./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme --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 5cb4924cbdb465eb5009b33592f9047ad895ad10dbe627600c12529f62c9845d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:01,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:01,571 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:58:01,577 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:01,578 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:01,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:01,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:01,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:01,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:58:01,607 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:58:01,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:58:01,608 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:58:01,609 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:01,609 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:01,610 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:01,611 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:01,611 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:58:01,612 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:58:01,613 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:58:01,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:58:01,614 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:01,614 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:58:01,615 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:58:01,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:58:01,616 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:58:01,616 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:58:01,617 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:58:01,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:58:01,618 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:01,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:01,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:01,619 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:58:01,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:58:01,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:01,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:01,622 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:58:01,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:58:01,623 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:58:01,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:58:01,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:58:01,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:58:01,625 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:58:01,625 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:58:01,626 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:58:01,626 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_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cb4924cbdb465eb5009b33592f9047ad895ad10dbe627600c12529f62c9845d [2023-11-26 11:58:01,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:01,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:01,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:01,980 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:01,980 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:01,982 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c [2023-11-26 11:58:05,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:05,442 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:05,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c [2023-11-26 11:58:05,450 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/data/4b8c98af0/7819de5f6f1148cfa0995b68d85284c9/FLAG3d58b01a7 [2023-11-26 11:58:05,464 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/data/4b8c98af0/7819de5f6f1148cfa0995b68d85284c9 [2023-11-26 11:58:05,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:05,468 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:05,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:05,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:05,476 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:05,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be4ca75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05, skipping insertion in model container [2023-11-26 11:58:05,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,501 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:05,680 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:05,692 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:58:05,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:05,730 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:58:05,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05 WrapperNode [2023-11-26 11:58:05,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:05,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:05,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:58:05,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:58:05,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,773 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2023-11-26 11:58:05,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:05,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:58:05,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:58:05,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:58:05,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,795 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,810 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:58:05,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,815 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,819 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,820 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:58:05,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:58:05,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:58:05,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:58:05,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (1/1) ... [2023-11-26 11:58:05,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:05,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:05,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:05,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:58:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:58:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:58:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:58:05,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:58:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 11:58:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 11:58:06,002 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:58:06,005 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:58:06,540 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:58:06,572 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:58:06,572 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:58:06,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:06 BoogieIcfgContainer [2023-11-26 11:58:06,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:58:06,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:58:06,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:58:06,582 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:58:06,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:58:05" (1/3) ... [2023-11-26 11:58:06,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f7d28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:06, skipping insertion in model container [2023-11-26 11:58:06,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05" (2/3) ... [2023-11-26 11:58:06,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f7d28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:06, skipping insertion in model container [2023-11-26 11:58:06,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:06" (3/3) ... [2023-11-26 11:58:06,589 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound50.c [2023-11-26 11:58:06,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:58:06,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2023-11-26 11:58:06,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:58:06,685 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;@7722aeef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:58:06,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-11-26 11:58:06,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 59 states have (on average 1.9322033898305084) internal successors, (114), 109 states have internal predecessors, (114), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:58:06,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 11:58:06,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:06,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 11:58:06,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:06,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:06,705 INFO L85 PathProgramCache]: Analyzing trace with hash 179321260, now seen corresponding path program 1 times [2023-11-26 11:58:06,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:06,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950743677] [2023-11-26 11:58:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:06,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:06,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:06,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950743677] [2023-11-26 11:58:06,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950743677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:06,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:06,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:06,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981706976] [2023-11-26 11:58:06,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:06,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:58:06,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:06,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:58:06,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:58:06,943 INFO L87 Difference]: Start difference. First operand has 117 states, 59 states have (on average 1.9322033898305084) internal successors, (114), 109 states have internal predecessors, (114), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:07,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:07,021 INFO L93 Difference]: Finished difference Result 228 states and 255 transitions. [2023-11-26 11:58:07,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:58:07,023 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-26 11:58:07,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:07,037 INFO L225 Difference]: With dead ends: 228 [2023-11-26 11:58:07,037 INFO L226 Difference]: Without dead ends: 110 [2023-11-26 11:58:07,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:58:07,050 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:07,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:07,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-26 11:58:07,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2023-11-26 11:58:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 58 states have (on average 1.793103448275862) internal successors, (104), 103 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 11:58:07,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2023-11-26 11:58:07,120 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 5 [2023-11-26 11:58:07,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:07,121 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2023-11-26 11:58:07,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:07,121 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2023-11-26 11:58:07,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 11:58:07,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:07,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 11:58:07,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:58:07,123 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:07,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:07,124 INFO L85 PathProgramCache]: Analyzing trace with hash 179380837, now seen corresponding path program 1 times [2023-11-26 11:58:07,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:07,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682013168] [2023-11-26 11:58:07,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:07,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:07,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:07,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:07,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682013168] [2023-11-26 11:58:07,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682013168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:07,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:07,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:07,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133652619] [2023-11-26 11:58:07,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:07,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:07,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:07,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:07,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:07,217 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:07,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:07,458 INFO L93 Difference]: Finished difference Result 205 states and 214 transitions. [2023-11-26 11:58:07,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:07,459 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 [2023-11-26 11:58:07,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:07,466 INFO L225 Difference]: With dead ends: 205 [2023-11-26 11:58:07,467 INFO L226 Difference]: Without dead ends: 185 [2023-11-26 11:58:07,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:07,470 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 68 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:07,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 161 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:07,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-26 11:58:07,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 150. [2023-11-26 11:58:07,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 94 states have (on average 1.6170212765957446) internal successors, (152), 139 states have internal predecessors, (152), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:58:07,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 170 transitions. [2023-11-26 11:58:07,518 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 170 transitions. Word has length 5 [2023-11-26 11:58:07,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:07,519 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 170 transitions. [2023-11-26 11:58:07,519 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) [2023-11-26 11:58:07,520 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 170 transitions. [2023-11-26 11:58:07,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-26 11:58:07,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:07,522 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:07,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:58:07,523 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:07,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:07,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1083960687, now seen corresponding path program 1 times [2023-11-26 11:58:07,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:07,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524598641] [2023-11-26 11:58:07,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:07,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:07,580 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:07,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12350924] [2023-11-26 11:58:07,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:07,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:07,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:07,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:07,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:58:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:07,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:58:07,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:07,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:58:07,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:07,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:07,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524598641] [2023-11-26 11:58:07,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:07,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12350924] [2023-11-26 11:58:07,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12350924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:07,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:07,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:07,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342279665] [2023-11-26 11:58:07,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:07,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:07,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:07,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:07,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:07,738 INFO L87 Difference]: Start difference. First operand 150 states and 170 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:58:07,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:07,919 INFO L93 Difference]: Finished difference Result 189 states and 198 transitions. [2023-11-26 11:58:07,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:07,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-26 11:58:07,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:07,922 INFO L225 Difference]: With dead ends: 189 [2023-11-26 11:58:07,922 INFO L226 Difference]: Without dead ends: 181 [2023-11-26 11:58:07,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:07,924 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 53 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:07,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 147 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:07,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-26 11:58:07,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 161. [2023-11-26 11:58:07,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 104 states have (on average 1.5673076923076923) internal successors, (163), 149 states have internal predecessors, (163), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 11:58:07,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 183 transitions. [2023-11-26 11:58:07,939 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 183 transitions. Word has length 26 [2023-11-26 11:58:07,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:07,940 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 183 transitions. [2023-11-26 11:58:07,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:58:07,940 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 183 transitions. [2023-11-26 11:58:07,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-26 11:58:07,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:07,941 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:07,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:08,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:08,148 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:08,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:08,149 INFO L85 PathProgramCache]: Analyzing trace with hash 756957147, now seen corresponding path program 1 times [2023-11-26 11:58:08,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:08,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343057099] [2023-11-26 11:58:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:08,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:08,165 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:08,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100937581] [2023-11-26 11:58:08,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:08,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:08,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:08,167 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:08,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:58:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:58:08,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:08,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:58:08,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:08,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:08,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343057099] [2023-11-26 11:58:08,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:08,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100937581] [2023-11-26 11:58:08,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100937581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:08,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:08,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:08,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180027180] [2023-11-26 11:58:08,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:08,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:08,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:08,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:08,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:08,299 INFO L87 Difference]: Start difference. First operand 161 states and 183 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:58:08,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:08,453 INFO L93 Difference]: Finished difference Result 177 states and 194 transitions. [2023-11-26 11:58:08,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:08,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-26 11:58:08,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:08,455 INFO L225 Difference]: With dead ends: 177 [2023-11-26 11:58:08,455 INFO L226 Difference]: Without dead ends: 175 [2023-11-26 11:58:08,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:08,457 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 54 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:08,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 153 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:08,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-26 11:58:08,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 161. [2023-11-26 11:58:08,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 104 states have (on average 1.5480769230769231) internal successors, (161), 149 states have internal predecessors, (161), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 11:58:08,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 181 transitions. [2023-11-26 11:58:08,495 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 181 transitions. Word has length 27 [2023-11-26 11:58:08,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:08,496 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 181 transitions. [2023-11-26 11:58:08,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:58:08,496 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 181 transitions. [2023-11-26 11:58:08,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-26 11:58:08,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:08,497 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:08,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:08,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:08,707 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:08,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:08,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1990835155, now seen corresponding path program 1 times [2023-11-26 11:58:08,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:08,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240598569] [2023-11-26 11:58:08,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:08,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:08,721 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:08,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1930489806] [2023-11-26 11:58:08,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:08,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:08,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:08,723 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:08,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:58:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:58:08,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:08,831 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:58:08,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:08,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:08,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240598569] [2023-11-26 11:58:08,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:08,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930489806] [2023-11-26 11:58:08,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930489806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:08,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:08,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:08,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933323789] [2023-11-26 11:58:08,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:08,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:08,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:08,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:08,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:08,834 INFO L87 Difference]: Start difference. First operand 161 states and 181 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:58:08,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:08,971 INFO L93 Difference]: Finished difference Result 183 states and 192 transitions. [2023-11-26 11:58:08,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:08,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-11-26 11:58:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:08,973 INFO L225 Difference]: With dead ends: 183 [2023-11-26 11:58:08,974 INFO L226 Difference]: Without dead ends: 175 [2023-11-26 11:58:08,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:08,976 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 45 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:08,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 161 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:08,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-26 11:58:08,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 164. [2023-11-26 11:58:09,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 107 states have (on average 1.485981308411215) internal successors, (159), 152 states have internal predecessors, (159), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 11:58:09,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 179 transitions. [2023-11-26 11:58:09,004 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 179 transitions. Word has length 28 [2023-11-26 11:58:09,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:09,005 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 179 transitions. [2023-11-26 11:58:09,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:58:09,005 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 179 transitions. [2023-11-26 11:58:09,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 11:58:09,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:09,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:09,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-26 11:58:09,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:09,221 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:09,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:09,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1932139797, now seen corresponding path program 1 times [2023-11-26 11:58:09,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:09,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459746188] [2023-11-26 11:58:09,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:09,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:09,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:09,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2011679909] [2023-11-26 11:58:09,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:09,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:09,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:09,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:09,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:58:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:58:09,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:09,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:58:09,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:09,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:09,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459746188] [2023-11-26 11:58:09,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:09,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011679909] [2023-11-26 11:58:09,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011679909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:09,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:09,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:09,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668456287] [2023-11-26 11:58:09,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:09,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:09,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:09,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:09,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:09,400 INFO L87 Difference]: Start difference. First operand 164 states and 179 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:58:09,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:09,605 INFO L93 Difference]: Finished difference Result 175 states and 184 transitions. [2023-11-26 11:58:09,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:58:09,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-11-26 11:58:09,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:09,607 INFO L225 Difference]: With dead ends: 175 [2023-11-26 11:58:09,607 INFO L226 Difference]: Without dead ends: 173 [2023-11-26 11:58:09,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:09,608 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 53 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:09,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 210 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:09,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-26 11:58:09,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 164. [2023-11-26 11:58:09,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 107 states have (on average 1.4672897196261683) internal successors, (157), 152 states have internal predecessors, (157), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 11:58:09,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 177 transitions. [2023-11-26 11:58:09,619 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 177 transitions. Word has length 30 [2023-11-26 11:58:09,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:09,620 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 177 transitions. [2023-11-26 11:58:09,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:58:09,620 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 177 transitions. [2023-11-26 11:58:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-26 11:58:09,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:09,622 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:09,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:09,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:09,828 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:09,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:09,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1747126169, now seen corresponding path program 1 times [2023-11-26 11:58:09,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:09,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465774292] [2023-11-26 11:58:09,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:09,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:09,845 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:09,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2091209806] [2023-11-26 11:58:09,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:09,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:09,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:09,861 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:09,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:58:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:09,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:58:09,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:10,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:58:10,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:10,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:10,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465774292] [2023-11-26 11:58:10,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:10,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091209806] [2023-11-26 11:58:10,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091209806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:10,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:10,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:10,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793351295] [2023-11-26 11:58:10,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:10,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:10,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:10,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:10,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:10,067 INFO L87 Difference]: Start difference. First operand 164 states and 177 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:58:10,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:10,196 INFO L93 Difference]: Finished difference Result 169 states and 178 transitions. [2023-11-26 11:58:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:10,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-26 11:58:10,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:10,198 INFO L225 Difference]: With dead ends: 169 [2023-11-26 11:58:10,198 INFO L226 Difference]: Without dead ends: 141 [2023-11-26 11:58:10,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:10,200 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 70 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:10,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 143 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:10,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-26 11:58:10,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-11-26 11:58:10,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 86 states have (on average 1.5348837209302326) internal successors, (132), 131 states have internal predecessors, (132), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:58:10,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 148 transitions. [2023-11-26 11:58:10,208 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 148 transitions. Word has length 34 [2023-11-26 11:58:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:10,208 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 148 transitions. [2023-11-26 11:58:10,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:58:10,208 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2023-11-26 11:58:10,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-26 11:58:10,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:10,210 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:10,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:10,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:10,415 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:10,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:10,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1812886385, now seen corresponding path program 1 times [2023-11-26 11:58:10,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:10,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485661513] [2023-11-26 11:58:10,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:10,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:10,455 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:10,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717696915] [2023-11-26 11:58:10,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:10,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:10,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:10,462 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:10,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:58:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:10,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:58:10,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:10,680 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:58:10,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:10,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:10,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485661513] [2023-11-26 11:58:10,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:10,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717696915] [2023-11-26 11:58:10,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717696915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:10,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:10,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:10,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702794002] [2023-11-26 11:58:10,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:10,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:10,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:10,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:10,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:10,683 INFO L87 Difference]: Start difference. First operand 141 states and 148 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:58:10,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:10,803 INFO L93 Difference]: Finished difference Result 141 states and 148 transitions. [2023-11-26 11:58:10,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:58:10,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2023-11-26 11:58:10,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:10,806 INFO L225 Difference]: With dead ends: 141 [2023-11-26 11:58:10,806 INFO L226 Difference]: Without dead ends: 135 [2023-11-26 11:58:10,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:10,807 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 153 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:10,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 102 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:10,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-26 11:58:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2023-11-26 11:58:10,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 86 states have (on average 1.4651162790697674) internal successors, (126), 125 states have internal predecessors, (126), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:58:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 142 transitions. [2023-11-26 11:58:10,817 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 142 transitions. Word has length 47 [2023-11-26 11:58:10,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:10,817 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 142 transitions. [2023-11-26 11:58:10,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:58:10,817 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 142 transitions. [2023-11-26 11:58:10,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-26 11:58:10,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:10,819 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:10,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:11,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:11,025 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:11,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:11,025 INFO L85 PathProgramCache]: Analyzing trace with hash 364903199, now seen corresponding path program 1 times [2023-11-26 11:58:11,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:11,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813579] [2023-11-26 11:58:11,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:11,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:11,039 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:11,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1628652071] [2023-11-26 11:58:11,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:11,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:11,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:11,040 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:11,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:58:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:11,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:58:11,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:11,258 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:58:11,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:11,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:11,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813579] [2023-11-26 11:58:11,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:11,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628652071] [2023-11-26 11:58:11,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628652071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:11,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:11,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:11,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583556248] [2023-11-26 11:58:11,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:11,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:11,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:11,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:11,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:11,262 INFO L87 Difference]: Start difference. First operand 135 states and 142 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:58:11,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:11,378 INFO L93 Difference]: Finished difference Result 138 states and 145 transitions. [2023-11-26 11:58:11,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:58:11,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2023-11-26 11:58:11,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:11,380 INFO L225 Difference]: With dead ends: 138 [2023-11-26 11:58:11,381 INFO L226 Difference]: Without dead ends: 137 [2023-11-26 11:58:11,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:11,382 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:11,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:11,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-11-26 11:58:11,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2023-11-26 11:58:11,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 88 states have (on average 1.4545454545454546) internal successors, (128), 127 states have internal predecessors, (128), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:58:11,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 144 transitions. [2023-11-26 11:58:11,390 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 144 transitions. Word has length 48 [2023-11-26 11:58:11,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:11,390 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 144 transitions. [2023-11-26 11:58:11,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:58:11,390 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 144 transitions. [2023-11-26 11:58:11,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-26 11:58:11,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:11,392 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:11,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:11,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:11,597 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:11,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:11,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1515342495, now seen corresponding path program 1 times [2023-11-26 11:58:11,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:11,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246037970] [2023-11-26 11:58:11,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:11,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:11,609 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:11,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [209240656] [2023-11-26 11:58:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:11,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:11,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:11,611 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:11,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:58:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:11,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:58:11,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:58:11,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:11,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:11,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246037970] [2023-11-26 11:58:11,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:11,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209240656] [2023-11-26 11:58:11,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209240656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:11,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:11,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:11,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032622106] [2023-11-26 11:58:11,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:11,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:11,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:11,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:11,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:11,724 INFO L87 Difference]: Start difference. First operand 137 states and 144 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:58:11,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:11,805 INFO L93 Difference]: Finished difference Result 137 states and 144 transitions. [2023-11-26 11:58:11,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:58:11,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2023-11-26 11:58:11,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:11,807 INFO L225 Difference]: With dead ends: 137 [2023-11-26 11:58:11,807 INFO L226 Difference]: Without dead ends: 128 [2023-11-26 11:58:11,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:11,808 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 130 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:11,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 111 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:11,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-26 11:58:11,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-11-26 11:58:11,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 118 states have internal predecessors, (119), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:58:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 135 transitions. [2023-11-26 11:58:11,816 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 135 transitions. Word has length 50 [2023-11-26 11:58:11,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:11,817 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 135 transitions. [2023-11-26 11:58:11,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:58:11,817 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 135 transitions. [2023-11-26 11:58:11,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-26 11:58:11,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:11,818 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:11,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:12,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:12,025 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:12,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:12,025 INFO L85 PathProgramCache]: Analyzing trace with hash 269022963, now seen corresponding path program 1 times [2023-11-26 11:58:12,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:12,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874752006] [2023-11-26 11:58:12,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:12,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:12,037 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:12,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [602209858] [2023-11-26 11:58:12,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:12,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:12,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:12,038 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:12,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:58:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:12,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:58:12,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:12,174 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:58:12,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:58:12,273 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:58:12,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:12,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874752006] [2023-11-26 11:58:12,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:12,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602209858] [2023-11-26 11:58:12,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602209858] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:58:12,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:58:12,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-26 11:58:12,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095300308] [2023-11-26 11:58:12,275 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:58:12,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:58:12,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:12,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:58:12,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:58:12,277 INFO L87 Difference]: Start difference. First operand 128 states and 135 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:58:12,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:12,474 INFO L93 Difference]: Finished difference Result 220 states and 246 transitions. [2023-11-26 11:58:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:58:12,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2023-11-26 11:58:12,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:12,477 INFO L225 Difference]: With dead ends: 220 [2023-11-26 11:58:12,477 INFO L226 Difference]: Without dead ends: 211 [2023-11-26 11:58:12,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:58:12,478 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 164 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:12,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 190 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:12,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-26 11:58:12,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 119. [2023-11-26 11:58:12,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 88 states have (on average 1.25) internal successors, (110), 109 states have internal predecessors, (110), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:58:12,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 126 transitions. [2023-11-26 11:58:12,488 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 126 transitions. Word has length 51 [2023-11-26 11:58:12,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:12,488 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 126 transitions. [2023-11-26 11:58:12,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:58:12,488 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 126 transitions. [2023-11-26 11:58:12,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 11:58:12,489 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:12,490 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:12,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:12,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 11:58:12,696 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:12,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:12,697 INFO L85 PathProgramCache]: Analyzing trace with hash -63646801, now seen corresponding path program 1 times [2023-11-26 11:58:12,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:12,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112020863] [2023-11-26 11:58:12,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:12,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:12,709 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:12,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2026517054] [2023-11-26 11:58:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:12,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:12,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:12,711 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:12,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:58:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:12,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:58:12,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:12,851 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:58:12,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:58:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:58:13,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:13,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112020863] [2023-11-26 11:58:13,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:13,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026517054] [2023-11-26 11:58:13,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026517054] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:58:13,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:58:13,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-26 11:58:13,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616310429] [2023-11-26 11:58:13,008 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:58:13,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:58:13,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:13,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:58:13,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:58:13,012 INFO L87 Difference]: Start difference. First operand 119 states and 126 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-26 11:58:13,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:13,232 INFO L93 Difference]: Finished difference Result 286 states and 308 transitions. [2023-11-26 11:58:13,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:58:13,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 64 [2023-11-26 11:58:13,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:13,235 INFO L225 Difference]: With dead ends: 286 [2023-11-26 11:58:13,235 INFO L226 Difference]: Without dead ends: 284 [2023-11-26 11:58:13,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:58:13,239 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 215 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:13,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 280 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-26 11:58:13,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 196. [2023-11-26 11:58:13,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 159 states have (on average 1.2830188679245282) internal successors, (204), 179 states have internal predecessors, (204), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-26 11:58:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 234 transitions. [2023-11-26 11:58:13,258 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 234 transitions. Word has length 64 [2023-11-26 11:58:13,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:13,259 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 234 transitions. [2023-11-26 11:58:13,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-26 11:58:13,259 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 234 transitions. [2023-11-26 11:58:13,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 11:58:13,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:13,260 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:13,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:13,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 11:58:13,466 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:13,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:13,467 INFO L85 PathProgramCache]: Analyzing trace with hash -906332907, now seen corresponding path program 1 times [2023-11-26 11:58:13,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:13,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882117756] [2023-11-26 11:58:13,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:13,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:13,479 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:13,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248884402] [2023-11-26 11:58:13,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:13,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:13,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:13,480 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:13,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:58:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:13,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:58:13,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:13,621 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-26 11:58:13,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:58:13,767 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-26 11:58:13,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:13,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882117756] [2023-11-26 11:58:13,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:13,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248884402] [2023-11-26 11:58:13,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248884402] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:58:13,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:58:13,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-26 11:58:13,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73287609] [2023-11-26 11:58:13,768 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:58:13,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:58:13,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:13,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:58:13,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:58:13,770 INFO L87 Difference]: Start difference. First operand 196 states and 234 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-26 11:58:14,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:14,058 INFO L93 Difference]: Finished difference Result 278 states and 307 transitions. [2023-11-26 11:58:14,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:58:14,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 71 [2023-11-26 11:58:14,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:14,061 INFO L225 Difference]: With dead ends: 278 [2023-11-26 11:58:14,061 INFO L226 Difference]: Without dead ends: 273 [2023-11-26 11:58:14,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:58:14,062 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 194 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:14,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 215 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:14,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-26 11:58:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 195. [2023-11-26 11:58:14,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 161 states have (on average 1.2173913043478262) internal successors, (196), 177 states have internal predecessors, (196), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:58:14,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 228 transitions. [2023-11-26 11:58:14,106 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 228 transitions. Word has length 71 [2023-11-26 11:58:14,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:14,107 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 228 transitions. [2023-11-26 11:58:14,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-26 11:58:14,107 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 228 transitions. [2023-11-26 11:58:14,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-26 11:58:14,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:14,108 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:14,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:14,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 11:58:14,315 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:14,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:14,315 INFO L85 PathProgramCache]: Analyzing trace with hash 892439895, now seen corresponding path program 1 times [2023-11-26 11:58:14,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:14,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324300494] [2023-11-26 11:58:14,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:14,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:14,327 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:14,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1808165784] [2023-11-26 11:58:14,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:14,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:14,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:14,328 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:14,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 11:58:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:14,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:58:14,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:14,555 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-26 11:58:14,555 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:58:14,671 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-26 11:58:14,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:14,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324300494] [2023-11-26 11:58:14,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:14,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808165784] [2023-11-26 11:58:14,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808165784] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:58:14,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:58:14,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-26 11:58:14,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378431578] [2023-11-26 11:58:14,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:58:14,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:58:14,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:14,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:58:14,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:58:14,675 INFO L87 Difference]: Start difference. First operand 195 states and 228 transitions. Second operand has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-26 11:58:14,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:14,930 INFO L93 Difference]: Finished difference Result 227 states and 260 transitions. [2023-11-26 11:58:14,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:58:14,931 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 73 [2023-11-26 11:58:14,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:14,933 INFO L225 Difference]: With dead ends: 227 [2023-11-26 11:58:14,933 INFO L226 Difference]: Without dead ends: 218 [2023-11-26 11:58:14,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:58:14,934 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 143 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:14,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 167 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:58:14,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-11-26 11:58:14,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 188. [2023-11-26 11:58:14,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 161 states have (on average 1.1180124223602483) internal successors, (180), 170 states have internal predecessors, (180), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:58:14,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 212 transitions. [2023-11-26 11:58:14,951 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 212 transitions. Word has length 73 [2023-11-26 11:58:14,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:14,951 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 212 transitions. [2023-11-26 11:58:14,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-26 11:58:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 212 transitions. [2023-11-26 11:58:14,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-26 11:58:14,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:14,952 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:14,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:15,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 11:58:15,158 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:15,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:15,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1358717543, now seen corresponding path program 1 times [2023-11-26 11:58:15,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:15,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707909716] [2023-11-26 11:58:15,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:15,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:15,170 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:15,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041972358] [2023-11-26 11:58:15,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:15,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:15,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:15,171 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:15,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-26 11:58:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:15,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:58:15,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-26 11:58:15,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:15,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:15,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707909716] [2023-11-26 11:58:15,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:15,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041972358] [2023-11-26 11:58:15,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041972358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:15,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:15,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:58:15,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712426754] [2023-11-26 11:58:15,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:15,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:58:15,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:15,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:58:15,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:58:15,475 INFO L87 Difference]: Start difference. First operand 188 states and 212 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 11:58:15,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:15,609 INFO L93 Difference]: Finished difference Result 188 states and 212 transitions. [2023-11-26 11:58:15,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:58:15,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 75 [2023-11-26 11:58:15,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:15,611 INFO L225 Difference]: With dead ends: 188 [2023-11-26 11:58:15,611 INFO L226 Difference]: Without dead ends: 158 [2023-11-26 11:58:15,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:58:15,615 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 73 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:15,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 107 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:15,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-26 11:58:15,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-11-26 11:58:15,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.0359712230215827) internal successors, (144), 142 states have internal predecessors, (144), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-26 11:58:15,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 172 transitions. [2023-11-26 11:58:15,630 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 172 transitions. Word has length 75 [2023-11-26 11:58:15,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:15,630 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 172 transitions. [2023-11-26 11:58:15,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 11:58:15,631 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 172 transitions. [2023-11-26 11:58:15,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-26 11:58:15,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:15,632 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-11-26 11:58:15,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:15,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-26 11:58:15,839 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:15,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:15,839 INFO L85 PathProgramCache]: Analyzing trace with hash 51405215, now seen corresponding path program 1 times [2023-11-26 11:58:15,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:15,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864296496] [2023-11-26 11:58:15,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:15,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:15,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:15,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1588484254] [2023-11-26 11:58:15,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:15,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:15,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:15,857 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:15,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-26 11:58:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:15,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:58:15,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:16,353 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-26 11:58:16,353 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:58:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-26 11:58:16,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:16,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864296496] [2023-11-26 11:58:16,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:16,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588484254] [2023-11-26 11:58:16,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588484254] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:58:16,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:58:16,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-26 11:58:16,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328641239] [2023-11-26 11:58:16,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:58:16,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:58:16,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:16,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:58:16,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:58:16,660 INFO L87 Difference]: Start difference. First operand 158 states and 172 transitions. Second operand has 14 states, 13 states have (on average 14.384615384615385) internal successors, (187), 14 states have internal predecessors, (187), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-26 11:58:17,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:17,074 INFO L93 Difference]: Finished difference Result 250 states and 273 transitions. [2023-11-26 11:58:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:58:17,075 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.384615384615385) internal successors, (187), 14 states have internal predecessors, (187), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 138 [2023-11-26 11:58:17,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:17,078 INFO L225 Difference]: With dead ends: 250 [2023-11-26 11:58:17,078 INFO L226 Difference]: Without dead ends: 249 [2023-11-26 11:58:17,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=240, Unknown=0, NotChecked=0, Total=420 [2023-11-26 11:58:17,079 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 22 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:17,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 194 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:58:17,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-26 11:58:17,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 242. [2023-11-26 11:58:17,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 216 states have (on average 1.0509259259259258) internal successors, (227), 219 states have internal predecessors, (227), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-26 11:58:17,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 269 transitions. [2023-11-26 11:58:17,102 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 269 transitions. Word has length 138 [2023-11-26 11:58:17,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:17,103 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 269 transitions. [2023-11-26 11:58:17,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.384615384615385) internal successors, (187), 14 states have internal predecessors, (187), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-26 11:58:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 269 transitions. [2023-11-26 11:58:17,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-26 11:58:17,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:17,106 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-26 11:58:17,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:17,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 11:58:17,313 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:17,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:17,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1705604823, now seen corresponding path program 2 times [2023-11-26 11:58:17,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:17,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717238104] [2023-11-26 11:58:17,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:17,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:17,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:17,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [52575192] [2023-11-26 11:58:17,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:58:17,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:17,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:17,331 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:17,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-26 11:58:17,430 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:58:17,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:58:17,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:58:17,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:17,863 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-26 11:58:17,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:58:18,215 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-26 11:58:18,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:18,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717238104] [2023-11-26 11:58:18,215 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:18,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52575192] [2023-11-26 11:58:18,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52575192] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:58:18,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:58:18,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-26 11:58:18,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320020011] [2023-11-26 11:58:18,217 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:58:18,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-26 11:58:18,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:18,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-26 11:58:18,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:58:18,220 INFO L87 Difference]: Start difference. First operand 242 states and 269 transitions. Second operand has 16 states, 15 states have (on average 14.466666666666667) internal successors, (217), 16 states have internal predecessors, (217), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-26 11:58:18,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:18,666 INFO L93 Difference]: Finished difference Result 266 states and 291 transitions. [2023-11-26 11:58:18,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:58:18,667 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 14.466666666666667) internal successors, (217), 16 states have internal predecessors, (217), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 163 [2023-11-26 11:58:18,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:18,669 INFO L225 Difference]: With dead ends: 266 [2023-11-26 11:58:18,669 INFO L226 Difference]: Without dead ends: 265 [2023-11-26 11:58:18,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=247, Invalid=353, Unknown=0, NotChecked=0, Total=600 [2023-11-26 11:58:18,670 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 82 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:18,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 243 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:58:18,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-11-26 11:58:18,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 259. [2023-11-26 11:58:18,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 231 states have (on average 1.0432900432900434) internal successors, (241), 234 states have internal predecessors, (241), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-26 11:58:18,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 287 transitions. [2023-11-26 11:58:18,692 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 287 transitions. Word has length 163 [2023-11-26 11:58:18,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:18,693 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 287 transitions. [2023-11-26 11:58:18,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 14.466666666666667) internal successors, (217), 16 states have internal predecessors, (217), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-26 11:58:18,693 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 287 transitions. [2023-11-26 11:58:18,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-26 11:58:18,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:18,696 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-26 11:58:18,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:18,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-26 11:58:18,902 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:18,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:18,903 INFO L85 PathProgramCache]: Analyzing trace with hash 2110938291, now seen corresponding path program 2 times [2023-11-26 11:58:18,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:18,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966591770] [2023-11-26 11:58:18,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:18,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:18,934 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:18,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1447711476] [2023-11-26 11:58:18,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:58:18,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:18,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:18,947 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:18,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-26 11:58:19,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:58:19,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:58:19,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 11:58:19,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-26 11:58:19,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:58:19,763 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-26 11:58:19,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:19,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966591770] [2023-11-26 11:58:19,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:19,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447711476] [2023-11-26 11:58:19,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447711476] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:58:19,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:58:19,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-26 11:58:19,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695014056] [2023-11-26 11:58:19,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:58:19,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 11:58:19,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:19,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:58:19,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:58:19,766 INFO L87 Difference]: Start difference. First operand 259 states and 287 transitions. Second operand has 12 states, 11 states have (on average 24.454545454545453) internal successors, (269), 12 states have internal predecessors, (269), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-26 11:58:20,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:20,315 INFO L93 Difference]: Finished difference Result 364 states and 399 transitions. [2023-11-26 11:58:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:58:20,316 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 24.454545454545453) internal successors, (269), 12 states have internal predecessors, (269), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 199 [2023-11-26 11:58:20,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:20,319 INFO L225 Difference]: With dead ends: 364 [2023-11-26 11:58:20,319 INFO L226 Difference]: Without dead ends: 363 [2023-11-26 11:58:20,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:58:20,320 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 122 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:20,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 687 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 11:58:20,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-26 11:58:20,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 353. [2023-11-26 11:58:20,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 317 states have (on average 1.0441640378548895) internal successors, (331), 320 states have internal predecessors, (331), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-26 11:58:20,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 393 transitions. [2023-11-26 11:58:20,348 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 393 transitions. Word has length 199 [2023-11-26 11:58:20,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:20,349 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 393 transitions. [2023-11-26 11:58:20,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 24.454545454545453) internal successors, (269), 12 states have internal predecessors, (269), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-26 11:58:20,350 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 393 transitions. [2023-11-26 11:58:20,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-26 11:58:20,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:20,353 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-26 11:58:20,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:20,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-26 11:58:20,559 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:20,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:20,559 INFO L85 PathProgramCache]: Analyzing trace with hash -834306159, now seen corresponding path program 2 times [2023-11-26 11:58:20,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:20,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754199219] [2023-11-26 11:58:20,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:20,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:20,581 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:20,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1710359061] [2023-11-26 11:58:20,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:58:20,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:20,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:20,583 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:20,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-26 11:58:20,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:58:20,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:58:20,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-26 11:58:20,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:21,258 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-26 11:58:21,259 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:58:21,762 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-26 11:58:21,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:21,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754199219] [2023-11-26 11:58:21,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:21,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710359061] [2023-11-26 11:58:21,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710359061] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:58:21,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:58:21,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 15 [2023-11-26 11:58:21,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915964891] [2023-11-26 11:58:21,763 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:58:21,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-26 11:58:21,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:21,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-26 11:58:21,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:58:21,766 INFO L87 Difference]: Start difference. First operand 353 states and 393 transitions. Second operand has 16 states, 15 states have (on average 18.2) internal successors, (273), 16 states have internal predecessors, (273), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-26 11:58:22,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:22,809 INFO L93 Difference]: Finished difference Result 362 states and 398 transitions. [2023-11-26 11:58:22,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 11:58:22,810 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.2) internal successors, (273), 16 states have internal predecessors, (273), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 206 [2023-11-26 11:58:22,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:22,812 INFO L225 Difference]: With dead ends: 362 [2023-11-26 11:58:22,813 INFO L226 Difference]: Without dead ends: 361 [2023-11-26 11:58:22,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=241, Unknown=0, NotChecked=0, Total=380 [2023-11-26 11:58:22,814 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 119 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:22,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 439 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:58:22,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-26 11:58:22,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 356. [2023-11-26 11:58:22,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 319 states have (on average 1.0282131661442007) internal successors, (328), 322 states have internal predecessors, (328), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 11:58:22,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 392 transitions. [2023-11-26 11:58:22,846 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 392 transitions. Word has length 206 [2023-11-26 11:58:22,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:22,847 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 392 transitions. [2023-11-26 11:58:22,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.2) internal successors, (273), 16 states have internal predecessors, (273), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-26 11:58:22,848 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 392 transitions. [2023-11-26 11:58:22,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2023-11-26 11:58:22,853 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:22,853 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1] [2023-11-26 11:58:22,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:23,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:23,060 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:23,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:23,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1889259167, now seen corresponding path program 2 times [2023-11-26 11:58:23,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:23,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831974466] [2023-11-26 11:58:23,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:23,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:23,092 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:23,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [18902086] [2023-11-26 11:58:23,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:58:23,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:23,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:23,094 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:23,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-26 11:58:23,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:58:23,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:58:23,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:58:23,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:23,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2023-11-26 11:58:23,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:58:24,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2023-11-26 11:58:24,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:24,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831974466] [2023-11-26 11:58:24,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:24,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18902086] [2023-11-26 11:58:24,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18902086] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:58:24,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:58:24,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-26 11:58:24,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903476496] [2023-11-26 11:58:24,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:58:24,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 11:58:24,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:24,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:58:24,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:58:24,179 INFO L87 Difference]: Start difference. First operand 356 states and 392 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-26 11:58:24,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:24,314 INFO L93 Difference]: Finished difference Result 356 states and 392 transitions. [2023-11-26 11:58:24,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:58:24,314 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 318 [2023-11-26 11:58:24,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:24,318 INFO L225 Difference]: With dead ends: 356 [2023-11-26 11:58:24,318 INFO L226 Difference]: Without dead ends: 355 [2023-11-26 11:58:24,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 626 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:58:24,319 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 140 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:24,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 95 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:58:24,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-11-26 11:58:24,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2023-11-26 11:58:24,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 319 states have (on average 1.0156739811912225) internal successors, (324), 321 states have internal predecessors, (324), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 11:58:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 388 transitions. [2023-11-26 11:58:24,351 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 388 transitions. Word has length 318 [2023-11-26 11:58:24,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:24,352 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 388 transitions. [2023-11-26 11:58:24,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-26 11:58:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 388 transitions. [2023-11-26 11:58:24,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2023-11-26 11:58:24,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:24,359 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2023-11-26 11:58:24,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:24,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:24,566 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:24,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:24,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1122150871, now seen corresponding path program 3 times [2023-11-26 11:58:24,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:24,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17875124] [2023-11-26 11:58:24,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:24,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:24,588 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:24,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308745567] [2023-11-26 11:58:24,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 11:58:24,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:24,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:24,590 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:24,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-26 11:58:24,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-26 11:58:24,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:58:24,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-26 11:58:24,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:27,226 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~a~0#1| Int)) (let ((.cse0 (* 2 |ULTIMATE.start_main_~a~0#1|))) (and (<= |c_ULTIMATE.start_main_~s~0#1| (+ 51 .cse0)) (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) .cse0) 9223372036854775806)))) is different from true [2023-11-26 11:58:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 63 proven. 123 refuted. 0 times theorem prover too weak. 1603 trivial. 35 not checked. [2023-11-26 11:58:27,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:58:28,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:28,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17875124] [2023-11-26 11:58:28,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:58:28,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308745567] [2023-11-26 11:58:28,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308745567] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:58:28,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:58:28,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-26 11:58:28,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565630802] [2023-11-26 11:58:28,336 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:58:28,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 11:58:28,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:28,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:58:28,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=170, Unknown=1, NotChecked=26, Total=240 [2023-11-26 11:58:28,338 INFO L87 Difference]: Start difference. First operand 355 states and 388 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-26 11:58:28,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:28,753 INFO L93 Difference]: Finished difference Result 355 states and 388 transitions. [2023-11-26 11:58:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:58:28,754 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 343 [2023-11-26 11:58:28,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:28,757 INFO L225 Difference]: With dead ends: 355 [2023-11-26 11:58:28,757 INFO L226 Difference]: Without dead ends: 354 [2023-11-26 11:58:28,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 361 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=94, Invalid=329, Unknown=1, NotChecked=38, Total=462 [2023-11-26 11:58:28,759 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 111 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:28,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 43 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 192 Invalid, 0 Unknown, 64 Unchecked, 0.2s Time] [2023-11-26 11:58:28,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-26 11:58:28,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2023-11-26 11:58:28,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 319 states have (on average 1.006269592476489) internal successors, (321), 320 states have internal predecessors, (321), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 11:58:28,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 385 transitions. [2023-11-26 11:58:28,802 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 385 transitions. Word has length 343 [2023-11-26 11:58:28,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:28,803 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 385 transitions. [2023-11-26 11:58:28,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-26 11:58:28,804 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 385 transitions. [2023-11-26 11:58:28,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2023-11-26 11:58:28,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:28,808 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-11-26 11:58:28,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:29,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:29,016 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-26 11:58:29,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:29,016 INFO L85 PathProgramCache]: Analyzing trace with hash 634951987, now seen corresponding path program 3 times [2023-11-26 11:58:29,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:29,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641787332] [2023-11-26 11:58:29,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:29,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:29,046 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:58:29,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945767793] [2023-11-26 11:58:29,047 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 11:58:29,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:29,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:29,048 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:29,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aebfc56-836f-425f-9255-7fefd50f23c5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-26 11:58:29,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-26 11:58:29,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:58:29,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-26 11:58:29,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 3465 backedges. 465 proven. 174 refuted. 0 times theorem prover too weak. 2826 trivial. 0 not checked. [2023-11-26 11:58:30,978 INFO L327 TraceCheckSpWp]: Computing backward predicates...