-23 22:37:40,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:40,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:40,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:40,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:40,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:40,559 INFO L87 Difference]: Start difference. First operand 315 states and 401 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:37:40,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:40,614 INFO L93 Difference]: Finished difference Result 315 states and 401 transitions. [2023-11-23 22:37:40,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:40,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 76 [2023-11-23 22:37:40,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:40,617 INFO L225 Difference]: With dead ends: 315 [2023-11-23 22:37:40,617 INFO L226 Difference]: Without dead ends: 314 [2023-11-23 22:37:40,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:40,619 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 4 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:40,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 111 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:40,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-23 22:37:40,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2023-11-23 22:37:40,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 253 states have (on average 1.2924901185770752) internal successors, (327), 271 states have internal predecessors, (327), 35 states have call successors, (35), 7 states have call predecessors, (35), 7 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-23 22:37:40,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 397 transitions. [2023-11-23 22:37:40,652 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 397 transitions. Word has length 76 [2023-11-23 22:37:40,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:40,653 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 397 transitions. [2023-11-23 22:37:40,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:37:40,653 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 397 transitions. [2023-11-23 22:37:40,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-23 22:37:40,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:40,654 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-23 22:37:40,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-23 22:37:40,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:40,867 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:40,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:40,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2079628105, now seen corresponding path program 1 times [2023-11-23 22:37:40,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:40,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782412464] [2023-11-23 22:37:40,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:40,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:40,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:40,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [849358992] [2023-11-23 22:37:40,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:40,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:40,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:40,880 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:40,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 22:37:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:40,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:37:40,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:41,175 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-23 22:37:41,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:41,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:41,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782412464] [2023-11-23 22:37:41,176 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:41,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849358992] [2023-11-23 22:37:41,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849358992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:41,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:41,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:37:41,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813760347] [2023-11-23 22:37:41,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:41,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:37:41,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:41,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:37:41,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:37:41,178 INFO L87 Difference]: Start difference. First operand 314 states and 397 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 22:37:41,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:41,303 INFO L93 Difference]: Finished difference Result 450 states and 581 transitions. [2023-11-23 22:37:41,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:37:41,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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 77 [2023-11-23 22:37:41,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:41,308 INFO L225 Difference]: With dead ends: 450 [2023-11-23 22:37:41,309 INFO L226 Difference]: Without dead ends: 448 [2023-11-23 22:37:41,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:37:41,310 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 49 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:41,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 133 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:41,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-11-23 22:37:41,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 422. [2023-11-23 22:37:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 349 states have (on average 1.32378223495702) internal successors, (462), 367 states have internal predecessors, (462), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-23 22:37:41,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 556 transitions. [2023-11-23 22:37:41,346 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 556 transitions. Word has length 77 [2023-11-23 22:37:41,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:41,346 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 556 transitions. [2023-11-23 22:37:41,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 22:37:41,347 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 556 transitions. [2023-11-23 22:37:41,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 22:37:41,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:41,348 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-23 22:37:41,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:41,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:41,574 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:41,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:41,574 INFO L85 PathProgramCache]: Analyzing trace with hash -43961697, now seen corresponding path program 1 times [2023-11-23 22:37:41,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:41,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367004776] [2023-11-23 22:37:41,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:41,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:41,586 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:41,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076143888] [2023-11-23 22:37:41,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:41,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:41,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:41,587 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:41,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-23 22:37:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:41,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:37:41,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-23 22:37:41,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:41,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:41,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367004776] [2023-11-23 22:37:41,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:41,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076143888] [2023-11-23 22:37:41,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076143888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:41,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:41,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:37:41,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918546528] [2023-11-23 22:37:41,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:41,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:37:41,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:41,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:37:41,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:41,929 INFO L87 Difference]: Start difference. First operand 422 states and 556 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:37:42,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:42,145 INFO L93 Difference]: Finished difference Result 445 states and 577 transitions. [2023-11-23 22:37:42,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:37:42,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 78 [2023-11-23 22:37:42,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:42,149 INFO L225 Difference]: With dead ends: 445 [2023-11-23 22:37:42,149 INFO L226 Difference]: Without dead ends: 444 [2023-11-23 22:37:42,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:42,152 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 76 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:42,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 115 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:42,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-11-23 22:37:42,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 431. [2023-11-23 22:37:42,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 358 states have (on average 1.312849162011173) internal successors, (470), 376 states have internal predecessors, (470), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-23 22:37:42,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 564 transitions. [2023-11-23 22:37:42,211 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 564 transitions. Word has length 78 [2023-11-23 22:37:42,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:42,212 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 564 transitions. [2023-11-23 22:37:42,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:37:42,212 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 564 transitions. [2023-11-23 22:37:42,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 22:37:42,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:42,213 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:42,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:42,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:42,414 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:42,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:42,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1362812487, now seen corresponding path program 1 times [2023-11-23 22:37:42,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:42,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437872063] [2023-11-23 22:37:42,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:42,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:42,426 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:42,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1832529551] [2023-11-23 22:37:42,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:42,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:42,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:42,428 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:42,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-23 22:37:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:42,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:37:42,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:42,656 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-23 22:37:42,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:42,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:42,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437872063] [2023-11-23 22:37:42,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:42,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832529551] [2023-11-23 22:37:42,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832529551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:42,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:42,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:37:42,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104033736] [2023-11-23 22:37:42,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:42,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:37:42,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:42,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:37:42,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:37:42,660 INFO L87 Difference]: Start difference. First operand 431 states and 564 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:37:42,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:42,753 INFO L93 Difference]: Finished difference Result 441 states and 570 transitions. [2023-11-23 22:37:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:42,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2023-11-23 22:37:42,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:42,757 INFO L225 Difference]: With dead ends: 441 [2023-11-23 22:37:42,758 INFO L226 Difference]: Without dead ends: 439 [2023-11-23 22:37:42,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:37:42,759 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 45 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:42,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 87 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:42,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-11-23 22:37:42,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 434. [2023-11-23 22:37:42,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 361 states have (on average 1.2880886426592797) internal successors, (465), 379 states have internal predecessors, (465), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-23 22:37:42,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 559 transitions. [2023-11-23 22:37:42,839 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 559 transitions. Word has length 79 [2023-11-23 22:37:42,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:42,839 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 559 transitions. [2023-11-23 22:37:42,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:37:42,840 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 559 transitions. [2023-11-23 22:37:42,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 22:37:42,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:42,841 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-23 22:37:42,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:43,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:43,055 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:43,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:43,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1411383508, now seen corresponding path program 1 times [2023-11-23 22:37:43,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:43,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724996060] [2023-11-23 22:37:43,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:43,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:43,070 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:43,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1423377918] [2023-11-23 22:37:43,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:43,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:43,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:43,073 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:43,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 22:37:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:43,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:37:43,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:43,482 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-23 22:37:43,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:44,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:44,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724996060] [2023-11-23 22:37:44,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:44,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423377918] [2023-11-23 22:37:44,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423377918] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:44,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:37:44,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-23 22:37:44,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305668837] [2023-11-23 22:37:44,228 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:44,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:37:44,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:44,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:37:44,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:37:44,229 INFO L87 Difference]: Start difference. First operand 434 states and 559 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:37:44,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:44,422 INFO L93 Difference]: Finished difference Result 533 states and 687 transitions. [2023-11-23 22:37:44,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:37:44,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 84 [2023-11-23 22:37:44,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:44,427 INFO L225 Difference]: With dead ends: 533 [2023-11-23 22:37:44,427 INFO L226 Difference]: Without dead ends: 532 [2023-11-23 22:37:44,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:37:44,428 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 119 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:44,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 125 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-11-23 22:37:44,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 488. [2023-11-23 22:37:44,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 409 states have (on average 1.3178484107579462) internal successors, (539), 427 states have internal predecessors, (539), 53 states have call successors, (53), 7 states have call predecessors, (53), 7 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-23 22:37:44,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 645 transitions. [2023-11-23 22:37:44,478 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 645 transitions. Word has length 84 [2023-11-23 22:37:44,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:44,479 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 645 transitions. [2023-11-23 22:37:44,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:37:44,479 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 645 transitions. [2023-11-23 22:37:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 22:37:44,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:44,480 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:44,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:44,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:44,702 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:44,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:44,702 INFO L85 PathProgramCache]: Analyzing trace with hash 803215874, now seen corresponding path program 1 times [2023-11-23 22:37:44,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:44,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533754224] [2023-11-23 22:37:44,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:44,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:44,717 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:44,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1800058868] [2023-11-23 22:37:44,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:44,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:44,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:44,719 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:44,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-23 22:37:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:44,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:37:44,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:45,151 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-23 22:37:45,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:45,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:45,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533754224] [2023-11-23 22:37:45,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:45,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800058868] [2023-11-23 22:37:45,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800058868] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:45,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:37:45,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-23 22:37:45,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524191517] [2023-11-23 22:37:45,559 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:45,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:37:45,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:45,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:37:45,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:37:45,561 INFO L87 Difference]: Start difference. First operand 488 states and 645 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:37:45,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:45,728 INFO L93 Difference]: Finished difference Result 493 states and 645 transitions. [2023-11-23 22:37:45,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:37:45,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 85 [2023-11-23 22:37:45,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:45,733 INFO L225 Difference]: With dead ends: 493 [2023-11-23 22:37:45,733 INFO L226 Difference]: Without dead ends: 490 [2023-11-23 22:37:45,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:37:45,734 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 83 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:45,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 69 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:45,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2023-11-23 22:37:45,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 486. [2023-11-23 22:37:45,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 409 states have (on average 1.276283618581907) internal successors, (522), 425 states have internal predecessors, (522), 53 states have call successors, (53), 7 states have call predecessors, (53), 7 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-23 22:37:45,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 628 transitions. [2023-11-23 22:37:45,799 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 628 transitions. Word has length 85 [2023-11-23 22:37:45,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:45,800 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 628 transitions. [2023-11-23 22:37:45,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:37:45,801 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 628 transitions. [2023-11-23 22:37:45,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 22:37:45,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:45,804 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:45,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:46,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:46,028 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:46,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:46,028 INFO L85 PathProgramCache]: Analyzing trace with hash -870111594, now seen corresponding path program 1 times [2023-11-23 22:37:46,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:46,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327450888] [2023-11-23 22:37:46,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:46,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:46,042 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:46,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1284961639] [2023-11-23 22:37:46,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:46,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:46,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:46,044 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:46,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-23 22:37:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:46,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:37:46,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:46,150 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-23 22:37:46,150 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:46,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:46,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327450888] [2023-11-23 22:37:46,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:46,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284961639] [2023-11-23 22:37:46,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284961639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:46,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:46,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:37:46,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453808841] [2023-11-23 22:37:46,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:46,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:37:46,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:46,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:37:46,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:46,154 INFO L87 Difference]: Start difference. First operand 486 states and 628 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:37:46,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:46,305 INFO L93 Difference]: Finished difference Result 530 states and 680 transitions. [2023-11-23 22:37:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:37:46,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 86 [2023-11-23 22:37:46,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:46,309 INFO L225 Difference]: With dead ends: 530 [2023-11-23 22:37:46,309 INFO L226 Difference]: Without dead ends: 528 [2023-11-23 22:37:46,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:37:46,312 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 69 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:46,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 183 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:46,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-11-23 22:37:46,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 446. [2023-11-23 22:37:46,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 376 states have (on average 1.2313829787234043) internal successors, (463), 391 states have internal predecessors, (463), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-23 22:37:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 557 transitions. [2023-11-23 22:37:46,380 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 557 transitions. Word has length 86 [2023-11-23 22:37:46,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:46,380 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 557 transitions. [2023-11-23 22:37:46,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 22:37:46,381 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 557 transitions. [2023-11-23 22:37:46,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-23 22:37:46,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:46,382 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:46,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:46,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:46,595 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:46,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:46,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1203655548, now seen corresponding path program 1 times [2023-11-23 22:37:46,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:46,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575138061] [2023-11-23 22:37:46,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:46,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:46,606 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:46,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [52651220] [2023-11-23 22:37:46,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:46,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:46,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:46,608 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:46,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-23 22:37:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:46,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 22:37:46,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:47,176 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-23 22:37:47,176 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:48,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:48,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575138061] [2023-11-23 22:37:48,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:48,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52651220] [2023-11-23 22:37:48,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52651220] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:48,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:37:48,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-23 22:37:48,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797927558] [2023-11-23 22:37:48,030 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:48,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:37:48,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:48,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:37:48,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-23 22:37:48,031 INFO L87 Difference]: Start difference. First operand 446 states and 557 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 22:37:48,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:48,545 INFO L93 Difference]: Finished difference Result 523 states and 647 transitions. [2023-11-23 22:37:48,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:37:48,546 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 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 87 [2023-11-23 22:37:48,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:48,550 INFO L225 Difference]: With dead ends: 523 [2023-11-23 22:37:48,551 INFO L226 Difference]: Without dead ends: 522 [2023-11-23 22:37:48,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2023-11-23 22:37:48,552 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 108 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:48,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 259 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:37:48,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-11-23 22:37:48,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 474. [2023-11-23 22:37:48,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 400 states have (on average 1.2325) internal successors, (493), 415 states have internal predecessors, (493), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-23 22:37:48,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 595 transitions. [2023-11-23 22:37:48,612 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 595 transitions. Word has length 87 [2023-11-23 22:37:48,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:48,612 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 595 transitions. [2023-11-23 22:37:48,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 22:37:48,613 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 595 transitions. [2023-11-23 22:37:48,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-23 22:37:48,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:48,615 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:48,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:48,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-23 22:37:48,829 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:48,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:48,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1494603811, now seen corresponding path program 1 times [2023-11-23 22:37:48,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:48,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683419579] [2023-11-23 22:37:48,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:48,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:48,865 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:48,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1079253474] [2023-11-23 22:37:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:48,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:48,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:48,871 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:48,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-23 22:37:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:48,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 22:37:48,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:49,426 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 3 proven. 47 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-23 22:37:49,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:50,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:50,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683419579] [2023-11-23 22:37:50,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:50,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079253474] [2023-11-23 22:37:50,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079253474] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:50,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:37:50,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-23 22:37:50,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823266096] [2023-11-23 22:37:50,110 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:50,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 22:37:50,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:50,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 22:37:50,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:37:50,112 INFO L87 Difference]: Start difference. First operand 474 states and 595 transitions. Second operand has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 22:37:50,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:50,619 INFO L93 Difference]: Finished difference Result 562 states and 696 transitions. [2023-11-23 22:37:50,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 22:37:50,623 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 101 [2023-11-23 22:37:50,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:50,627 INFO L225 Difference]: With dead ends: 562 [2023-11-23 22:37:50,628 INFO L226 Difference]: Without dead ends: 461 [2023-11-23 22:37:50,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-23 22:37:50,631 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 40 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:50,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 317 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:37:50,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-23 22:37:50,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 453. [2023-11-23 22:37:50,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 381 states have (on average 1.2257217847769029) internal successors, (467), 396 states have internal predecessors, (467), 49 states have call successors, (49), 7 states have call predecessors, (49), 7 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-23 22:37:50,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 565 transitions. [2023-11-23 22:37:50,694 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 565 transitions. Word has length 101 [2023-11-23 22:37:50,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:50,701 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 565 transitions. [2023-11-23 22:37:50,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 22:37:50,701 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 565 transitions. [2023-11-23 22:37:50,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-23 22:37:50,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:50,703 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:50,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:50,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-23 22:37:50,924 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:50,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:50,924 INFO L85 PathProgramCache]: Analyzing trace with hash -911921985, now seen corresponding path program 1 times [2023-11-23 22:37:50,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:50,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839305278] [2023-11-23 22:37:50,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:50,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:50,962 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:50,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779372571] [2023-11-23 22:37:50,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:50,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:50,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:50,996 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:51,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-23 22:37:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:51,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-23 22:37:51,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:51,684 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 3 proven. 47 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-23 22:37:51,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:52,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:52,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839305278] [2023-11-23 22:37:52,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:52,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779372571] [2023-11-23 22:37:52,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779372571] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:52,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:37:52,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-23 22:37:52,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329128244] [2023-11-23 22:37:52,768 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:52,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 22:37:52,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:52,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 22:37:52,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2023-11-23 22:37:52,770 INFO L87 Difference]: Start difference. First operand 453 states and 565 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 22:37:53,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:53,182 INFO L93 Difference]: Finished difference Result 461 states and 572 transitions. [2023-11-23 22:37:53,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 22:37:53,183 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 102 [2023-11-23 22:37:53,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:53,186 INFO L225 Difference]: With dead ends: 461 [2023-11-23 22:37:53,187 INFO L226 Difference]: Without dead ends: 460 [2023-11-23 22:37:53,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-23 22:37:53,188 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 16 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:53,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 283 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:37:53,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-11-23 22:37:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 454. [2023-11-23 22:37:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 382 states have (on average 1.225130890052356) internal successors, (468), 397 states have internal predecessors, (468), 49 states have call successors, (49), 7 states have call predecessors, (49), 7 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-23 22:37:53,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 566 transitions. [2023-11-23 22:37:53,236 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 566 transitions. Word has length 102 [2023-11-23 22:37:53,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:53,236 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 566 transitions. [2023-11-23 22:37:53,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 22:37:53,237 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 566 transitions. [2023-11-23 22:37:53,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-23 22:37:53,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:53,239 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:53,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:53,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-23 22:37:53,457 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:53,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:53,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1795189669, now seen corresponding path program 1 times [2023-11-23 22:37:53,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:53,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412175436] [2023-11-23 22:37:53,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:53,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:53,470 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:53,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706894250] [2023-11-23 22:37:53,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:53,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:53,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:53,480 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:53,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-23 22:37:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:53,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:37:53,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:53,603 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-23 22:37:53,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:53,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:53,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412175436] [2023-11-23 22:37:53,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:53,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706894250] [2023-11-23 22:37:53,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706894250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:53,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:53,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:37:53,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549326916] [2023-11-23 22:37:53,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:53,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:37:53,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:53,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:37:53,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:53,607 INFO L87 Difference]: Start difference. First operand 454 states and 566 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 22:37:53,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:53,719 INFO L93 Difference]: Finished difference Result 458 states and 566 transitions. [2023-11-23 22:37:53,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:37:53,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 103 [2023-11-23 22:37:53,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:53,723 INFO L225 Difference]: With dead ends: 458 [2023-11-23 22:37:53,723 INFO L226 Difference]: Without dead ends: 457 [2023-11-23 22:37:53,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:37:53,725 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 30 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:53,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 189 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:53,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-23 22:37:53,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 453. [2023-11-23 22:37:53,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 382 states have (on average 1.2225130890052356) internal successors, (467), 396 states have internal predecessors, (467), 49 states have call successors, (49), 7 states have call predecessors, (49), 7 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-23 22:37:53,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 565 transitions. [2023-11-23 22:37:53,768 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 565 transitions. Word has length 103 [2023-11-23 22:37:53,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:53,768 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 565 transitions. [2023-11-23 22:37:53,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 22:37:53,768 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 565 transitions. [2023-11-23 22:37:53,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:37:53,770 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:53,770 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:53,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:53,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:53,991 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:53,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:53,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1256180845, now seen corresponding path program 1 times [2023-11-23 22:37:53,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:53,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722953084] [2023-11-23 22:37:53,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:53,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:54,004 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:54,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [46718858] [2023-11-23 22:37:54,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:54,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:54,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:54,006 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:54,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-23 22:37:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:54,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 22:37:54,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:54,248 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 6 proven. 211 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:37:54,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 6 proven. 31 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 22:37:54,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722953084] [2023-11-23 22:37:54,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46718858] [2023-11-23 22:37:54,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46718858] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:37:54,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:37:54,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-23 22:37:54,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452538701] [2023-11-23 22:37:54,472 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:54,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-23 22:37:54,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:54,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-23 22:37:54,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-11-23 22:37:54,474 INFO L87 Difference]: Start difference. First operand 453 states and 565 transitions. Second operand has 20 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 20 states have internal predecessors, (110), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-23 22:37:54,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:54,753 INFO L93 Difference]: Finished difference Result 719 states and 905 transitions. [2023-11-23 22:37:54,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-23 22:37:54,754 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 20 states have internal predecessors, (110), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 104 [2023-11-23 22:37:54,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:54,758 INFO L225 Difference]: With dead ends: 719 [2023-11-23 22:37:54,758 INFO L226 Difference]: Without dead ends: 718 [2023-11-23 22:37:54,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=223, Invalid=647, Unknown=0, NotChecked=0, Total=870 [2023-11-23 22:37:54,759 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 147 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:54,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 558 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:54,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2023-11-23 22:37:54,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 684. [2023-11-23 22:37:54,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 598 states have (on average 1.2424749163879598) internal successors, (743), 612 states have internal predecessors, (743), 61 states have call successors, (61), 10 states have call predecessors, (61), 10 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-23 22:37:54,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 865 transitions. [2023-11-23 22:37:54,817 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 865 transitions. Word has length 104 [2023-11-23 22:37:54,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:54,818 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 865 transitions. [2023-11-23 22:37:54,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 20 states have internal predecessors, (110), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-23 22:37:54,818 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 865 transitions. [2023-11-23 22:37:54,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-23 22:37:54,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:54,820 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2023-11-23 22:37:54,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:55,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:55,035 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:55,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:55,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1390862043, now seen corresponding path program 1 times [2023-11-23 22:37:55,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:55,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008369189] [2023-11-23 22:37:55,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:55,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:55,047 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:55,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [645796665] [2023-11-23 22:37:55,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:55,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:55,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:55,049 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:55,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-23 22:37:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:55,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:37:55,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:55,210 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 22:37:55,211 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 22:37:55,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:55,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008369189] [2023-11-23 22:37:55,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:55,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645796665] [2023-11-23 22:37:55,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645796665] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:37:55,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:37:55,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-23 22:37:55,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951792190] [2023-11-23 22:37:55,346 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:55,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 22:37:55,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:55,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 22:37:55,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:37:55,349 INFO L87 Difference]: Start difference. First operand 684 states and 865 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-23 22:37:55,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:55,723 INFO L93 Difference]: Finished difference Result 1179 states and 1459 transitions. [2023-11-23 22:37:55,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:37:55,723 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 105 [2023-11-23 22:37:55,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:55,730 INFO L225 Difference]: With dead ends: 1179 [2023-11-23 22:37:55,730 INFO L226 Difference]: Without dead ends: 1177 [2023-11-23 22:37:55,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:37:55,733 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 587 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:55,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 350 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:37:55,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2023-11-23 22:37:55,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 915. [2023-11-23 22:37:55,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 803 states have (on average 1.2528019925280198) internal successors, (1006), 817 states have internal predecessors, (1006), 87 states have call successors, (87), 10 states have call predecessors, (87), 10 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-23 22:37:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1180 transitions. [2023-11-23 22:37:55,820 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1180 transitions. Word has length 105 [2023-11-23 22:37:55,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:55,821 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1180 transitions. [2023-11-23 22:37:55,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-23 22:37:55,821 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1180 transitions. [2023-11-23 22:37:55,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:37:55,824 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:55,825 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:55,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:56,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:56,047 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:56,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:56,047 INFO L85 PathProgramCache]: Analyzing trace with hash -183694975, now seen corresponding path program 1 times [2023-11-23 22:37:56,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:56,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071895814] [2023-11-23 22:37:56,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:56,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:56,055 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:56,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492379476] [2023-11-23 22:37:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:56,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:56,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:56,057 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:56,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-23 22:37:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:56,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 22:37:56,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:56,336 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-23 22:37:56,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:56,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:56,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071895814] [2023-11-23 22:37:56,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:56,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492379476] [2023-11-23 22:37:56,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492379476] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:56,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:37:56,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-23 22:37:56,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302019678] [2023-11-23 22:37:56,396 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:56,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:37:56,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:56,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:37:56,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:37:56,398 INFO L87 Difference]: Start difference. First operand 915 states and 1180 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 22:37:56,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:56,601 INFO L93 Difference]: Finished difference Result 918 states and 1182 transitions. [2023-11-23 22:37:56,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:37:56,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 104 [2023-11-23 22:37:56,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:56,607 INFO L225 Difference]: With dead ends: 918 [2023-11-23 22:37:56,608 INFO L226 Difference]: Without dead ends: 874 [2023-11-23 22:37:56,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-23 22:37:56,612 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 35 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:56,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 274 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:56,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2023-11-23 22:37:56,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 874. [2023-11-23 22:37:56,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 767 states have (on average 1.2633637548891785) internal successors, (969), 781 states have internal predecessors, (969), 83 states have call successors, (83), 9 states have call predecessors, (83), 9 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2023-11-23 22:37:56,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1135 transitions. [2023-11-23 22:37:56,700 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1135 transitions. Word has length 104 [2023-11-23 22:37:56,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:56,700 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1135 transitions. [2023-11-23 22:37:56,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 22:37:56,701 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1135 transitions. [2023-11-23 22:37:56,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-23 22:37:56,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:56,703 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:56,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:56,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-23 22:37:56,919 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:56,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:56,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2049797853, now seen corresponding path program 1 times [2023-11-23 22:37:56,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:56,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613051032] [2023-11-23 22:37:56,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:56,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:56,930 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:56,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [700084332] [2023-11-23 22:37:56,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:56,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:56,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:56,932 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:56,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-23 22:37:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:57,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 22:37:57,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:57,217 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:37:57,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:57,460 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 22:37:57,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:57,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613051032] [2023-11-23 22:37:57,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:37:57,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700084332] [2023-11-23 22:37:57,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700084332] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:37:57,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:37:57,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2023-11-23 22:37:57,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612729318] [2023-11-23 22:37:57,461 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:37:57,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-23 22:37:57,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:57,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-23 22:37:57,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2023-11-23 22:37:57,463 INFO L87 Difference]: Start difference. First operand 874 states and 1135 transitions. Second operand has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 states have internal predecessors, (124), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-23 22:37:58,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:58,040 INFO L93 Difference]: Finished difference Result 1166 states and 1462 transitions. [2023-11-23 22:37:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-23 22:37:58,041 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 states have internal predecessors, (124), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 110 [2023-11-23 22:37:58,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:58,046 INFO L225 Difference]: With dead ends: 1166 [2023-11-23 22:37:58,047 INFO L226 Difference]: Without dead ends: 961 [2023-11-23 22:37:58,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1449, Unknown=0, NotChecked=0, Total=1892 [2023-11-23 22:37:58,049 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 155 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:58,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 722 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:37:58,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2023-11-23 22:37:58,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 926. [2023-11-23 22:37:58,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 811 states have (on average 1.2441430332922319) internal successors, (1009), 825 states have internal predecessors, (1009), 85 states have call successors, (85), 15 states have call predecessors, (85), 15 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-11-23 22:37:58,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1179 transitions. [2023-11-23 22:37:58,131 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1179 transitions. Word has length 110 [2023-11-23 22:37:58,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:58,131 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1179 transitions. [2023-11-23 22:37:58,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 states have internal predecessors, (124), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-23 22:37:58,132 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1179 transitions. [2023-11-23 22:37:58,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-23 22:37:58,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:58,133 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:58,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:58,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-23 22:37:58,353 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:37:58,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:58,353 INFO L85 PathProgramCache]: Analyzing trace with hash 317797507, now seen corresponding path program 2 times [2023-11-23 22:37:58,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:58,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205045922] [2023-11-23 22:37:58,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:58,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:58,364 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:37:58,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878101325] [2023-11-23 22:37:58,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:37:58,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:58,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:58,366 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:58,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-23 22:37:58,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:37:58,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:37:58,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 22:37:58,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:59,117 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 22:37:59,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:38:04,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:04,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205045922] [2023-11-23 22:38:04,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:38:04,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878101325] [2023-11-23 22:38:04,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878101325] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:38:04,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:38:04,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-23 22:38:04,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435205236] [2023-11-23 22:38:04,136 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:38:04,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 22:38:04,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:04,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 22:38:04,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=218, Unknown=2, NotChecked=0, Total=272 [2023-11-23 22:38:04,138 INFO L87 Difference]: Start difference. First operand 926 states and 1179 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-23 22:38:04,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:38:04,884 INFO L93 Difference]: Finished difference Result 981 states and 1245 transitions. [2023-11-23 22:38:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 22:38:04,885 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2023-11-23 22:38:04,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:38:04,892 INFO L225 Difference]: With dead ends: 981 [2023-11-23 22:38:04,892 INFO L226 Difference]: Without dead ends: 980 [2023-11-23 22:38:04,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=62, Invalid=242, Unknown=2, NotChecked=0, Total=306 [2023-11-23 22:38:04,894 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 38 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:38:04,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 528 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 935 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:38:04,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2023-11-23 22:38:04,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 966. [2023-11-23 22:38:04,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 847 states have (on average 1.2420306965761512) internal successors, (1052), 861 states have internal predecessors, (1052), 89 states have call successors, (89), 15 states have call predecessors, (89), 15 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-23 22:38:04,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1230 transitions. [2023-11-23 22:38:04,992 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1230 transitions. Word has length 113 [2023-11-23 22:38:04,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:38:04,993 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1230 transitions. [2023-11-23 22:38:04,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-23 22:38:04,993 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1230 transitions. [2023-11-23 22:38:04,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-23 22:38:04,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:38:04,995 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:38:05,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-23 22:38:05,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-23 22:38:05,215 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:38:05,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:05,215 INFO L85 PathProgramCache]: Analyzing trace with hash 203159010, now seen corresponding path program 2 times [2023-11-23 22:38:05,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:05,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285033299] [2023-11-23 22:38:05,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:05,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:05,225 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:38:05,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446995127] [2023-11-23 22:38:05,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:38:05,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:38:05,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:38:05,227 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:38:05,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-23 22:38:05,296 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:38:05,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:38:05,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:38:05,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:38:05,419 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-23 22:38:05,419 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:38:05,584 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-23 22:38:05,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:05,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285033299] [2023-11-23 22:38:05,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:38:05,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446995127] [2023-11-23 22:38:05,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446995127] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:38:05,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:38:05,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-11-23 22:38:05,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571940562] [2023-11-23 22:38:05,585 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:38:05,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:38:05,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:05,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:38:05,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:38:05,587 INFO L87 Difference]: Start difference. First operand 966 states and 1230 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-23 22:38:05,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:38:05,750 INFO L93 Difference]: Finished difference Result 983 states and 1242 transitions. [2023-11-23 22:38:05,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:38:05,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 127 [2023-11-23 22:38:05,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:38:05,757 INFO L225 Difference]: With dead ends: 983 [2023-11-23 22:38:05,757 INFO L226 Difference]: Without dead ends: 976 [2023-11-23 22:38:05,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 245 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:38:05,758 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 69 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:38:05,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 177 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:38:05,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-11-23 22:38:05,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 966. [2023-11-23 22:38:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 847 states have (on average 1.2373081463990554) internal successors, (1048), 861 states have internal predecessors, (1048), 89 states have call successors, (89), 15 states have call predecessors, (89), 15 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-23 22:38:05,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1226 transitions. [2023-11-23 22:38:05,849 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1226 transitions. Word has length 127 [2023-11-23 22:38:05,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:38:05,849 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1226 transitions. [2023-11-23 22:38:05,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-23 22:38:05,850 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1226 transitions. [2023-11-23 22:38:05,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-23 22:38:05,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:38:05,851 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1] [2023-11-23 22:38:05,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-23 22:38:06,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-23 22:38:06,067 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:38:06,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:06,067 INFO L85 PathProgramCache]: Analyzing trace with hash 465088482, now seen corresponding path program 2 times [2023-11-23 22:38:06,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:06,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696700824] [2023-11-23 22:38:06,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:06,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:06,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:38:06,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1834068713] [2023-11-23 22:38:06,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:38:06,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:38:06,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:38:06,079 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:38:06,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-23 22:38:06,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:38:06,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:38:06,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:38:06,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:38:06,291 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 22:38:06,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:38:06,473 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 22:38:06,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:06,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696700824] [2023-11-23 22:38:06,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:38:06,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834068713] [2023-11-23 22:38:06,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834068713] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:38:06,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:38:06,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-23 22:38:06,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691393158] [2023-11-23 22:38:06,475 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:38:06,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 22:38:06,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:06,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 22:38:06,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:38:06,477 INFO L87 Difference]: Start difference. First operand 966 states and 1226 transitions. Second operand has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 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) [2023-11-23 22:38:06,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:38:06,996 INFO L93 Difference]: Finished difference Result 1663 states and 2089 transitions. [2023-11-23 22:38:06,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 22:38:06,997 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 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 129 [2023-11-23 22:38:06,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:38:07,006 INFO L225 Difference]: With dead ends: 1663 [2023-11-23 22:38:07,007 INFO L226 Difference]: Without dead ends: 1661 [2023-11-23 22:38:07,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:38:07,008 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 513 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:38:07,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 457 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:38:07,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2023-11-23 22:38:07,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 992. [2023-11-23 22:38:07,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 867 states have (on average 1.2283737024221453) internal successors, (1065), 881 states have internal predecessors, (1065), 95 states have call successors, (95), 15 states have call predecessors, (95), 15 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2023-11-23 22:38:07,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1255 transitions. [2023-11-23 22:38:07,106 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1255 transitions. Word has length 129 [2023-11-23 22:38:07,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:38:07,107 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1255 transitions. [2023-11-23 22:38:07,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 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) [2023-11-23 22:38:07,107 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1255 transitions. [2023-11-23 22:38:07,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-23 22:38:07,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:38:07,109 INFO L195 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] [2023-11-23 22:38:07,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-23 22:38:07,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-23 22:38:07,323 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:38:07,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:07,323 INFO L85 PathProgramCache]: Analyzing trace with hash -168836972, now seen corresponding path program 1 times [2023-11-23 22:38:07,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:07,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947327181] [2023-11-23 22:38:07,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:07,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:07,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:38:07,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1313582149] [2023-11-23 22:38:07,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:07,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:38:07,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:38:07,337 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:38:07,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-23 22:38:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:07,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 22:38:07,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:38:07,750 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-23 22:38:07,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:38:08,253 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 34 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-23 22:38:08,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:08,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947327181] [2023-11-23 22:38:08,253 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:38:08,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313582149] [2023-11-23 22:38:08,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313582149] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:38:08,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:38:08,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-23 22:38:08,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575708023] [2023-11-23 22:38:08,254 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:38:08,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 22:38:08,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:08,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 22:38:08,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:38:08,256 INFO L87 Difference]: Start difference. First operand 992 states and 1255 transitions. Second operand has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-23 22:38:08,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:38:08,666 INFO L93 Difference]: Finished difference Result 1355 states and 1753 transitions. [2023-11-23 22:38:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 22:38:08,667 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 129 [2023-11-23 22:38:08,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:38:08,675 INFO L225 Difference]: With dead ends: 1355 [2023-11-23 22:38:08,675 INFO L226 Difference]: Without dead ends: 1353 [2023-11-23 22:38:08,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2023-11-23 22:38:08,681 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 246 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:38:08,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 288 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:38:08,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2023-11-23 22:38:08,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1223. [2023-11-23 22:38:08,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 1068 states have (on average 1.2322097378277153) internal successors, (1316), 1082 states have internal predecessors, (1316), 125 states have call successors, (125), 15 states have call predecessors, (125), 15 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2023-11-23 22:38:08,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1566 transitions. [2023-11-23 22:38:08,800 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1566 transitions. Word has length 129 [2023-11-23 22:38:08,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:38:08,802 INFO L495 AbstractCegarLoop]: Abstraction has 1223 states and 1566 transitions. [2023-11-23 22:38:08,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-23 22:38:08,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1566 transitions. [2023-11-23 22:38:08,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-23 22:38:08,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:38:08,805 INFO L195 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, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-23 22:38:08,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2023-11-23 22:38:09,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-23 22:38:09,026 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:38:09,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:09,027 INFO L85 PathProgramCache]: Analyzing trace with hash -687537624, now seen corresponding path program 1 times [2023-11-23 22:38:09,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:09,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456834988] [2023-11-23 22:38:09,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:09,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:09,039 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:38:09,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1691919296] [2023-11-23 22:38:09,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:09,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:38:09,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:38:09,041 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:38:09,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-23 22:38:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:09,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 22:38:09,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:38:09,401 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-23 22:38:09,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:38:13,713 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-23 22:38:13,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:13,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456834988] [2023-11-23 22:38:13,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:38:13,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691919296] [2023-11-23 22:38:13,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691919296] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:38:13,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:38:13,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 13 [2023-11-23 22:38:13,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562163097] [2023-11-23 22:38:13,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:38:13,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 22:38:13,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:13,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 22:38:13,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2023-11-23 22:38:13,717 INFO L87 Difference]: Start difference. First operand 1223 states and 1566 transitions. Second operand has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-23 22:38:14,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:38:14,138 INFO L93 Difference]: Finished difference Result 1473 states and 1906 transitions. [2023-11-23 22:38:14,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:38:14,139 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 134 [2023-11-23 22:38:14,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:38:14,147 INFO L225 Difference]: With dead ends: 1473 [2023-11-23 22:38:14,147 INFO L226 Difference]: Without dead ends: 1472 [2023-11-23 22:38:14,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=160, Unknown=0, NotChecked=0, Total=272 [2023-11-23 22:38:14,149 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 238 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:38:14,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 275 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:38:14,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2023-11-23 22:38:14,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1222. [2023-11-23 22:38:14,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1068 states have (on average 1.2209737827715357) internal successors, (1304), 1081 states have internal predecessors, (1304), 125 states have call successors, (125), 15 states have call predecessors, (125), 15 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2023-11-23 22:38:14,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1554 transitions. [2023-11-23 22:38:14,292 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1554 transitions. Word has length 134 [2023-11-23 22:38:14,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:38:14,293 INFO L495 AbstractCegarLoop]: Abstraction has 1222 states and 1554 transitions. [2023-11-23 22:38:14,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-23 22:38:14,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1554 transitions. [2023-11-23 22:38:14,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-23 22:38:14,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:38:14,295 INFO L195 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, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 22:38:14,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-23 22:38:14,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-23 22:38:14,516 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:38:14,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:14,516 INFO L85 PathProgramCache]: Analyzing trace with hash 161170256, now seen corresponding path program 1 times [2023-11-23 22:38:14,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:14,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930356842] [2023-11-23 22:38:14,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:14,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:14,526 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:38:14,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489946226] [2023-11-23 22:38:14,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:14,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:38:14,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:38:14,528 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:38:14,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ec6432-cd94-4052-a5de-ecb8c7cb3bbf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-23 22:38:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:14,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 22:38:14,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:38:14,989 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-23 22:38:14,990 INFO L327 TraceCheckSpWp]: Computing backward predicates...