./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl --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 df76811034b688387cfe28dd1eb6de91c21580662ac8ddb8163b41c1d6179172 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:20:42,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:20:42,142 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:20:42,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:20:42,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:20:42,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:20:42,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:20:42,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:20:42,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:20:42,179 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:20:42,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:20:42,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:20:42,181 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:20:42,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:20:42,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:20:42,183 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:20:42,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:20:42,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:20:42,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:20:42,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:20:42,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:20:42,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:20:42,192 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:20:42,193 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:20:42,193 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:20:42,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:20:42,196 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:20:42,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:20:42,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:20:42,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:20:42,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:42,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:20:42,201 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:20:42,201 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:20:42,201 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:20:42,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:20:42,202 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:20:42,202 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:20:42,202 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:20:42,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:20:42,203 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:20:42,203 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_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df76811034b688387cfe28dd1eb6de91c21580662ac8ddb8163b41c1d6179172 [2023-11-12 02:20:42,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:20:42,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:20:42,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:20:42,577 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:20:42,578 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:20:42,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c [2023-11-12 02:20:45,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:20:45,821 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:20:45,822 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c [2023-11-12 02:20:45,830 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/data/96284b37c/0e0bf07500824ca7b17a6e4c8922591f/FLAG80f508044 [2023-11-12 02:20:45,847 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/data/96284b37c/0e0bf07500824ca7b17a6e4c8922591f [2023-11-12 02:20:45,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:20:45,852 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:20:45,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:45,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:20:45,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:20:45,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:45" (1/1) ... [2023-11-12 02:20:45,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48d0f2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:45, skipping insertion in model container [2023-11-12 02:20:45,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:45" (1/1) ... [2023-11-12 02:20:45,885 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:20:46,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:46,096 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:20:46,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:46,133 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:20:46,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46 WrapperNode [2023-11-12 02:20:46,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:46,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:46,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:20:46,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:20:46,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,149 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,173 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2023-11-12 02:20:46,174 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:46,175 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:20:46,175 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:20:46,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:20:46,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,190 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,200 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,203 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:20:46,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:20:46,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:20:46,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:20:46,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:46,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:46,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:20:46,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:20:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:20:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:20:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:20:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:20:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:20:46,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:20:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:20:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:20:46,401 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:20:46,404 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:20:46,745 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:20:46,753 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:20:46,753 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-12 02:20:46,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:46 BoogieIcfgContainer [2023-11-12 02:20:46,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:20:46,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:20:46,760 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:20:46,764 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:20:46,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:20:45" (1/3) ... [2023-11-12 02:20:46,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c2443d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:46, skipping insertion in model container [2023-11-12 02:20:46,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (2/3) ... [2023-11-12 02:20:46,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c2443d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:46, skipping insertion in model container [2023-11-12 02:20:46,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:46" (3/3) ... [2023-11-12 02:20:46,769 INFO L112 eAbstractionObserver]: Analyzing ICFG init-non-constant-3-u.c [2023-11-12 02:20:46,793 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:20:46,793 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-12 02:20:46,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:20:46,851 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;@1cd5dd18, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:20:46,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-12 02:20:46,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 56 states have internal predecessors, (69), 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) [2023-11-12 02:20:46,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 02:20:46,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:46,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:20:46,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:46,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:46,873 INFO L85 PathProgramCache]: Analyzing trace with hash 28699914, now seen corresponding path program 1 times [2023-11-12 02:20:46,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:46,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170063647] [2023-11-12 02:20:46,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:46,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:46,980 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:46,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979060937] [2023-11-12 02:20:46,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:46,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:46,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:46,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:46,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:20:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:47,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:20:47,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:47,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:47,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:47,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:47,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170063647] [2023-11-12 02:20:47,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:47,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979060937] [2023-11-12 02:20:47,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979060937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:47,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:47,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:20:47,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221022978] [2023-11-12 02:20:47,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:47,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:20:47,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:47,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:20:47,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:47,215 INFO L87 Difference]: Start difference. First operand has 57 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 56 states have internal predecessors, (69), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:20:47,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:47,301 INFO L93 Difference]: Finished difference Result 109 states and 135 transitions. [2023-11-12 02:20:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:20:47,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-12 02:20:47,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:47,318 INFO L225 Difference]: With dead ends: 109 [2023-11-12 02:20:47,318 INFO L226 Difference]: Without dead ends: 49 [2023-11-12 02:20:47,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:47,325 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 50 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:47,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 34 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:47,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-12 02:20:47,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-12 02:20:47,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 48 states have internal predecessors, (54), 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) [2023-11-12 02:20:47,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2023-11-12 02:20:47,363 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 5 [2023-11-12 02:20:47,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:47,364 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2023-11-12 02:20:47,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:20:47,365 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2023-11-12 02:20:47,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 02:20:47,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:47,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:20:47,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:47,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:47,572 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:47,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:47,573 INFO L85 PathProgramCache]: Analyzing trace with hash 889697419, now seen corresponding path program 1 times [2023-11-12 02:20:47,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:47,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852723160] [2023-11-12 02:20:47,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:47,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:47,585 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:47,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687413735] [2023-11-12 02:20:47,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:47,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:47,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:47,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:47,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:20:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:47,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:20:47,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:47,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:47,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:47,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852723160] [2023-11-12 02:20:47,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:47,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687413735] [2023-11-12 02:20:47,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687413735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:47,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:47,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:20:47,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647137117] [2023-11-12 02:20:47,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:47,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:20:47,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:47,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:20:47,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:47,701 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-12 02:20:47,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:47,851 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2023-11-12 02:20:47,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:20:47,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-12 02:20:47,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:47,856 INFO L225 Difference]: With dead ends: 96 [2023-11-12 02:20:47,856 INFO L226 Difference]: Without dead ends: 94 [2023-11-12 02:20:47,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:47,859 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 44 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:47,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 56 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:47,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-12 02:20:47,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 77. [2023-11-12 02:20:47,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 59 states have (on average 1.7457627118644068) internal successors, (103), 76 states have internal predecessors, (103), 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) [2023-11-12 02:20:47,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 103 transitions. [2023-11-12 02:20:47,880 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 103 transitions. Word has length 6 [2023-11-12 02:20:47,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:47,880 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 103 transitions. [2023-11-12 02:20:47,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-12 02:20:47,881 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 103 transitions. [2023-11-12 02:20:47,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 02:20:47,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:47,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:20:47,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:48,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:48,087 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:48,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:48,088 INFO L85 PathProgramCache]: Analyzing trace with hash 889698526, now seen corresponding path program 1 times [2023-11-12 02:20:48,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:48,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819752613] [2023-11-12 02:20:48,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:48,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:48,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:48,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231329100] [2023-11-12 02:20:48,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:48,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:48,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:48,101 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:48,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:20:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:48,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:20:48,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:48,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:48,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:48,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:48,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819752613] [2023-11-12 02:20:48,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:48,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231329100] [2023-11-12 02:20:48,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231329100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:48,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:48,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:20:48,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77144375] [2023-11-12 02:20:48,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:48,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:20:48,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:48,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:20:48,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:48,180 INFO L87 Difference]: Start difference. First operand 77 states and 103 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-12 02:20:48,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:48,238 INFO L93 Difference]: Finished difference Result 77 states and 103 transitions. [2023-11-12 02:20:48,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:20:48,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-12 02:20:48,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:48,240 INFO L225 Difference]: With dead ends: 77 [2023-11-12 02:20:48,240 INFO L226 Difference]: Without dead ends: 75 [2023-11-12 02:20:48,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:48,242 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 43 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:48,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 26 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:20:48,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-12 02:20:48,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-12 02:20:48,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 59 states have (on average 1.6779661016949152) internal successors, (99), 74 states have internal predecessors, (99), 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) [2023-11-12 02:20:48,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 99 transitions. [2023-11-12 02:20:48,255 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 99 transitions. Word has length 6 [2023-11-12 02:20:48,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:48,255 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 99 transitions. [2023-11-12 02:20:48,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-12 02:20:48,256 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2023-11-12 02:20:48,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 02:20:48,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:48,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:20:48,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:48,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:48,462 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:48,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:48,463 INFO L85 PathProgramCache]: Analyzing trace with hash 889698573, now seen corresponding path program 1 times [2023-11-12 02:20:48,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:48,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33380994] [2023-11-12 02:20:48,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:48,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:48,473 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:48,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1674466024] [2023-11-12 02:20:48,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:48,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:48,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:48,478 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:48,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:20:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:48,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:20:48,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:48,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:48,599 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:48,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:48,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33380994] [2023-11-12 02:20:48,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:48,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674466024] [2023-11-12 02:20:48,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674466024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:48,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:48,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:20:48,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731385599] [2023-11-12 02:20:48,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:48,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:20:48,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:48,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:20:48,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:20:48,611 INFO L87 Difference]: Start difference. First operand 75 states and 99 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-12 02:20:48,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:48,703 INFO L93 Difference]: Finished difference Result 75 states and 99 transitions. [2023-11-12 02:20:48,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:20:48,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2023-11-12 02:20:48,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:48,705 INFO L225 Difference]: With dead ends: 75 [2023-11-12 02:20:48,705 INFO L226 Difference]: Without dead ends: 73 [2023-11-12 02:20:48,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:20:48,707 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 39 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:48,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 18 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:48,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-12 02:20:48,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-11-12 02:20:48,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 59 states have (on average 1.6101694915254237) internal successors, (95), 72 states have internal predecessors, (95), 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) [2023-11-12 02:20:48,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 95 transitions. [2023-11-12 02:20:48,719 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 95 transitions. Word has length 6 [2023-11-12 02:20:48,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:48,719 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 95 transitions. [2023-11-12 02:20:48,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-12 02:20:48,720 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 95 transitions. [2023-11-12 02:20:48,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 02:20:48,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:48,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:48,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-12 02:20:48,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:48,926 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:48,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:48,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1810850608, now seen corresponding path program 1 times [2023-11-12 02:20:48,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:48,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204860404] [2023-11-12 02:20:48,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:48,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:48,936 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:48,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1544651527] [2023-11-12 02:20:48,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:48,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:48,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:48,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:48,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:20:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:48,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:20:49,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:49,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:49,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:49,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:49,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204860404] [2023-11-12 02:20:49,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:49,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544651527] [2023-11-12 02:20:49,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544651527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:49,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:49,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:20:49,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069608591] [2023-11-12 02:20:49,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:49,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:20:49,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:49,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:20:49,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:49,030 INFO L87 Difference]: Start difference. First operand 73 states and 95 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:20:49,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:49,140 INFO L93 Difference]: Finished difference Result 142 states and 185 transitions. [2023-11-12 02:20:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:20:49,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 02:20:49,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:49,146 INFO L225 Difference]: With dead ends: 142 [2023-11-12 02:20:49,147 INFO L226 Difference]: Without dead ends: 140 [2023-11-12 02:20:49,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:49,152 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 38 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:49,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 48 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:49,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-12 02:20:49,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 117. [2023-11-12 02:20:49,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 103 states have (on average 1.6213592233009708) internal successors, (167), 116 states have internal predecessors, (167), 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) [2023-11-12 02:20:49,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 167 transitions. [2023-11-12 02:20:49,192 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 167 transitions. Word has length 7 [2023-11-12 02:20:49,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:49,193 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 167 transitions. [2023-11-12 02:20:49,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:20:49,193 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 167 transitions. [2023-11-12 02:20:49,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 02:20:49,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:49,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:49,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:49,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:49,395 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:49,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:49,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1810852050, now seen corresponding path program 1 times [2023-11-12 02:20:49,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:49,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860001704] [2023-11-12 02:20:49,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:49,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:49,404 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:49,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912501475] [2023-11-12 02:20:49,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:49,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:49,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:49,405 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:49,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:20:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:49,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:20:49,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:49,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:49,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:49,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:49,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860001704] [2023-11-12 02:20:49,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:49,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912501475] [2023-11-12 02:20:49,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912501475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:49,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:49,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:20:49,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070398046] [2023-11-12 02:20:49,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:49,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:20:49,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:49,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:20:49,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:20:49,494 INFO L87 Difference]: Start difference. First operand 117 states and 167 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:20:49,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:49,604 INFO L93 Difference]: Finished difference Result 144 states and 172 transitions. [2023-11-12 02:20:49,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:20:49,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 02:20:49,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:49,606 INFO L225 Difference]: With dead ends: 144 [2023-11-12 02:20:49,607 INFO L226 Difference]: Without dead ends: 142 [2023-11-12 02:20:49,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:20:49,608 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 107 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:49,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 59 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:49,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-12 02:20:49,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 117. [2023-11-12 02:20:49,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 103 states have (on average 1.6019417475728155) internal successors, (165), 116 states have internal predecessors, (165), 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) [2023-11-12 02:20:49,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 165 transitions. [2023-11-12 02:20:49,624 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 165 transitions. Word has length 7 [2023-11-12 02:20:49,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:49,624 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 165 transitions. [2023-11-12 02:20:49,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:20:49,624 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 165 transitions. [2023-11-12 02:20:49,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 02:20:49,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:49,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:49,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:49,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:49,858 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:49,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:49,859 INFO L85 PathProgramCache]: Analyzing trace with hash 301838767, now seen corresponding path program 1 times [2023-11-12 02:20:49,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:49,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084308220] [2023-11-12 02:20:49,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:49,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:49,867 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:49,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870339545] [2023-11-12 02:20:49,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:49,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:49,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:49,869 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:49,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:20:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:49,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:20:49,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:50,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:50,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:50,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:50,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084308220] [2023-11-12 02:20:50,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:50,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870339545] [2023-11-12 02:20:50,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870339545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:50,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:50,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:20:50,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076256462] [2023-11-12 02:20:50,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:50,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:20:50,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:50,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:20:50,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:20:50,004 INFO L87 Difference]: Start difference. First operand 117 states and 165 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2023-11-12 02:20:50,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:50,092 INFO L93 Difference]: Finished difference Result 117 states and 165 transitions. [2023-11-12 02:20:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:20:50,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 8 [2023-11-12 02:20:50,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:50,095 INFO L225 Difference]: With dead ends: 117 [2023-11-12 02:20:50,096 INFO L226 Difference]: Without dead ends: 113 [2023-11-12 02:20:50,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:20:50,097 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 66 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:50,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 6 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:50,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-12 02:20:50,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-11-12 02:20:50,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 103 states have (on average 1.4466019417475728) internal successors, (149), 112 states have internal predecessors, (149), 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) [2023-11-12 02:20:50,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 149 transitions. [2023-11-12 02:20:50,110 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 149 transitions. Word has length 8 [2023-11-12 02:20:50,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:50,111 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 149 transitions. [2023-11-12 02:20:50,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2023-11-12 02:20:50,111 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 149 transitions. [2023-11-12 02:20:50,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 02:20:50,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:50,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:50,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:50,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-12 02:20:50,326 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:50,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:50,327 INFO L85 PathProgramCache]: Analyzing trace with hash 767067252, now seen corresponding path program 1 times [2023-11-12 02:20:50,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:50,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724711771] [2023-11-12 02:20:50,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:50,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:50,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:50,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176696038] [2023-11-12 02:20:50,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:50,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:50,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:50,337 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:50,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:20:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:50,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:20:50,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:50,490 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:50,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:50,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724711771] [2023-11-12 02:20:50,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:50,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176696038] [2023-11-12 02:20:50,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176696038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:50,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:50,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:20:50,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896540910] [2023-11-12 02:20:50,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:50,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:20:50,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:50,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:20:50,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:20:50,499 INFO L87 Difference]: Start difference. First operand 113 states and 149 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2023-11-12 02:20:50,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:50,767 INFO L93 Difference]: Finished difference Result 154 states and 180 transitions. [2023-11-12 02:20:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:20:50,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2023-11-12 02:20:50,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:50,769 INFO L225 Difference]: With dead ends: 154 [2023-11-12 02:20:50,769 INFO L226 Difference]: Without dead ends: 150 [2023-11-12 02:20:50,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:20:50,771 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 83 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:50,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 71 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:20:50,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-12 02:20:50,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 129. [2023-11-12 02:20:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 119 states have (on average 1.403361344537815) internal successors, (167), 128 states have internal predecessors, (167), 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) [2023-11-12 02:20:50,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 167 transitions. [2023-11-12 02:20:50,793 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 167 transitions. Word has length 9 [2023-11-12 02:20:50,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:50,794 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 167 transitions. [2023-11-12 02:20:50,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2023-11-12 02:20:50,794 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 167 transitions. [2023-11-12 02:20:50,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 02:20:50,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:50,796 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-12 02:20:50,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:51,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-12 02:20:51,002 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:51,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:51,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1237833940, now seen corresponding path program 1 times [2023-11-12 02:20:51,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:51,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005073682] [2023-11-12 02:20:51,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:51,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:51,012 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:51,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874005149] [2023-11-12 02:20:51,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:51,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:51,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:51,017 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:51,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:20:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:51,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:20:51,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:51,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:20:51,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:51,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:51,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005073682] [2023-11-12 02:20:51,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:51,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874005149] [2023-11-12 02:20:51,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874005149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:51,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:51,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:20:51,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523313702] [2023-11-12 02:20:51,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:51,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:20:51,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:51,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:20:51,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:20:51,140 INFO L87 Difference]: Start difference. First operand 129 states and 167 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-12 02:20:51,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:51,232 INFO L93 Difference]: Finished difference Result 235 states and 293 transitions. [2023-11-12 02:20:51,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:20:51,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-12 02:20:51,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:51,234 INFO L225 Difference]: With dead ends: 235 [2023-11-12 02:20:51,234 INFO L226 Difference]: Without dead ends: 136 [2023-11-12 02:20:51,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:20:51,239 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 72 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:51,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 41 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:51,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-12 02:20:51,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 129. [2023-11-12 02:20:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 128 states have internal predecessors, (163), 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) [2023-11-12 02:20:51,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 163 transitions. [2023-11-12 02:20:51,259 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 163 transitions. Word has length 10 [2023-11-12 02:20:51,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:51,260 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 163 transitions. [2023-11-12 02:20:51,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-12 02:20:51,260 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 163 transitions. [2023-11-12 02:20:51,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:20:51,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:51,263 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-11-12 02:20:51,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:51,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:51,470 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:51,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:51,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1380050233, now seen corresponding path program 1 times [2023-11-12 02:20:51,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:51,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698973109] [2023-11-12 02:20:51,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:51,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:51,478 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:51,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135058982] [2023-11-12 02:20:51,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:51,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:51,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:51,481 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:51,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-12 02:20:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:51,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:20:51,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:51,560 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:20:51,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:51,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:51,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698973109] [2023-11-12 02:20:51,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:51,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135058982] [2023-11-12 02:20:51,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135058982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:51,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:51,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:20:51,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456080523] [2023-11-12 02:20:51,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:51,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:20:51,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:51,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:20:51,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:20:51,564 INFO L87 Difference]: Start difference. First operand 129 states and 163 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:20:51,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:51,638 INFO L93 Difference]: Finished difference Result 293 states and 376 transitions. [2023-11-12 02:20:51,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:20:51,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-12 02:20:51,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:51,640 INFO L225 Difference]: With dead ends: 293 [2023-11-12 02:20:51,640 INFO L226 Difference]: Without dead ends: 182 [2023-11-12 02:20:51,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:20:51,645 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 60 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:51,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 49 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:51,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-12 02:20:51,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 177. [2023-11-12 02:20:51,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 167 states have (on average 1.3233532934131738) internal successors, (221), 176 states have internal predecessors, (221), 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) [2023-11-12 02:20:51,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 221 transitions. [2023-11-12 02:20:51,662 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 221 transitions. Word has length 11 [2023-11-12 02:20:51,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:51,662 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 221 transitions. [2023-11-12 02:20:51,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:20:51,662 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 221 transitions. [2023-11-12 02:20:51,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 02:20:51,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:51,666 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:51,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:51,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:20:51,873 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:51,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1594193833, now seen corresponding path program 1 times [2023-11-12 02:20:51,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:51,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781276898] [2023-11-12 02:20:51,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:51,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:51,886 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:51,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899424604] [2023-11-12 02:20:51,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:51,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:51,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:51,888 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:51,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-12 02:20:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:51,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:20:51,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:52,087 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:52,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:52,160 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:52,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:52,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781276898] [2023-11-12 02:20:52,161 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:52,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899424604] [2023-11-12 02:20:52,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899424604] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:52,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:52,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-12 02:20:52,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018867372] [2023-11-12 02:20:52,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:52,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:20:52,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:52,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:20:52,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:20:52,166 INFO L87 Difference]: Start difference. First operand 177 states and 221 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 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) [2023-11-12 02:20:52,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:52,790 INFO L93 Difference]: Finished difference Result 422 states and 508 transitions. [2023-11-12 02:20:52,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-12 02:20:52,791 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-12 02:20:52,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:52,793 INFO L225 Difference]: With dead ends: 422 [2023-11-12 02:20:52,794 INFO L226 Difference]: Without dead ends: 414 [2023-11-12 02:20:52,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=260, Unknown=0, NotChecked=0, Total=420 [2023-11-12 02:20:52,795 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 594 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:52,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 47 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:20:52,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2023-11-12 02:20:52,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 329. [2023-11-12 02:20:52,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 319 states have (on average 1.2789968652037618) internal successors, (408), 328 states have internal predecessors, (408), 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) [2023-11-12 02:20:52,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 408 transitions. [2023-11-12 02:20:52,820 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 408 transitions. Word has length 16 [2023-11-12 02:20:52,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:52,821 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 408 transitions. [2023-11-12 02:20:52,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 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) [2023-11-12 02:20:52,821 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 408 transitions. [2023-11-12 02:20:52,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:20:52,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:52,822 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-12 02:20:52,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:53,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-12 02:20:53,035 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:53,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:53,035 INFO L85 PathProgramCache]: Analyzing trace with hash 902056423, now seen corresponding path program 1 times [2023-11-12 02:20:53,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:53,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40663776] [2023-11-12 02:20:53,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:53,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:53,045 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:53,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542094582] [2023-11-12 02:20:53,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:53,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:53,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:53,047 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:53,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-12 02:20:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:53,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:20:53,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:53,186 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:20:53,186 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:53,229 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:20:53,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:53,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40663776] [2023-11-12 02:20:53,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:53,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542094582] [2023-11-12 02:20:53,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542094582] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:53,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:53,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-12 02:20:53,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239771585] [2023-11-12 02:20:53,231 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:53,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:20:53,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:53,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:20:53,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:20:53,233 INFO L87 Difference]: Start difference. First operand 329 states and 408 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 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) [2023-11-12 02:20:53,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:53,409 INFO L93 Difference]: Finished difference Result 850 states and 1088 transitions. [2023-11-12 02:20:53,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:20:53,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-12 02:20:53,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:53,413 INFO L225 Difference]: With dead ends: 850 [2023-11-12 02:20:53,414 INFO L226 Difference]: Without dead ends: 546 [2023-11-12 02:20:53,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:20:53,416 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 199 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:53,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 62 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:53,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2023-11-12 02:20:53,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 531. [2023-11-12 02:20:53,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 521 states have (on average 1.255278310940499) internal successors, (654), 530 states have internal predecessors, (654), 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) [2023-11-12 02:20:53,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 654 transitions. [2023-11-12 02:20:53,455 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 654 transitions. Word has length 25 [2023-11-12 02:20:53,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:53,455 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 654 transitions. [2023-11-12 02:20:53,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 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) [2023-11-12 02:20:53,455 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 654 transitions. [2023-11-12 02:20:53,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:20:53,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:53,456 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2023-11-12 02:20:53,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:53,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 02:20:53,663 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:53,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:53,663 INFO L85 PathProgramCache]: Analyzing trace with hash -2125524362, now seen corresponding path program 1 times [2023-11-12 02:20:53,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:53,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145437050] [2023-11-12 02:20:53,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:53,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:53,673 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:53,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009458396] [2023-11-12 02:20:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:53,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:53,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:53,676 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:53,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-12 02:20:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:53,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:20:53,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:53,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:53,866 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:53,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:53,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145437050] [2023-11-12 02:20:53,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:53,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009458396] [2023-11-12 02:20:53,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009458396] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:53,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:53,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-12 02:20:53,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020537299] [2023-11-12 02:20:53,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:53,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:20:53,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:53,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:20:53,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:20:53,871 INFO L87 Difference]: Start difference. First operand 531 states and 654 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 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) [2023-11-12 02:20:54,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:54,100 INFO L93 Difference]: Finished difference Result 986 states and 1241 transitions. [2023-11-12 02:20:54,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:20:54,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-12 02:20:54,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:54,107 INFO L225 Difference]: With dead ends: 986 [2023-11-12 02:20:54,107 INFO L226 Difference]: Without dead ends: 984 [2023-11-12 02:20:54,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:20:54,109 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 170 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:54,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 143 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:20:54,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2023-11-12 02:20:54,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 853. [2023-11-12 02:20:54,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 843 states have (on average 1.2455516014234875) internal successors, (1050), 852 states have internal predecessors, (1050), 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) [2023-11-12 02:20:54,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1050 transitions. [2023-11-12 02:20:54,160 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1050 transitions. Word has length 25 [2023-11-12 02:20:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:54,160 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 1050 transitions. [2023-11-12 02:20:54,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 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) [2023-11-12 02:20:54,161 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1050 transitions. [2023-11-12 02:20:54,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-12 02:20:54,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:54,162 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1] [2023-11-12 02:20:54,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:54,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-12 02:20:54,369 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:54,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:54,369 INFO L85 PathProgramCache]: Analyzing trace with hash -114180298, now seen corresponding path program 2 times [2023-11-12 02:20:54,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:54,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341254388] [2023-11-12 02:20:54,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:54,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:54,390 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:54,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706629341] [2023-11-12 02:20:54,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:20:54,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:54,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:54,392 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:54,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-12 02:20:54,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-12 02:20:54,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:20:54,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:20:54,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-12 02:20:54,556 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:54,657 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-12 02:20:54,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:54,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341254388] [2023-11-12 02:20:54,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:54,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706629341] [2023-11-12 02:20:54,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706629341] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:54,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:54,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-12 02:20:54,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126063136] [2023-11-12 02:20:54,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:54,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:20:54,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:54,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:20:54,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:20:54,662 INFO L87 Difference]: Start difference. First operand 853 states and 1050 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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) [2023-11-12 02:20:54,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:54,750 INFO L93 Difference]: Finished difference Result 854 states and 1051 transitions. [2023-11-12 02:20:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:20:54,751 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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 53 [2023-11-12 02:20:54,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:54,756 INFO L225 Difference]: With dead ends: 854 [2023-11-12 02:20:54,757 INFO L226 Difference]: Without dead ends: 852 [2023-11-12 02:20:54,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:20:54,758 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 106 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:54,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 38 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:20:54,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2023-11-12 02:20:54,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 529. [2023-11-12 02:20:54,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 521 states have (on average 1.2015355086372361) internal successors, (626), 528 states have internal predecessors, (626), 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) [2023-11-12 02:20:54,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 626 transitions. [2023-11-12 02:20:54,798 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 626 transitions. Word has length 53 [2023-11-12 02:20:54,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:54,798 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 626 transitions. [2023-11-12 02:20:54,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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) [2023-11-12 02:20:54,799 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 626 transitions. [2023-11-12 02:20:54,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-12 02:20:54,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:54,800 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:54,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-12 02:20:55,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-12 02:20:55,005 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:55,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:55,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1000260707, now seen corresponding path program 1 times [2023-11-12 02:20:55,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:55,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202244187] [2023-11-12 02:20:55,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:55,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:55,019 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:55,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [523242966] [2023-11-12 02:20:55,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:55,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:55,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:55,021 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:55,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-12 02:20:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:55,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:20:55,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:55,272 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 80 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-12 02:20:55,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:55,387 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 80 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-12 02:20:55,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:55,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202244187] [2023-11-12 02:20:55,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:55,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523242966] [2023-11-12 02:20:55,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523242966] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:55,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:55,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-12 02:20:55,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400791736] [2023-11-12 02:20:55,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:55,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 02:20:55,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:55,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:20:55,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:20:55,391 INFO L87 Difference]: Start difference. First operand 529 states and 626 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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) [2023-11-12 02:20:55,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:55,752 INFO L93 Difference]: Finished difference Result 1734 states and 2094 transitions. [2023-11-12 02:20:55,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:20:55,752 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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 55 [2023-11-12 02:20:55,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:55,759 INFO L225 Difference]: With dead ends: 1734 [2023-11-12 02:20:55,760 INFO L226 Difference]: Without dead ends: 1238 [2023-11-12 02:20:55,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=191, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:20:55,762 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 469 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:55,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 134 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:20:55,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2023-11-12 02:20:55,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1201. [2023-11-12 02:20:55,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1193 states have (on average 1.1886001676445934) internal successors, (1418), 1200 states have internal predecessors, (1418), 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) [2023-11-12 02:20:55,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1418 transitions. [2023-11-12 02:20:55,832 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1418 transitions. Word has length 55 [2023-11-12 02:20:55,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:55,833 INFO L495 AbstractCegarLoop]: Abstraction has 1201 states and 1418 transitions. [2023-11-12 02:20:55,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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) [2023-11-12 02:20:55,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1418 transitions. [2023-11-12 02:20:55,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-12 02:20:55,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:55,835 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:55,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:56,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-12 02:20:56,049 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:56,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:56,050 INFO L85 PathProgramCache]: Analyzing trace with hash 75467453, now seen corresponding path program 2 times [2023-11-12 02:20:56,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:56,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619733195] [2023-11-12 02:20:56,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:56,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:56,081 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:56,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265615177] [2023-11-12 02:20:56,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:20:56,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:56,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:56,083 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:56,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-12 02:20:56,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-12 02:20:56,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:20:56,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:20:56,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:56,561 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 153 proven. 48 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2023-11-12 02:20:56,562 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:56,789 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2023-11-12 02:20:56,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:56,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619733195] [2023-11-12 02:20:56,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:56,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265615177] [2023-11-12 02:20:56,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265615177] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:56,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:56,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-12 02:20:56,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273122478] [2023-11-12 02:20:56,790 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:56,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:20:56,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:56,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:20:56,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:20:56,792 INFO L87 Difference]: Start difference. First operand 1201 states and 1418 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 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) [2023-11-12 02:20:57,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:57,249 INFO L93 Difference]: Finished difference Result 1687 states and 1960 transitions. [2023-11-12 02:20:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:20:57,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 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 97 [2023-11-12 02:20:57,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:57,260 INFO L225 Difference]: With dead ends: 1687 [2023-11-12 02:20:57,260 INFO L226 Difference]: Without dead ends: 1681 [2023-11-12 02:20:57,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:20:57,262 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 118 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:57,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 36 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:20:57,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2023-11-12 02:20:57,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1344. [2023-11-12 02:20:57,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1336 states have (on average 1.1429640718562875) internal successors, (1527), 1343 states have internal predecessors, (1527), 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) [2023-11-12 02:20:57,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1527 transitions. [2023-11-12 02:20:57,406 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1527 transitions. Word has length 97 [2023-11-12 02:20:57,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:57,408 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 1527 transitions. [2023-11-12 02:20:57,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 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) [2023-11-12 02:20:57,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1527 transitions. [2023-11-12 02:20:57,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-12 02:20:57,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:57,415 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:57,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:57,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-12 02:20:57,621 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:57,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:57,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1274936571, now seen corresponding path program 1 times [2023-11-12 02:20:57,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:57,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949966790] [2023-11-12 02:20:57,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:57,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:57,648 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:57,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482364911] [2023-11-12 02:20:57,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:57,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:57,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:57,650 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:57,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-12 02:20:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:57,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:20:57,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:58,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1442 backedges. 756 proven. 325 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2023-11-12 02:20:58,183 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:58,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1442 backedges. 756 proven. 325 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2023-11-12 02:20:58,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:58,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949966790] [2023-11-12 02:20:58,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:58,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482364911] [2023-11-12 02:20:58,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482364911] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:20:58,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:20:58,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-12 02:20:58,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059457521] [2023-11-12 02:20:58,544 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:58,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-12 02:20:58,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:58,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-12 02:20:58,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=347, Unknown=0, NotChecked=0, Total=650 [2023-11-12 02:20:58,547 INFO L87 Difference]: Start difference. First operand 1344 states and 1527 transitions. Second operand has 26 states, 26 states have (on average 6.346153846153846) internal successors, (165), 26 states have internal predecessors, (165), 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) [2023-11-12 02:20:59,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:59,511 INFO L93 Difference]: Finished difference Result 4265 states and 4918 transitions. [2023-11-12 02:20:59,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-12 02:20:59,511 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.346153846153846) internal successors, (165), 26 states have internal predecessors, (165), 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 159 [2023-11-12 02:20:59,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:59,529 INFO L225 Difference]: With dead ends: 4265 [2023-11-12 02:20:59,529 INFO L226 Difference]: Without dead ends: 2928 [2023-11-12 02:20:59,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=589, Invalid=743, Unknown=0, NotChecked=0, Total=1332 [2023-11-12 02:20:59,534 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1265 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:59,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 245 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:20:59,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2023-11-12 02:20:59,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 2844. [2023-11-12 02:20:59,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2844 states, 2836 states have (on average 1.135049365303244) internal successors, (3219), 2843 states have internal predecessors, (3219), 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) [2023-11-12 02:20:59,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 3219 transitions. [2023-11-12 02:20:59,748 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 3219 transitions. Word has length 159 [2023-11-12 02:20:59,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:59,749 INFO L495 AbstractCegarLoop]: Abstraction has 2844 states and 3219 transitions. [2023-11-12 02:20:59,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.346153846153846) internal successors, (165), 26 states have internal predecessors, (165), 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) [2023-11-12 02:20:59,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 3219 transitions. [2023-11-12 02:20:59,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-11-12 02:20:59,755 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:59,756 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:59,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:59,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-12 02:20:59,962 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:20:59,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:59,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1612342917, now seen corresponding path program 2 times [2023-11-12 02:20:59,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:59,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647563338] [2023-11-12 02:20:59,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:59,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:00,015 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:00,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169278484] [2023-11-12 02:21:00,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:21:00,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:00,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:00,017 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:00,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-12 02:21:00,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-12 02:21:00,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:21:00,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:21:00,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6854 backedges. 3439 proven. 134 refuted. 0 times theorem prover too weak. 3281 trivial. 0 not checked. [2023-11-12 02:21:01,098 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:21:01,633 INFO L134 CoverageAnalysis]: Checked inductivity of 6854 backedges. 0 proven. 3573 refuted. 0 times theorem prover too weak. 3281 trivial. 0 not checked. [2023-11-12 02:21:01,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:01,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647563338] [2023-11-12 02:21:01,633 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:21:01,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169278484] [2023-11-12 02:21:01,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169278484] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:21:01,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:21:01,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-12 02:21:01,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813638008] [2023-11-12 02:21:01,637 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:21:01,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:21:01,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:01,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:21:01,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:21:01,640 INFO L87 Difference]: Start difference. First operand 2844 states and 3219 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 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) [2023-11-12 02:21:01,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:01,901 INFO L93 Difference]: Finished difference Result 3254 states and 3721 transitions. [2023-11-12 02:21:01,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:21:01,902 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 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 327 [2023-11-12 02:21:01,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:01,916 INFO L225 Difference]: With dead ends: 3254 [2023-11-12 02:21:01,916 INFO L226 Difference]: Without dead ends: 2226 [2023-11-12 02:21:01,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:21:01,919 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 74 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:01,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 13 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:21:01,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2023-11-12 02:21:02,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 1133. [2023-11-12 02:21:02,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 1131 states have (on average 1.070733863837312) internal successors, (1211), 1132 states have internal predecessors, (1211), 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) [2023-11-12 02:21:02,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1211 transitions. [2023-11-12 02:21:02,024 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1211 transitions. Word has length 327 [2023-11-12 02:21:02,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:02,025 INFO L495 AbstractCegarLoop]: Abstraction has 1133 states and 1211 transitions. [2023-11-12 02:21:02,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 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) [2023-11-12 02:21:02,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1211 transitions. [2023-11-12 02:21:02,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2023-11-12 02:21:02,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:02,032 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 45, 44, 44, 44, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-12 02:21:02,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:02,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-12 02:21:02,239 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:21:02,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:02,239 INFO L85 PathProgramCache]: Analyzing trace with hash -335127180, now seen corresponding path program 1 times [2023-11-12 02:21:02,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:02,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563519413] [2023-11-12 02:21:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:02,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:02,283 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:02,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1504109373] [2023-11-12 02:21:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:02,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:02,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:02,285 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:02,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-12 02:21:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:02,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-12 02:21:02,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6950 backedges. 3550 proven. 1639 refuted. 0 times theorem prover too weak. 1761 trivial. 0 not checked. [2023-11-12 02:21:03,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:21:04,708 INFO L134 CoverageAnalysis]: Checked inductivity of 6950 backedges. 3550 proven. 1639 refuted. 0 times theorem prover too weak. 1761 trivial. 0 not checked. [2023-11-12 02:21:04,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:04,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563519413] [2023-11-12 02:21:04,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:21:04,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504109373] [2023-11-12 02:21:04,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504109373] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:21:04,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:21:04,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-12 02:21:04,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805836187] [2023-11-12 02:21:04,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:21:04,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-12 02:21:04,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:04,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-12 02:21:04,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1179, Invalid=1271, Unknown=0, NotChecked=0, Total=2450 [2023-11-12 02:21:04,715 INFO L87 Difference]: Start difference. First operand 1133 states and 1211 transitions. Second operand has 50 states, 50 states have (on average 6.66) internal successors, (333), 50 states have internal predecessors, (333), 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) [2023-11-12 02:21:07,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:07,303 INFO L93 Difference]: Finished difference Result 3504 states and 3786 transitions. [2023-11-12 02:21:07,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-12 02:21:07,304 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 6.66) internal successors, (333), 50 states have internal predecessors, (333), 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 333 [2023-11-12 02:21:07,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:07,316 INFO L225 Difference]: With dead ends: 3504 [2023-11-12 02:21:07,316 INFO L226 Difference]: Without dead ends: 2375 [2023-11-12 02:21:07,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1081 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2329, Invalid=2927, Unknown=0, NotChecked=0, Total=5256 [2023-11-12 02:21:07,320 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3105 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:07,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3105 Valid, 307 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-12 02:21:07,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2023-11-12 02:21:07,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2285. [2023-11-12 02:21:07,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2285 states, 2283 states have (on average 1.0665790626368814) internal successors, (2435), 2284 states have internal predecessors, (2435), 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) [2023-11-12 02:21:07,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 2435 transitions. [2023-11-12 02:21:07,497 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 2435 transitions. Word has length 333 [2023-11-12 02:21:07,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:07,498 INFO L495 AbstractCegarLoop]: Abstraction has 2285 states and 2435 transitions. [2023-11-12 02:21:07,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 6.66) internal successors, (333), 50 states have internal predecessors, (333), 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) [2023-11-12 02:21:07,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 2435 transitions. [2023-11-12 02:21:07,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2023-11-12 02:21:07,516 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:07,517 INFO L195 NwaCegarLoop]: trace histogram [93, 93, 93, 93, 92, 92, 92, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-12 02:21:07,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:07,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:07,728 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:21:07,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:07,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1773971852, now seen corresponding path program 2 times [2023-11-12 02:21:07,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:07,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460553552] [2023-11-12 02:21:07,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:07,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:07,810 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:07,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432858316] [2023-11-12 02:21:07,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:21:07,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:07,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:07,813 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:07,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-12 02:21:08,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-12 02:21:08,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:21:08,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:21:08,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 29966 backedges. 0 proven. 466 refuted. 0 times theorem prover too weak. 29500 trivial. 0 not checked. [2023-11-12 02:21:09,040 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:21:10,021 INFO L134 CoverageAnalysis]: Checked inductivity of 29966 backedges. 0 proven. 466 refuted. 0 times theorem prover too weak. 29500 trivial. 0 not checked. [2023-11-12 02:21:10,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:10,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460553552] [2023-11-12 02:21:10,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:21:10,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432858316] [2023-11-12 02:21:10,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432858316] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:21:10,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:21:10,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-12 02:21:10,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143185319] [2023-11-12 02:21:10,023 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:21:10,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:21:10,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:10,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:21:10,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:21:10,025 INFO L87 Difference]: Start difference. First operand 2285 states and 2435 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 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) [2023-11-12 02:21:10,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:10,409 INFO L93 Difference]: Finished difference Result 3711 states and 3961 transitions. [2023-11-12 02:21:10,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:21:10,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 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 669 [2023-11-12 02:21:10,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:10,429 INFO L225 Difference]: With dead ends: 3711 [2023-11-12 02:21:10,429 INFO L226 Difference]: Without dead ends: 3709 [2023-11-12 02:21:10,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1341 GetRequests, 1330 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:21:10,432 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 217 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:10,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 13 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:21:10,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2023-11-12 02:21:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 2603. [2023-11-12 02:21:10,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2601 states have (on average 1.041522491349481) internal successors, (2709), 2602 states have internal predecessors, (2709), 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) [2023-11-12 02:21:10,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 2709 transitions. [2023-11-12 02:21:10,730 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 2709 transitions. Word has length 669 [2023-11-12 02:21:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:10,732 INFO L495 AbstractCegarLoop]: Abstraction has 2603 states and 2709 transitions. [2023-11-12 02:21:10,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 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) [2023-11-12 02:21:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 2709 transitions. [2023-11-12 02:21:10,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2023-11-12 02:21:10,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:10,760 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 49, 48, 48, 48, 48, 48, 46, 46, 46, 46, 46, 46, 46, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:10,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-12 02:21:10,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:10,966 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:21:10,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:10,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1655957948, now seen corresponding path program 1 times [2023-11-12 02:21:10,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:10,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977222055] [2023-11-12 02:21:10,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:10,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:11,070 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:11,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [154080980] [2023-11-12 02:21:11,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:11,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:11,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:11,072 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:11,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-12 02:21:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:11,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-12 02:21:11,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:13,907 INFO L134 CoverageAnalysis]: Checked inductivity of 17735 backedges. 2 proven. 7291 refuted. 0 times theorem prover too weak. 10442 trivial. 0 not checked. [2023-11-12 02:21:13,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:21:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 17735 backedges. 2 proven. 7291 refuted. 0 times theorem prover too weak. 10442 trivial. 0 not checked. [2023-11-12 02:21:17,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:17,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977222055] [2023-11-12 02:21:17,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:21:17,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154080980] [2023-11-12 02:21:17,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154080980] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:21:17,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:21:17,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 98 [2023-11-12 02:21:17,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380991749] [2023-11-12 02:21:17,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:21:17,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2023-11-12 02:21:17,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:17,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2023-11-12 02:21:17,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4659, Invalid=4847, Unknown=0, NotChecked=0, Total=9506 [2023-11-12 02:21:17,129 INFO L87 Difference]: Start difference. First operand 2603 states and 2709 transitions. Second operand has 98 states, 98 states have (on average 6.887755102040816) internal successors, (675), 98 states have internal predecessors, (675), 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) [2023-11-12 02:21:26,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:26,152 INFO L93 Difference]: Finished difference Result 8028 states and 8486 transitions. [2023-11-12 02:21:26,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-11-12 02:21:26,153 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 6.887755102040816) internal successors, (675), 98 states have internal predecessors, (675), 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 777 [2023-11-12 02:21:26,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:26,175 INFO L225 Difference]: With dead ends: 8028 [2023-11-12 02:21:26,175 INFO L226 Difference]: Without dead ends: 5429 [2023-11-12 02:21:26,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1599 GetRequests, 1456 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4465 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=9265, Invalid=11615, Unknown=0, NotChecked=0, Total=20880 [2023-11-12 02:21:26,186 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 4586 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4586 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:26,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4586 Valid, 622 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-12 02:21:26,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2023-11-12 02:21:26,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 5243. [2023-11-12 02:21:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5241 states have (on average 1.0389238694905552) internal successors, (5445), 5242 states have internal predecessors, (5445), 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) [2023-11-12 02:21:26,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 5445 transitions. [2023-11-12 02:21:26,609 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 5445 transitions. Word has length 777 [2023-11-12 02:21:26,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:26,610 INFO L495 AbstractCegarLoop]: Abstraction has 5243 states and 5445 transitions. [2023-11-12 02:21:26,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 6.887755102040816) internal successors, (675), 98 states have internal predecessors, (675), 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) [2023-11-12 02:21:26,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 5445 transitions. [2023-11-12 02:21:26,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1546 [2023-11-12 02:21:26,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:26,635 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 97, 96, 96, 96, 96, 96, 94, 94, 94, 94, 94, 94, 94, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:26,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:26,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:26,843 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 02:21:26,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:26,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1452499388, now seen corresponding path program 2 times [2023-11-12 02:21:26,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:26,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663280670] [2023-11-12 02:21:26,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:26,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:26,972 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:26,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [863811873] [2023-11-12 02:21:26,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:21:26,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:26,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:26,981 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:27,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-12 02:21:27,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-12 02:21:27,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:21:27,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:21:27,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:30,796 INFO L134 CoverageAnalysis]: Checked inductivity of 72311 backedges. 1789 proven. 384 refuted. 0 times theorem prover too weak. 70138 trivial. 0 not checked. [2023-11-12 02:21:30,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:21:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 72311 backedges. 0 proven. 2173 refuted. 0 times theorem prover too weak. 70138 trivial. 0 not checked. [2023-11-12 02:21:33,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:33,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663280670] [2023-11-12 02:21:33,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:21:33,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863811873] [2023-11-12 02:21:33,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863811873] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:21:33,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:21:33,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-12 02:21:33,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072217428] [2023-11-12 02:21:33,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:21:33,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:21:33,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:33,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:21:33,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:21:33,172 INFO L87 Difference]: Start difference. First operand 5243 states and 5445 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 10 states have internal predecessors, (95), 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) [2023-11-12 02:21:33,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:33,695 INFO L93 Difference]: Finished difference Result 6097 states and 6395 transitions. [2023-11-12 02:21:33,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:21:33,695 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 10 states have internal predecessors, (95), 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 1545 [2023-11-12 02:21:33,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:33,699 INFO L225 Difference]: With dead ends: 6097 [2023-11-12 02:21:33,699 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:21:33,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3095 GetRequests, 3080 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=169, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:21:33,706 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 138 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:33,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 14 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:21:33,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:21:33,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:21:33,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:21:33,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:21:33,708 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1545 [2023-11-12 02:21:33,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:33,709 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:21:33,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 10 states have internal predecessors, (95), 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) [2023-11-12 02:21:33,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:21:33,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:21:33,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-12 02:21:33,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-12 02:21:33,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-12 02:21:33,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-12 02:21:33,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-12 02:21:33,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-12 02:21:33,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-12 02:21:33,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-12 02:21:33,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2023-11-12 02:21:33,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2023-11-12 02:21:33,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2023-11-12 02:21:33,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2023-11-12 02:21:33,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-12 02:21:33,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-12 02:21:33,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-12 02:21:33,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-12 02:21:33,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-12 02:21:33,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-12 02:21:33,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-12 02:21:33,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-12 02:21:33,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:33,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33a67d6-41e9-4fee-b6bd-6c37f6101cbc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:33,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.