./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/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_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/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_1389fd86-0d9c-407f-a2ac-e4031fd48e88/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 c7383f54d0aefdd248f516d45c67549426beac87be78bf6e7bb8108aedb7974b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:48:36,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:48:36,735 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:48:36,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:48:36,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:48:36,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:48:36,787 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:48:36,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:48:36,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:48:36,789 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:48:36,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:48:36,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:48:36,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:48:36,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:48:36,792 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:48:36,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:48:36,794 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:48:36,794 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:48:36,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:48:36,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:48:36,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:48:36,796 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:48:36,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:48:36,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:48:36,798 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:48:36,798 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:48:36,799 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:48:36,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:48:36,800 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:48:36,800 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:48:36,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:48:36,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:48:36,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:48:36,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:48:36,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:48:36,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:48:36,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:48:36,803 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:48:36,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:48:36,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:48:36,804 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:48:36,804 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:48:36,805 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:48:36,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:48:36,805 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_1389fd86-0d9c-407f-a2ac-e4031fd48e88/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7383f54d0aefdd248f516d45c67549426beac87be78bf6e7bb8108aedb7974b [2023-11-26 11:48:37,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:48:37,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:48:37,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:48:37,174 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:48:37,174 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:48:37,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c [2023-11-26 11:48:40,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:48:40,636 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:48:40,637 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c [2023-11-26 11:48:40,646 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/data/5a6899ae2/b7674c8e24094b8db87b2c79c77b1bfc/FLAG6b1f89fb8 [2023-11-26 11:48:40,675 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/data/5a6899ae2/b7674c8e24094b8db87b2c79c77b1bfc [2023-11-26 11:48:40,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:48:40,685 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:48:40,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:48:40,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:48:40,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:48:40,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:40,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9f4e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40, skipping insertion in model container [2023-11-26 11:48:40,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:40,727 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:48:40,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:48:40,926 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:48:40,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:48:40,965 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:48:40,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40 WrapperNode [2023-11-26 11:48:40,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:48:40,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:48:40,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:48:40,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:48:40,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:40,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:41,011 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2023-11-26 11:48:41,011 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:48:41,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:48:41,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:48:41,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:48:41,025 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:41,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:41,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:41,042 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-26 11:48:41,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:41,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:41,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:41,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:41,053 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:41,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:41,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:48:41,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:48:41,058 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:48:41,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:48:41,059 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (1/1) ... [2023-11-26 11:48:41,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:48:41,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:41,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:48:41,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:48:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:48:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:48:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:48:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:48:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:48:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 11:48:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 11:48:41,240 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:48:41,243 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:48:41,611 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:48:41,654 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:48:41,654 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:48:41,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:48:41 BoogieIcfgContainer [2023-11-26 11:48:41,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:48:41,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:48:41,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:48:41,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:48:41,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:48:40" (1/3) ... [2023-11-26 11:48:41,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5224310f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:48:41, skipping insertion in model container [2023-11-26 11:48:41,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:40" (2/3) ... [2023-11-26 11:48:41,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5224310f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:48:41, skipping insertion in model container [2023-11-26 11:48:41,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:48:41" (3/3) ... [2023-11-26 11:48:41,665 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_unwindbound1.c [2023-11-26 11:48:41,680 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:48:41,681 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-26 11:48:41,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:48:41,739 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;@91167cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:48:41,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-26 11:48:41,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 40 states have (on average 1.9) internal successors, (76), 68 states have internal predecessors, (76), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 11:48:41,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 11:48:41,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:41,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 11:48:41,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:41,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:41,756 INFO L85 PathProgramCache]: Analyzing trace with hash 163595, now seen corresponding path program 1 times [2023-11-26 11:48:41,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:41,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736656618] [2023-11-26 11:48:41,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:41,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:42,037 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 11:48:42,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:42,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736656618] [2023-11-26 11:48:42,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736656618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:42,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:42,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:48:42,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138254562] [2023-11-26 11:48:42,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:42,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:48:42,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:42,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:48:42,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:48:42,104 INFO L87 Difference]: Start difference. First operand has 77 states, 40 states have (on average 1.9) internal successors, (76), 68 states have internal predecessors, (76), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:42,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:42,215 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2023-11-26 11:48:42,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:48:42,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-26 11:48:42,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:42,228 INFO L225 Difference]: With dead ends: 157 [2023-11-26 11:48:42,228 INFO L226 Difference]: Without dead ends: 77 [2023-11-26 11:48:42,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:48:42,236 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 4 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:42,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 239 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:42,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-26 11:48:42,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-26 11:48:42,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 43 states have (on average 1.744186046511628) internal successors, (75), 70 states have internal predecessors, (75), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 11:48:42,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2023-11-26 11:48:42,290 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 3 [2023-11-26 11:48:42,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:42,290 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2023-11-26 11:48:42,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2023-11-26 11:48:42,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 11:48:42,293 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:42,293 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:42,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:48:42,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:42,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:42,295 INFO L85 PathProgramCache]: Analyzing trace with hash -576103490, now seen corresponding path program 1 times [2023-11-26 11:48:42,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:42,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141658016] [2023-11-26 11:48:42,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:42,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:42,320 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:42,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747452964] [2023-11-26 11:48:42,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:42,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:42,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:42,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:42,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:48:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:42,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:48:42,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:42,557 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 11:48:42,557 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:48:42,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:42,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141658016] [2023-11-26 11:48:42,558 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:42,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747452964] [2023-11-26 11:48:42,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747452964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:42,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:42,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:48:42,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557212736] [2023-11-26 11:48:42,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:42,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:48:42,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:42,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:48:42,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:42,572 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:48:42,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:42,760 INFO L93 Difference]: Finished difference Result 171 states and 190 transitions. [2023-11-26 11:48:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:48:42,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-11-26 11:48:42,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:42,766 INFO L225 Difference]: With dead ends: 171 [2023-11-26 11:48:42,767 INFO L226 Difference]: Without dead ends: 118 [2023-11-26 11:48:42,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:42,770 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 36 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:42,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 121 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:48:42,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-26 11:48:42,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2023-11-26 11:48:42,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.721311475409836) internal successors, (105), 88 states have internal predecessors, (105), 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 11:48:42,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2023-11-26 11:48:42,794 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 16 [2023-11-26 11:48:42,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:42,795 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2023-11-26 11:48:42,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:48:42,796 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2023-11-26 11:48:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 11:48:42,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:42,797 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:42,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:42,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-26 11:48:42,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:42,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:42,999 INFO L85 PathProgramCache]: Analyzing trace with hash -679338954, now seen corresponding path program 1 times [2023-11-26 11:48:43,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:43,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759757005] [2023-11-26 11:48:43,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:43,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:43,024 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:43,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [192916464] [2023-11-26 11:48:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:43,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:43,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:43,047 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:43,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:48:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:43,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:48:43,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:43,165 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 11:48:43,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:48:43,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:43,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759757005] [2023-11-26 11:48:43,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:43,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192916464] [2023-11-26 11:48:43,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192916464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:43,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:43,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:48:43,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302716913] [2023-11-26 11:48:43,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:43,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:48:43,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:43,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:48:43,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:43,170 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 11:48:43,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:43,251 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2023-11-26 11:48:43,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:48:43,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 17 [2023-11-26 11:48:43,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:43,254 INFO L225 Difference]: With dead ends: 118 [2023-11-26 11:48:43,255 INFO L226 Difference]: Without dead ends: 116 [2023-11-26 11:48:43,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 11:48:43,257 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 33 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:43,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 120 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:48:43,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-26 11:48:43,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 100. [2023-11-26 11:48:43,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.6885245901639345) internal successors, (103), 88 states have internal predecessors, (103), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 11:48:43,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2023-11-26 11:48:43,274 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 17 [2023-11-26 11:48:43,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:43,275 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2023-11-26 11:48:43,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 11:48:43,276 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2023-11-26 11:48:43,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-26 11:48:43,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:43,277 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:43,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:43,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:43,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:43,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:43,489 INFO L85 PathProgramCache]: Analyzing trace with hash 117225432, now seen corresponding path program 1 times [2023-11-26 11:48:43,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:43,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960104180] [2023-11-26 11:48:43,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:43,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:43,522 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:43,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030783115] [2023-11-26 11:48:43,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:43,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:43,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:43,533 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:43,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:48:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:43,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:48:43,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:43,663 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 11:48:43,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:48:43,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:43,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960104180] [2023-11-26 11:48:43,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:43,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030783115] [2023-11-26 11:48:43,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030783115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:43,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:43,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:48:43,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030543974] [2023-11-26 11:48:43,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:43,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:48:43,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:43,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:48:43,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:43,667 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:43,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:43,729 INFO L93 Difference]: Finished difference Result 132 states and 159 transitions. [2023-11-26 11:48:43,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:48:43,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-11-26 11:48:43,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:43,735 INFO L225 Difference]: With dead ends: 132 [2023-11-26 11:48:43,735 INFO L226 Difference]: Without dead ends: 130 [2023-11-26 11:48:43,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:43,738 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 42 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:43,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 103 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:43,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-26 11:48:43,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 113. [2023-11-26 11:48:43,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 73 states have (on average 1.6849315068493151) internal successors, (123), 99 states have internal predecessors, (123), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:48:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 147 transitions. [2023-11-26 11:48:43,770 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 147 transitions. Word has length 24 [2023-11-26 11:48:43,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:43,771 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 147 transitions. [2023-11-26 11:48:43,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:43,771 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 147 transitions. [2023-11-26 11:48:43,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 11:48:43,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:43,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:43,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:43,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:43,981 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:43,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:43,982 INFO L85 PathProgramCache]: Analyzing trace with hash -660980348, now seen corresponding path program 1 times [2023-11-26 11:48:43,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:43,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018638116] [2023-11-26 11:48:43,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:43,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:44,005 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:44,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454800580] [2023-11-26 11:48:44,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:44,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:44,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:44,012 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:44,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:48:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:44,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:48:44,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:44,180 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 11:48:44,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:48:44,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:44,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018638116] [2023-11-26 11:48:44,182 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:44,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454800580] [2023-11-26 11:48:44,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454800580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:44,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:44,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:48:44,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010004755] [2023-11-26 11:48:44,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:44,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:48:44,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:44,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:48:44,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:48:44,191 INFO L87 Difference]: Start difference. First operand 113 states and 147 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:44,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:44,258 INFO L93 Difference]: Finished difference Result 126 states and 157 transitions. [2023-11-26 11:48:44,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:48:44,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-11-26 11:48:44,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:44,265 INFO L225 Difference]: With dead ends: 126 [2023-11-26 11:48:44,265 INFO L226 Difference]: Without dead ends: 56 [2023-11-26 11:48:44,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:48:44,267 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 55 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:44,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 87 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:44,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-26 11:48:44,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2023-11-26 11:48:44,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 34 states have (on average 1.411764705882353) internal successors, (48), 44 states have internal predecessors, (48), 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 11:48:44,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2023-11-26 11:48:44,284 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 25 [2023-11-26 11:48:44,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:44,284 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2023-11-26 11:48:44,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:44,285 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2023-11-26 11:48:44,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 11:48:44,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:44,286 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:44,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:44,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:44,488 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:44,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:44,489 INFO L85 PathProgramCache]: Analyzing trace with hash -660978842, now seen corresponding path program 1 times [2023-11-26 11:48:44,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:44,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738920869] [2023-11-26 11:48:44,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:44,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:44,503 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:44,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483296450] [2023-11-26 11:48:44,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:44,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:44,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:44,505 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:44,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:48:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:44,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:48:44,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:44,616 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 11:48:44,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:48:44,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:44,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738920869] [2023-11-26 11:48:44,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:44,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483296450] [2023-11-26 11:48:44,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483296450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:44,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:44,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:48:44,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661392705] [2023-11-26 11:48:44,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:44,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:48:44,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:44,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:48:44,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:44,620 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:44,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:44,658 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2023-11-26 11:48:44,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:48:44,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-11-26 11:48:44,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:44,661 INFO L225 Difference]: With dead ends: 66 [2023-11-26 11:48:44,661 INFO L226 Difference]: Without dead ends: 65 [2023-11-26 11:48:44,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:44,662 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 13 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:44,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 57 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:44,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-26 11:48:44,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 52. [2023-11-26 11:48:44,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 44 states have internal predecessors, (47), 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 11:48:44,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2023-11-26 11:48:44,679 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 25 [2023-11-26 11:48:44,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:44,680 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2023-11-26 11:48:44,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:44,680 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2023-11-26 11:48:44,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-26 11:48:44,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:44,681 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:44,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:44,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:44,882 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:44,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:44,882 INFO L85 PathProgramCache]: Analyzing trace with hash 984445769, now seen corresponding path program 1 times [2023-11-26 11:48:44,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:44,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960044650] [2023-11-26 11:48:44,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:44,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:44,902 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:44,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372843318] [2023-11-26 11:48:44,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:44,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:44,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:44,904 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:44,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:48:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:44,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:48:44,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:45,042 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 11:48:45,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:48:45,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:45,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960044650] [2023-11-26 11:48:45,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:45,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372843318] [2023-11-26 11:48:45,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372843318] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:45,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:45,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:48:45,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943462241] [2023-11-26 11:48:45,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:45,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:48:45,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:45,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:48:45,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:48:45,046 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:45,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:45,133 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2023-11-26 11:48:45,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:48:45,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2023-11-26 11:48:45,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:45,135 INFO L225 Difference]: With dead ends: 65 [2023-11-26 11:48:45,135 INFO L226 Difference]: Without dead ends: 64 [2023-11-26 11:48:45,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:48:45,137 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 14 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:45,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 155 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:48:45,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-26 11:48:45,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 59. [2023-11-26 11:48:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 40 states have (on average 1.325) internal successors, (53), 50 states have internal predecessors, (53), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:48:45,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2023-11-26 11:48:45,157 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 26 [2023-11-26 11:48:45,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:45,160 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2023-11-26 11:48:45,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2023-11-26 11:48:45,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-26 11:48:45,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:45,163 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:45,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:45,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:45,370 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:45,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:45,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1159581497, now seen corresponding path program 1 times [2023-11-26 11:48:45,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:45,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855489907] [2023-11-26 11:48:45,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:45,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:45,397 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:45,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056032189] [2023-11-26 11:48:45,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:45,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:45,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:45,401 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:45,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:48:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:45,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:48:45,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:45,495 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 11:48:45,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:48:45,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:45,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855489907] [2023-11-26 11:48:45,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:45,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056032189] [2023-11-26 11:48:45,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056032189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:45,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:45,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:48:45,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116970121] [2023-11-26 11:48:45,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:45,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:48:45,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:45,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:48:45,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:45,500 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:45,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:45,514 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2023-11-26 11:48:45,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:48:45,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-11-26 11:48:45,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:45,516 INFO L225 Difference]: With dead ends: 59 [2023-11-26 11:48:45,516 INFO L226 Difference]: Without dead ends: 57 [2023-11-26 11:48:45,516 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 11:48:45,518 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:45,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 39 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:45,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-26 11:48:45,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-11-26 11:48:45,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 40 states have (on average 1.275) internal successors, (51), 48 states have internal predecessors, (51), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:48:45,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2023-11-26 11:48:45,528 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 28 [2023-11-26 11:48:45,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:45,529 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2023-11-26 11:48:45,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:45,529 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2023-11-26 11:48:45,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 11:48:45,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:45,532 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:45,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:45,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:45,739 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:45,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:45,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1961293115, now seen corresponding path program 1 times [2023-11-26 11:48:45,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:45,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930471267] [2023-11-26 11:48:45,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:45,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:45,751 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:45,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214477976] [2023-11-26 11:48:45,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:45,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:45,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:45,753 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:45,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:48:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:45,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:48:45,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:45,928 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 11:48:45,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:48:45,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:45,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930471267] [2023-11-26 11:48:45,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:45,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214477976] [2023-11-26 11:48:45,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214477976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:45,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:45,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:48:45,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593078557] [2023-11-26 11:48:45,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:45,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:48:45,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:45,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:48:45,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:45,932 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:45,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:45,949 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2023-11-26 11:48:45,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:48:45,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2023-11-26 11:48:45,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:45,951 INFO L225 Difference]: With dead ends: 57 [2023-11-26 11:48:45,951 INFO L226 Difference]: Without dead ends: 56 [2023-11-26 11:48:45,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:45,952 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 15 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:45,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 37 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:45,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-26 11:48:45,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-26 11:48:45,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.25) internal successors, (50), 47 states have internal predecessors, (50), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:48:45,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2023-11-26 11:48:45,961 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 30 [2023-11-26 11:48:45,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:45,962 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2023-11-26 11:48:45,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:45,962 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2023-11-26 11:48:45,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 11:48:45,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:45,963 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:45,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-26 11:48:46,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-26 11:48:46,169 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:46,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:46,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2114608351, now seen corresponding path program 1 times [2023-11-26 11:48:46,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:46,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562340381] [2023-11-26 11:48:46,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:46,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:46,183 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:46,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1107713121] [2023-11-26 11:48:46,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:46,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:46,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:46,185 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:46,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:48:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:46,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:48:46,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:46,322 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 11:48:46,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:48:46,415 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 11:48:46,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:46,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562340381] [2023-11-26 11:48:46,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:46,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107713121] [2023-11-26 11:48:46,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107713121] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:48:46,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:48:46,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-26 11:48:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713867831] [2023-11-26 11:48:46,417 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:48:46,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 11:48:46,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:46,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:48:46,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:48:46,420 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:48:46,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:46,585 INFO L93 Difference]: Finished difference Result 114 states and 130 transitions. [2023-11-26 11:48:46,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:48:46,586 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2023-11-26 11:48:46,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:46,590 INFO L225 Difference]: With dead ends: 114 [2023-11-26 11:48:46,590 INFO L226 Difference]: Without dead ends: 113 [2023-11-26 11:48:46,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:48:46,591 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 66 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:46,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 152 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:48:46,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-26 11:48:46,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 95. [2023-11-26 11:48:46,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 78 states have internal predecessors, (95), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:48:46,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 119 transitions. [2023-11-26 11:48:46,610 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 119 transitions. Word has length 30 [2023-11-26 11:48:46,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:46,611 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 119 transitions. [2023-11-26 11:48:46,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:48:46,611 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 119 transitions. [2023-11-26 11:48:46,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-26 11:48:46,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:46,612 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:46,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-26 11:48:46,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 11:48:46,813 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:46,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:46,813 INFO L85 PathProgramCache]: Analyzing trace with hash 670544555, now seen corresponding path program 1 times [2023-11-26 11:48:46,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:46,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862077444] [2023-11-26 11:48:46,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:46,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:46,824 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:46,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1434999196] [2023-11-26 11:48:46,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:46,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:46,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:46,828 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:46,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:48:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:46,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:48:46,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:46,987 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 11:48:46,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:48:46,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:46,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862077444] [2023-11-26 11:48:46,988 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:46,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434999196] [2023-11-26 11:48:46,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434999196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:46,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:46,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:48:46,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205351467] [2023-11-26 11:48:46,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:46,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:48:46,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:46,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:48:46,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:48:46,992 INFO L87 Difference]: Start difference. First operand 95 states and 119 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:47,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:47,044 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2023-11-26 11:48:47,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:48:47,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-11-26 11:48:47,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:47,047 INFO L225 Difference]: With dead ends: 101 [2023-11-26 11:48:47,047 INFO L226 Difference]: Without dead ends: 92 [2023-11-26 11:48:47,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:48:47,049 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:47,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 89 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:47,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-26 11:48:47,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-11-26 11:48:47,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 68 states have (on average 1.338235294117647) internal successors, (91), 75 states have internal predecessors, (91), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:48:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 115 transitions. [2023-11-26 11:48:47,061 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 115 transitions. Word has length 31 [2023-11-26 11:48:47,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:47,061 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 115 transitions. [2023-11-26 11:48:47,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 115 transitions. [2023-11-26 11:48:47,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-26 11:48:47,063 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:47,063 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:47,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:47,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 11:48:47,269 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:47,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:47,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2049445602, now seen corresponding path program 1 times [2023-11-26 11:48:47,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:47,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672930406] [2023-11-26 11:48:47,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:47,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:47,280 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:47,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [702554687] [2023-11-26 11:48:47,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:47,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:47,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:47,282 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:47,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:48:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:47,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:48:47,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:47,434 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:48:47,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:48:47,555 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:48:47,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:47,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672930406] [2023-11-26 11:48:47,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:47,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702554687] [2023-11-26 11:48:47,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702554687] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:48:47,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:48:47,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-26 11:48:47,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562892862] [2023-11-26 11:48:47,556 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:48:47,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:48:47,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:47,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:48:47,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:48:47,558 INFO L87 Difference]: Start difference. First operand 92 states and 115 transitions. Second operand has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:48:47,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:47,892 INFO L93 Difference]: Finished difference Result 142 states and 160 transitions. [2023-11-26 11:48:47,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-26 11:48:47,893 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2023-11-26 11:48:47,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:47,895 INFO L225 Difference]: With dead ends: 142 [2023-11-26 11:48:47,895 INFO L226 Difference]: Without dead ends: 141 [2023-11-26 11:48:47,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2023-11-26 11:48:47,897 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 102 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:47,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 228 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:48:47,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-26 11:48:47,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 106. [2023-11-26 11:48:47,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.3461538461538463) internal successors, (105), 85 states have internal predecessors, (105), 15 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-26 11:48:47,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 135 transitions. [2023-11-26 11:48:47,914 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 135 transitions. Word has length 34 [2023-11-26 11:48:47,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:47,914 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 135 transitions. [2023-11-26 11:48:47,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:48:47,915 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 135 transitions. [2023-11-26 11:48:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-26 11:48:47,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:47,916 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:47,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-26 11:48:48,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:48,123 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:48,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:48,124 INFO L85 PathProgramCache]: Analyzing trace with hash 4952566, now seen corresponding path program 1 times [2023-11-26 11:48:48,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:48,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883338292] [2023-11-26 11:48:48,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:48,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:48,134 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:48,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1103963445] [2023-11-26 11:48:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:48,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:48,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:48,141 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:48,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 11:48:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:48,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:48:48,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:48,339 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:48:48,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:48:48,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:48,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883338292] [2023-11-26 11:48:48,340 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:48,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103963445] [2023-11-26 11:48:48,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103963445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:48,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:48,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:48:48,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161884784] [2023-11-26 11:48:48,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:48,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:48:48,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:48,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:48:48,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:48,343 INFO L87 Difference]: Start difference. First operand 106 states and 135 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:48,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:48,362 INFO L93 Difference]: Finished difference Result 106 states and 135 transitions. [2023-11-26 11:48:48,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:48:48,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2023-11-26 11:48:48,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:48,364 INFO L225 Difference]: With dead ends: 106 [2023-11-26 11:48:48,364 INFO L226 Difference]: Without dead ends: 97 [2023-11-26 11:48:48,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:48,366 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 8 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:48,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 37 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-26 11:48:48,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-11-26 11:48:48,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 76 states have internal predecessors, (90), 15 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-26 11:48:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 120 transitions. [2023-11-26 11:48:48,380 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 120 transitions. Word has length 39 [2023-11-26 11:48:48,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:48,381 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 120 transitions. [2023-11-26 11:48:48,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:48,381 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 120 transitions. [2023-11-26 11:48:48,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-26 11:48:48,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:48,383 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:48,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:48,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:48,590 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 11:48:48,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:48,590 INFO L85 PathProgramCache]: Analyzing trace with hash -177943393, now seen corresponding path program 1 times [2023-11-26 11:48:48,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:48,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345240923] [2023-11-26 11:48:48,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:48,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:48,616 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:48:48,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1515347096] [2023-11-26 11:48:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:48,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:48,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:48,619 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:48,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-26 11:48:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:48,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:48:48,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:48,742 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:48:48,742 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:48:48,791 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-26 11:48:48,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:48,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345240923] [2023-11-26 11:48:48,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:48:48,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515347096] [2023-11-26 11:48:48,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515347096] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:48:48,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:48:48,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 6 [2023-11-26 11:48:48,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131716323] [2023-11-26 11:48:48,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:48:48,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:48:48,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:48,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:48:48,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:48:48,793 INFO L87 Difference]: Start difference. First operand 97 states and 120 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:48:48,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:48,827 INFO L93 Difference]: Finished difference Result 97 states and 120 transitions. [2023-11-26 11:48:48,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:48:48,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 42 [2023-11-26 11:48:48,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:48,827 INFO L225 Difference]: With dead ends: 97 [2023-11-26 11:48:48,828 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:48:48,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:48:48,829 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:48,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 48 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:48,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:48:48,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:48:48,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:48,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:48:48,830 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2023-11-26 11:48:48,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:48,831 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:48:48,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:48:48,831 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:48:48,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:48:48,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2023-11-26 11:48:48,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2023-11-26 11:48:48,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2023-11-26 11:48:48,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2023-11-26 11:48:48,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2023-11-26 11:48:48,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2023-11-26 11:48:48,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2023-11-26 11:48:48,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2023-11-26 11:48:48,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2023-11-26 11:48:48,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2023-11-26 11:48:48,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2023-11-26 11:48:48,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2023-11-26 11:48:48,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2023-11-26 11:48:48,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2023-11-26 11:48:48,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 28 remaining) [2023-11-26 11:48:48,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 28 remaining) [2023-11-26 11:48:48,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2023-11-26 11:48:48,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2023-11-26 11:48:48,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2023-11-26 11:48:48,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2023-11-26 11:48:48,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2023-11-26 11:48:48,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2023-11-26 11:48:48,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2023-11-26 11:48:48,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2023-11-26 11:48:48,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2023-11-26 11:48:48,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2023-11-26 11:48:48,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2023-11-26 11:48:48,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2023-11-26 11:48:48,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:49,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:49,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:48:49,304 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-26 11:48:49,304 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2023-11-26 11:48:49,305 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2023-11-26 11:48:49,305 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 44 56) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= 1 ~counter~0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |ULTIMATE.start_main_~d~0#1|) (<= ~counter~0 2147483646) (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648))) [2023-11-26 11:48:49,305 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-26 11:48:49,305 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-26 11:48:49,305 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-11-26 11:48:49,306 INFO L899 garLoopResultBuilder]: For program point L44-2(lines 44 56) no Hoare annotation was computed. [2023-11-26 11:48:49,306 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-26 11:48:49,306 INFO L899 garLoopResultBuilder]: For program point L44-4(lines 44 56) no Hoare annotation was computed. [2023-11-26 11:48:49,306 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2023-11-26 11:48:49,306 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-26 11:48:49,306 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-26 11:48:49,306 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-26 11:48:49,306 INFO L899 garLoopResultBuilder]: For program point L53-1(line 53) no Hoare annotation was computed. [2023-11-26 11:48:49,307 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-26 11:48:49,307 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-26 11:48:49,307 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-26 11:48:49,307 INFO L899 garLoopResultBuilder]: For program point L45-2(line 45) no Hoare annotation was computed. [2023-11-26 11:48:49,307 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-26 11:48:49,307 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2023-11-26 11:48:49,307 INFO L895 garLoopResultBuilder]: At program point L45-4(line 45) the Hoare annotation is: false [2023-11-26 11:48:49,307 INFO L899 garLoopResultBuilder]: For program point L45-5(line 45) no Hoare annotation was computed. [2023-11-26 11:48:49,307 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2023-11-26 11:48:49,310 INFO L895 garLoopResultBuilder]: At program point L37-1(line 37) the Hoare annotation is: (and (= |ULTIMATE.start_main_~d~0#1| 1) (= |ULTIMATE.start_main_~p~0#1| 1) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (= |ULTIMATE.start_main_~q~0#1| 0) (= ~counter~0 1) (= |ULTIMATE.start_main_~B~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648))) [2023-11-26 11:48:49,310 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 34 42) no Hoare annotation was computed. [2023-11-26 11:48:49,310 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-26 11:48:49,310 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-26 11:48:49,311 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-26 11:48:49,311 INFO L899 garLoopResultBuilder]: For program point L54-1(line 54) no Hoare annotation was computed. [2023-11-26 11:48:49,311 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-26 11:48:49,311 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-26 11:48:49,312 INFO L895 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: false [2023-11-26 11:48:49,313 INFO L899 garLoopResultBuilder]: For program point L46-2(lines 44 56) no Hoare annotation was computed. [2023-11-26 11:48:49,313 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-26 11:48:49,313 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:48:49,313 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-26 11:48:49,314 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-26 11:48:49,314 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-26 11:48:49,314 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-26 11:48:49,314 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-26 11:48:49,314 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-26 11:48:49,315 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-26 11:48:49,315 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2023-11-26 11:48:49,315 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-26 11:48:49,315 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-26 11:48:49,315 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-26 11:48:49,316 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-26 11:48:49,316 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-26 11:48:49,316 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:48:49,316 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-26 11:48:49,316 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-11-26 11:48:49,316 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-26 11:48:49,317 INFO L899 garLoopResultBuilder]: For program point L58-2(line 58) no Hoare annotation was computed. [2023-11-26 11:48:49,317 INFO L902 garLoopResultBuilder]: At program point L58-3(line 58) the Hoare annotation is: true [2023-11-26 11:48:49,317 INFO L902 garLoopResultBuilder]: At program point L58-4(line 58) the Hoare annotation is: true [2023-11-26 11:48:49,317 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-26 11:48:49,317 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-26 11:48:49,318 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-26 11:48:49,318 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-11-26 11:48:49,318 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2023-11-26 11:48:49,321 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2023-11-26 11:48:49,321 INFO L899 garLoopResultBuilder]: For program point L34-2(line 34) no Hoare annotation was computed. [2023-11-26 11:48:49,321 INFO L899 garLoopResultBuilder]: For program point L34-3(lines 34 42) no Hoare annotation was computed. [2023-11-26 11:48:49,321 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-26 11:48:49,322 INFO L895 garLoopResultBuilder]: At program point L34-5(lines 34 42) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~r~0#1| 2147483647)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse2 (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648)))) (or (and (= |ULTIMATE.start_main_~d~0#1| 1) (= |ULTIMATE.start_main_~p~0#1| 1) .cse0 .cse1 (= ~counter~0 0) (= |ULTIMATE.start_main_~B~0#1| 1) .cse2) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~d~0#1|) (= ~counter~0 1) .cse2))) [2023-11-26 11:48:49,322 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-11-26 11:48:49,322 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2023-11-26 11:48:49,322 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2023-11-26 11:48:49,323 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-26 11:48:49,323 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-26 11:48:49,323 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (and (= |ULTIMATE.start_main_~d~0#1| 1) (= |ULTIMATE.start_main_~p~0#1| 1) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (= |ULTIMATE.start_main_~q~0#1| 0) (= ~counter~0 1) (= |ULTIMATE.start_main_~B~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648))) [2023-11-26 11:48:49,323 INFO L895 garLoopResultBuilder]: At program point L35-1(line 35) the Hoare annotation is: (and (= |ULTIMATE.start_main_~d~0#1| 1) (= |ULTIMATE.start_main_~p~0#1| 1) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (= |ULTIMATE.start_main_~q~0#1| 0) (= ~counter~0 1) (= |ULTIMATE.start_main_~B~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648))) [2023-11-26 11:48:49,324 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2023-11-26 11:48:49,324 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2023-11-26 11:48:49,324 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-11-26 11:48:49,324 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-11-26 11:48:49,331 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:49,334 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:48:49,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:48:49 BoogieIcfgContainer [2023-11-26 11:48:49,352 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:48:49,352 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:48:49,353 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:48:49,353 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:48:49,354 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:48:41" (3/4) ... [2023-11-26 11:48:49,356 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:48:49,360 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-26 11:48:49,367 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-26 11:48:49,367 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-26 11:48:49,368 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 11:48:49,368 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:48:49,369 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:48:49,496 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:48:49,497 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:48:49,497 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:48:49,498 INFO L158 Benchmark]: Toolchain (without parser) took 8812.42ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 158.4MB in the beginning and 107.4MB in the end (delta: 51.0MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. [2023-11-26 11:48:49,498 INFO L158 Benchmark]: CDTParser took 1.69ms. Allocated memory is still 125.8MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:48:49,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.38ms. Allocated memory is still 186.6MB. Free memory was 158.4MB in the beginning and 147.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 11:48:49,499 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.96ms. Allocated memory is still 186.6MB. Free memory was 147.2MB in the beginning and 145.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:48:49,500 INFO L158 Benchmark]: Boogie Preprocessor took 45.17ms. Allocated memory is still 186.6MB. Free memory was 145.1MB in the beginning and 143.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:48:49,501 INFO L158 Benchmark]: RCFGBuilder took 596.51ms. Allocated memory is still 186.6MB. Free memory was 143.0MB in the beginning and 143.6MB in the end (delta: -595.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:48:49,501 INFO L158 Benchmark]: TraceAbstraction took 7694.93ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 143.6MB in the beginning and 112.6MB in the end (delta: 30.9MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. [2023-11-26 11:48:49,502 INFO L158 Benchmark]: Witness Printer took 144.59ms. Allocated memory is still 224.4MB. Free memory was 112.6MB in the beginning and 107.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:48:49,504 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.69ms. Allocated memory is still 125.8MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.38ms. Allocated memory is still 186.6MB. Free memory was 158.4MB in the beginning and 147.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.96ms. Allocated memory is still 186.6MB. Free memory was 147.2MB in the beginning and 145.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.17ms. Allocated memory is still 186.6MB. Free memory was 145.1MB in the beginning and 143.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 596.51ms. Allocated memory is still 186.6MB. Free memory was 143.0MB in the beginning and 143.6MB in the end (delta: -595.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7694.93ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 143.6MB in the beginning and 112.6MB in the end (delta: 30.9MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. * Witness Printer took 144.59ms. Allocated memory is still 224.4MB. Free memory was 112.6MB in the beginning and 107.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 77 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 421 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 413 mSDsluCounter, 1512 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 938 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 516 IncrementalHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 574 mSDtfsCounter, 516 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 488 GetRequests, 412 SyntacticMatches, 3 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=4, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 126 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 41 PreInvPairs, 50 NumberOfFragments, 141 HoareAnnotationTreeSize, 41 FomulaSimplifications, 460 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 10 FomulaSimplificationsInter, 260 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 370 NumberOfCodeBlocks, 370 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 459 ConstructedInterpolants, 0 QuantifiedInterpolants, 1409 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1253 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 248/264 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 28 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((((((d == 1) && (p == 1)) && (r <= 2147483647)) && (q == 0)) && (counter == 0)) && (B == 1)) && (0 <= (r + 2147483648))) || (((((r <= 2147483647) && (q == 0)) && (1 <= d)) && (counter == 1)) && (0 <= (r + 2147483648)))) - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: ((((((r <= 2147483647) && (1 <= counter)) && (q == 0)) && (1 <= d)) && (counter <= 2147483646)) && (0 <= (r + 2147483648))) RESULT: Ultimate proved your program to be correct! [2023-11-26 11:48:49,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1389fd86-0d9c-407f-a2ac-e4031fd48e88/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE